[Chromecast] Add CmaMediaRendererFactory and IPC proxy components

chromecast/renderer/media/audio_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_AUDIO_PIPELINE_PROXY_H_
+#define CHROMECAST_RENDERER_MEDIA_AUDIO_PIPELINE_PROXY_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/audio_pipeline.h"
+#include "media/base/pipeline_status.h"
+
+namespace base {
+class MessageLoopProxy;
+class SharedMemory;
+}
+
+namespace media {
+class AudioDecoderConfig;
+}
+
+namespace chromecast {
+namespace media {
+class AvStreamerProxy;
+struct AvPipelineClient;
+class CodedFrameProvider;
+}
+}
+
+namespace chromecast {
+namespace cma {

[gunsch, 2014/12/20 22:41:33]

note: this should just all be chromecast::media . We should drop the old "cma"
namespace while upstreaming this code. This includes most of the new classes
added.

[erickung1, 2014/12/21 11:10:46]

Done.

+class AudioPipelineProxyInternal;
+class MediaChannelProxy;
+
+class AudioPipelineProxy : public chromecast::media::AudioPipeline {
+ public:
+  AudioPipelineProxy(
+      scoped_refptr<base::MessageLoopProxy> io_message_loop_proxy,
+      scoped_refptr<MediaChannelProxy> media_channel_proxy);
+  virtual ~AudioPipelineProxy();
+
+  void Initialize(
+      const ::media::AudioDecoderConfig& config,
+      scoped_ptr<chromecast::media::CodedFrameProvider> frame_provider,
+      const ::media::PipelineStatusCB& status_cb);
+  void StartFeeding();
+  void Flush(const base::Closure& done_cb);
+  void Stop();
+
+  // chromecast::media::AudioPipeline implementation.
+  void SetClient(const chromecast::media::AvPipelineClient& client) override;
+  void SetVolume(float volume) override;
+
+ private:
+  base::ThreadChecker thread_checker_;
+
+  void OnAvPipeCreated(
+      const ::media::AudioDecoderConfig& config,
+      const ::media::PipelineStatusCB& status_cb,
+      scoped_ptr<base::SharedMemory> shared_memory);
+  void OnPipeWrite();
+  void OnPipeRead();
+
+  scoped_refptr<base::MessageLoopProxy> io_message_loop_proxy_;
+
+  // |proxy_| main goal is to convert function calls to IPC messages.
+  scoped_ptr<AudioPipelineProxyInternal> proxy_;
+
+  scoped_ptr<chromecast::media::AvStreamerProxy> audio_streamer_;
+
+  base::WeakPtrFactory<AudioPipelineProxy> weak_factory_;
+  base::WeakPtr<AudioPipelineProxy> weak_this_;
+
+  DISALLOW_COPY_AND_ASSIGN(AudioPipelineProxy);

[gunsch, 2014/12/20 22:41:33]

include base/macros.h

[erickung1, 2014/12/21 11:10:46]

Done.

+};
+
+}  // namespace cma
+}  // namespace chromecast
+
+#endif  // CHROMECAST_RENDERER_MEDIA_AUDIO_PIPELINE_PROXY_H_
+