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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/fake_audio_output_stream.h" | 5 #include "media/audio/fake_audio_output_stream.h" |
6 | 6 |
7 #include "base/at_exit.h" | 7 #include "base/at_exit.h" |
8 #include "base/logging.h" | 8 #include "base/logging.h" |
9 #include "media/audio/audio_manager_base.h" | 9 #include "media/audio/audio_manager_base.h" |
10 | 10 |
11 FakeAudioOutputStream* FakeAudioOutputStream::current_fake_stream_ = NULL; | 11 FakeAudioOutputStream* FakeAudioOutputStream::current_fake_stream_ = NULL; |
12 | 12 |
13 // static | 13 // static |
14 AudioOutputStream* FakeAudioOutputStream::MakeFakeStream( | 14 AudioOutputStream* FakeAudioOutputStream::MakeFakeStream( |
15 AudioManagerBase* manager, | 15 AudioManagerBase* manager, |
16 const AudioParameters& params) { | 16 const AudioParameters& params) { |
17 FakeAudioOutputStream* new_stream = new FakeAudioOutputStream(manager, | 17 FakeAudioOutputStream* new_stream = new FakeAudioOutputStream(manager, |
18 params); | 18 params); |
19 DCHECK(current_fake_stream_ == NULL); | 19 DCHECK(current_fake_stream_ == NULL); |
20 current_fake_stream_ = new_stream; | 20 current_fake_stream_ = new_stream; |
21 return new_stream; | 21 return new_stream; |
22 } | 22 } |
23 | 23 |
24 bool FakeAudioOutputStream::Open() { | 24 bool FakeAudioOutputStream::Open() { |
25 if (packet_size_ < sizeof(int16)) | 25 if (bytes_per_buffer_ < sizeof(int16)) |
26 return false; | 26 return false; |
27 buffer_.reset(new uint8[packet_size_]); | 27 buffer_.reset(new uint8[bytes_per_buffer_]); |
28 return true; | 28 return true; |
29 } | 29 } |
30 | 30 |
31 // static | 31 // static |
32 FakeAudioOutputStream* FakeAudioOutputStream::GetCurrentFakeStream() { | 32 FakeAudioOutputStream* FakeAudioOutputStream::GetCurrentFakeStream() { |
33 return current_fake_stream_; | 33 return current_fake_stream_; |
34 } | 34 } |
35 | 35 |
36 void FakeAudioOutputStream::Start(AudioSourceCallback* callback) { | 36 void FakeAudioOutputStream::Start(AudioSourceCallback* callback) { |
37 callback_ = callback; | 37 callback_ = callback; |
38 memset(buffer_.get(), 0, packet_size_); | 38 memset(buffer_.get(), 0, bytes_per_buffer_); |
39 callback_->OnMoreData(this, buffer_.get(), packet_size_, | 39 callback_->OnMoreData(this, buffer_.get(), bytes_per_buffer_, |
40 AudioBuffersState(0, 0)); | 40 AudioBuffersState(0, 0)); |
41 } | 41 } |
42 | 42 |
43 void FakeAudioOutputStream::Stop() { | 43 void FakeAudioOutputStream::Stop() { |
44 callback_ = NULL; | 44 callback_ = NULL; |
45 } | 45 } |
46 | 46 |
47 void FakeAudioOutputStream::SetVolume(double volume) { | 47 void FakeAudioOutputStream::SetVolume(double volume) { |
48 volume_ = volume; | 48 volume_ = volume; |
49 } | 49 } |
50 | 50 |
51 void FakeAudioOutputStream::GetVolume(double* volume) { | 51 void FakeAudioOutputStream::GetVolume(double* volume) { |
52 *volume = volume_; | 52 *volume = volume_; |
53 } | 53 } |
54 | 54 |
55 void FakeAudioOutputStream::Close() { | 55 void FakeAudioOutputStream::Close() { |
56 closed_ = true; | 56 closed_ = true; |
57 audio_manager_->ReleaseOutputStream(this); | 57 audio_manager_->ReleaseOutputStream(this); |
58 } | 58 } |
59 | 59 |
60 FakeAudioOutputStream::FakeAudioOutputStream(AudioManagerBase* manager, | 60 FakeAudioOutputStream::FakeAudioOutputStream(AudioManagerBase* manager, |
61 const AudioParameters& params) | 61 const AudioParameters& params) |
62 : audio_manager_(manager), | 62 : audio_manager_(manager), |
63 volume_(0), | 63 volume_(0), |
64 callback_(NULL), | 64 callback_(NULL), |
65 packet_size_(params.GetPacketSize()), | 65 bytes_per_buffer_(params.GetBytesPerBuffer()), |
66 closed_(false) { | 66 closed_(false) { |
67 } | 67 } |
68 | 68 |
69 FakeAudioOutputStream::~FakeAudioOutputStream() { | 69 FakeAudioOutputStream::~FakeAudioOutputStream() { |
70 if (current_fake_stream_ == this) | 70 if (current_fake_stream_ == this) |
71 current_fake_stream_ = NULL; | 71 current_fake_stream_ = NULL; |
72 } | 72 } |
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