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https://github.com/kmoskwiak/videojs-resolution-switcher.git
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Bugfixes
videojs.addClass() changed to videojs.dom.addClass() videojs.plugin() changed to videojs.registerPlugin() player.play().handleTechSeeked_() undefined function on line 185 fixed
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Razak Zakari
GitHub
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368
videojs-resolution-switcher.js
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368
videojs-resolution-switcher.js
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/*! videojs-resolution-switcher - 2015-7-26
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* Copyright (c) 2016 Kasper Moskwiak
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* Modified by Pierre Kraft and Derk-Jan Hartman
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* Licensed under the Apache-2.0 license. */
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(function() {
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/* jshint eqnull: true*/
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/* global require */
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'use strict';
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var videojs = null;
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if(typeof window.videojs === 'undefined' && typeof require === 'function') {
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videojs = require('video.js');
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} else {
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videojs = window.videojs;
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}
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(function(window, videojs) {
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var videoJsResolutionSwitcher,
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defaults = {
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ui: true
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};
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/*
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* Resolution menu item
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*/
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var MenuItem = videojs.getComponent('MenuItem');
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var ResolutionMenuItem = videojs.extend(MenuItem, {
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constructor: function(player, options){
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options.selectable = true;
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// Sets this.player_, this.options_ and initializes the component
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MenuItem.call(this, player, options);
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this.src = options.src;
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player.on('resolutionchange', videojs.bind(this, this.update));
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}
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} );
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ResolutionMenuItem.prototype.handleClick = function(event){
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MenuItem.prototype.handleClick.call(this,event);
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this.player_.currentResolution(this.options_.label);
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};
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ResolutionMenuItem.prototype.update = function(){
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var selection = this.player_.currentResolution();
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this.selected(this.options_.label === selection.label);
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};
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MenuItem.registerComponent('ResolutionMenuItem', ResolutionMenuItem);
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/*
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* Resolution menu button
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*/
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var MenuButton = videojs.getComponent('MenuButton');
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var ResolutionMenuButton = videojs.extend(MenuButton, {
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constructor: function(player, options){
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this.label = document.createElement('span');
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options.label = 'Quality';
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// Sets this.player_, this.options_ and initializes the component
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MenuButton.call(this, player, options);
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this.el().setAttribute('aria-label','Quality');
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this.controlText('Quality');
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if(options.dynamicLabel){
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videojs.dom.addClass(this.label, 'vjs-resolution-button-label');
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this.el().appendChild(this.label);
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}else{
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var staticLabel = document.createElement('span');
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videojs.dom.addClass(staticLabel, 'vjs-menu-icon');
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this.el().appendChild(staticLabel);
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}
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player.on('updateSources', videojs.bind( this, this.update ) );
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}
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} );
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ResolutionMenuButton.prototype.createItems = function(){
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var menuItems = [];
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var labels = (this.sources && this.sources.label) || {};
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// FIXME order is not guaranteed here.
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for (var key in labels) {
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if (labels.hasOwnProperty(key)) {
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menuItems.push(new ResolutionMenuItem(
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this.player_,
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{
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label: key,
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src: labels[key],
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selected: key === (this.currentSelection ? this.currentSelection.label : false)
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})
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);
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}
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}
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return menuItems;
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};
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ResolutionMenuButton.prototype.update = function(){
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this.sources = this.player_.getGroupedSrc();
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this.currentSelection = this.player_.currentResolution();
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this.label.innerHTML = this.currentSelection ? this.currentSelection.label : '';
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return MenuButton.prototype.update.call(this);
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};
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ResolutionMenuButton.prototype.buildCSSClass = function(){
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return MenuButton.prototype.buildCSSClass.call( this ) + ' vjs-resolution-button';
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};
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MenuButton.registerComponent('ResolutionMenuButton', ResolutionMenuButton);
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/**
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* Initialize the plugin.
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* @param {object} [options] configuration for the plugin
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*/
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videoJsResolutionSwitcher = function(options) {
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var settings = videojs.mergeOptions(defaults, options),
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player = this,
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groupedSrc = {},
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currentSources = {},
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currentResolutionState = {};
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/**
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* Updates player sources or returns current source URL
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* @param {Array} [src] array of sources [{src: '', type: '', label: '', res: ''}]
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* @returns {Object|String|Array} videojs player object if used as setter or current source URL, object, or array of sources
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*/
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player.updateSrc = function(src){
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//Return current src if src is not given
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if(!src){ return player.src(); }
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// Only add those sources which we can (maybe) play
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src = src.filter( function(source) {
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try {
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return ( player.canPlayType( source.type ) !== '' );
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} catch (e) {
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// If a Tech doesn't yet have canPlayType just add it
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return true;
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}
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});
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//Sort sources
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this.currentSources = src.sort(compareResolutions);
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this.groupedSrc = bucketSources(this.currentSources);
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// Pick one by default
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var chosen = chooseSrc(this.groupedSrc, this.currentSources);
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this.currentResolutionState = {
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label: chosen.label,
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sources: chosen.sources
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};
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player.trigger('updateSources');
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player.setSourcesSanitized(chosen.sources, chosen.label);
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player.trigger('resolutionchange');
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return player;
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};
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/**
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* Returns current resolution or sets one when label is specified
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* @param {String} [label] label name
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* @param {Function} [customSourcePicker] custom function to choose source. Takes 2 arguments: sources, label. Must return player object.
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* @returns {Object} current resolution object {label: '', sources: []} if used as getter or player object if used as setter
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*/
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player.currentResolution = function(label, customSourcePicker){
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if(label == null) { return this.currentResolutionState; }
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// Lookup sources for label
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if(!this.groupedSrc || !this.groupedSrc.label || !this.groupedSrc.label[label]){
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return;
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}
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var sources = this.groupedSrc.label[label];
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// Remember player state
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var currentTime = player.currentTime();
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var isPaused = player.paused();
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// Hide bigPlayButton
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if(!isPaused && this.player_.options_.bigPlayButton){
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this.player_.bigPlayButton.hide();
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}
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// Change player source and wait for loadeddata event, then play video
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// loadedmetadata doesn't work right now for flash.
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// Probably because of https://github.com/videojs/video-js-swf/issues/124
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// If player preload is 'none' and then loadeddata not fired. So, we need timeupdate event for seek handle (timeupdate doesn't work properly with flash)
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var handleSeekEvent = 'loadeddata';
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if(this.player_.techName_ !== 'Youtube' && this.player_.preload() === 'none' && this.player_.techName_ !== 'Flash') {
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handleSeekEvent = 'timeupdate';
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}
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player
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.setSourcesSanitized(sources, label, customSourcePicker || settings.customSourcePicker)
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.one(handleSeekEvent, function() {
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player.currentTime(currentTime);
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player.handleTechSeeked_();
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if(!isPaused){
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// Start playing and hide loadingSpinner (flash issue ?)
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player.play();
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player.handleTechSeeked_()
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}
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player.trigger('resolutionchange');
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});
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return player;
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};
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/**
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* Returns grouped sources by label, resolution and type
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* @returns {Object} grouped sources: { label: { key: [] }, res: { key: [] }, type: { key: [] } }
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*/
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player.getGroupedSrc = function(){
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return this.groupedSrc;
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};
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player.setSourcesSanitized = function(sources, label, customSourcePicker) {
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this.currentResolutionState = {
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label: label,
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sources: sources
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};
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if(typeof customSourcePicker === 'function'){
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return customSourcePicker(player, sources, label);
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}
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player.src(sources.map(function(src) {
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return {src: src.src, type: src.type, res: src.res};
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}));
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return player;
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};
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/**
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* Method used for sorting list of sources
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* @param {Object} a - source object with res property
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* @param {Object} b - source object with res property
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* @returns {Number} result of comparation
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*/
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function compareResolutions(a, b){
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if(!a.res || !b.res){ return 0; }
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return (+b.res)-(+a.res);
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}
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/**
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* Group sources by label, resolution and type
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* @param {Array} src Array of sources
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* @returns {Object} grouped sources: { label: { key: [] }, res: { key: [] }, type: { key: [] } }
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*/
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function bucketSources(src){
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var resolutions = {
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label: {},
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res: {},
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type: {}
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};
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src.map(function(source) {
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initResolutionKey(resolutions, 'label', source);
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initResolutionKey(resolutions, 'res', source);
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initResolutionKey(resolutions, 'type', source);
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appendSourceToKey(resolutions, 'label', source);
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appendSourceToKey(resolutions, 'res', source);
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appendSourceToKey(resolutions, 'type', source);
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});
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return resolutions;
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}
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function initResolutionKey(resolutions, key, source) {
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if(resolutions[key][source[key]] == null) {
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resolutions[key][source[key]] = [];
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}
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}
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function appendSourceToKey(resolutions, key, source) {
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resolutions[key][source[key]].push(source);
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}
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/**
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* Choose src if option.default is specified
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* @param {Object} groupedSrc {res: { key: [] }}
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* @param {Array} src Array of sources sorted by resolution used to find high and low res
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* @returns {Object} {res: string, sources: []}
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*/
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function chooseSrc(groupedSrc, src){
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var selectedRes = settings['default']; // use array access as default is a reserved keyword
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var selectedLabel = '';
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if (selectedRes === 'high') {
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selectedRes = src[0].res;
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selectedLabel = src[0].label;
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} else if (selectedRes === 'low' || selectedRes == null || !groupedSrc.res[selectedRes]) {
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// Select low-res if default is low or not set
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selectedRes = src[src.length - 1].res;
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selectedLabel = src[src.length -1].label;
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} else if (groupedSrc.res[selectedRes]) {
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selectedLabel = groupedSrc.res[selectedRes][0].label;
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}
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return {res: selectedRes, label: selectedLabel, sources: groupedSrc.res[selectedRes]};
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}
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function initResolutionForYt(player){
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// Map youtube qualities names
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var _yts = {
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highres: {res: 1080, label: '1080', yt: 'highres'},
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hd1080: {res: 1080, label: '1080', yt: 'hd1080'},
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hd720: {res: 720, label: '720', yt: 'hd720'},
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large: {res: 480, label: '480', yt: 'large'},
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medium: {res: 360, label: '360', yt: 'medium'},
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small: {res: 240, label: '240', yt: 'small'},
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tiny: {res: 144, label: '144', yt: 'tiny'},
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auto: {res: 0, label: 'auto', yt: 'auto'}
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};
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// Overwrite default sourcePicker function
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var _customSourcePicker = function(_player, _sources, _label){
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// Note that setPlayebackQuality is a suggestion. YT does not always obey it.
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player.tech_.ytPlayer.setPlaybackQuality(_sources[0]._yt);
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player.trigger('updateSources');
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return player;
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};
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settings.customSourcePicker = _customSourcePicker;
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// Init resolution
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player.tech_.ytPlayer.setPlaybackQuality('auto');
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// This is triggered when the resolution actually changes
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player.tech_.ytPlayer.addEventListener('onPlaybackQualityChange', function(event){
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for(var res in _yts) {
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if(res.yt === event.data) {
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player.currentResolution(res.label, _customSourcePicker);
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return;
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}
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}
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});
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// We must wait for play event
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player.one('play', function(){
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var qualities = player.tech_.ytPlayer.getAvailableQualityLevels();
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var _sources = [];
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qualities.map(function(q){
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_sources.push({
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src: player.src().src,
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type: player.src().type,
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label: _yts[q].label,
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res: _yts[q].res,
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_yt: _yts[q].yt
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});
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});
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player.groupedSrc = bucketSources(_sources);
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var chosen = {label: 'auto', res: 0, sources: player.groupedSrc.label.auto};
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this.currentResolutionState = {
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label: chosen.label,
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sources: chosen.sources
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};
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player.trigger('updateSources');
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player.setSourcesSanitized(chosen.sources, chosen.label, _customSourcePicker);
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});
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}
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player.ready(function(){
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if( settings.ui ) {
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var menuButton = new ResolutionMenuButton(player, settings);
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player.controlBar.resolutionSwitcher = player.controlBar.el_.insertBefore(menuButton.el_, player.controlBar.getChild('fullscreenToggle').el_);
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player.controlBar.resolutionSwitcher.dispose = function(){
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this.parentNode.removeChild(this);
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};
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}
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if(player.options_.sources.length > 1){
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// tech: Html5 and Flash
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// Create resolution switcher for videos form <source> tag inside <video>
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player.updateSrc(player.options_.sources);
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}
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if(player.techName_ === 'Youtube'){
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// tech: YouTube
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initResolutionForYt(player);
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}
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});
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};
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// register the plugin
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videojs.registerPlugin('videoJsResolutionSwitcher', videoJsResolutionSwitcher);
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})(window, videojs);
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})();
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