Add libvpx wrapper to media to support VP9 video decoding.

media/filters/chunk_demuxer.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "media/filters/chunk_demuxer.h"
 
 #include <algorithm>
 #include <deque>
 
 #include "base/bind.h"
@@ skipping 22 matching lines @@
 typedef StreamParser* (*ParserFactoryFunction)(
     const std::vector<std::string>& codecs);
 
 struct SupportedTypeInfo {
   const char* type;
   const ParserFactoryFunction factory_function;
   const CodecInfo** codecs;
 };
 
 static const CodecInfo kVP8CodecInfo = { "vp8", DemuxerStream::VIDEO };
+static const CodecInfo kVP9CodecInfo = { "vp9", DemuxerStream::VIDEO };
 static const CodecInfo kVorbisCodecInfo = { "vorbis", DemuxerStream::AUDIO };
 
 static const CodecInfo* kVideoWebMCodecs[] = {
   &kVP8CodecInfo,
+  &kVP9CodecInfo,

[scherkus (not reviewing), 2012/12/18 01:01:56]

if vp9 isn't expected to work with media source, then similar to opus we may
want to back out this changes

[Tom Finegan, 2012/12/18 01:47:42]

Forgot to remove this, done.

   &kVorbisCodecInfo,
   NULL
 };
 
 static const CodecInfo* kAudioWebMCodecs[] = {
   &kVorbisCodecInfo,
   NULL
 };
 
 static StreamParser* BuildWebMParser(const std::vector<std::string>& codecs) {
@@ skipping 1183 matching lines @@
 
 Ranges<TimeDelta> ChunkDemuxer::GetBufferedRanges() const {
   if (audio_ && !video_)
     return audio_->GetBufferedRanges(duration_);
   else if (!audio_ && video_)
     return video_->GetBufferedRanges(duration_);
   return ComputeIntersection();
 }
 
 }  // namespace media