Bug 1016413 - Tests for fmp4 metadata backend. r=rillian

The reporting of metadata with fmp4 backend is tested here with the
file gizmo.metadata.mp4, and some changes are made on test_metadata.html
to integrate tests on mp4 files with restriction to certain platforms.
A 'type' field has also been added to gMetadataTests' elements in
manifest.js in order to correctly test the type with canPlayType method
for instance.

content/media/test/manifest.js

@@ -486,7 +486,9 @@ var gAspectRatioTests = [
 // Used by test_metadata.html.
 var gMetadataTests = [
   // Ogg Vorbis files
-  { name:"short-video.ogv", tags: {
+  { name:"short-video.ogv",
+    type:"video/ogg",
+    tags: {
       TITLE:"Lepidoptera",
       ARTIST:"Epoq",
       ALBUM:"Kahvi Collective",
@@ -494,7 +496,9 @@ var gMetadataTests = [
       COMMENT:"http://www.kahvi.org",
     }
   },
-  { name:"bug516323.ogv", tags: {
+  { name:"bug516323.ogv",
+    type:"video/ogg",
+    tags: {
       GENRE:"Open Movie",
       ENCODER:"Audacity",
       TITLE:"Elephants Dream",
@@ -502,7 +506,9 @@ var gMetadataTests = [
       COMMENTS:"Audio Description"
     }
   },
-  { name:"bug516323.indexed.ogv", tags: {
+  { name:"bug516323.indexed.ogv",
+    type:"video/ogg",
+    tags: {
       GENRE:"Open Movie",
       ENCODER:"Audacity",
       TITLE:"Elephants Dream",
@@ -510,17 +516,26 @@ var gMetadataTests = [
       COMMENTS:"Audio Description"
     }
   },
-  { name:"detodos.opus", tags: {
+  { name:"detodos.opus",
+    type:"audio/ogg; codecs=opus",
+    tags: {
       title:"De todos. Para todos.",
       artist:"Mozilla.org"
     }
   },
-  { name:"sound.ogg", tags: { } },
-  { name:"small-shot.ogg", tags: {
+  { name:"sound.ogg",
+    type:"audio/ogg",
+    tags: { }
+  },
+  { name:"small-shot.ogg",
+    type:"video/ogg",
+    tags: {
       title:"Pew SFX"
     }
   },
-  { name:"badtags.ogg", tags: {
+  { name:"badtags.ogg",
+    type:"audio/ogg",
+    tags: {
       // We list only the valid tags here, and verify
       // the invalid ones are filtered out.
       title:"Invalid comments test file",
@@ -535,41 +550,70 @@ var gMetadataTests = [
       // "not-utf-8":"invalid sequences: \xff\xfe\xfa\xfb\0eol"
     }
   },
-  { name:"wave_metadata.wav", tags: {
+  { name:"wave_metadata.wav",
+    type:"audio/x-wav",
+    tags: {
       name:"Track Title",
       artist:"Artist Name",
       comments:"Comments",
     }
   },
-  { name:"wave_metadata_utf8.wav", tags: {
+  { name:"wave_metadata_utf8.wav",
+    type:"audio/x-wav",
+    tags: {
       name:"歌曲名稱",
       artist:"作曲者",
       comments:"註解",
     }
   },
-  { name:"wave_metadata_unknown_tag.wav", tags: {
+  { name:"wave_metadata_unknown_tag.wav",
+    type:"audio/x-wav",
+    tags: {
       name:"Track Title",
       comments:"Comments",
     }
   },
-  { name:"wave_metadata_bad_len.wav", tags: {
+  { name:"wave_metadata_bad_len.wav",
+    type:"audio/x-wav",
+    tags: {
       name:"Track Title",
       artist:"Artist Name",
     }
   },
-  { name:"wave_metadata_bad_no_null.wav", tags: {
+  { name:"wave_metadata_bad_no_null.wav",
+    type:"audio/x-wav",
+    tags: {
       name:"Track Title",
       artist:"Artist Name",
       comments:"Comments!!",
     }
   },
-  { name:"wave_metadata_bad_utf8.wav", tags: {
+  { name:"wave_metadata_bad_utf8.wav",
+    type:"audio/x-wav",
+    tags: {
       name:"歌曲名稱",
       comments:"註解",
     }
   },
-  { name:"wavedata_u8.wav", tags: { }
+  { name:"wavedata_u8.wav",
+    type:"audio/x-wav",
+    tags: { }
   },
+  { name:"gizmo.metadata.mp4",
+    type:"video/mp4",
+    tags: {
+      artist:"Artist name",
+      title:"Title name",
+      album:"Album name",
+      albumArtist:"Album Artist name",
+      genre:"Genre name",
+      date:"20140326T002053.000Z",
+      year:"2014",
+      writer:"Composer name",
+      discNumber:"1/0",
+      cdTrackNumber:"1/0"
+    }
+  }
 ];
 
 function checkMetadata(msg, e, test) {

content/media/test/mochitest.ini

@@ -144,6 +144,7 @@ support-files =
   file_access_controls.html
   fragment_noplay.js
   fragment_play.js
+  gizmo.metadata.mp4
   gizmo.mp4
   gizmo.mp4^headers^
   huge-id3.mp3

content/media/test/test_metadata.html

@@ -13,30 +13,34 @@
 <script class="testbody" type="text/javascript">
 
 var manager = new MediaTestManager;
+SimpleTest.waitForExplicitFinish();
+SpecialPowers.pushPrefEnv({
+        'set': [
+        ["media.fragmented-mp4.ffmpeg.enabled", true],
+        ["media.fragmented-mp4.exposed", true]
+        ]
+}, beginTest);
 
-function startTest(test, token) {
-  var a = document.createElement('audio');
-  a.preload = "auto";
-  a.token = token;
-  manager.started(token);
+function isMP4(value) {
+  return value === "mp4" || value === "x-m4a";
+}
 
-  a.src = test.name;
-  a.name = test.name;
+// Returns true if mp4 metadata reporting shall not be tested on the current platform
+function MP4isNotTested() {
+  return !(
+  navigator.userAgent.indexOf("Linux") != -1 || // Linux
+  navigator.userAgent.indexOf("Windows NT 6.1") != -1 || // Windows 7
+  navigator.userAgent.indexOf("Windows NT 6.2") != -1 // Windows 8
+  );
+}
 
-  // Tags should not be available immediately.
-  var exception_fired = false;
-  try {
-    var m = a.mozGetMetadata();
-  } catch (e) {
-    is(e.name, 'InvalidStateError',
-       "early mozGetMetadata() should throw InvalidStateError");
-    exception_fired = true;
-  }
-  ok(exception_fired,
-     "mozGetMetadata() should throw an exception before HAVE_METADATA");
+function beginTest() {
+  manager.runTests(gMetadataTests, startTest);
+}
 
-  // Wait until metadata has loaded.
-  a.addEventListener('loadedmetadata', function() {
+function checkTags(event) {
+    var a = event.target;
+    var test = a.value;
     // read decoded tags
     tags = a.mozGetMetadata();
     ok(tags, "mozGetMetadata() should return a truthy value");
@@ -68,11 +72,41 @@ function startTest(test, token) {
     for (tag in test.tags) {
       is(tags[tag], test.tags[tag], "Tag '"+tag+"' should match");
     }
-    manager.finished(token);
-  }, false);
+    manager.finished(a.token);
+
 }
 
-manager.runTests(gMetadataTests, startTest);
+function startTest(test, token) {
+
+  // Tests on MP4 are restricted to certain platforms
+  var format = test.type.split('/')[1];
+  if (isMP4(format) && MP4isNotTested()) {
+    return;
+  }
+
+  var a = document.createElement(getMajorMimeType(test.type));
+  a.preload = "auto";
+  a.token = token;
+  manager.started(token);
+  a.src = test.name;
+  a.name = test.name;
+  a.value = test;
+
+  // Tags should not be available immediately.
+  var exception_fired = false;
+  try {
+    var m = a.mozGetMetadata();
+  } catch (e) {
+    is(e.name, 'InvalidStateError',
+       "early mozGetMetadata() should throw InvalidStateError");
+    exception_fired = true;
+  }
+  ok(exception_fired,
+     "mozGetMetadata() should throw an exception before HAVE_METADATA");
+
+  // Wait until metadata has loaded.
+  a.addEventListener('loadedmetadata', checkTags, false);
+}
 
 </script>
 </pre>