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| 1 // Copyright 2016 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 MEDIA_BASE_AUDIO_RENDERER_MIXER_POOL_H_ |
| 6 #define MEDIA_BASE_AUDIO_RENDERER_MIXER_POOL_H_ |
| 7 |
| 8 #include <string> |
| 9 |
| 10 #include "media/base/output_device_info.h" |
| 11 |
| 12 namespace url { |
| 13 class Origin; |
| 14 } |
| 15 |
| 16 namespace media { |
| 17 class AudioParameters; |
| 18 class AudioRendererMixer; |
| 19 |
| 20 class AudioRendererMixerPool { |
| 21 public: |
| 22 AudioRendererMixerPool() {} |
| 23 virtual ~AudioRendererMixerPool() {} |
| 24 |
| 25 // Obtains a pointer to mixer instance based on AudioParameters. The pointer |
| 26 // is guaranteed to be valid (at least) until it's rereleased by a call to |
| 27 // ReturnMixer() |
| 28 virtual media::AudioRendererMixer* GetMixer( |
| 29 int source_render_frame_id, |
| 30 const media::AudioParameters& params, |
| 31 const std::string& device_id, |
| 32 const url::Origin& security_origin, |
| 33 media::OutputDeviceStatus* device_status) = 0; |
| 34 |
| 35 // Returns mixer back to the pool. |
| 36 virtual void ReturnMixer(int source_render_frame_id, |
| 37 const media::AudioParameters& params, |
| 38 const std::string& device_id, |
| 39 const url::Origin& security_origin) = 0; |
| 40 |
| 41 // Returns output device information |
| 42 virtual media::OutputDeviceInfo GetOutputDeviceInfo( |
| 43 int source_render_frame_id, |
| 44 int session_id, |
| 45 const std::string& device_id, |
| 46 const url::Origin& security_origin) = 0; |
| 47 |
| 48 private: |
| 49 DISALLOW_COPY_AND_ASSIGN(AudioRendererMixerPool); |
| 50 }; |
| 51 |
| 52 } // namespace media |
| 53 |
| 54 #endif // MEDIA_BASE_AUDIO_RENDERER_MIXER_POOL_H_ |
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