chromecast/media/cma/backend/media_pipeline_device_factory.h

   1 // Copyright 2015 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_BACKEND_MEDIA_PIPELINE_DEVICE_FACTORY_H_
   6 #define CHROMECAST_MEDIA_CMA_BACKEND_MEDIA_PIPELINE_DEVICE_FACTORY_H_
   7
   8 #include "base/memory/scoped_ptr.h"
   9
  10 namespace chromecast {
  11 namespace media {
  12
  13 class AudioPipelineDevice;
  14 class MediaClockDevice;
  15 class MediaPipelineDeviceParams;
  16 class VideoPipelineDevice;
  17
  18 // Factory for creating platform-specific clock, audio and video devices.
  19 // A new factory will be instantiated for each media player instance.
  20 class MediaPipelineDeviceFactory {
  21  public:
  22   MediaPipelineDeviceFactory() {}
  23   virtual ~MediaPipelineDeviceFactory() {}
  24
  25   virtual scoped_ptr<MediaClockDevice> CreateMediaClockDevice() = 0;
  26   virtual scoped_ptr<AudioPipelineDevice> CreateAudioPipelineDevice() = 0;
  27   virtual scoped_ptr<VideoPipelineDevice> CreateVideoPipelineDevice() = 0;
  28
  29  private:
  30   DISALLOW_COPY_AND_ASSIGN(MediaPipelineDeviceFactory);
  31 };
  32
  33 // Creates the platform-specific pipeline device factory.
  34 // TODO(halliwell): move into libcast_media
  35 scoped_ptr<MediaPipelineDeviceFactory> GetMediaPipelineDeviceFactory(
  36     const MediaPipelineDeviceParams& params);
  37
  38 }  // namespace media
  39 }  // namespace chromecast
  40
  41 #endif  // CHROMECAST_MEDIA_CMA_BACKEND_MEDIA_PIPELINE_DEVICE_FACTORY_H_