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1 // Copyright (c) 2010 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2010 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 MEDIA_AUDIO_AUDIO_INPUT_CONTROLLER_H_ | 5 #ifndef MEDIA_AUDIO_AUDIO_INPUT_CONTROLLER_H_ |
6 #define MEDIA_AUDIO_AUDIO_INPUT_CONTROLLER_H_ | 6 #define MEDIA_AUDIO_AUDIO_INPUT_CONTROLLER_H_ |
7 | 7 |
8 #include "base/lock.h" | |
9 #include "base/ref_counted.h" | 8 #include "base/ref_counted.h" |
10 #include "base/scoped_ptr.h" | 9 #include "base/scoped_ptr.h" |
| 10 #include "base/synchronization/lock.h" |
11 #include "base/threading/thread.h" | 11 #include "base/threading/thread.h" |
12 #include "media/audio/audio_io.h" | 12 #include "media/audio/audio_io.h" |
13 #include "media/audio/audio_manager.h" | 13 #include "media/audio/audio_manager.h" |
14 | 14 |
15 // An AudioInputController controls an AudioInputStream and records data | 15 // An AudioInputController controls an AudioInputStream and records data |
16 // from this input stream. It has an important function that it executes | 16 // from this input stream. It has an important function that it executes |
17 // audio operations like record, pause, stop, etc. on a separate thread. | 17 // audio operations like record, pause, stop, etc. on a separate thread. |
18 // | 18 // |
19 // All the public methods of AudioInputController are non-blocking except | 19 // All the public methods of AudioInputController are non-blocking except |
20 // close, the actual operations are performed on the audio input controller | 20 // close, the actual operations are performed on the audio input controller |
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114 void DoReportError(int code); | 114 void DoReportError(int code); |
115 | 115 |
116 EventHandler* handler_; | 116 EventHandler* handler_; |
117 AudioInputStream* stream_; | 117 AudioInputStream* stream_; |
118 | 118 |
119 // |state_| is written on the audio input controller thread and is read on | 119 // |state_| is written on the audio input controller thread and is read on |
120 // the hardware audio thread. These operations need to be locked. But lock | 120 // the hardware audio thread. These operations need to be locked. But lock |
121 // is not required for reading on the audio input controller thread. | 121 // is not required for reading on the audio input controller thread. |
122 State state_; | 122 State state_; |
123 | 123 |
124 Lock lock_; | 124 base::Lock lock_; |
125 | 125 |
126 // The audio input controller thread that this object runs on. | 126 // The audio input controller thread that this object runs on. |
127 base::Thread thread_; | 127 base::Thread thread_; |
128 | 128 |
129 static Factory* factory_; | 129 static Factory* factory_; |
130 | 130 |
131 DISALLOW_COPY_AND_ASSIGN(AudioInputController); | 131 DISALLOW_COPY_AND_ASSIGN(AudioInputController); |
132 }; | 132 }; |
133 | 133 |
134 } // namespace media | 134 } // namespace media |
135 | 135 |
136 #endif // MEDIA_AUDIO_AUDIO_INPUT_CONTROLLER_H_ | 136 #endif // MEDIA_AUDIO_AUDIO_INPUT_CONTROLLER_H_ |
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