[Chromecast] Add CmaMediaRendererFactory and IPC proxy components

chromecast/renderer/media/media_pipeline_proxy.h

+// Copyright 2014 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.
+
+#ifndef CHROMECAST_RENDERER_MEDIA_MEDIA_PIPELINE_PROXY_H_
+#define CHROMECAST_RENDERER_MEDIA_MEDIA_PIPELINE_PROXY_H_
+
+#include "base/macros.h"
+#include "base/memory/ref_counted.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/memory/weak_ptr.h"
+#include "base/threading/thread_checker.h"
+#include "chromecast/media/cma/pipeline/load_type.h"
+#include "chromecast/media/cma/pipeline/media_pipeline.h"
+#include "chromecast/media/cma/pipeline/media_pipeline_client.h"
+#include "media/base/serial_runner.h"
+
+namespace base {
+class MessageLoopProxy;
+}
+
+namespace chromecast {
+namespace media {
+class AudioPipelineProxy;
+class MediaChannelProxy;
+class MediaPipelineProxyInternal;
+class VideoPipelineProxy;
+
+class MediaPipelineProxy : public MediaPipeline {
+ public:
+  MediaPipelineProxy(
+      int render_frame_id,
+      scoped_refptr<base::MessageLoopProxy> message_loop_proxy,
+      LoadType load_type);
+  ~MediaPipelineProxy() override;
+
+  // MediaPipeline implementation.
+  void SetClient(const MediaPipelineClient& client) override;
+  void SetCdm(int cdm_id) override;
+  AudioPipeline* GetAudioPipeline() const override;
+  VideoPipeline* GetVideoPipeline() const override;
+  void InitializeAudio(
+      const ::media::AudioDecoderConfig& config,
+      scoped_ptr<CodedFrameProvider> frame_provider,
+      const ::media::PipelineStatusCB& status_cb) override;
+  void InitializeVideo(
+      const ::media::VideoDecoderConfig& config,
+      scoped_ptr<CodedFrameProvider> frame_provider,
+      const ::media::PipelineStatusCB& status_cb) override;
+  void StartPlayingFrom(base::TimeDelta time) override;
+  void Flush(const ::media::PipelineStatusCB& status_cb) override;
+  void Stop() override;
+  void SetPlaybackRate(float playback_rate) override;
+
+ private:
+  void OnProxyFlushDone(const ::media::PipelineStatusCB& status_cb,
+                        ::media::PipelineStatus status);
+
+  base::ThreadChecker thread_checker_;
+
+  scoped_refptr<base::MessageLoopProxy> io_message_loop_proxy_;
+
+  const int render_frame_id_;
+
+  // CMA channel to convey IPC messages.
+  scoped_refptr<MediaChannelProxy> const media_channel_proxy_;
+
+  scoped_ptr<MediaPipelineProxyInternal> proxy_;
+
+  bool has_audio_;
+  bool has_video_;
+  scoped_ptr<AudioPipelineProxy> audio_pipeline_;
+  scoped_ptr<VideoPipelineProxy> video_pipeline_;
+  scoped_ptr< ::media::SerialRunner> pending_callbacks_;
+
+  base::WeakPtr<MediaPipelineProxy> weak_this_;
+  base::WeakPtrFactory<MediaPipelineProxy> weak_factory_;
+
+  DISALLOW_COPY_AND_ASSIGN(MediaPipelineProxy);
+};
+
+}  // namespace media
+}  // namespace chromecast
+
+#endif  // CHROMECAST_RENDERER_MEDIA_MEDIA_PIPELINE_PROXY_H_