Introducing DemuxerHost::OnMetadata.

media/filters/chunk_demuxer.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/chunk_demuxer.h"
 
 #include <algorithm>
 #include <limits>
 #include <list>
 #include <utility>
@@ skipping 1003 matching lines @@
 
   if (!cb.is_null()) {
     cb.Run(error);
     return;
   }
 
   base::AutoUnlock auto_unlock(lock_);
   host_->OnDemuxerError(error);
 }
 
+void ChunkDemuxer::ReportMetadata_Locked() const {
+  DVLOG(1) << __func__;
+  lock_.AssertAcquired();
+  DCHECK_EQ(state_, INITIALIZED);
+
+  PipelineMetadata metadata;
+  metadata.timeline_offset = timeline_offset_;
+  if (video_) {
+    metadata.has_video = true;
+    metadata.natural_size = video_->video_decoder_config().natural_size();
+    metadata.video_rotation = video_->video_rotation();
+  }
+  if (audio_) {
+    metadata.has_audio = true;
+  }
+
+  base::AutoUnlock auto_unlock(lock_);
+  host_->OnMetadata(metadata);
+}
+
 bool ChunkDemuxer::IsSeekWaitingForData_Locked() const {
   lock_.AssertAcquired();
   for (MediaSourceStateMap::const_iterator itr = source_state_map_.begin();
        itr != source_state_map_.end(); ++itr) {
     if (itr->second->IsSeekWaitingForData())
       return true;
   }
 
   return false;
 }
@@ skipping 61 matching lines @@
 
   SeekAllSources(GetStartTime());
   StartReturningData();
 
   if (duration_ == kNoTimestamp)
     duration_ = kInfiniteDuration;
 
   // The demuxer is now initialized after the |start_timestamp_| was set.
   ChangeState_Locked(INITIALIZED);
   base::ResetAndReturn(&init_cb_).Run(PIPELINE_OK);
+
+  // Report metadata.
+  ReportMetadata_Locked();
 }
 
 // static
 MediaTrack::Id ChunkDemuxer::GenerateMediaTrackId() {
   static unsigned g_track_count = 0;
   return base::UintToString(++g_track_count);
 }
 
 ChunkDemuxerStream* ChunkDemuxer::CreateDemuxerStream(
     DemuxerStream::Type type) {
@@ skipping 145 matching lines @@
 }
 
 void ChunkDemuxer::ShutdownAllStreams() {
   for (MediaSourceStateMap::iterator itr = source_state_map_.begin();
        itr != source_state_map_.end(); ++itr) {
     itr->second->Shutdown();
   }
 }
 
 }  // namespace media