Introducing DecoderBuffer and general Buffer cleanup.

media/filters/ffmpeg_demuxer.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.
 
 // Implements the Demuxer interface using FFmpeg's libavformat.  At this time
 // will support demuxing any audio/video format thrown at it.  The streams
 // output mime types audio/x-ffmpeg and video/x-ffmpeg and include an integer
 // key FFmpegCodecID which contains the CodecID enumeration value.  The CodecIDs
 // can be used to create and initialize the corresponding FFmpeg decoder.
 //
@@ skipping 11 matching lines @@
 #ifndef MEDIA_FILTERS_FFMPEG_DEMUXER_H_
 #define MEDIA_FILTERS_FFMPEG_DEMUXER_H_
 
 #include <deque>
 #include <vector>
 
 #include "base/callback.h"
 #include "base/gtest_prod_util.h"
 #include "base/synchronization/waitable_event.h"
 #include "media/base/audio_decoder_config.h"
-#include "media/base/buffers.h"
+#include "media/base/decoder_buffer.h"
 #include "media/base/demuxer.h"
 #include "media/base/pipeline.h"
 #include "media/base/video_decoder_config.h"
 #include "media/filters/ffmpeg_glue.h"
 
 // FFmpeg forward declarations.
 struct AVFormatContext;
 struct AVPacket;
 struct AVRational;
 struct AVStream;
 
 namespace media {
 
 class BitstreamConverter;
 class FFmpegDemuxer;
 class ScopedPtrAVFreePacket;
 
 class FFmpegDemuxerStream : public DemuxerStream {
  public:
   // Keeps a copy of |demuxer| and initializes itself using information
   // inside |stream|.  Both parameters must outlive |this|.
   FFmpegDemuxerStream(FFmpegDemuxer* demuxer, AVStream* stream);
 
   // Returns true is this stream has pending reads, false otherwise.
   //
   // Safe to call on any thread.
   bool HasPendingReads();
 
-  // Enqueues the given AVPacket.
+  // Enqueues the given AVPacket.  If |packet| is NULL an end of stream packet
+  // is enqueued.
   void EnqueuePacket(scoped_ptr_malloc<AVPacket, ScopedPtrAVFreePacket> packet);
 
   // Signals to empty the buffer queue and mark next packet as discontinuous.
   void FlushBuffers();
 
   // Empties the queues and ignores any additional calls to Read().
   void Stop();
 
   // Returns the duration of this stream.
   base::TimeDelta duration();
@@ skipping 36 matching lines @@
 
   FFmpegDemuxer* demuxer_;
   AVStream* stream_;
   AudioDecoderConfig audio_config_;
   VideoDecoderConfig video_config_;
   Type type_;
   base::TimeDelta duration_;
   bool discontinuous_;
   bool stopped_;
 
-  typedef std::deque<scoped_refptr<Buffer> > BufferQueue;
+  typedef std::deque<scoped_refptr<DecoderBuffer> > BufferQueue;
   BufferQueue buffer_queue_;
 
   typedef std::deque<ReadCB> ReadQueue;
   ReadQueue read_queue_;
 
   // Used to translate bitstream formats.
   scoped_ptr<BitstreamConverter> bitstream_converter_;
 
   // Used to synchronize access to |buffer_queue_|, |read_queue_|, and
   // |stopped_|. This is so other threads can get access to buffers that have
@@ skipping 125 matching lines @@
   // Set if we know duration of the audio stream. Used when processing end of
   // stream -- at this moment we definitely know duration.
   bool duration_known_;
 
   DISALLOW_COPY_AND_ASSIGN(FFmpegDemuxer);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_FILTERS_FFMPEG_DEMUXER_H_