media: Add support for playback of VP8 Alpha video streams

media/ffmpeg/ffmpeg_common.h

 // 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.
 
 #ifndef MEDIA_FFMPEG_FFMPEG_COMMON_H_
 #define MEDIA_FFMPEG_FFMPEG_COMMON_H_
 
 // Used for FFmpeg error codes.
 #include <cerrno>
 
@@ skipping 11 matching lines @@
 // TODO(scherkus): fix and upstream the compiler warnings.
 MSVC_PUSH_DISABLE_WARNING(4244);
 #include <libavcodec/avcodec.h>
 #include <libavformat/avformat.h>
 #include <libavformat/avio.h>
 #include <libavutil/audioconvert.h>
 #include <libavutil/avutil.h>
 #include <libavutil/mathematics.h>
 #include <libavutil/log.h>
 #include <libavutil/imgutils.h>
+#include <libavcodec/avcodec.h>

[Tom Finegan, 2013/02/25 22:56:06]

You already have this on line 24, remove.

[vignesh, 2013/02/25 23:33:14]

Done.

 MSVC_POP_WARNING();
 }  // extern "C"
 
 namespace media {
 
 class AudioDecoderConfig;
 class VideoDecoderConfig;
 
 // Wraps FFmpeg's av_free() in a class that can be passed as a template argument
 // to scoped_ptr_malloc.
@@ skipping 58 matching lines @@
 
 // Converts an FFmpeg video codec ID into its corresponding supported codec id.
 VideoCodec CodecIDToVideoCodec(CodecID codec_id);
 
 // Converts an FFmpeg audio codec ID into its corresponding supported codec id.
 AudioCodec CodecIDToAudioCodec(CodecID codec_id);
 
 }  // namespace media
 
 #endif  // MEDIA_FFMPEG_FFMPEG_COMMON_H_