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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 Mac OS X using the special AUHAL | 5 // Implementation of AudioInputStream for Mac OS X using the special AUHAL |
| 6 // input Audio Unit present in OS 10.4 and later. | 6 // input Audio Unit present in OS 10.4 and later. |
| 7 // The AUHAL input Audio Unit is for low-latency audio I/O. | 7 // The AUHAL input Audio Unit is for low-latency audio I/O. |
| 8 // | 8 // |
| 9 // Overview of operation: | 9 // Overview of operation: |
| 10 // | 10 // |
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| 44 #include "base/atomicops.h" | 44 #include "base/atomicops.h" |
| 45 #include "base/cancelable_callback.h" | 45 #include "base/cancelable_callback.h" |
| 46 #include "base/macros.h" | 46 #include "base/macros.h" |
| 47 #include "base/memory/scoped_ptr.h" | 47 #include "base/memory/scoped_ptr.h" |
| 48 #include "base/memory/weak_ptr.h" | 48 #include "base/memory/weak_ptr.h" |
| 49 #include "base/threading/thread_checker.h" | 49 #include "base/threading/thread_checker.h" |
| 50 #include "base/time/time.h" | 50 #include "base/time/time.h" |
| 51 #include "base/timer/timer.h" | 51 #include "base/timer/timer.h" |
| 52 #include "media/audio/agc_audio_stream.h" | 52 #include "media/audio/agc_audio_stream.h" |
| 53 #include "media/audio/audio_io.h" | 53 #include "media/audio/audio_io.h" |
| 54 #include "media/audio/audio_parameters.h" | |
| 55 #include "media/base/audio_block_fifo.h" | 54 #include "media/base/audio_block_fifo.h" |
| 55 #include "media/base/audio_parameters.h" |
| 56 | 56 |
| 57 namespace media { | 57 namespace media { |
| 58 | 58 |
| 59 class AudioBus; | 59 class AudioBus; |
| 60 class AudioManagerMac; | 60 class AudioManagerMac; |
| 61 class DataBuffer; | 61 class DataBuffer; |
| 62 | 62 |
| 63 class MEDIA_EXPORT AUAudioInputStream | 63 class MEDIA_EXPORT AUAudioInputStream |
| 64 : public AgcAudioStream<AudioInputStream> { | 64 : public AgcAudioStream<AudioInputStream> { |
| 65 public: | 65 public: |
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| 327 // this object is destroyed. | 327 // this object is destroyed. |
| 328 // Note that, all member variables should appear before the WeakPtrFactory. | 328 // Note that, all member variables should appear before the WeakPtrFactory. |
| 329 base::WeakPtrFactory<AUAudioInputStream> weak_factory_; | 329 base::WeakPtrFactory<AUAudioInputStream> weak_factory_; |
| 330 | 330 |
| 331 DISALLOW_COPY_AND_ASSIGN(AUAudioInputStream); | 331 DISALLOW_COPY_AND_ASSIGN(AUAudioInputStream); |
| 332 }; | 332 }; |
| 333 | 333 |
| 334 } // namespace media | 334 } // namespace media |
| 335 | 335 |
| 336 #endif // MEDIA_AUDIO_MAC_AUDIO_LOW_LATENCY_INPUT_MAC_H_ | 336 #endif // MEDIA_AUDIO_MAC_AUDIO_LOW_LATENCY_INPUT_MAC_H_ |
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