MSE: Experimental support for new abort and duration behavior

media/filters/source_buffer_stream.cc

 // 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.
 
 #include "media/filters/source_buffer_stream.h"
 
 #include <algorithm>
 #include <map>
 #include <sstream>
 
@@ skipping 1383 matching lines @@
 Ranges<base::TimeDelta> SourceBufferStream::GetBufferedTime() const {
   Ranges<base::TimeDelta> ranges;
   for (RangeList::const_iterator itr = ranges_.begin();
        itr != ranges_.end(); ++itr) {
     ranges.Add((*itr)->GetStartTimestamp().ToPresentationTime(),
                (*itr)->GetBufferedEndTimestamp().ToPresentationTime());
   }
   return ranges;
 }
 
+base::TimeDelta SourceBufferStream::GetHighestPresentationTimestamp() const {
+  if (ranges_.empty())
+    return base::TimeDelta();
+
+  // TODO(wolenetz): Report actual highest PTS here, not DTS cast to PTS. See
+  // https://crbug.com/398130.
+  return ranges_.back()->GetEndTimestamp().ToPresentationTime();
+}
+
 base::TimeDelta SourceBufferStream::GetBufferedDuration() const {
   if (ranges_.empty())
     return base::TimeDelta();
 
   return ranges_.back()->GetBufferedEndTimestamp().ToPresentationTime();
 }
 
 size_t SourceBufferStream::GetBufferedSize() const {
   size_t ranges_size = 0;
   for (auto* range : ranges_)
@@ skipping 390 matching lines @@
     return false;
 
   DCHECK_NE(have_splice_buffers, have_preroll_buffer);
   splice_buffers_index_ = 0;
   pending_buffer_.swap(*out_buffer);
   pending_buffers_complete_ = false;
   return true;
 }
 
 }  // namespace media