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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 "content/renderer/pepper/pepper_platform_audio_output_impl.h" | 5 #include "content/renderer/pepper/pepper_platform_audio_output_impl.h" |
6 | 6 |
7 #include "base/bind.h" | 7 #include "base/bind.h" |
8 #include "base/logging.h" | 8 #include "base/logging.h" |
9 #include "base/message_loop_proxy.h" | 9 #include "base/message_loop_proxy.h" |
10 #include "build/build_config.h" | 10 #include "build/build_config.h" |
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88 // Use the low latency back end if the client request is compatible, and | 88 // Use the low latency back end if the client request is compatible, and |
89 // the sample count is low enough to justify using AUDIO_PCM_LOW_LATENCY. | 89 // the sample count is low enough to justify using AUDIO_PCM_LOW_LATENCY. |
90 if (sample_rate == audio_hardware::GetOutputSampleRate() && | 90 if (sample_rate == audio_hardware::GetOutputSampleRate() && |
91 frames_per_buffer <= kMaxFramesForLowLatency && | 91 frames_per_buffer <= kMaxFramesForLowLatency && |
92 frames_per_buffer % audio_hardware::GetOutputBufferSize() == 0) { | 92 frames_per_buffer % audio_hardware::GetOutputBufferSize() == 0) { |
93 format = AudioParameters::AUDIO_PCM_LOW_LATENCY; | 93 format = AudioParameters::AUDIO_PCM_LOW_LATENCY; |
94 } else { | 94 } else { |
95 format = AudioParameters::AUDIO_PCM_LINEAR; | 95 format = AudioParameters::AUDIO_PCM_LINEAR; |
96 } | 96 } |
97 | 97 |
98 AudioParameters params(format, CHANNEL_LAYOUT_STEREO, sample_rate, | 98 AudioParameters params(format, false, CHANNEL_LAYOUT_STEREO, sample_rate, |
99 16, frames_per_buffer); | 99 16, frames_per_buffer); |
100 | 100 |
101 ChildProcess::current()->io_message_loop()->PostTask( | 101 ChildProcess::current()->io_message_loop()->PostTask( |
102 FROM_HERE, | 102 FROM_HERE, |
103 base::Bind(&PepperPlatformAudioOutputImpl::InitializeOnIOThread, | 103 base::Bind(&PepperPlatformAudioOutputImpl::InitializeOnIOThread, |
104 this, params)); | 104 this, params)); |
105 return true; | 105 return true; |
106 } | 106 } |
107 | 107 |
108 void PepperPlatformAudioOutputImpl::InitializeOnIOThread( | 108 void PepperPlatformAudioOutputImpl::InitializeOnIOThread( |
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154 // Must dereference the client only on the main thread. Shutdown may have | 154 // Must dereference the client only on the main thread. Shutdown may have |
155 // occurred while the request was in-flight, so we need to NULL check. | 155 // occurred while the request was in-flight, so we need to NULL check. |
156 if (client_) | 156 if (client_) |
157 client_->StreamCreated(handle, length, socket_handle); | 157 client_->StreamCreated(handle, length, socket_handle); |
158 } else { | 158 } else { |
159 main_message_loop_proxy_->PostTask(FROM_HERE, | 159 main_message_loop_proxy_->PostTask(FROM_HERE, |
160 base::Bind(&PepperPlatformAudioOutputImpl::OnStreamCreated, this, | 160 base::Bind(&PepperPlatformAudioOutputImpl::OnStreamCreated, this, |
161 handle, socket_handle, length)); | 161 handle, socket_handle, length)); |
162 } | 162 } |
163 } | 163 } |
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