MSE: Experimental support for new abort and duration behavior

media/filters/media_source_state.cc

 // Copyright (c) 2016 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/media_source_state.h"
 
 #include "base/callback_helpers.h"
 #include "base/stl_util.h"
 #include "media/base/media_track.h"
 #include "media/base/media_tracks.h"
@@ skipping 293 matching lines @@
     ranges_list.push_back(video_->GetBufferedRanges(duration));
 
   for (TextStreamMap::const_iterator itr = text_stream_map_.begin();
        itr != text_stream_map_.end(); ++itr) {
     ranges_list.push_back(itr->second->GetBufferedRanges(duration));
   }
 
   return ComputeRangesIntersection(ranges_list, ended);
 }
 
+TimeDelta MediaSourceState::GetHighestPresentationTimestamp() const {
+  TimeDelta max_pts;
+
+  if (audio_)
+    max_pts = std::max(max_pts, audio_->GetHighestPresentationTimestamp());
+
+  if (video_)
+    max_pts = std::max(max_pts, video_->GetHighestPresentationTimestamp());
+
+  for (TextStreamMap::const_iterator itr = text_stream_map_.begin();
+       itr != text_stream_map_.end(); ++itr) {
+    max_pts = std::max(max_pts, itr->second->GetHighestPresentationTimestamp());
+  }
+
+  return max_pts;
+}
+
 TimeDelta MediaSourceState::GetMaxBufferedDuration() const {
   TimeDelta max_duration;
 
   if (audio_)
     max_duration = std::max(max_duration, audio_->GetBufferedDuration());
 
   if (video_)
     max_duration = std::max(max_duration, video_->GetBufferedDuration());
 
   for (TextStreamMap::const_iterator itr = text_stream_map_.begin();
@@ skipping 453 matching lines @@
 
 void MediaSourceState::OnSourceInitDone(
     const StreamParser::InitParameters& params) {
   DCHECK_EQ(state_, PENDING_PARSER_INIT);
   state_ = PARSER_INITIALIZED;
   auto_update_timestamp_offset_ = params.auto_update_timestamp_offset;
   base::ResetAndReturn(&init_cb_).Run(params);
 }
 
 }  // namespace media