MSE: Experimental support for new abort and duration behavior

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 <stddef.h>
 #include <stdint.h>
 
@@ skipping 57 matching lines @@
   // Returns false iff buffer is still full after running eviction.
   // https://w3c.github.io/media-source/#sourcebuffer-coded-frame-eviction
   bool EvictCodedFrames(DecodeTimestamp media_time, size_t newDataSize);
 
   // Signal to the stream that duration has changed to |duration|.
   void OnSetDuration(base::TimeDelta duration);
 
   // Returns the range of buffered data in this stream, capped at |duration|.
   Ranges<base::TimeDelta> GetBufferedRanges(base::TimeDelta duration) const;
 
+  // Returns the highest PTS of the buffered data.
+  // Returns base::TimeDelta() if the stream has no buffered data.
+  base::TimeDelta GetHighestPresentationTimestamp() const;
+
   // Returns the duration of the buffered data.
   // Returns base::TimeDelta() if the stream has no buffered data.
   base::TimeDelta GetBufferedDuration() const;
 
   // Returns the size of the buffered data in bytes.
   size_t GetBufferedSize() const;
 
   // Signal to the stream that buffers handed in through subsequent calls to
   // Append() belong to a coded frame group that starts at |start_timestamp|.
   void OnStartOfCodedFrameGroup(DecodeTimestamp start_timestamp);
@@ skipping 127 matching lines @@
   void SetTracksWatcher(const std::string& id,
                         const MediaTracksUpdatedCB& tracks_updated_cb);
 
   // Removed an ID & associated resources that were previously added with
   // AddId().
   void RemoveId(const std::string& id);
 
   // Gets the currently buffered ranges for the specified ID.
   Ranges<base::TimeDelta> GetBufferedRanges(const std::string& id) const;
 
+  // Gets the highest buffered PTS for the specified |id|. If there is nothing
+  // buffered, returns base::TimeDelta().
+  base::TimeDelta GetHighestPresentationTimestamp(const std::string& id) const;
+
   // Appends media data to the source buffer associated with |id|, applying
   // and possibly updating |*timestamp_offset| during coded frame processing.
   // |append_window_start| and |append_window_end| correspond to the MSE spec's
   // similarly named source buffer attributes that are used in coded frame
   // processing. Returns true on success, false if the caller needs to run the
   // append error algorithm with decode error parameter set to true.
   bool AppendData(const std::string& id,
                   const uint8_t* data,
                   size_t length,
                   base::TimeDelta append_window_start,
@@ skipping 189 matching lines @@
   int detected_audio_track_count_;
   int detected_video_track_count_;
   int detected_text_track_count_;
 
   DISALLOW_COPY_AND_ASSIGN(ChunkDemuxer);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_FILTERS_CHUNK_DEMUXER_H_