Add support for incremental cluster parsing.

media/filters/chunk_demuxer.h

 // Copyright (c) 2011 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_FILTERS_CHUNK_DEMUXER_H_
 #define MEDIA_FILTERS_CHUNK_DEMUXER_H_
 
 #include <list>
 
 #include "base/synchronization/lock.h"
@@ skipping 63 matching lines @@
 
   // Generates an AVFormatContext for the INFO & TRACKS elements contained
   // in |data|. Returns NULL if parsing |data| fails.
   AVFormatContext* CreateFormatContext(const uint8* data, int size);
 
   // Sets up |audio_| & |video_| DemuxerStreams based on the data in
   // |format_context_|. Returns false if no valid audio or video stream were
   // found.
   bool SetupStreams();
 
-  // Parse a cluster add add the buffers to the appropriate DemxuerStream.
-  // |data| is expected to point to the beginning of a cluster element.
+  // Parse a cluster add add the buffers to the appropriate DemuxerStream.
+  // |data| is expected to point to the beginning of an element.
+  //
+  // |buffers_added| - Indicates whether Buffers were added to DemuxerStreams
+  //   during the call. This is only valid if the return value > 0.
   //
   // Returns -1 if the parse fails.
   // Returns 0 if more data is needed.
   // Returns the number of bytes parsed on success.
-  int ParseCluster_Locked(const uint8* data, int size);
+  int ParseCluster_Locked(const uint8* data, int size, bool* buffers_added);
 
   // Reports an error and puts the demuxer in a state where it won't accept more
   // data.
   void ReportError_Locked(PipelineStatus error);
 
   base::Lock lock_;
   State state_;
 
   ChunkDemuxerClient* client_;
   PipelineStatusCB init_cb_;
@@ skipping 24 matching lines @@
   bool seek_waits_for_data_;
 
   ByteQueue byte_queue_;
 
   DISALLOW_COPY_AND_ASSIGN(ChunkDemuxer);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_FILTERS_CHUNK_DEMUXER_H_