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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 MEDIA_AUDIO_SIMPLE_SOURCES_H_ | 5 #ifndef MEDIA_AUDIO_SIMPLE_SOURCES_H_ |
6 #define MEDIA_AUDIO_SIMPLE_SOURCES_H_ | 6 #define MEDIA_AUDIO_SIMPLE_SOURCES_H_ |
7 | 7 |
8 #include "base/synchronization/lock.h" | 8 #include "base/synchronization/lock.h" |
9 #include "media/audio/audio_io.h" | 9 #include "media/audio/audio_io.h" |
10 #include "media/base/seekable_buffer.h" | 10 #include "media/base/seekable_buffer.h" |
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21 SineWaveAudioSource(int channels, double freq, double sample_freq); | 21 SineWaveAudioSource(int channels, double freq, double sample_freq); |
22 virtual ~SineWaveAudioSource() {} | 22 virtual ~SineWaveAudioSource() {} |
23 | 23 |
24 // Return up to |cap| samples of data via OnMoreData(). Use Reset() to | 24 // Return up to |cap| samples of data via OnMoreData(). Use Reset() to |
25 // allow more data to be served. | 25 // allow more data to be served. |
26 void CapSamples(int cap); | 26 void CapSamples(int cap); |
27 void Reset(); | 27 void Reset(); |
28 | 28 |
29 // Implementation of AudioSourceCallback. | 29 // Implementation of AudioSourceCallback. |
30 virtual int OnMoreData(AudioBus* audio_bus, | 30 virtual int OnMoreData(AudioBus* audio_bus, |
31 uint32 total_bytes_delay) OVERRIDE; | 31 uint32 total_bytes_delay) override; |
32 virtual void OnError(AudioOutputStream* stream) OVERRIDE; | 32 virtual void OnError(AudioOutputStream* stream) override; |
33 | 33 |
34 // The number of OnMoreData() and OnError() calls respectively. | 34 // The number of OnMoreData() and OnError() calls respectively. |
35 int callbacks() { return callbacks_; } | 35 int callbacks() { return callbacks_; } |
36 int errors() { return errors_; } | 36 int errors() { return errors_; } |
37 | 37 |
38 protected: | 38 protected: |
39 int channels_; | 39 int channels_; |
40 double f_; | 40 double f_; |
41 int time_state_; | 41 int time_state_; |
42 int cap_; | 42 int cap_; |
43 int callbacks_; | 43 int callbacks_; |
44 int errors_; | 44 int errors_; |
45 base::Lock time_lock_; | 45 base::Lock time_lock_; |
46 }; | 46 }; |
47 | 47 |
48 } // namespace media | 48 } // namespace media |
49 | 49 |
50 #endif // MEDIA_AUDIO_SIMPLE_SOURCES_H_ | 50 #endif // MEDIA_AUDIO_SIMPLE_SOURCES_H_ |
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