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1 // Copyright 2017 The Chromium Authors. All rights reserved. | 1 // Copyright 2017 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_system_impl.h" | 5 #include "media/audio/audio_system_impl.h" |
6 | 6 |
7 #include "base/memory/ptr_util.h" | 7 #include "base/memory/ptr_util.h" |
8 #include "base/single_thread_task_runner.h" | 8 #include "base/single_thread_task_runner.h" |
9 #include "base/task_runner_util.h" | 9 #include "base/task_runner_util.h" |
10 #include "media/audio/audio_device_description.h" | 10 #include "media/audio/audio_device_description.h" |
11 #include "media/audio/audio_manager.h" | 11 #include "media/audio/audio_manager.h" |
| 12 #include "media/base/bind_to_current_loop.h" |
12 | 13 |
13 // Using base::Unretained for |audio_manager_| is safe since it is deleted after | 14 // Using base::Unretained for |audio_manager_| is safe since it is deleted after |
14 // its task runner, and AudioSystemImpl is deleted on the UI thread after the IO | 15 // its task runner, and AudioSystemImpl is deleted on the UI thread after the IO |
15 // thread has been stopped and before |audio_manager_| deletion is scheduled. | 16 // thread has been stopped and before |audio_manager_| deletion is scheduled. |
16 namespace media { | 17 namespace media { |
17 | 18 |
18 namespace { | 19 namespace { |
19 | 20 |
20 AudioParameters GetInputParametersOnDeviceThread(AudioManager* audio_manager, | 21 AudioParameters GetInputParametersOnDeviceThread(AudioManager* audio_manager, |
21 const std::string& device_id) { | 22 const std::string& device_id) { |
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50 bool for_input) { | 51 bool for_input) { |
51 DCHECK(audio_manager->GetTaskRunner()->BelongsToCurrentThread()); | 52 DCHECK(audio_manager->GetTaskRunner()->BelongsToCurrentThread()); |
52 AudioDeviceDescriptions descriptions; | 53 AudioDeviceDescriptions descriptions; |
53 if (for_input) | 54 if (for_input) |
54 audio_manager->GetAudioInputDeviceDescriptions(&descriptions); | 55 audio_manager->GetAudioInputDeviceDescriptions(&descriptions); |
55 else | 56 else |
56 audio_manager->GetAudioOutputDeviceDescriptions(&descriptions); | 57 audio_manager->GetAudioOutputDeviceDescriptions(&descriptions); |
57 return descriptions; | 58 return descriptions; |
58 } | 59 } |
59 | 60 |
| 61 void GetInputDeviceInfoOnDeviceThread( |
| 62 AudioManager* audio_manager, |
| 63 const std::string& input_device_id, |
| 64 AudioSystem::OnInputDeviceInfoCallback on_input_device_info_cb) { |
| 65 DCHECK(audio_manager->GetTaskRunner()->BelongsToCurrentThread()); |
| 66 const std::string associated_output_device_id = |
| 67 audio_manager->GetAssociatedOutputDeviceID(input_device_id); |
| 68 |
| 69 on_input_device_info_cb.Run( |
| 70 GetInputParametersOnDeviceThread(audio_manager, input_device_id), |
| 71 associated_output_device_id.empty() |
| 72 ? AudioParameters() |
| 73 : GetOutputParametersOnDeviceThread(audio_manager, |
| 74 associated_output_device_id), |
| 75 associated_output_device_id); |
| 76 } |
| 77 |
60 } // namespace | 78 } // namespace |
61 | 79 |
62 AudioSystemImpl::AudioSystemImpl(AudioManager* audio_manager) | 80 AudioSystemImpl::AudioSystemImpl(AudioManager* audio_manager) |
63 : audio_manager_(audio_manager) { | 81 : audio_manager_(audio_manager) { |
64 DCHECK(audio_manager_); | 82 DCHECK(audio_manager_); |
65 AudioSystem::SetInstance(this); | 83 AudioSystem::SetInstance(this); |
66 } | 84 } |
67 | 85 |
68 AudioSystemImpl::~AudioSystemImpl() { | 86 AudioSystemImpl::~AudioSystemImpl() { |
69 AudioSystem::ClearInstance(this); | 87 AudioSystem::ClearInstance(this); |
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129 return; | 147 return; |
130 } | 148 } |
131 base::PostTaskAndReplyWithResult( | 149 base::PostTaskAndReplyWithResult( |
132 GetTaskRunner(), FROM_HERE, | 150 GetTaskRunner(), FROM_HERE, |
133 base::Bind(&AudioManager::HasAudioOutputDevices, | 151 base::Bind(&AudioManager::HasAudioOutputDevices, |
134 base::Unretained(audio_manager_)), | 152 base::Unretained(audio_manager_)), |
135 std::move(on_has_devices_cb)); | 153 std::move(on_has_devices_cb)); |
136 } | 154 } |
137 | 155 |
138 void AudioSystemImpl::GetDeviceDescriptions( | 156 void AudioSystemImpl::GetDeviceDescriptions( |
139 OnDeviceDescriptionsCallback on_descriptions_cp, | 157 OnDeviceDescriptionsCallback on_descriptions_cb, |
140 bool for_input) { | 158 bool for_input) { |
141 if (GetTaskRunner()->BelongsToCurrentThread()) { | 159 if (GetTaskRunner()->BelongsToCurrentThread()) { |
142 GetTaskRunner()->PostTask( | 160 GetTaskRunner()->PostTask( |
143 FROM_HERE, base::Bind(on_descriptions_cp, | 161 FROM_HERE, base::Bind(on_descriptions_cb, |
144 base::Passed(GetDeviceDescriptionsOnDeviceThread( | 162 base::Passed(GetDeviceDescriptionsOnDeviceThread( |
145 audio_manager_, for_input)))); | 163 audio_manager_, for_input)))); |
146 return; | 164 return; |
147 } | 165 } |
148 | 166 |
149 base::PostTaskAndReplyWithResult( | 167 base::PostTaskAndReplyWithResult( |
150 GetTaskRunner(), FROM_HERE, | 168 GetTaskRunner(), FROM_HERE, |
151 base::Bind(&GetDeviceDescriptionsOnDeviceThread, | 169 base::Bind(&GetDeviceDescriptionsOnDeviceThread, |
152 base::Unretained(audio_manager_), for_input), | 170 base::Unretained(audio_manager_), for_input), |
153 std::move(on_descriptions_cp)); | 171 std::move(on_descriptions_cb)); |
154 } | 172 } |
155 | 173 |
156 AudioManager* AudioSystemImpl::GetAudioManager() const { | 174 void AudioSystemImpl::GetAssociatedOutputDeviceID( |
157 return audio_manager_; | 175 const std::string& input_device_id, |
| 176 OnDeviceIdCallback on_device_id_cb) { |
| 177 if (GetTaskRunner()->BelongsToCurrentThread()) { |
| 178 GetTaskRunner()->PostTask( |
| 179 FROM_HERE, |
| 180 base::Bind(on_device_id_cb, audio_manager_->GetAssociatedOutputDeviceID( |
| 181 input_device_id))); |
| 182 return; |
| 183 } |
| 184 base::PostTaskAndReplyWithResult( |
| 185 GetTaskRunner(), FROM_HERE, |
| 186 base::Bind(&AudioManager::GetAssociatedOutputDeviceID, |
| 187 base::Unretained(audio_manager_), input_device_id), |
| 188 std::move(on_device_id_cb)); |
| 189 } |
| 190 |
| 191 void AudioSystemImpl::GetInputDeviceInfo( |
| 192 const std::string& input_device_id, |
| 193 OnInputDeviceInfoCallback on_input_device_info_cb) { |
| 194 // No need to bind |on_input_device_info_cb| to the current loop if we are on |
| 195 // the audio thread. However, the client still expect to receive the reply |
| 196 // asynchronously, so we always post GetInputDeviceInfoOnDeviceThread(), which |
| 197 // will syncronously call the (bound to current loop or not) callback. |
| 198 GetTaskRunner()->PostTask( |
| 199 FROM_HERE, base::Bind(&GetInputDeviceInfoOnDeviceThread, |
| 200 base::Unretained(audio_manager_), input_device_id, |
| 201 GetTaskRunner()->BelongsToCurrentThread() |
| 202 ? std::move(on_input_device_info_cb) |
| 203 : media::BindToCurrentLoop( |
| 204 std::move(on_input_device_info_cb)))); |
158 } | 205 } |
159 | 206 |
160 base::SingleThreadTaskRunner* AudioSystemImpl::GetTaskRunner() const { | 207 base::SingleThreadTaskRunner* AudioSystemImpl::GetTaskRunner() const { |
161 return audio_manager_->GetTaskRunner(); | 208 return audio_manager_->GetTaskRunner(); |
162 } | 209 } |
163 | 210 |
164 } // namespace media | 211 } // namespace media |
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