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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_BACKEND_MEDIA_PIPELINE_DEVICE_H_ | |
6 #define CHROMECAST_MEDIA_CMA_BACKEND_MEDIA_PIPELINE_DEVICE_H_ | |
7 | |
8 #include "base/callback.h" | |
9 #include "base/macros.h" | |
10 #include "base/memory/scoped_ptr.h" | |
11 | |
12 namespace chromecast { | |
13 namespace media { | |
14 class AudioPipelineDevice; | |
15 class MediaClockDevice; | |
16 class MediaPipelineDeviceFactory; | |
17 class MediaPipelineDeviceParams; | |
18 class VideoPipelineDevice; | |
19 | |
20 // MediaPipelineDevice is the owner of the underlying audio/video/clock | |
21 // devices. It ensures that the clock outlives the audio and video devices, so | |
22 // it is safe for them to reference the clock with a raw pointer. | |
23 class MediaPipelineDevice { | |
24 public: | |
25 // Constructs object using clock, audio, video created by given factory. | |
26 explicit MediaPipelineDevice(scoped_ptr<MediaPipelineDeviceFactory> factory); | |
27 | |
28 // Constructs explicitly from separate clock, audio, video elements | |
29 MediaPipelineDevice(scoped_ptr<MediaClockDevice> media_clock_device, | |
30 scoped_ptr<AudioPipelineDevice> audio_pipeline_device, | |
31 scoped_ptr<VideoPipelineDevice> video_pipeline_device); | |
32 ~MediaPipelineDevice(); | |
33 | |
34 AudioPipelineDevice* GetAudioPipelineDevice() const { | |
35 return audio_pipeline_device_.get(); | |
36 } | |
37 VideoPipelineDevice* GetVideoPipelineDevice() const { | |
38 return video_pipeline_device_.get(); | |
39 } | |
40 MediaClockDevice* GetMediaClockDevice() const { | |
41 return media_clock_device_.get(); | |
42 } | |
43 | |
44 private: | |
45 scoped_ptr<MediaClockDevice> media_clock_device_; | |
46 scoped_ptr<AudioPipelineDevice> audio_pipeline_device_; | |
47 scoped_ptr<VideoPipelineDevice> video_pipeline_device_; | |
48 | |
49 DISALLOW_COPY_AND_ASSIGN(MediaPipelineDevice); | |
50 }; | |
51 | |
52 // Factory method to create a MediaPipelineDevice. | |
53 typedef base::Callback<scoped_ptr<MediaPipelineDevice>( | |
54 const MediaPipelineDeviceParams&)> CreatePipelineDeviceCB; | |
55 | |
56 } // namespace media | |
57 } // namespace chromecast | |
58 | |
59 #endif // CHROMECAST_MEDIA_CMA_BACKEND_MEDIA_PIPELINE_DEVICE_H_ | |
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