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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_MEDIA_RENDERER_WEBAUDIODEVICE_IMPL_H_ | 5 #ifndef CONTENT_RENDERER_MEDIA_MEDIA_RENDERER_WEBAUDIODEVICE_IMPL_H_ |
6 #define CONTENT_RENDERER_MEDIA_MEDIA_RENDERER_WEBAUDIODEVICE_IMPL_H_ | 6 #define CONTENT_RENDERER_MEDIA_MEDIA_RENDERER_WEBAUDIODEVICE_IMPL_H_ |
7 | 7 |
8 #include "base/memory/ref_counted.h" | 8 #include "base/memory/ref_counted.h" |
9 #include "base/threading/thread_checker.h" | 9 #include "base/threading/thread_checker.h" |
10 #include "media/audio/audio_parameters.h" | 10 #include "media/audio/audio_parameters.h" |
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27 int session_id); | 27 int session_id); |
28 virtual ~RendererWebAudioDeviceImpl(); | 28 virtual ~RendererWebAudioDeviceImpl(); |
29 | 29 |
30 // blink::WebAudioDevice implementation. | 30 // blink::WebAudioDevice implementation. |
31 virtual void start(); | 31 virtual void start(); |
32 virtual void stop(); | 32 virtual void stop(); |
33 virtual double sampleRate(); | 33 virtual double sampleRate(); |
34 | 34 |
35 // AudioRendererSink::RenderCallback implementation. | 35 // AudioRendererSink::RenderCallback implementation. |
36 virtual int Render(media::AudioBus* dest, | 36 virtual int Render(media::AudioBus* dest, |
37 int audio_delay_milliseconds) OVERRIDE; | 37 int audio_delay_milliseconds) override; |
38 | 38 |
39 virtual void OnRenderError() OVERRIDE; | 39 virtual void OnRenderError() override; |
40 | 40 |
41 private: | 41 private: |
42 const media::AudioParameters params_; | 42 const media::AudioParameters params_; |
43 | 43 |
44 // Weak reference to the callback into WebKit code. | 44 // Weak reference to the callback into WebKit code. |
45 blink::WebAudioDevice::RenderCallback* const client_callback_; | 45 blink::WebAudioDevice::RenderCallback* const client_callback_; |
46 | 46 |
47 // To avoid the need for locking, ensure the control methods of the | 47 // To avoid the need for locking, ensure the control methods of the |
48 // blink::WebAudioDevice implementation are called on the same thread. | 48 // blink::WebAudioDevice implementation are called on the same thread. |
49 base::ThreadChecker thread_checker_; | 49 base::ThreadChecker thread_checker_; |
50 | 50 |
51 // When non-NULL, we are started. When NULL, we are stopped. | 51 // When non-NULL, we are started. When NULL, we are stopped. |
52 scoped_refptr<media::AudioOutputDevice> output_device_; | 52 scoped_refptr<media::AudioOutputDevice> output_device_; |
53 | 53 |
54 // ID to allow browser to select the correct input device for unified IO. | 54 // ID to allow browser to select the correct input device for unified IO. |
55 int session_id_; | 55 int session_id_; |
56 | 56 |
57 DISALLOW_COPY_AND_ASSIGN(RendererWebAudioDeviceImpl); | 57 DISALLOW_COPY_AND_ASSIGN(RendererWebAudioDeviceImpl); |
58 }; | 58 }; |
59 | 59 |
60 } // namespace content | 60 } // namespace content |
61 | 61 |
62 #endif // CONTENT_RENDERER_MEDIA_MEDIA_RENDERER_WEBAUDIODEVICE_IMPL_H_ | 62 #endif // CONTENT_RENDERER_MEDIA_MEDIA_RENDERER_WEBAUDIODEVICE_IMPL_H_ |
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