chromecast/media/cma/pipeline/video_pipeline_impl.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_MEDIA_CMA_BASE_VIDEO_PIPELINE_IMPL_H_
   6 #define CHROMECAST_MEDIA_CMA_BASE_VIDEO_PIPELINE_IMPL_H_
   7
   8 #include "base/callback.h"
   9 #include "base/memory/ref_counted.h"
  10 #include "base/memory/weak_ptr.h"
  11 #include "base/threading/thread_checker.h"
  12 #include "chromecast/media/cma/pipeline/video_pipeline.h"
  13 #include "chromecast/media/cma/pipeline/video_pipeline_client.h"
  14
  15 namespace gfx {
  16 class Size;
  17 }
  18
  19 namespace media {
  20 class AudioDecoderConfig;
  21 class VideoDecoderConfig;
  22 }
  23
  24 namespace chromecast {
  25 namespace media {
  26 class AvPipelineImpl;
  27 class BrowserCdmCast;
  28 class BufferingState;
  29 class CodedFrameProvider;
  30 class VideoPipelineDevice;
  31
  32 class VideoPipelineImpl : public VideoPipeline {
  33  public:
  34   // |buffering_controller| can be NULL.
  35   explicit VideoPipelineImpl(VideoPipelineDevice* video_device);
  36   ~VideoPipelineImpl() override;
  37
  38   // Input port of the pipeline.
  39   void SetCodedFrameProvider(scoped_ptr<CodedFrameProvider> frame_provider);
  40
  41   // Provide the CDM to use to decrypt samples.
  42   void SetCdm(BrowserCdmCast* media_keys);
  43
  44   // Functions to control the state of the audio pipeline.
  45   void Initialize(
  46       const ::media::VideoDecoderConfig& config,
  47       scoped_ptr<CodedFrameProvider> frame_provider,
  48       const ::media::PipelineStatusCB& status_cb);
  49   bool StartPlayingFrom(base::TimeDelta time,
  50                         const scoped_refptr<BufferingState>& buffering_state);
  51   void Flush(const ::media::PipelineStatusCB& status_cb);
  52   void Stop();
  53
  54   // Update the playback statistics for this video stream.
  55   void UpdateStatistics();
  56
  57   // VideoPipeline implementation.
  58   void SetClient(const VideoPipelineClient& client) override;
  59
  60  private:
  61   void OnFlushDone(const ::media::PipelineStatusCB& status_cb);
  62   void OnUpdateConfig(const ::media::AudioDecoderConfig& audio_config,
  63                       const ::media::VideoDecoderConfig& video_config);
  64   void OnNaturalSizeChanged(const gfx::Size& size);
  65
  66   VideoPipelineDevice* video_device_;
  67
  68   scoped_ptr<AvPipelineImpl> av_pipeline_impl_;
  69   VideoPipelineClient video_client_;
  70
  71   ::media::PipelineStatistics previous_stats_;
  72
  73   base::WeakPtr<VideoPipelineImpl> weak_this_;
  74   base::WeakPtrFactory<VideoPipelineImpl> weak_factory_;
  75
  76   DISALLOW_COPY_AND_ASSIGN(VideoPipelineImpl);
  77 };
  78
  79 }  // namespace media
  80 }  // namespace chromecast
  81
  82 #endif  // CHROMECAST_MEDIA_CMA_BASE_VIDEO_PIPELINE_IMPL_H_