Use of the playback time in the MSE garbage collection.

media/filters/chunk_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.
 
 #ifndef MEDIA_FILTERS_CHUNK_DEMUXER_H_
 #define MEDIA_FILTERS_CHUNK_DEMUXER_H_
 
 #include <deque>
 #include <map>
 #include <string>
@@ skipping 71 matching lines @@
 
   // DemuxerStream methods.
   void Read(const ReadCB& read_cb) override;
   Type type() const override;
   Liveness liveness() const override;
   AudioDecoderConfig audio_decoder_config() override;
   VideoDecoderConfig video_decoder_config() override;
   bool SupportsConfigChanges() override;
   VideoRotation video_rotation() override;
 
+  // Update the media time used by the MSE garbage collection algorithm.
+  void NotifyMediaTimeUpdate(DecodeTimestamp time);
+
   // Returns the text track configuration.  It is an error to call this method
   // if type() != TEXT.
   TextTrackConfig text_track_config();
 
   // Sets the memory limit, in bytes, on the SourceBufferStream.
   void set_memory_limit(int memory_limit) {
     stream_->set_memory_limit(memory_limit);
   }
 
   bool supports_partial_append_window_trimming() const {
@@ skipping 54 matching lines @@
   // |splice_frames_enabled| Indicates that it's okay to generate splice frames
   //   per the MSE specification.  Renderers must understand DecoderBuffer's
   //   splice_timestamp() field.
   ChunkDemuxer(const base::Closure& open_cb,
                const EncryptedMediaInitDataCB& encrypted_media_init_data_cb,
                const LogCB& log_cb,
                const scoped_refptr<MediaLog>& media_log,
                bool splice_frames_enabled);
   ~ChunkDemuxer() override;
 
+  // Set the media time provider.
+  // TODO(damienv): should truly be part of the constructor.
+  void SetMediaTimeProvider(
+      const base::Callback<base::TimeDelta(void)>& get_media_time_cb);
+
   // Demuxer implementation.
   void Initialize(DemuxerHost* host,
                   const PipelineStatusCB& cb,
                   bool enable_text_tracks) override;
   void Stop() override;
   void Seek(base::TimeDelta time, const PipelineStatusCB& cb) override;
   base::Time GetTimelineOffset() const override;
   DemuxerStream* GetStream(DemuxerStream::Type type) override;
   base::TimeDelta GetStartTime() const override;
 
@@ skipping 193 matching lines @@
   PipelineStatusCB init_cb_;
   // Callback to execute upon seek completion.
   // TODO(wolenetz/acolwell): Protect against possible double-locking by first
   // releasing |lock_| before executing this callback. See
   // http://crbug.com/308226
   PipelineStatusCB seek_cb_;
 
   scoped_ptr<ChunkDemuxerStream> audio_;
   scoped_ptr<ChunkDemuxerStream> video_;
 
+  base::Callback<base::TimeDelta(void)> get_media_time_cb_;
+
   base::TimeDelta duration_;
 
   // The duration passed to the last SetDuration(). If
   // SetDuration() is never called or an AppendData() call or
   // a EndOfStream() call changes |duration_|, then this
   // variable is set to < 0 to indicate that the |duration_| represents
   // the actual duration instead of a user specified value.
   double user_specified_duration_;
 
   base::Time timeline_offset_;
@@ skipping 10 matching lines @@
 
   // Indicates that splice frame generation is enabled.
   const bool splice_frames_enabled_;
 
   DISALLOW_COPY_AND_ASSIGN(ChunkDemuxer);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_FILTERS_CHUNK_DEMUXER_H_