ffmpeg reset bitstream converters on Seek

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 95 matching lines @@
 
   // Returns the total buffer size FFMpegDemuxerStream is holding onto.
   size_t MemoryUsage() const;
 
   TextKind GetTextKind() const;
 
   // Returns the value associated with |key| in the metadata for the avstream.
   // Returns an empty string if the key is not present.
   std::string GetMetadata(const char* key) const;
 
+  // Resets any currently active bitstream converters.
+  void ResetBitstreamConverter();
+
  private:
   friend class FFmpegDemuxerTest;
 
   // Runs |read_cb_| if present with the front of |buffer_queue_|, calling
   // NotifyCapacityAvailable() if capacity is still available.
   void SatisfyPendingRead();
 
   // Converts an FFmpeg stream timestamp into a base::TimeDelta.
   static base::TimeDelta ConvertStreamTimestamp(const AVRational& time_base,
                                                 int64 timestamp);
@@ skipping 171 matching lines @@
 
   // NOTE: Weak pointers must be invalidated before all other member variables.
   base::WeakPtrFactory<FFmpegDemuxer> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(FFmpegDemuxer);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_FILTERS_FFMPEG_DEMUXER_H_