The Tor Browser: content/media/test/manifest.js@6474c204b198 (annotated)

content/media/test/manifest.js@6474c204b198 (annotated)

content/media/test/manifest.js

Wed, 31 Dec 2014 06:09:35 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 06:09:35 +0100
changeset 0: 6474c204b198
permissions: -rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

 // In each list of tests below, test file types that are not supported should
 // be ignored. To make sure tests respect that, we include a file of type
 // "bogus/duh" in each list.
 // These are small test files, good for just seeing if something loads. We
 // really only need one test file per backend here.
 var gSmallTests = [
   { name:"small-shot.ogg", type:"audio/ogg", duration:0.276 },
   { name:"small-shot.m4a", type:"audio/mp4", duration:0.29 },
   { name:"small-shot.mp3", type:"audio/mpeg", duration:0.27 },
   { name:"small-shot-mp3.mp4", type:"audio/mp4; codecs=mp3", duration:0.34 },
   { name:"r11025_s16_c1.wav", type:"audio/x-wav", duration:1.0 },
   { name:"320x240.ogv", type:"video/ogg", width:320, height:240, duration:0.266 },
   { name:"seek.webm", type:"video/webm", width:320, height:240, duration:3.966 },
   { name:"vp9.webm", type:"video/webm", width:320, height:240, duration:4 },
   { name:"detodos.opus", type:"audio/ogg; codecs=opus", duration:2.9135 },
   { name:"gizmo.mp4", type:"video/mp4", duration:5.56 },
   { name:"bogus.duh", type:"bogus/duh" }
 ];
 // Used by test_bug654550.html, for videoStats preference
 var gVideoTests = [
   { name:"320x240.ogv", type:"video/ogg", width:320, height:240, duration:0.266 },
   { name:"seek.webm", type:"video/webm", width:320, height:240, duration:3.966 },
   { name:"bogus.duh", type:"bogus/duh" }
 ];
 // Used by test_progress to ensure we get the correct progress information
 // during resource download.
 var gProgressTests = [
   { name:"r11025_u8_c1.wav", type:"audio/x-wav", duration:1.0, size:11069 },
   { name:"big.wav", type:"audio/x-wav", duration:9.278981, size:102444 },
   { name:"seek.ogv", type:"video/ogg", duration:3.966, size:285310 },
   { name:"320x240.ogv", type:"video/ogg", width:320, height:240, duration:0.266, size:28942 },
   { name:"seek.webm", type:"video/webm", duration:3.966, size:215529 },
   { name:"gizmo.mp4", type:"video/mp4", duration:5.56, size:383631 },
   { name:"bogus.duh", type:"bogus/duh" }
 ];
 // Used by test_played.html
 var gPlayedTests = [
   { name:"big.wav", type:"audio/x-wav", duration:9.0 },
   { name:"seek.ogv", type:"video/ogg", duration:3.966 },
   { name:"seek.webm", type:"video/webm", duration:3.966 },
   { name:"gizmo.mp4", type:"video/mp4", duration:5.56 },
   { name:"owl.mp3", type:"audio/mpeg", duration:3.29 },
   { name:"vbr.mp3", type:"audio/mpeg", duration:10.0 },
   { name:"bug495794.ogg", type:"audio/ogg", duration:0.3 }
 ];
 // Used by test_mozLoadFrom.  Need one test file per decoder backend, plus
 // anything for testing clone-specific bugs.
 var cloneKey = Math.floor(Math.random()*100000000);
 var gCloneTests = gSmallTests.concat([
   // Actual duration is ~200ms, we have Content-Duration lie about it.
   { name:"bug520908.ogv", type:"video/ogg", duration:9000 },
   // short-video is more like 1s, so if you load this twice you'll get an unexpected duration
   { name:"dynamic_resource.sjs?key=" + cloneKey + "&res1=320x240.ogv&res2=short-video.ogv",
     type:"video/ogg", duration:0.266 },
 ]);
 // Used by test_play_twice.  Need one test file per decoder backend, plus
 // anything for testing bugs that occur when replying a played file.
 var gReplayTests = gSmallTests.concat([
   { name:"bug533822.ogg", type:"audio/ogg" },
 ]);
 // Used by test_paused_after_ended. Need one test file per decoder backend, plus
 // anything for testing bugs that occur when replying a played file.
 var gPausedAfterEndedTests = gSmallTests.concat([
   { name:"r11025_u8_c1.wav", type:"audio/x-wav", duration:1.0 },
   { name:"small-shot.ogg", type:"video/ogg", duration:0.276 }
 ]);
 // Test the mozHasAudio property, and APIs that detect different kinds of
 // tracks
 var gTrackTests = [
   { name:"big.wav", type:"audio/x-wav", duration:9.278981, size:102444, hasAudio:true, hasVideo:false },
   { name:"320x240.ogv", type:"video/ogg", width:320, height:240, duration:0.266, size:28942, hasAudio:false, hasVideo:true },
   { name:"short-video.ogv", type:"video/ogg", duration:1.081, hasAudio:true, hasVideo:true },
   { name:"seek.webm", type:"video/webm", duration:3.966, size:215529, hasAudio:false, hasVideo:true },
   { name:"bogus.duh", type:"bogus/duh" }
 ];
 // Used by any media recorder test. Need one test file per decoder backend
 // currently supported by the media encoder.
 var gMediaRecorderTests = [
   { name:"detodos.opus", type:"audio/ogg; codecs=opus", duration:2.9135 }
 ];
 // These are files that we want to make sure we can play through.  We can
 // also check metadata.  Put files of the same type together in this list so if
 // something crashes we have some idea of which backend is responsible.
 // Used by test_playback, which expects no error event and one ended event.
 var gPlayTests = [
   // 8-bit samples
   { name:"r11025_u8_c1.wav", type:"audio/x-wav", duration:1.0 },
   // 8-bit samples, file is truncated
   { name:"r11025_u8_c1_trunc.wav", type:"audio/x-wav", duration:1.8 },
   // file has trailing non-PCM data
   { name:"r11025_s16_c1_trailing.wav", type:"audio/x-wav", duration:1.0 },
   // file with list chunk
   { name:"r16000_u8_c1_list.wav", type:"audio/x-wav", duration:4.2 },
   // Ogg stream without eof marker
   { name:"bug461281.ogg", type:"application/ogg", duration:2.208 },
   // oggz-chop stream
   { name:"bug482461.ogv", type:"video/ogg", duration:4.34 },
   // Theora only oggz-chop stream
   { name:"bug482461-theora.ogv", type:"video/ogg", duration:4.138 },
   // With first frame a "duplicate" (empty) frame.
   { name:"bug500311.ogv", type:"video/ogg", duration:1.96 },
   // Small audio file
   { name:"small-shot.ogg", type:"video/ogg", duration:0.276 },
   // More audio in file than video.
   { name:"short-video.ogv", type:"video/ogg", duration:1.081 },
   // First Theora data packet is zero bytes.
   { name:"bug504613.ogv", type:"video/ogg", duration:Number.NaN },
   // Multiple audio streams.
   { name:"bug516323.ogv", type:"video/ogg", duration:4.208 },
   // oggz-chop with non-keyframe as first frame
   { name:"bug556821.ogv", type:"video/ogg", duration:2.551 },
   // Encoded with vorbis beta1, includes unusually sized codebooks
   { name:"beta-phrasebook.ogg", type:"audio/ogg", duration:4.01 },
   // Small file, only 1 frame with audio only.
   { name:"bug520493.ogg", type:"audio/ogg", duration:0.458 },
   // Small file with vorbis comments with 0 length values and names.
   { name:"bug520500.ogg", type:"audio/ogg", duration:0.123 },
   // Various weirdly formed Ogg files
   { name:"bug499519.ogv", type:"video/ogg", duration:0.24 },
   { name:"bug506094.ogv", type:"video/ogg", duration:0 },
   { name:"bug498855-1.ogv", type:"video/ogg", duration:0.24 },
   { name:"bug498855-2.ogv", type:"video/ogg", duration:0.24 },
   { name:"bug498855-3.ogv", type:"video/ogg", duration:0.24 },
   { name:"bug504644.ogv", type:"video/ogg", duration:1.6 },
   { name:"chain.ogv", type:"video/ogg", duration:Number.NaN },
   { name:"bug523816.ogv", type:"video/ogg", duration:0.533 },
   { name:"bug495129.ogv", type:"video/ogg", duration:2.41 },
   { name:"bug498380.ogv", type:"video/ogg", duration:0.533 },
   { name:"bug495794.ogg", type:"audio/ogg", duration:0.3 },
   { name:"bug557094.ogv", type:"video/ogg", duration:0.24 },
   { name:"multiple-bos.ogg", type:"video/ogg", duration:0.431 },
   { name:"audio-overhang.ogg", type:"audio/ogg", duration:2.3 },
   { name:"video-overhang.ogg", type:"audio/ogg", duration:3.966 },
   // bug461281.ogg with the middle second chopped out.
   { name:"audio-gaps.ogg", type:"audio/ogg", duration:2.208 },
   // Test playback/metadata work after a redirect
   { name:"redirect.sjs?domain=mochi.test:8888&file=320x240.ogv",
     type:"video/ogg", duration:0.266 },
   // Test playback of a webm file
   { name:"seek.webm", type:"video/webm", duration:3.966 },
   // Test playback of a WebM file with non-zero start time.
   { name:"split.webm", type:"video/webm", duration:1.967 },
   // Test playback of a WebM file with vp9 video
   //{ name:"vp9.webm", type:"video/webm", duration:4 },
   { name:"vp9cake.webm", type:"video/webm", duration:7.966 },
   // Test playback of a raw file
   { name:"seek.yuv", type:"video/x-raw-yuv", duration:1.833 },
   // A really short, low sample rate, single channel file. This tests whether
   // we can handle playing files when only push very little audio data to the
   // hardware.
   { name:"spacestorm-1000Hz-100ms.ogg", type:"audio/ogg", duration:0.099 },
   // Opus data in an ogg container
   { name:"detodos.opus", type:"audio/ogg; codecs=opus", duration:2.9135 },
   // Opus data in a webm container
   { name:"detodos.webm", type:"audio/webm; codecs=opus", duration:2.9135 },
   // Multichannel Opus in an ogg container
   { name:"test-1-mono.opus", type:"audio/ogg; codecs=opus", duration:1.044 },
   { name:"test-2-stereo.opus", type:"audio/ogg; codecs=opus", duration:2.925 },
   { name:"test-3-LCR.opus", type:"audio/ogg; codecs=opus", duration:4.214 },
   { name:"test-4-quad.opus", type:"audio/ogg; codecs=opus", duration:6.234 },
   { name:"test-5-5.0.opus", type:"audio/ogg; codecs=opus", duration:7.558 },
   { name:"test-6-5.1.opus", type:"audio/ogg; codecs=opus", duration:10.333 },
   { name:"test-7-6.1.opus", type:"audio/ogg; codecs=opus", duration:11.690 },
   { name:"test-8-7.1.opus", type:"audio/ogg; codecs=opus", duration:13.478 },
   { name:"gizmo.mp4", type:"video/mp4", duration:5.56 },
   { name:"small-shot.m4a", type:"audio/mp4", duration:0.29 },
   { name:"small-shot.mp3", type:"audio/mpeg", duration:0.27 },
   { name:"owl.mp3", type:"audio/mpeg", duration:3.29 },
   // owl.mp3 as above, but with something funny going on in the ID3v2 tag
   // that causes DirectShow to fail.
   { name:"owl-funny-id3.mp3", type:"audio/mpeg", duration:3.29 },
   // owl.mp3 as above, but with something even funnier going on in the ID3v2 tag
   // that causes DirectShow to fail.
   { name:"owl-funnier-id3.mp3", type:"audio/mpeg", duration:3.29 },
   // One second of silence with ~140KB of ID3 tags. Usually when the first MP3
   // frame is at such a high offset into the file, MP3FrameParser will give up
   // and report that the stream is not MP3. However, it does not count ID3 tags
   // in that offset. This test case makes sure that ID3 exclusion holds.
   { name:"huge-id3.mp3", type:"audio/mpeg", duration:1.00 },
   // A truncated VBR MP3 with just enough frames to keep most decoders happy.
   // The Xing header reports the length of the file to be around 10 seconds, but
   // there is really only one second worth of data. We want MP3FrameParser to
   // trust the header, so this should be reported as 10 seconds.
   { name:"vbr-head.mp3", type:"audio/mpeg", duration:10.00 },
   // Invalid file
   { name:"bogus.duh", type:"bogus/duh", duration:Number.NaN }
 ];
 // A file for each type we can support.
 var gSnifferTests = [
   { name:"big.wav", type:"audio/x-wav", duration:9.278981, size:102444 },
   { name:"320x240.ogv", type:"video/ogg", width:320, height:240, duration:0.233, size:28942 },
   { name:"seek.webm", type:"video/webm", duration:3.966, size:215529 },
   { name:"gizmo.mp4", type:"video/mp4", duration:5.56, size:383631 },
   // A mp3 file with id3 tags.
   { name:"id3tags.mp3", type:"audio/mpeg", duration:0.28, size:3530},
   { name:"bogus.duh", type:"bogus/duh" }
 ];
 // Files we must reject as invalid.
 var gInvalidTests = [
   { name:"invalid-m0c0.opus", type:"audio/ogg; codecs=opus"},
   { name:"invalid-m0c3.opus", type:"audio/ogg; codecs=opus"},
   { name:"invalid-m1c0.opus", type:"audio/ogg; codecs=opus"},
   { name:"invalid-m1c9.opus", type:"audio/ogg; codecs=opus"},
   { name:"invalid-m2c0.opus", type:"audio/ogg; codecs=opus"},
   { name:"invalid-m2c1.opus", type:"audio/ogg; codecs=opus"},
   { name:"invalid-cmap-short.opus", type:"audio/ogg; codecs=opus"},
   { name:"invalid-cmap-s0c0.opus", type:"audio/ogg; codecs=opus"},
   { name:"invalid-cmap-s0c2.opus", type:"audio/ogg; codecs=opus"},
   { name:"invalid-cmap-s1c2.opus", type:"audio/ogg; codecs=opus"},
   { name:"invalid-preskip.webm", type:"audio/webm; codecs=opus"},
 ];
 // Converts a path/filename to a file:// URI which we can load from disk.
 // Optionally checks whether the file actually exists on disk at the location
 // we've specified.
 function fileUriToSrc(path, mustExist) {
   // android mochitest doesn't support file://
   if (navigator.appVersion.indexOf("Android") != -1 || SpecialPowers.Services.appinfo.name == "B2G")
     return path;
   const Ci = SpecialPowers.Ci;
   const Cc = SpecialPowers.Cc;
   const Cr = SpecialPowers.Cr;
   var dirSvc = Cc["@mozilla.org/file/directory_service;1"].
                getService(Ci.nsIProperties);
   var f = dirSvc.get("CurWorkD", Ci.nsILocalFile);
   var split = path.split("/");
   for(var i = 0; i < split.length; ++i) {
     f.append(split[i]);
   }
   if (mustExist && !f.exists()) {
     ok(false, "We expected '" + path + "' to exist, but it doesn't!");
   }
   return f.path;
 }
 // Returns true if two TimeRanges are equal, false otherwise
 function range_equals(r1, r2) {
   if (r1.length != r2.length) {
     return false;
   }
   for (var i = 0; i < r1.length; i++) {
     if (r1.start(i) != r2.start(i) || r1.end(i) != r2.end(i)) {
       return false;
     }
   }
   return true;
 }
 // These are URIs to files that we use to check that we don't leak any state
 // or other information such that script can determine stuff about a user's
 // environment. Used by test_info_leak.
 var gInfoLeakTests = [
   {
     type: 'video/ogg',
     src: fileUriToSrc("tests/content/media/test/320x240.ogv", true),
   },{
     type: 'video/ogg',
     src: fileUriToSrc("tests/content/media/test/404.ogv", false),
   }, {
     type: 'audio/x-wav',
     src: fileUriToSrc("tests/content/media/test/r11025_s16_c1.wav", true),
   }, {
     type: 'audio/x-wav',
     src: fileUriToSrc("tests/content/media/test/404.wav", false),
   }, {
     type: 'audio/ogg',
     src: fileUriToSrc("tests/content/media/test/bug461281.ogg", true),
   }, {
     type: 'audio/ogg',
     src: fileUriToSrc("tests/content/media/test/404.ogg", false),
   }, {
     type: 'video/webm',
     src: fileUriToSrc("tests/content/media/test/seek.webm", true),
   }, {
     type: 'video/webm',
     src: fileUriToSrc("tests/content/media/test/404.webm", false),
   }, {
     type: 'video/ogg',
     src: 'http://localhost/404.ogv',
   }, {
     type: 'audio/x-wav',
     src: 'http://localhost/404.wav',
   }, {
     type: 'video/webm',
     src: 'http://localhost/404.webm',
   }, {
     type: 'video/ogg',
     src: 'http://example.com/tests/content/media/test/test_info_leak.html'
   }, {
     type: 'audio/ogg',
     src: 'http://example.com/tests/content/media/test/test_info_leak.html'
   }
 ];
 // These are files that must fire an error during load or playback, and do not
 // cause a crash.  Put files of the same type together in this list so if
 // something crashes we have some idea of which backend is responsible.  Used
 // by test_playback_errors, which expects one error event and no ended event.
 // Put files of the same type together in this list so if something crashes
 // we have some idea of which backend is responsible.
 var gErrorTests = [
   { name:"bogus.wav", type:"audio/x-wav" },
   { name:"bogus.ogv", type:"video/ogg" },
   { name:"448636.ogv", type:"video/ogg" },
   { name:"bug504843.ogv", type:"video/ogg" },
   { name:"bug501279.ogg", type:"audio/ogg" },
   { name:"bug580982.webm", type:"video/webm" },
   { name:"bug603918.webm", type:"video/webm" },
   { name:"bug604067.webm", type:"video/webm" },
   { name:"bogus.duh", type:"bogus/duh" }
 ];
 // These are files that have nontrivial duration and are useful for seeking within.
 var gSeekTests = [
   { name:"r11025_s16_c1.wav", type:"audio/x-wav", duration:1.0 },
   { name:"audio.wav", type:"audio/x-wav", duration:0.031247 },
   { name:"seek.ogv", type:"video/ogg", duration:3.966 },
   { name:"320x240.ogv", type:"video/ogg", duration:0.266 },
   { name:"seek.webm", type:"video/webm", duration:3.966 },
   { name:"bug516323.indexed.ogv", type:"video/ogg", duration:4.208333 },
   { name:"split.webm", type:"video/webm", duration:1.967 },
   { name:"detodos.opus", type:"audio/ogg; codecs=opus", duration:2.9135 },
   { name:"gizmo.mp4", type:"video/mp4", duration:5.56 },
   { name:"owl.mp3", type:"audio/mpeg", duration:3.29 },
   { name:"bogus.duh", type:"bogus/duh", duration:123 }
 ];
 var gFastSeekTests = [
   { name:"gizmo.mp4", type:"video/mp4", keyframes:[0, 1.0, 2.0, 3.0, 4.0, 5.0 ] },
   // Note: Not all keyframes in the file are actually referenced in the Cues in this file.
   { name:"seek.webm", type:"video/webm", keyframes:[0, 0.8, 1.6, 2.4, 3.2]},
   // Note: the sync points are the points on both the audio and video streams
   // before the keyframes. You can't just assume that the keyframes are the sync
   // points, as the audio required for that sync point may be before the keyframe.
   { name:"bug516323.indexed.ogv", type:"video/ogg", keyframes:[0, 0.46, 3.06] },
 ];
 function IsWindows8OrLater() {
   var re = /Windows NT (\d.\d)/;
   var winver = navigator.userAgent.match(re);
   return winver && winver.length == 2 && parseFloat(winver[1]) >= 6.2;
 }
 // These are files that are non seekable, due to problems with the media,
 // for example broken or missing indexes.
 var gUnseekableTests = [
   { name:"no-cues.webm", type:"video/webm" },
   { name:"bogus.duh", type:"bogus/duh"}
 ];
 // Unfortunately big-buck-bunny-unseekable.mp4 is doesn't play on Windows 7, so
 // only include it in the unseekable tests if we're on later versions of Windows.
 // This test actually only passes on win8 at the moment.
 if (navigator.userAgent.indexOf("Windows") != -1 && IsWindows8OrLater()) {
   gUnseekableTests = gUnseekableTests.concat([
     { name:"big-buck-bunny-unseekable.mp4", type:"video/mp4" }
   ]);
 }
 // Android supports fragmented MP4 playback from 4.3.
 var androidVersion = SpecialPowers.Cc['@mozilla.org/system-info;1']
                                   .getService(SpecialPowers.Ci.nsIPropertyBag2)
                                   .getProperty('version');
 // Fragmented MP4.
 if (navigator.userAgent.indexOf("Mobile") != -1 && androidVersion >= 18) {
   gUnseekableTests = gUnseekableTests.concat([
     { name:"street.mp4", type:"video/mp4" }
   ]);
 }
 // These are files suitable for using with a "new Audio" constructor.
 var gAudioTests = [
   { name:"r11025_s16_c1.wav", type:"audio/x-wav", duration:1.0 },
   { name:"sound.ogg", type:"audio/ogg" },
   { name:"owl.mp3", type:"audio/mpeg", duration:3.29 },
   { name:"small-shot.m4a", type:"audio/mp4", duration:0.29 },
   { name:"bogus.duh", type:"bogus/duh", duration:123 }
 ];
 // These files ensure our handling of 404 errors is consistent across the
 // various backends.
 var g404Tests = [
   { name:"404.wav", type:"audio/x-wav" },
   { name:"404.ogv", type:"video/ogg" },
   { name:"404.oga", type:"audio/ogg" },
   { name:"404.webm", type:"video/webm" },
   { name:"bogus.duh", type:"bogus/duh" }
 ];
 // These are files suitable for testing various decoder failures that are
 // expected to fire MEDIA_ERR_DECODE.  Used by test_decode_error, which expects
 // an error and emptied event, and no loadedmetadata or ended event.
 var gDecodeErrorTests = [
   // Valid files with unsupported codecs
   { name:"r11025_msadpcm_c1.wav", type:"audio/x-wav" },
   { name:"dirac.ogg", type:"video/ogg" },
   // Invalid files
   { name:"bogus.wav", type:"audio/x-wav" },
   { name:"bogus.ogv", type:"video/ogg" },
   { name:"bogus.duh", type:"bogus/duh" }
 ];
 // These are files that are used for media fragments tests
 var gFragmentTests = [
   { name:"big.wav", type:"audio/x-wav", duration:9.278981, size:102444 }
 ];
 // Used by test_chaining.html. The |links| attributes is the number of links in
 // this file that we should be able to play.
 var gChainingTests = [
   // Vorbis and Opus chained file. They have user comments |index=n| where `n`
   // is the index of this segment in the file, 0 indexed.
   { name:"chain.ogg", type:"audio/ogg", links: 4},
   { name:"chain.opus", type:"audio/ogg; codec=opus", links: 4},
   // Those files are chained files with a different number of channels in each
   // part. This is not supported and should stop playing after the first part.
   { name:"variable-channel.ogg", type:"audio/ogg", links: 1 },
   { name:"variable-channel.opus", type:"audio/ogg; codec=opus", links: 1 },
   // Those files are chained files with a different sample rate in each
   // part. This is not supported and should stop playing after the first part.
   { name:"variable-samplerate.ogg", type:"audio/ogg", links: 1 },
   // Opus decoding in Firefox outputs 48 kHz PCM despite having a different
   // original sample rate, so we can safely play Opus chained media that have
   // different samplerate accross links.
   { name:"variable-samplerate.opus", type:"audio/ogg; codec=opus", links: 2 },
   // A chained video file. We don't support those, so only one link should be
   // reported.
   { name:"chained-video.ogv", type:"video/ogg", links: 1 },
   // A file that consist in 4 links of audio, then another link that has video.
   // We should stop right after the 4 audio links.
   { name:"chained-audio-video.ogg", type:"video/ogg", links: 4 },
   // An opus file that has two links, with a different preskip value for each
   // link. We should be able to play both links.
   { name:"variable-preskip.opus", type:"audio/ogg; codec=opus", links: 2 },
   { name:"bogus.duh", type:"bogus/duh" }
 ];
 // Videos with an aspect ratio. Used for testing that displaying frames
 // on a canvas works correctly in the case of non-standard aspect ratios.
 // See bug 874897 for an example.
 var gAspectRatioTests = [
   { name:"VID_0001.ogg", type:"video/ogg", duration:19.966 }
 ];
 // These are files with non-trivial tag sets.
 // Used by test_metadata.html.
 var gMetadataTests = [
   // Ogg Vorbis files
   { name:"short-video.ogv", tags: {
       TITLE:"Lepidoptera",
       ARTIST:"Epoq",
       ALBUM:"Kahvi Collective",
       DATE:"2002",
       COMMENT:"http://www.kahvi.org",
     }
   },
   { name:"bug516323.ogv", tags: {
       GENRE:"Open Movie",
       ENCODER:"Audacity",
       TITLE:"Elephants Dream",
       ARTIST:"Silvia Pfeiffer",
       COMMENTS:"Audio Description"
     }
   },
   { name:"bug516323.indexed.ogv", tags: {
       GENRE:"Open Movie",
       ENCODER:"Audacity",
       TITLE:"Elephants Dream",
       ARTIST:"Silvia Pfeiffer",
       COMMENTS:"Audio Description"
     }
   },
   { name:"detodos.opus", tags: {
       title:"De todos. Para todos.",
       artist:"Mozilla.org"
     }
   },
   { name:"sound.ogg", tags: { } },
   { name:"small-shot.ogg", tags: {
       title:"Pew SFX"
     }
   },
   { name:"badtags.ogg", tags: {
       // We list only the valid tags here, and verify
       // the invalid ones are filtered out.
       title:"Invalid comments test file",
       empty:"",
       "":"empty",
       "{- [(`!@\"#$%^&')] -}":"valid tag name, surprisingly"
       // The file also includes the following invalid tags.
       // "A description with no separator is a common problem.",
       // "雨":"Likely, but an invalid key (non-ascii).",
       // "not\nval\x1fid":"invalid tag name",
       // "not~valid":"this isn't a valid name either",
       // "not-utf-8":"invalid sequences: \xff\xfe\xfa\xfb\0eol"
     }
   },
   { name:"wave_metadata.wav", tags: {
       name:"Track Title",
       artist:"Artist Name",
       comments:"Comments",
     }
   },
   { name:"wave_metadata_utf8.wav", tags: {
       name:"歌曲名稱",
       artist:"作曲者",
       comments:"註解",
     }
   },
   { name:"wave_metadata_unknown_tag.wav", tags: {
       name:"Track Title",
       comments:"Comments",
     }
   },
   { name:"wave_metadata_bad_len.wav", tags: {
       name:"Track Title",
       artist:"Artist Name",
     }
   },
   { name:"wave_metadata_bad_no_null.wav", tags: {
       name:"Track Title",
       artist:"Artist Name",
       comments:"Comments!!",
     }
   },
   { name:"wave_metadata_bad_utf8.wav", tags: {
       name:"歌曲名稱",
       comments:"註解",
     }
   },
   { name:"wavedata_u8.wav", tags: { }
   },
 ];
 function checkMetadata(msg, e, test) {
   if (test.width) {
     is(e.videoWidth, test.width, msg + " video width");
   }
   if (test.height) {
     is(e.videoHeight, test.height, msg + " video height");
   }
   if (test.duration) {
     ok(Math.abs(e.duration - test.duration) < 0.1,
        msg + " duration (" + e.duration + ") should be around " + test.duration);
   }
 }
 // Returns the first test from candidates array which we can play with the
 // installed video backends.
 function getPlayableVideo(candidates) {
   var v = document.createElement("video");
   var resources = candidates.filter(function(x){return /^video/.test(x.type) && v.canPlayType(x.type);});
   if (resources.length > 0)
     return resources[0];
   return null;
 }
 function getPlayableAudio(candidates) {
   var v = document.createElement("audio");
   var resources = candidates.filter(function(x){return /^audio/.test(x.type) && v.canPlayType(x.type);});
   if (resources.length > 0)
     return resources[0];
   return null;
 }
 // Returns the type of element that should be created for the given mimetype.
 function getMajorMimeType(mimetype) {
   if (/^video/.test(mimetype)) {
     return "video";
   } else {
     return "audio";
   }
 }
 function removeNodeAndSource(n) {
   n.remove();
   // force release of underlying decoder
   n.src = "";
   while (n.firstChild) {
     n.removeChild(n.firstChild);
   }
 }
 // Number of tests to run in parallel. Warning: Each media element requires
 // at least 3 threads (4 on Linux), and on Linux each thread uses 10MB of
 // virtual address space. Beware!
 var PARALLEL_TESTS = 2;
 // When true, we'll loop forever on whatever test we run. Use this to debug
 // intermittent test failures.
 const DEBUG_TEST_LOOP_FOREVER = false;
 // Manages a run of media tests. Runs them in chunks in order to limit
 // the number of media elements/threads running in parallel. This limits peak
 // memory use, particularly on Linux x86 where thread stacks use 10MB of
 // virtual address space.
 // Usage:
 //   1. Create a new MediaTestManager object.
 //   2. Create a test startTest function. This takes a test object and a token,
 //      and performs anything necessary to start the test. The test object is an
 //      element in one of the g*Tests above. Your startTest function must call
 //      MediaTestManager.start(token) if it starts a test. The test object is
 //      guaranteed to be playable by our supported decoders; you don't need to
 //      check canPlayType.
 //   3. When your tests finishes, call MediaTestManager.finished(), passing
 //      the token back to the manager. The manager may either start the next run
 //      or end the mochitest if all the tests are done.
 function MediaTestManager() {
   // Sets up a MediaTestManager to runs through the 'tests' array, which needs
   // to be one of, or have the same fields as, the g*Test arrays of tests. Uses
   // the user supplied 'startTest' function to initialize the test. This
   // function must accept two arguments, the test entry from the 'tests' array,
   // and a token. Call MediaTestManager.started(token) if you start the test,
   // and MediaTestManager.finished(token) when the test finishes. You don't have
   // to start every test, but if you call started() you *must* call finish()
   // else you'll timeout.
   this.runTests = function(tests, startTest) {
     this.startTime = new Date();
     SimpleTest.info("Started " + this.startTime + " (" + this.startTime.getTime()/1000 + "s)");
     this.testNum = 0;
     this.tests = tests;
     this.startTest = startTest;
     this.tokens = [];
     this.isShutdown = false;
     this.numTestsRunning = 0;
     // Always wait for explicit finish.
     SimpleTest.waitForExplicitFinish();
     this.nextTest();
   }
   // Registers that the test corresponding to 'token' has been started.
   // Don't call more than once per token.
   this.started = function(token) {
     this.tokens.push(token);
     this.numTestsRunning++;
     is(this.numTestsRunning, this.tokens.length, "[started " + token + "] Length of array should match number of running tests");
   }
   // Registers that the test corresponding to 'token' has finished. Call when
   // you've finished your test. If all tests are complete this will finish the
   // run, otherwise it may start up the next run. It's ok to call multiple times
   // per token.
   this.finished = function(token) {
     var i = this.tokens.indexOf(token);
     if (i != -1) {
       // Remove the element from the list of running tests.
       this.tokens.splice(i, 1);
     }
     this.numTestsRunning--;
     is(this.numTestsRunning, this.tokens.length, "[finished " + token + "] Length of array should match number of running tests");
     if (this.tokens.length < PARALLEL_TESTS) {
       this.nextTest();
     }
   }
   // Starts the next batch of tests, or finishes if they're all done.
   // Don't call this directly, call finished(token) when you're done.
   this.nextTest = function() {
     // Force an exact  GC after every completed testcase. This ensures that any
     // decoders with live threads waiting for the GC are killed promptly, to free
     // up the thread stacks' address space, and destroy decoder resources.
     SpecialPowers.exactGC(window, function(){
       while (this.testNum < this.tests.length && this.tokens.length < PARALLEL_TESTS) {
         var test = this.tests[this.testNum];
         var token = (test.name ? (test.name + "-"): "") + this.testNum;
         this.testNum++;
         if (DEBUG_TEST_LOOP_FOREVER && this.testNum == this.tests.length) {
           this.testNum = 0;
         }
         // Ensure we can play the resource type.
         if (test.type && !document.createElement('video').canPlayType(test.type))
           continue;
         // Do the init. This should start the test.
         this.startTest(test, token);
       }
       if (this.testNum == this.tests.length &&
           !DEBUG_TEST_LOOP_FOREVER &&
           this.tokens.length == 0 &&
           !this.isShutdown)
       {
         this.isShutdown = true;
         if (this.onFinished) {
           this.onFinished();
         }
         mediaTestCleanup();
         var end = new Date();
         SimpleTest.info("Finished at " + end + " (" + (end.getTime() / 1000) + "s)");
         SimpleTest.info("Running time: " + (end.getTime() - this.startTime.getTime())/1000 + "s");
         SimpleTest.finish();
         return;
       }
     }.bind(this));
   }
 }
 // Ensures we've got no active video or audio elements in the document, and
 // forces a GC to release the address space reserved by the decoders' threads'
 // stacks.
 function mediaTestCleanup() {
     var V = document.getElementsByTagName("video");
     for (i=0; i<V.length; i++) {
       removeNodeAndSource(V[i]);
       V[i] = null;
     }
     var A = document.getElementsByTagName("audio");
     for (i=0; i<A.length; i++) {
       removeNodeAndSource(A[i]);
       A[i] = null;
     }
     SpecialPowers.forceGC();
 }
 (function() {
   // Ensure that preload preferences are comsistent
   var prefService = SpecialPowers.wrap(SpecialPowers.Components)
                                  .classes["@mozilla.org/preferences-service;1"]
                                  .getService(SpecialPowers.Ci.nsIPrefService);
   var branch = prefService.getBranch("media.");
   var oldDefault = 2;
   var oldAuto = 3;
   var oldAppleMedia = undefined;
   var oldGStreamer = undefined;
   var oldOpus = undefined;
   try { oldAppleMedia = SpecialPowers.getBoolPref("media.apple.mp3.enabled"); } catch(ex) { }
   try { oldGStreamer = SpecialPowers.getBoolPref("media.gstreamer.enabled"); } catch(ex) { }
   try { oldDefault   = SpecialPowers.getIntPref("media.preload.default"); } catch(ex) { }
   try { oldAuto      = SpecialPowers.getIntPref("media.preload.auto"); } catch(ex) { }
   try { oldOpus      = SpecialPowers.getBoolPref("media.opus.enabled"); } catch(ex) { }
   SpecialPowers.setIntPref("media.preload.default", 2); // preload_metadata
   SpecialPowers.setIntPref("media.preload.auto", 3); // preload_enough
   // test opus playback iff the pref exists
   if (oldOpus !== undefined)
     SpecialPowers.setBoolPref("media.opus.enabled", true);
   if (oldGStreamer !== undefined)
     SpecialPowers.setBoolPref("media.gstreamer.enabled", true);
   if (oldAppleMedia !== undefined)
     SpecialPowers.setBoolPref("media.apple.mp3.enabled", true);
   window.addEventListener("unload", function() {
     if (oldGStreamer !== undefined)
       SpecialPowers.setBoolPref("media.gstreamer.enabled", oldGStreamer);
     if (oldAppleMedia !== undefined)
       SpecialPowers.setBoolPref("media.apple.mp3.enabled", oldAppleMedia);
     SpecialPowers.setIntPref("media.preload.default", oldDefault);
     SpecialPowers.setIntPref("media.preload.auto", oldAuto);
     if (oldOpus !== undefined)
       SpecialPowers.setBoolPref("media.opus.enabled", oldOpus);
   }, false);
  })();