WIP - WebMediaPlayer switch media renderer.

media/base/pipeline_impl.cc

Index: media/base/pipeline_impl.cc
diff --git a/media/base/pipeline_impl.cc b/media/base/pipeline_impl.cc
index 0590d00cc550f21be7bc6842bbac941a4d516cde..aef974df42e396f078503339c90b8a67f49af3ee 100644
--- a/media/base/pipeline_impl.cc
+++ b/media/base/pipeline_impl.cc
@@ -17,6 +17,7 @@
 #include "base/synchronization/lock.h"
 #include "base/synchronization/waitable_event.h"
 #include "base/threading/thread_task_runner_handle.h"
+#include "media/base/audio_decoder_config.h"
 #include "media/base/bind_to_current_loop.h"
 #include "media/base/demuxer.h"
 #include "media/base/media_log.h"
@@ -66,6 +67,10 @@ class PipelineImpl::RendererWrapper : public DemuxerHost,
   void OnSelectedVideoTrackChanged(
       const std::vector<MediaTrack::Id>& selectedTrackId);
 
+  // Get current video/audio configure.
+  VideoDecoderConfig GetVideoDecoderConfig() const;
+  AudioDecoderConfig GetAudioDecoderConfig() const;
+
  private:
   // Contains state shared between main and media thread.
   // Main thread can only read. Media thread can both - read and write.
@@ -170,6 +175,10 @@ class PipelineImpl::RendererWrapper : public DemuxerHost,
   // Series of tasks to Start(), Seek(), and Resume().
   std::unique_ptr<SerialRunner> pending_callbacks_;
 
+  // Current audio/video decoder config.
+  AudioDecoderConfig audio_decoder_config_;
+  VideoDecoderConfig video_decoder_config_;
+
   base::WeakPtr<RendererWrapper> weak_this_;
   base::WeakPtrFactory<RendererWrapper> weak_factory_;
   DISALLOW_COPY_AND_ASSIGN(RendererWrapper);
@@ -552,6 +561,16 @@ void PipelineImpl::RendererWrapper::OnEnded() {
   CheckPlaybackEnded();
 }
 
+VideoDecoderConfig PipelineImpl::RendererWrapper::GetVideoDecoderConfig()
+    const {
+  return video_decoder_config_;
+}
+
+AudioDecoderConfig PipelineImpl::RendererWrapper::GetAudioDecoderConfig()

[miu, 2016/09/14 20:59:27]

base::Optional<AudioDecoderConfig>
PipelineImpl::RendererWrapper::GetAudioDecoderConfig() const {
  base::AutoLock autolock(&lock_);
  if (the var was set)
    return audio_decoder_config_;
  else
    return base::nullopt;
}

+    const {
+  return audio_decoder_config_;
+}
+
 void PipelineImpl::OnEnabledAudioTracksChanged(
     const std::vector<MediaTrack::Id>& enabledTrackIds) {
   DCHECK(thread_checker_.CalledOnValidThread());
@@ -824,6 +843,13 @@ void PipelineImpl::RendererWrapper::InitializeRenderer(
     return;
   }
 
+  DemuxerStream* stream = demuxer_->GetStream(DemuxerStream::AUDIO);
+  if (stream)
+    audio_decoder_config_ = stream->audio_decoder_config();
+  stream = demuxer_->GetStream(DemuxerStream::VIDEO);
+  if (stream)
+    video_decoder_config_ = stream->video_decoder_config();
+
   if (cdm_context_)
     shared_state_.renderer->SetCdm(cdm_context_,
                                    base::Bind(&IgnoreCdmAttached));
@@ -1259,4 +1285,16 @@ void PipelineImpl::OnSuspendDone() {
   base::ResetAndReturn(&suspend_cb_).Run(PIPELINE_OK);
 }
 
+VideoDecoderConfig PipelineImpl::GetVideoDecoderConfig() const {
+  if (!renderer_wrapper_)
+    return VideoDecoderConfig();
+  return renderer_wrapper_->GetVideoDecoderConfig();
+}
+
+AudioDecoderConfig PipelineImpl::GetAudioDecoderConfig() const {
+  if (!renderer_wrapper_)
+    return AudioDecoderConfig();
+  return renderer_wrapper_->GetAudioDecoderConfig();
+}
+
 }  // namespace media