chromecast/media/cma/pipeline/media_pipeline.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_PIPELINE_MEDIA_PIPELINE_H_
   6 #define CHROMECAST_MEDIA_CMA_PIPELINE_MEDIA_PIPELINE_H_
   7
   8 #include <vector>
   9
  10 #include "base/basictypes.h"
  11 #include "base/macros.h"
  12 #include "base/time/time.h"
  13 #include "media/base/pipeline_status.h"
  14
  15 namespace media {
  16 class AudioDecoderConfig;
  17 class BrowserCdm;
  18 class VideoDecoderConfig;
  19 }
  20
  21 namespace chromecast {
  22 namespace media {
  23 class AudioPipeline;
  24 class CodedFrameProvider;
  25 struct MediaPipelineClient;
  26 class VideoPipeline;
  27
  28 class MediaPipeline {
  29  public:
  30   MediaPipeline() {}
  31   virtual ~MediaPipeline() {}
  32
  33   // Set the media pipeline client.
  34   virtual void SetClient(const MediaPipelineClient& client) = 0;
  35
  36   // Set the CDM to use for decryption.
  37   // The CDM is refered by its id.
  38   virtual void SetCdm(int cdm_id) = 0;
  39
  40   // Return the audio/video pipeline owned by the MediaPipeline.
  41   virtual AudioPipeline* GetAudioPipeline() const = 0;
  42   virtual VideoPipeline* GetVideoPipeline() const = 0;
  43
  44   // Create an audio/video pipeline.
  45   // MediaPipeline owns the resulting audio/video pipeline.
  46   // Only one audio and one video pipeline can be created.
  47   virtual void InitializeAudio(
  48       const ::media::AudioDecoderConfig& config,
  49       scoped_ptr<CodedFrameProvider> frame_provider,
  50       const ::media::PipelineStatusCB& status_cb) = 0;
  51   virtual void InitializeVideo(
  52       const std::vector<::media::VideoDecoderConfig>& configs,
  53       scoped_ptr<CodedFrameProvider> frame_provider,
  54       const ::media::PipelineStatusCB& status_cb) = 0;
  55
  56   // Control the media pipeline state machine.
  57   virtual void StartPlayingFrom(base::TimeDelta time) = 0;
  58   virtual void Flush(const ::media::PipelineStatusCB& status_cb) = 0;
  59   virtual void Stop() = 0;
  60
  61   // Set the playback rate.
  62   virtual void SetPlaybackRate(double playback_rate) = 0;
  63
  64  private:
  65   DISALLOW_COPY_AND_ASSIGN(MediaPipeline);
  66 };
  67
  68 }  // namespace media
  69 }  // namespace chromecast
  70
  71 #endif  // CHROMECAST_MEDIA_CMA_PIPELINE_MEDIA_PIPELINE_H_