Motown: Convert MediaSink to expose MediaTimelineControlSite

services/media/audio/audio_track_impl.cc

 // Copyright 2015 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 <algorithm>
 #include <limits>
 
 #include "base/logging.h"
 #include "mojo/services/media/common/cpp/linear_transform.h"
 #include "mojo/services/media/common/cpp/timeline.h"
@@ skipping 313 matching lines @@
                          rate_in_frames_per_ns.reference_delta(),
                          timeline_function.subject_time() * frames_per_ns_);
 }
 
 void AudioTrackImpl::OnPacketReceived(AudioPipe::AudioPacketRefPtr packet) {
   DCHECK(packet);
   for (const auto& output : outputs_) {
     DCHECK(output);
     output->PushToPendingQueue(packet);
   }
+
+  if (packet->state()->packet()->end_of_stream) {
+    timeline_control_site_.SetEndOfStreamPts(
+        (packet->state()->packet()->pts + packet->frame_count()) /
+            frames_per_ns_);
+  }
 }
 
 bool AudioTrackImpl::OnFlushRequested(const MediaConsumer::FlushCallback& cbk) {
   for (const auto& output : outputs_) {
     DCHECK(output);
     output->FlushPendingQueue();
   }
   cbk.Run();
   return true;
 }
 
 }  // namespace audio
 }  // namespace media
 }  // namespace mojo