LCOV - code coverage report
Current view: top level - dom/media/webm - WebMDecoder.cpp (source / functions) Hit Total Coverage
Test: output.info Lines: 0 30 0.0 %
Date: 2017-07-14 16:53:18 Functions: 0 5 0.0 %
Legend: Lines: hit not hit

          Line data    Source code
       1             : /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
       2             : /* vim:set ts=2 sw=2 sts=2 et cindent: */
       3             : /* This Source Code Form is subject to the terms of the Mozilla Public
       4             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       5             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
       6             : 
       7             : #include "mozilla/Preferences.h"
       8             : #ifdef MOZ_AV1
       9             : #include "AOMDecoder.h"
      10             : #endif
      11             : #include "MediaContainerType.h"
      12             : #include "MediaDecoderStateMachine.h"
      13             : #include "WebMDemuxer.h"
      14             : #include "WebMDecoder.h"
      15             : #include "VideoUtils.h"
      16             : 
      17             : namespace mozilla {
      18             : 
      19           0 : MediaDecoderStateMachine* WebMDecoder::CreateStateMachine()
      20             : {
      21           0 :   MediaDecoderReaderInit init(this);
      22           0 :   init.mVideoFrameContainer = GetVideoFrameContainer();
      23           0 :   mReader = new MediaFormatReader(init, new WebMDemuxer(mResource));
      24           0 :   return new MediaDecoderStateMachine(this, mReader);
      25             : }
      26             : 
      27             : /* static */
      28             : bool
      29           0 : WebMDecoder::IsSupportedType(const MediaContainerType& aContainerType)
      30             : {
      31           0 :   if (!Preferences::GetBool("media.webm.enabled")) {
      32           0 :     return false;
      33             :   }
      34             : 
      35           0 :   bool isVideo = aContainerType.Type() == MEDIAMIMETYPE("video/webm");
      36           0 :   if (aContainerType.Type() != MEDIAMIMETYPE("audio/webm") && !isVideo) {
      37           0 :     return false;
      38             :   }
      39             : 
      40           0 :   const MediaCodecs& codecs = aContainerType.ExtendedType().Codecs();
      41           0 :   if (codecs.IsEmpty()) {
      42             :     // WebM guarantees that the only codecs it contained are vp8, vp9, opus or vorbis.
      43           0 :     return true;
      44             :   }
      45             :   // Verify that all the codecs specified are ones that we expect that
      46             :   // we can play.
      47           0 :   for (const auto& codec : codecs.Range()) {
      48           0 :     if (codec.EqualsLiteral("opus") || codec.EqualsLiteral("vorbis")) {
      49           0 :       continue;
      50             :     }
      51             :     // Note: Only accept VP8/VP9 in a video container type, not in an audio
      52             :     // container type.
      53           0 :     if (isVideo &&
      54           0 :         (codec.EqualsLiteral("vp8") || codec.EqualsLiteral("vp8.0") ||
      55           0 :          codec.EqualsLiteral("vp9") || codec.EqualsLiteral("vp9.0"))) {
      56           0 :       continue;
      57             :     }
      58             : #ifdef MOZ_AV1
      59           0 :     if (isVideo && AOMDecoder::IsSupportedCodec(codec)) {
      60           0 :       continue;
      61             :     }
      62             : #endif
      63             :     // Some unsupported codec.
      64           0 :     return false;
      65             :   }
      66           0 :   return true;
      67             : }
      68             : 
      69             : void
      70           0 : WebMDecoder::GetMozDebugReaderData(nsACString& aString)
      71             : {
      72             :   // This is definitely a MediaFormatReader. See CreateStateMachine() above.
      73           0 :   auto reader = static_cast<MediaFormatReader*>(mReader.get());
      74           0 :   if (reader) {
      75           0 :     reader->GetMozDebugReaderData(aString);
      76             :   }
      77           0 : }
      78             : 
      79             : } // namespace mozilla
      80             : 

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