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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 // Implementation of AudioInputStream for Windows using Windows Core Audio | 5 // Implementation of AudioInputStream for Windows using Windows Core Audio |
6 // WASAPI for low latency capturing. | 6 // WASAPI for low latency capturing. |
7 // | 7 // |
8 // Overview of operation: | 8 // Overview of operation: |
9 // | 9 // |
10 // - An object of WASAPIAudioInputStream is created by the AudioManager | 10 // - An object of WASAPIAudioInputStream is created by the AudioManager |
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51 // interface to control the master volume level of an audio endpoint device. | 51 // interface to control the master volume level of an audio endpoint device. |
52 // This implementation is using the ISimpleAudioVolume interface. | 52 // This implementation is using the ISimpleAudioVolume interface. |
53 // MSDN states that "In rare cases, a specialized audio application might | 53 // MSDN states that "In rare cases, a specialized audio application might |
54 // require the use of the IAudioEndpointVolume". | 54 // require the use of the IAudioEndpointVolume". |
55 // | 55 // |
56 #ifndef MEDIA_AUDIO_WIN_AUDIO_LOW_LATENCY_INPUT_WIN_H_ | 56 #ifndef MEDIA_AUDIO_WIN_AUDIO_LOW_LATENCY_INPUT_WIN_H_ |
57 #define MEDIA_AUDIO_WIN_AUDIO_LOW_LATENCY_INPUT_WIN_H_ | 57 #define MEDIA_AUDIO_WIN_AUDIO_LOW_LATENCY_INPUT_WIN_H_ |
58 | 58 |
59 #include <Audioclient.h> | 59 #include <Audioclient.h> |
60 #include <MMDeviceAPI.h> | 60 #include <MMDeviceAPI.h> |
| 61 #include <stddef.h> |
| 62 #include <stdint.h> |
61 | 63 |
62 #include <string> | 64 #include <string> |
63 | 65 |
64 #include "base/compiler_specific.h" | 66 #include "base/compiler_specific.h" |
65 #include "base/macros.h" | 67 #include "base/macros.h" |
66 #include "base/threading/non_thread_safe.h" | 68 #include "base/threading/non_thread_safe.h" |
67 #include "base/threading/platform_thread.h" | 69 #include "base/threading/platform_thread.h" |
68 #include "base/threading/simple_thread.h" | 70 #include "base/threading/simple_thread.h" |
69 #include "base/win/scoped_co_mem.h" | 71 #include "base/win/scoped_co_mem.h" |
70 #include "base/win/scoped_com_initializer.h" | 72 #include "base/win/scoped_com_initializer.h" |
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203 // Extra audio bus used for storage of deinterleaved data for the OnData | 205 // Extra audio bus used for storage of deinterleaved data for the OnData |
204 // callback. | 206 // callback. |
205 scoped_ptr<media::AudioBus> audio_bus_; | 207 scoped_ptr<media::AudioBus> audio_bus_; |
206 | 208 |
207 DISALLOW_COPY_AND_ASSIGN(WASAPIAudioInputStream); | 209 DISALLOW_COPY_AND_ASSIGN(WASAPIAudioInputStream); |
208 }; | 210 }; |
209 | 211 |
210 } // namespace media | 212 } // namespace media |
211 | 213 |
212 #endif // MEDIA_AUDIO_WIN_AUDIO_LOW_LATENCY_INPUT_WIN_H_ | 214 #endif // MEDIA_AUDIO_WIN_AUDIO_LOW_LATENCY_INPUT_WIN_H_ |
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