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      1 // Copyright 2014 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 // EMEApp is responsible for starting playback on the eme_player.html page.
      6 // It selects the suitable player based on key system and other test options.
      7 function EMEApp(testConfig) {
      8   this.video_ = null;
      9   this.testConfig_ = testConfig;
     10   this.updateDocument(testConfig);
     11 }
     12 
     13 EMEApp.prototype.createPlayer = function() {
     14   // Load document test configuration.
     15   this.updateTestConfig();
     16   if (this.video_) {
     17     Utils.timeLog('Delete old video tag.');
     18     this.video_.pause();
     19     this.video_.remove();
     20     delete(this.video_);
     21   }
     22 
     23   this.video_ = document.createElement('video');
     24   this.video_.controls = true;
     25   this.video_.preload = true;
     26   this.video_.width = 848;
     27   this.video_.height = 480;
     28   var videoSpan = document.getElementById(VIDEO_ELEMENT_ID);
     29   if (videoSpan)
     30     videoSpan.appendChild(this.video_);
     31   else
     32     document.body.appendChild(this.video_);
     33 
     34   var videoPlayer = PlayerUtils.createPlayer(this.video_, this.testConfig_);
     35   if (!videoPlayer) {
     36     Utils.timeLog('Cannot create a media player.');
     37     return;
     38   }
     39   Utils.timeLog('Using ' + videoPlayer.constructor.name);
     40   if (this.testConfig_.runFPS)
     41     FPSObserver.observe(this.video_);
     42 
     43   videoPlayer.init();
     44   return videoPlayer;
     45 };
     46 
     47 EMEApp.prototype.updateDocument = function(testConfig) {
     48   // Update document lists with test configuration values.
     49   Utils.addOptions(KEYSYSTEM_ELEMENT_ID, KEY_SYSTEMS);
     50   Utils.addOptions(MEDIA_TYPE_ELEMENT_ID, MEDIA_TYPES);
     51   Utils.addOptions(USE_PREFIXED_EME_ID, EME_VERSIONS_OPTIONS,
     52                    EME_DISABLED_OPTIONS);
     53   document.getElementById(MEDIA_FILE_ELEMENT_ID).value =
     54       testConfig.mediaFile || DEFAULT_MEDIA_FILE;
     55   document.getElementById(LICENSE_SERVER_ELEMENT_ID).value =
     56       testConfig.licenseServerURL || DEFAULT_LICENSE_SERVER;
     57   if (testConfig.keySystem)
     58     Utils.ensureOptionInList(KEYSYSTEM_ELEMENT_ID, testConfig.keySystem);
     59   if (testConfig.mediaType)
     60     Utils.ensureOptionInList(MEDIA_TYPE_ELEMENT_ID, testConfig.mediaType);
     61   document.getElementById(USE_MSE_ELEMENT_ID).value = testConfig.useMSE;
     62   if (testConfig.usePrefixedEME)
     63     document.getElementById(USE_PREFIXED_EME_ID).value = EME_PREFIXED_VERSION;
     64 };
     65 
     66 EMEApp.prototype.updateTestConfig = function() {
     67   // Reload test configuration from document.
     68   this.testConfig_.mediaFile =
     69       document.getElementById(MEDIA_FILE_ELEMENT_ID).value;
     70   this.testConfig_.keySystem =
     71       document.getElementById(KEYSYSTEM_ELEMENT_ID).value;
     72   this.testConfig_.mediaType =
     73       document.getElementById(MEDIA_TYPE_ELEMENT_ID).value;
     74   this.testConfig_.useMSE =
     75       document.getElementById(USE_MSE_ELEMENT_ID).value == 'true';
     76   this.testConfig_.usePrefixedEME = (
     77       document.getElementById(USE_PREFIXED_EME_ID).value ==
     78       EME_PREFIXED_VERSION);
     79   this.testConfig_.licenseServerURL =
     80       document.getElementById(LICENSE_SERVER_ELEMENT_ID).value;
     81 };
     82