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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 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_stream_sink.h" | 5 #include "media/audio/audio_output_stream_sink.h" |
6 | 6 |
| 7 #include <algorithm> |
7 #include <cmath> | 8 #include <cmath> |
8 | 9 |
9 #include "base/bind.h" | 10 #include "base/bind.h" |
10 #include "base/bind_helpers.h" | 11 #include "base/bind_helpers.h" |
11 #include "base/location.h" | 12 #include "base/location.h" |
12 #include "media/audio/audio_manager.h" | 13 #include "media/audio/audio_manager.h" |
| 14 #include "media/base/audio_timestamp_helper.h" |
13 | 15 |
14 namespace media { | 16 namespace media { |
15 | 17 |
16 AudioOutputStreamSink::AudioOutputStreamSink() | 18 AudioOutputStreamSink::AudioOutputStreamSink() |
17 : initialized_(false), | 19 : initialized_(false), |
18 started_(false), | 20 started_(false), |
19 render_callback_(NULL), | 21 render_callback_(NULL), |
20 active_render_callback_(NULL), | 22 active_render_callback_(NULL), |
21 audio_task_runner_(AudioManager::Get()->GetTaskRunner()), | 23 audio_task_runner_(AudioManager::Get()->GetTaskRunner()), |
22 stream_(NULL) {} | 24 stream_(NULL) {} |
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75 | 77 |
76 OutputDeviceInfo AudioOutputStreamSink::GetOutputDeviceInfo() { | 78 OutputDeviceInfo AudioOutputStreamSink::GetOutputDeviceInfo() { |
77 return OutputDeviceInfo(); | 79 return OutputDeviceInfo(); |
78 } | 80 } |
79 | 81 |
80 bool AudioOutputStreamSink::CurrentThreadIsRenderingThread() { | 82 bool AudioOutputStreamSink::CurrentThreadIsRenderingThread() { |
81 NOTIMPLEMENTED(); | 83 NOTIMPLEMENTED(); |
82 return false; | 84 return false; |
83 } | 85 } |
84 | 86 |
85 int AudioOutputStreamSink::OnMoreData(AudioBus* dest, | 87 int AudioOutputStreamSink::OnMoreData(base::TimeDelta delay, |
86 uint32_t total_bytes_delay, | 88 base::TimeTicks /* delay_timestamp */, |
87 uint32_t frames_skipped) { | 89 int prior_frames_skipped, |
| 90 AudioBus* dest) { |
88 // Note: Runs on the audio thread created by the OS. | 91 // Note: Runs on the audio thread created by the OS. |
89 base::AutoLock al(callback_lock_); | 92 base::AutoLock al(callback_lock_); |
90 if (!active_render_callback_) | 93 if (!active_render_callback_) |
91 return 0; | 94 return 0; |
92 | 95 |
93 uint32_t frames_delayed = std::round(static_cast<double>(total_bytes_delay) / | 96 uint32_t frames_delayed = |
94 active_params_.GetBytesPerFrame()); | 97 AudioTimestampHelper::TimeToFrames(delay, active_params_.sample_rate()); |
95 | 98 |
96 return active_render_callback_->Render(dest, frames_delayed, frames_skipped); | 99 return active_render_callback_->Render(dest, frames_delayed, |
| 100 prior_frames_skipped); |
97 } | 101 } |
98 | 102 |
99 void AudioOutputStreamSink::OnError(AudioOutputStream* stream) { | 103 void AudioOutputStreamSink::OnError(AudioOutputStream* stream) { |
100 // Note: Runs on the audio thread created by the OS. | 104 // Note: Runs on the audio thread created by the OS. |
101 base::AutoLock al(callback_lock_); | 105 base::AutoLock al(callback_lock_); |
102 if (active_render_callback_) | 106 if (active_render_callback_) |
103 active_render_callback_->OnRenderError(); | 107 active_render_callback_->OnRenderError(); |
104 } | 108 } |
105 | 109 |
106 void AudioOutputStreamSink::DoStart(const AudioParameters& params) { | 110 void AudioOutputStreamSink::DoStart(const AudioParameters& params) { |
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147 void AudioOutputStreamSink::DoSetVolume(double volume) { | 151 void AudioOutputStreamSink::DoSetVolume(double volume) { |
148 DCHECK(audio_task_runner_->BelongsToCurrentThread()); | 152 DCHECK(audio_task_runner_->BelongsToCurrentThread()); |
149 stream_->SetVolume(volume); | 153 stream_->SetVolume(volume); |
150 } | 154 } |
151 | 155 |
152 void AudioOutputStreamSink::ClearCallback() { | 156 void AudioOutputStreamSink::ClearCallback() { |
153 base::AutoLock al(callback_lock_); | 157 base::AutoLock al(callback_lock_); |
154 active_render_callback_ = NULL; | 158 active_render_callback_ = NULL; |
155 } | 159 } |
156 | 160 |
157 } // namepace media | 161 } // namespace media |
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