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 #include "chromecast/public/media/stream_id.h"
  15
  16 namespace gfx {
  17 class Size;
  18 }
  19
  20 namespace media {
  21 class AudioDecoderConfig;
  22 class VideoDecoderConfig;
  23 }
  24
  25 namespace chromecast {
  26 namespace media {
  27 class AvPipelineImpl;
  28 class BrowserCdmCast;
  29 class BufferingState;
  30 class CodedFrameProvider;
  31 class VideoPipelineDevice;
  32
  33 class VideoPipelineImpl : public VideoPipeline {
  34  public:
  35   // |buffering_controller| can be NULL.
  36   explicit VideoPipelineImpl(VideoPipelineDevice* video_device);
  37   ~VideoPipelineImpl() override;
  38
  39   // Input port of the pipeline.
  40   void SetCodedFrameProvider(scoped_ptr<CodedFrameProvider> frame_provider);
  41
  42   // Provide the CDM to use to decrypt samples.
  43   void SetCdm(BrowserCdmCast* media_keys);
  44
  45   // Functions to control the state of the audio pipeline.
  46   void Initialize(
  47       const std::vector<::media::VideoDecoderConfig>& configs,
  48       scoped_ptr<CodedFrameProvider> frame_provider,
  49       const ::media::PipelineStatusCB& status_cb);
  50   bool StartPlayingFrom(base::TimeDelta time,
  51                         const scoped_refptr<BufferingState>& buffering_state);
  52   void Flush(const ::media::PipelineStatusCB& status_cb);
  53   void Stop();
  54
  55   // Update the playback statistics for this video stream.
  56   void UpdateStatistics();
  57
  58   // VideoPipeline implementation.
  59   void SetClient(const VideoPipelineClient& client) override;
  60
  61  private:
  62   void OnFlushDone(const ::media::PipelineStatusCB& status_cb);
  63   void OnUpdateConfig(StreamId id,
  64                       const ::media::AudioDecoderConfig& audio_config,
  65                       const ::media::VideoDecoderConfig& video_config);
  66   void OnNaturalSizeChanged(const gfx::Size& size);
  67
  68   VideoPipelineDevice* video_device_;
  69
  70   scoped_ptr<AvPipelineImpl> av_pipeline_impl_;
  71   VideoPipelineClient video_client_;
  72
  73   ::media::PipelineStatistics previous_stats_;
  74
  75   base::WeakPtr<VideoPipelineImpl> weak_this_;
  76   base::WeakPtrFactory<VideoPipelineImpl> weak_factory_;
  77
  78   DISALLOW_COPY_AND_ASSIGN(VideoPipelineImpl);
  79 };
  80
  81 }  // namespace media
  82 }  // namespace chromecast
  83
  84 #endif  // CHROMECAST_MEDIA_CMA_BASE_VIDEO_PIPELINE_IMPL_H_