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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 <stddef.h> | 7 #include <stddef.h> |
| 8 #include <stdint.h> | 8 #include <stdint.h> |
| 9 | 9 |
| 10 #include <cmath> | 10 #include <cmath> |
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| 475 if (callback_num_ == 2) { | 475 if (callback_num_ == 2) { |
| 476 TRACE_EVENT_ASYNC_END0("audio", "StartingPlayback", this); | 476 TRACE_EVENT_ASYNC_END0("audio", "StartingPlayback", this); |
| 477 } | 477 } |
| 478 | 478 |
| 479 // Read and reset the number of frames skipped. | 479 // Read and reset the number of frames skipped. |
| 480 AudioOutputBuffer* buffer = | 480 AudioOutputBuffer* buffer = |
| 481 reinterpret_cast<AudioOutputBuffer*>(shared_memory_.memory()); | 481 reinterpret_cast<AudioOutputBuffer*>(shared_memory_.memory()); |
| 482 uint32_t frames_skipped = buffer->params.frames_skipped; | 482 uint32_t frames_skipped = buffer->params.frames_skipped; |
| 483 buffer->params.frames_skipped = 0; | 483 buffer->params.frames_skipped = 0; |
| 484 | 484 |
| 485 DVLOG(4) << __FUNCTION__ << " pending_data:" << pending_data | 485 DVLOG(4) << __func__ << " pending_data:" << pending_data |
| 486 << " frames_delayed(pre-round):" << frames_delayed | 486 << " frames_delayed(pre-round):" << frames_delayed |
| 487 << " frames_skipped:" << frames_skipped; | 487 << " frames_skipped:" << frames_skipped; |
| 488 | 488 |
| 489 // Update the audio-delay measurement, inform about the number of skipped | 489 // Update the audio-delay measurement, inform about the number of skipped |
| 490 // frames, and ask client to render audio. Since |output_bus_| is wrapping | 490 // frames, and ask client to render audio. Since |output_bus_| is wrapping |
| 491 // the shared memory the Render() call is writing directly into the shared | 491 // the shared memory the Render() call is writing directly into the shared |
| 492 // memory. | 492 // memory. |
| 493 render_callback_->Render(output_bus_.get(), std::round(frames_delayed), | 493 render_callback_->Render(output_bus_.get(), std::round(frames_delayed), |
| 494 frames_skipped); | 494 frames_skipped); |
| 495 } | 495 } |
| 496 | 496 |
| 497 bool AudioOutputDevice::AudioThreadCallback:: | 497 bool AudioOutputDevice::AudioThreadCallback:: |
| 498 CurrentThreadIsAudioDeviceThread() { | 498 CurrentThreadIsAudioDeviceThread() { |
| 499 return thread_checker_.CalledOnValidThread(); | 499 return thread_checker_.CalledOnValidThread(); |
| 500 } | 500 } |
| 501 | 501 |
| 502 } // namespace media | 502 } // namespace media |
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