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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 #include "media/audio/audio_output_device.h" | 5 #include "media/audio/audio_output_device.h" |
| 6 | 6 |
| 7 #include "base/basictypes.h" | 7 #include "base/basictypes.h" |
| 8 #include "base/debug/trace_event.h" | |
| 9 #include "base/threading/thread_restrictions.h" | 8 #include "base/threading/thread_restrictions.h" |
| 10 #include "base/time/time.h" | 9 #include "base/time/time.h" |
| 10 #include "base/trace_event/trace_event.h" |
| 11 #include "media/audio/audio_output_controller.h" | 11 #include "media/audio/audio_output_controller.h" |
| 12 #include "media/base/limits.h" | 12 #include "media/base/limits.h" |
| 13 | 13 |
| 14 namespace media { | 14 namespace media { |
| 15 | 15 |
| 16 // Takes care of invoking the render callback on the audio thread. | 16 // Takes care of invoking the render callback on the audio thread. |
| 17 // An instance of this class is created for each capture stream in | 17 // An instance of this class is created for each capture stream in |
| 18 // OnStreamCreated(). | 18 // OnStreamCreated(). |
| 19 class AudioOutputDevice::AudioThreadCallback | 19 class AudioOutputDevice::AudioThreadCallback |
| 20 : public AudioDeviceThread::Callback { | 20 : public AudioDeviceThread::Callback { |
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| 291 | 291 |
| 292 TRACE_EVENT0("audio", "AudioOutputDevice::FireRenderCallback"); | 292 TRACE_EVENT0("audio", "AudioOutputDevice::FireRenderCallback"); |
| 293 | 293 |
| 294 // Update the audio-delay measurement then ask client to render audio. Since | 294 // Update the audio-delay measurement then ask client to render audio. Since |
| 295 // |output_bus_| is wrapping the shared memory the Render() call is writing | 295 // |output_bus_| is wrapping the shared memory the Render() call is writing |
| 296 // directly into the shared memory. | 296 // directly into the shared memory. |
| 297 render_callback_->Render(output_bus_.get(), audio_delay_milliseconds); | 297 render_callback_->Render(output_bus_.get(), audio_delay_milliseconds); |
| 298 } | 298 } |
| 299 | 299 |
| 300 } // namespace media. | 300 } // namespace media. |
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