Adding VP8 Alpha support in Media Source

media/webm/webm_cluster_parser.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_WEBM_WEBM_CLUSTER_PARSER_H_
 #define MEDIA_WEBM_WEBM_CLUSTER_PARSER_H_
 
 #include <deque>
 #include <map>
 #include <set>
@@ skipping 92 matching lines @@
   bool cluster_ended() const { return cluster_ended_; }
 
  private:
   // WebMParserClient methods.
   virtual WebMParserClient* OnListStart(int id) OVERRIDE;
   virtual bool OnListEnd(int id) OVERRIDE;
   virtual bool OnUInt(int id, int64 val) OVERRIDE;
   virtual bool OnBinary(int id, const uint8* data, int size) OVERRIDE;
 
   bool ParseBlock(bool is_simple_block, const uint8* buf, int size,
-                  int duration);
+                  const uint8* additional, int additional_size, int duration);
   bool OnBlock(bool is_simple_block, int track_num, int timecode, int duration,
-               int flags, const uint8* data, int size);
+               int flags, const uint8* data, int size,
+               const uint8* additional, int additional_size);
 
   // Resets the Track objects associated with each text track.
   void ResetTextTracks();
 
   // Search for the indicated track_num among the text tracks.  Returns NULL
   // if that track num is not a text track.
   Track* FindTextTrack(int track_num);
 
   double timecode_multiplier_;  // Multiplier used to convert timecodes into
                                 // microseconds.
   std::set<int64> ignored_tracks_;
   std::string audio_encryption_key_id_;
   std::string video_encryption_key_id_;
 
   WebMListParser parser_;
 
   int64 last_block_timecode_;
   scoped_ptr<uint8[]> block_data_;
   int block_data_size_;
   int64 block_duration_;
+  int64 block_add_id_;
+  scoped_ptr<uint8[]> block_additional_data_;
+  int block_additional_data_size_;
 
   int64 cluster_timecode_;
   base::TimeDelta cluster_start_time_;
   bool cluster_ended_;
 
   Track audio_;
   Track video_;
   TextTrackMap text_track_map_;
   LogCB log_cb_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(WebMClusterParser);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_WEBM_WEBM_CLUSTER_PARSER_H_