MSE: Experimental support for new abort and duration behavior

media/filters/source_buffer_stream.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.
 
 // SourceBufferStream is a data structure that stores media Buffers in ranges.
 // Buffers can be appended out of presentation order. Buffers are retrieved by
 // seeking to the desired start point and calling GetNextBuffer(). Buffers are
 // returned in sequential presentation order.
 
 #ifndef MEDIA_FILTERS_SOURCE_BUFFER_STREAM_H_
@@ skipping 104 matching lines @@
   // |out_buffer|'s timestamp may be earlier than the |timestamp| passed to
   // the last Seek() call.
   // Returns kSuccess if |out_buffer| is filled with a valid buffer, kNeedBuffer
   // if there is not enough data buffered to fulfill the request, and
   // kConfigChange if the next buffer requires a config change.
   Status GetNextBuffer(scoped_refptr<StreamParserBuffer>* out_buffer);
 
   // Returns a list of the buffered time ranges.
   Ranges<base::TimeDelta> GetBufferedTime() const;
 
+  // Returns the highest buffered PTS or base::TimeDelta() if nothing is
+  // buffered.
+  base::TimeDelta GetHighestPresentationTimestamp() const;
+
   // Returns the duration of the buffered ranges, which is equivalent
   // to the end timestamp of the last buffered range. If no data is buffered
   // then base::TimeDelta() is returned.
   base::TimeDelta GetBufferedDuration() const;
 
   // Returns the size of the buffered data in bytes.
   size_t GetBufferedSize() const;
 
   // Notifies this object that end of stream has been signalled.
   void MarkEndOfStream();
@@ skipping 321 matching lines @@
   int num_track_buffer_gap_warning_logs_ = 0;
   int num_garbage_collect_algorithm_logs_ = 0;
   int num_strange_same_timestamps_logs_ = 0;
 
   DISALLOW_COPY_AND_ASSIGN(SourceBufferStream);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_FILTERS_SOURCE_BUFFER_STREAM_H_