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 <vector>
   9
  10 #include "base/callback.h"
  11 #include "base/memory/ref_counted.h"
  12 #include "base/memory/weak_ptr.h"
  13 #include "base/threading/thread_checker.h"
  14 #include "chromecast/media/cma/pipeline/video_pipeline.h"
  15 #include "chromecast/media/cma/pipeline/video_pipeline_client.h"
  16 #include "chromecast/public/media/stream_id.h"
  17
  18 namespace gfx {
  19 class Size;
  20 }
  21
  22 namespace media {
  23 class AudioDecoderConfig;
  24 class VideoDecoderConfig;
  25 }
  26
  27 namespace chromecast {
  28 namespace media {
  29 class AvPipelineImpl;
  30 class BrowserCdmCast;
  31 class BufferingState;
  32 class CodedFrameProvider;
  33 class VideoPipelineDevice;
  34
  35 class VideoPipelineImpl : public VideoPipeline {
  36  public:
  37   // |buffering_controller| can be NULL.
  38   explicit VideoPipelineImpl(VideoPipelineDevice* video_device);
  39   ~VideoPipelineImpl() override;
  40
  41   // Input port of the pipeline.
  42   void SetCodedFrameProvider(scoped_ptr<CodedFrameProvider> frame_provider);
  43
  44   // Provide the CDM to use to decrypt samples.
  45   void SetCdm(BrowserCdmCast* media_keys);
  46
  47   // Functions to control the state of the audio pipeline.
  48   void Initialize(
  49       const std::vector<::media::VideoDecoderConfig>& configs,
  50       scoped_ptr<CodedFrameProvider> frame_provider,
  51       const ::media::PipelineStatusCB& status_cb);
  52   bool StartPlayingFrom(base::TimeDelta time,
  53                         const scoped_refptr<BufferingState>& buffering_state);
  54   void Flush(const ::media::PipelineStatusCB& status_cb);
  55   void Stop();
  56
  57   // Update the playback statistics for this video stream.
  58   void UpdateStatistics();
  59
  60   // VideoPipeline implementation.
  61   void SetClient(const VideoPipelineClient& client) override;
  62
  63  private:
  64   void OnFlushDone(const ::media::PipelineStatusCB& status_cb);
  65   void OnUpdateConfig(StreamId id,
  66                       const ::media::AudioDecoderConfig& audio_config,
  67                       const ::media::VideoDecoderConfig& video_config);
  68   void OnNaturalSizeChanged(const gfx::Size& size);
  69
  70   VideoPipelineDevice* video_device_;
  71
  72   scoped_ptr<AvPipelineImpl> av_pipeline_impl_;
  73   VideoPipelineClient video_client_;
  74
  75   ::media::PipelineStatistics previous_stats_;
  76
  77   base::WeakPtr<VideoPipelineImpl> weak_this_;
  78   base::WeakPtrFactory<VideoPipelineImpl> weak_factory_;
  79
  80   DISALLOW_COPY_AND_ASSIGN(VideoPipelineImpl);
  81 };
  82
  83 }  // namespace media
  84 }  // namespace chromecast
  85
  86 #endif  // CHROMECAST_MEDIA_CMA_BASE_VIDEO_PIPELINE_IMPL_H_