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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/null_audio_sink.h" | 5 #include "media/audio/null_audio_sink.h" |
6 | 6 |
7 #include "base/bind.h" | 7 #include "base/bind.h" |
8 #include "base/threading/platform_thread.h" | 8 #include "base/threading/platform_thread.h" |
9 | 9 |
10 namespace media { | 10 namespace media { |
11 | 11 |
12 NullAudioSink::NullAudioSink() | 12 NullAudioSink::NullAudioSink() |
13 : initialized_(false), | 13 : initialized_(false), |
14 playback_rate_(0.0), | 14 playback_rate_(0.0), |
15 playing_(false), | 15 playing_(false), |
16 callback_(NULL), | 16 callback_(NULL), |
17 thread_("NullAudioThread") { | 17 thread_("NullAudioThread") { |
18 } | 18 } |
19 | 19 |
20 NullAudioSink::~NullAudioSink() { | 20 NullAudioSink::~NullAudioSink() { |
21 DCHECK(!thread_.IsRunning()); | 21 DCHECK(!thread_.IsRunning()); |
22 for (size_t i = 0; i < audio_data_.size(); ++i) | 22 for (size_t i = 0; i < audio_data_.size(); ++i) |
23 delete [] audio_data_[i]; | 23 delete [] audio_data_[i]; |
24 } | 24 } |
25 | 25 |
26 | |
27 void NullAudioSink::Start() { | 26 void NullAudioSink::Start() { |
28 if (!thread_.Start()) | 27 if (!thread_.Start()) |
29 return; | 28 return; |
30 | 29 |
31 thread_.message_loop()->PostTask(FROM_HERE, base::Bind( | 30 thread_.message_loop()->PostTask(FROM_HERE, base::Bind( |
32 &NullAudioSink::FillBufferTask, this)); | 31 &NullAudioSink::FillBufferTask, this)); |
33 } | 32 } |
34 | 33 |
35 void NullAudioSink::Stop() { | 34 void NullAudioSink::Stop() { |
36 SetPlaying(false); | 35 SetPlaying(false); |
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101 } | 100 } |
102 | 101 |
103 // Sleep for at least one millisecond so we don't spin the CPU. | 102 // Sleep for at least one millisecond so we don't spin the CPU. |
104 MessageLoop::current()->PostDelayedTask( | 103 MessageLoop::current()->PostDelayedTask( |
105 FROM_HERE, | 104 FROM_HERE, |
106 base::Bind(&NullAudioSink::FillBufferTask, this), | 105 base::Bind(&NullAudioSink::FillBufferTask, this), |
107 std::max(delay, base::TimeDelta::FromMilliseconds(1))); | 106 std::max(delay, base::TimeDelta::FromMilliseconds(1))); |
108 } | 107 } |
109 | 108 |
110 } // namespace media | 109 } // namespace media |
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