chromecast/renderer/media/video_pipeline_proxy.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CHROMECAST_RENDERER_MEDIA_VIDEO_PIPELINE_PROXY_H_
   6 #define CHROMECAST_RENDERER_MEDIA_VIDEO_PIPELINE_PROXY_H_
   7
   8 #include "base/macros.h"
   9 #include "base/memory/ref_counted.h"
  10 #include "base/memory/scoped_ptr.h"
  11 #include "base/memory/weak_ptr.h"
  12 #include "base/threading/thread_checker.h"
  13 #include "chromecast/media/cma/pipeline/video_pipeline.h"
  14 #include "media/base/pipeline_status.h"
  15
  16 namespace base {
  17 class SingleThreadTaskRunner;
  18 class SharedMemory;
  19 }
  20
  21 namespace media {
  22 class VideoDecoderConfig;
  23 }
  24
  25 namespace chromecast {
  26 namespace media {
  27 struct AvPipelineClient;
  28 class AvStreamerProxy;
  29 class CodedFrameProvider;
  30 class VideoPipelineProxyInternal;
  31 class MediaChannelProxy;
  32
  33 class VideoPipelineProxy : public VideoPipeline {
  34  public:
  35   VideoPipelineProxy(scoped_refptr<base::SingleThreadTaskRunner> io_task_runner,
  36                      scoped_refptr<MediaChannelProxy> media_channel_proxy);
  37   ~VideoPipelineProxy() override;
  38
  39   void Initialize(const std::vector<::media::VideoDecoderConfig>& configs,
  40                   scoped_ptr<CodedFrameProvider> frame_provider,
  41                   const ::media::PipelineStatusCB& status_cb);
  42   void StartFeeding();
  43   void Flush(const base::Closure& done_cb);
  44   void Stop();
  45
  46   // VideoPipeline implementation.
  47   void SetClient(const VideoPipelineClient& video_client) override;
  48
  49  private:
  50   base::ThreadChecker thread_checker_;
  51
  52   void OnAvPipeCreated(
  53       const std::vector<::media::VideoDecoderConfig>& configs,
  54       const ::media::PipelineStatusCB& status_cb,
  55       scoped_ptr<base::SharedMemory> shared_memory);
  56   void OnPipeWrite();
  57   void OnPipeRead();
  58
  59   scoped_refptr<base::SingleThreadTaskRunner> io_task_runner_;
  60
  61   // |proxy_| main goal is to convert function calls to IPC messages.
  62   scoped_ptr<VideoPipelineProxyInternal> proxy_;
  63
  64   scoped_ptr<AvStreamerProxy> video_streamer_;
  65
  66   base::WeakPtr<VideoPipelineProxy> weak_this_;
  67   base::WeakPtrFactory<VideoPipelineProxy> weak_factory_;
  68
  69   DISALLOW_COPY_AND_ASSIGN(VideoPipelineProxy);
  70 };
  71
  72 }  // namespace media
  73 }  // namespace chromecast
  74
  75 #endif  // CHROMECAST_RENDERER_MEDIA_VIDEO_PIPELINE_PROXY_H_