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Side by Side Diff: content/renderer/media/render_audiosourceprovider.h

Issue 10834033: Move AudioDevice and AudioInputDevice to media. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Addressed comments and fixed a few lint issues Created 8 years, 4 months ago
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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 // RenderAudioSourceProvider provides a bridge between classes: 5 // RenderAudioSourceProvider provides a bridge between classes:
6 // WebKit::WebAudioSourceProvider <---> media::AudioRendererSink 6 // WebKit::WebAudioSourceProvider <---> media::AudioRendererSink
7 // 7 //
8 // RenderAudioSourceProvider is a "sink" of audio, and uses a default 8 // RenderAudioSourceProvider is a "sink" of audio, and uses a default
9 // AudioDevice if a client has not explicitly been set. 9 // AudioOutputDevice if a client has not explicitly been set.
10 // 10 //
11 // WebKit optionally sets a client, and then periodically calls provideInput() 11 // WebKit optionally sets a client, and then periodically calls provideInput()
12 // to render a certain number of audio sample-frames. provideInput() 12 // to render a certain number of audio sample-frames. provideInput()
13 // uses the renderer to get this data, and then massages it into the form 13 // uses the renderer to get this data, and then massages it into the form
14 // required by provideInput(). In this case, the default AudioDevice 14 // required by provideInput(). In this case, the default AudioOutputDevice
15 // is no longer used. 15 // is no longer used.
16 // 16 //
17 // THREAD SAFETY: 17 // THREAD SAFETY:
18 // It is assumed that the callers to setClient() and provideInput() 18 // It is assumed that the callers to setClient() and provideInput()
19 // implement appropriate locking for thread safety when making 19 // implement appropriate locking for thread safety when making
20 // these calls. This happens in WebKit. 20 // these calls. This happens in WebKit.
21 21
22 #ifndef CONTENT_RENDERER_MEDIA_RENDER_AUDIOSOURCEPROVIDER_H_ 22 #ifndef CONTENT_RENDERER_MEDIA_RENDER_AUDIOSOURCEPROVIDER_H_
23 #define CONTENT_RENDERER_MEDIA_RENDER_AUDIOSOURCEPROVIDER_H_ 23 #define CONTENT_RENDERER_MEDIA_RENDER_AUDIOSOURCEPROVIDER_H_
24 24
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77 // Protects access to sink_ 77 // Protects access to sink_
78 base::Lock sink_lock_; 78 base::Lock sink_lock_;
79 79
80 // default_sink_ is the default sink. 80 // default_sink_ is the default sink.
81 scoped_refptr<media::AudioRendererSink> default_sink_; 81 scoped_refptr<media::AudioRendererSink> default_sink_;
82 82
83 DISALLOW_COPY_AND_ASSIGN(RenderAudioSourceProvider); 83 DISALLOW_COPY_AND_ASSIGN(RenderAudioSourceProvider);
84 }; 84 };
85 85
86 #endif // CONTENT_RENDERER_MEDIA_RENDER_AUDIOSOURCEPROVIDER_H_ 86 #endif // CONTENT_RENDERER_MEDIA_RENDER_AUDIOSOURCEPROVIDER_H_
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