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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #ifndef CONTENT_RENDERER_MEDIA_RENDERER_WEBAUDIODEVICE_IMPL_H_ | 5 #ifndef CONTENT_RENDERER_MEDIA_RENDERER_WEBAUDIODEVICE_IMPL_H_ |
| 6 #define CONTENT_RENDERER_MEDIA_RENDERER_WEBAUDIODEVICE_IMPL_H_ | 6 #define CONTENT_RENDERER_MEDIA_RENDERER_WEBAUDIODEVICE_IMPL_H_ |
| 7 | 7 |
| 8 #include "base/cancelable_callback.h" | 8 #include "base/cancelable_callback.h" |
| 9 #include "base/memory/ref_counted.h" | 9 #include "base/memory/ref_counted.h" |
| 10 #include "base/threading/thread_checker.h" | 10 #include "base/threading/thread_checker.h" |
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| 32 blink::WebAudioDevice::RenderCallback* callback, | 32 blink::WebAudioDevice::RenderCallback* callback, |
| 33 int session_id); | 33 int session_id); |
| 34 ~RendererWebAudioDeviceImpl() override; | 34 ~RendererWebAudioDeviceImpl() override; |
| 35 | 35 |
| 36 // blink::WebAudioDevice implementation. | 36 // blink::WebAudioDevice implementation. |
| 37 void start() override; | 37 void start() override; |
| 38 void stop() override; | 38 void stop() override; |
| 39 double sampleRate() override; | 39 double sampleRate() override; |
| 40 | 40 |
| 41 // AudioRendererSink::RenderCallback implementation. | 41 // AudioRendererSink::RenderCallback implementation. |
| 42 int Render(media::AudioBus* dest, uint32_t audio_delay_milliseconds, | 42 int Render(media::AudioBus* dest, int audio_delay_milliseconds) override; |
| 43 uint32_t frames_skipped) override; | |
| 44 | 43 |
| 45 void OnRenderError() override; | 44 void OnRenderError() override; |
| 46 | 45 |
| 47 private: | 46 private: |
| 48 const media::AudioParameters params_; | 47 const media::AudioParameters params_; |
| 49 | 48 |
| 50 // Weak reference to the callback into WebKit code. | 49 // Weak reference to the callback into WebKit code. |
| 51 blink::WebAudioDevice::RenderCallback* const client_callback_; | 50 blink::WebAudioDevice::RenderCallback* const client_callback_; |
| 52 | 51 |
| 53 // To avoid the need for locking, ensure the control methods of the | 52 // To avoid the need for locking, ensure the control methods of the |
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| 83 // A cancelable task that is posted to start the |null_audio_sink_| after a | 82 // A cancelable task that is posted to start the |null_audio_sink_| after a |
| 84 // period of silence. We do this on android to save battery consumption. | 83 // period of silence. We do this on android to save battery consumption. |
| 85 base::CancelableClosure start_null_audio_sink_callback_; | 84 base::CancelableClosure start_null_audio_sink_callback_; |
| 86 | 85 |
| 87 DISALLOW_COPY_AND_ASSIGN(RendererWebAudioDeviceImpl); | 86 DISALLOW_COPY_AND_ASSIGN(RendererWebAudioDeviceImpl); |
| 88 }; | 87 }; |
| 89 | 88 |
| 90 } // namespace content | 89 } // namespace content |
| 91 | 90 |
| 92 #endif // CONTENT_RENDERER_MEDIA_RENDERER_WEBAUDIODEVICE_IMPL_H_ | 91 #endif // CONTENT_RENDERER_MEDIA_RENDERER_WEBAUDIODEVICE_IMPL_H_ |
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