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| 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_PUBLIC_MEDIA_MEDIA_PIPELINE_BACKEND_H_ |
| 6 #define CHROMECAST_PUBLIC_MEDIA_MEDIA_PIPELINE_BACKEND_H_ |
| 7 |
| 8 namespace chromecast { |
| 9 namespace media { |
| 10 |
| 11 class AudioPipelineDevice; |
| 12 class MediaClockDevice; |
| 13 struct MediaPipelineDeviceParams; |
| 14 class VideoPipelineDevice; |
| 15 |
| 16 // Interface for creating and managing ownership of platform-specific clock, |
| 17 // audio and video devices. cast_shell owns the MediaPipelineBackend for |
| 18 // as long as it is needed; the implementation is responsible for |
| 19 // tearing down the individual components correctly when it is destroyed. |
| 20 // A new MediaPipelineBackend will be instantiated for each media player |
| 21 // instance. |
| 22 class MediaPipelineBackend { |
| 23 public: |
| 24 virtual ~MediaPipelineBackend() {} |
| 25 |
| 26 // Returns the platform-specific pipeline clock. |
| 27 virtual MediaClockDevice* GetClock() = 0; |
| 28 |
| 29 // Returns the platform-specific audio backend. |
| 30 virtual AudioPipelineDevice* GetAudio() = 0; |
| 31 |
| 32 // Returns the platform-specific video backend. |
| 33 virtual VideoPipelineDevice* GetVideo() = 0; |
| 34 }; |
| 35 |
| 36 } // namespace media |
| 37 } // namespace chromecast |
| 38 |
| 39 #endif // CHROMECAST_MEDIA_CMA_BACKEND_MEDIA_PIPELINE_DEVICE_FACTORY_H_ |
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