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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" | |
11 #include "media/audio/audio_manager.h" | 10 #include "media/audio/audio_manager.h" |
12 | 11 |
13 // Using base::Unretained for |audio_manager_| is safe since it is deleted after | 12 // 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 | 13 // 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. | 14 // thread has been stopped and before |audio_manager_| deletion is scheduled. |
16 namespace media { | 15 namespace media { |
17 | 16 |
18 namespace { | 17 namespace { |
19 | 18 |
20 AudioParameters GetInputParametersOnDeviceThread(AudioManager* audio_manager, | 19 AudioParameters GetInputParametersOnDeviceThread(AudioManager* audio_manager, |
21 const std::string& device_id) { | 20 const std::string& device_id) { |
22 DCHECK(audio_manager->GetTaskRunner()->BelongsToCurrentThread()); | 21 DCHECK(audio_manager->GetTaskRunner()->BelongsToCurrentThread()); |
23 | 22 |
24 // TODO(olka): remove this when AudioManager::GetInputStreamParameters() | 23 // TODO(olka): remove this when AudioManager::GetInputStreamParameters() |
25 // returns invalid parameters if the device is not found. | 24 // works this way on all the platforms. |
26 if (!audio_manager->HasAudioInputDevices()) | 25 if (!audio_manager->HasAudioInputDevices()) |
27 return AudioParameters(); | 26 return AudioParameters(); |
28 | 27 |
29 return audio_manager->GetInputStreamParameters(device_id); | 28 return audio_manager->GetInputStreamParameters(device_id); |
30 } | 29 } |
31 | 30 |
32 AudioParameters GetOutputParametersOnDeviceThread( | |
33 AudioManager* audio_manager, | |
34 const std::string& device_id) { | |
35 DCHECK(audio_manager->GetTaskRunner()->BelongsToCurrentThread()); | |
36 | |
37 // TODO(olka): remove this when | |
38 // AudioManager::Get[Default]OutputStreamParameters() returns invalid | |
39 // parameters if the device is not found. | |
40 if (!audio_manager->HasAudioOutputDevices()) | |
41 return AudioParameters(); | |
42 | |
43 return media::AudioDeviceDescription::IsDefaultDevice(device_id) | |
44 ? audio_manager->GetDefaultOutputStreamParameters() | |
45 : audio_manager->GetOutputStreamParameters(device_id); | |
46 } | |
47 | |
48 } // namespace | 31 } // namespace |
49 | 32 |
50 AudioSystemImpl::AudioSystemImpl(AudioManager* audio_manager) | 33 AudioSystemImpl::AudioSystemImpl(AudioManager* audio_manager) |
51 : audio_manager_(audio_manager) { | 34 : audio_manager_(audio_manager) { |
52 DCHECK(audio_manager_); | 35 DCHECK(audio_manager_); |
53 AudioSystem::SetInstance(this); | 36 AudioSystem::SetInstance(this); |
54 } | 37 } |
55 | 38 |
56 AudioSystemImpl::~AudioSystemImpl() { | 39 AudioSystemImpl::~AudioSystemImpl() { |
57 AudioSystem::ClearInstance(this); | 40 AudioSystem::ClearInstance(this); |
(...skipping 14 matching lines...) Expand all Loading... |
72 audio_manager_, device_id))); | 55 audio_manager_, device_id))); |
73 return; | 56 return; |
74 } | 57 } |
75 base::PostTaskAndReplyWithResult( | 58 base::PostTaskAndReplyWithResult( |
76 GetTaskRunner(), FROM_HERE, | 59 GetTaskRunner(), FROM_HERE, |
77 base::Bind(&GetInputParametersOnDeviceThread, | 60 base::Bind(&GetInputParametersOnDeviceThread, |
78 base::Unretained(audio_manager_), device_id), | 61 base::Unretained(audio_manager_), device_id), |
79 std::move(on_params_cb)); | 62 std::move(on_params_cb)); |
80 } | 63 } |
81 | 64 |
82 void AudioSystemImpl::GetOutputStreamParameters( | |
83 const std::string& device_id, | |
84 OnAudioParamsCallback on_params_cb) const { | |
85 if (GetTaskRunner()->BelongsToCurrentThread()) { | |
86 GetTaskRunner()->PostTask( | |
87 FROM_HERE, base::Bind(on_params_cb, GetOutputParametersOnDeviceThread( | |
88 audio_manager_, device_id))); | |
89 return; | |
90 } | |
91 base::PostTaskAndReplyWithResult( | |
92 GetTaskRunner(), FROM_HERE, | |
93 base::Bind(&GetOutputParametersOnDeviceThread, | |
94 base::Unretained(audio_manager_), device_id), | |
95 std::move(on_params_cb)); | |
96 } | |
97 | |
98 void AudioSystemImpl::HasInputDevices(OnBoolCallback on_has_devices_cb) const { | 65 void AudioSystemImpl::HasInputDevices(OnBoolCallback on_has_devices_cb) const { |
99 if (GetTaskRunner()->BelongsToCurrentThread()) { | 66 if (GetTaskRunner()->BelongsToCurrentThread()) { |
100 GetTaskRunner()->PostTask( | 67 GetTaskRunner()->PostTask( |
101 FROM_HERE, | 68 FROM_HERE, |
102 base::Bind(on_has_devices_cb, audio_manager_->HasAudioInputDevices())); | 69 base::Bind(on_has_devices_cb, audio_manager_->HasAudioInputDevices())); |
103 return; | 70 return; |
104 } | 71 } |
105 base::PostTaskAndReplyWithResult( | 72 base::PostTaskAndReplyWithResult( |
106 GetTaskRunner(), FROM_HERE, | 73 GetTaskRunner(), FROM_HERE, |
107 base::Bind(&AudioManager::HasAudioInputDevices, | 74 base::Bind(&AudioManager::HasAudioInputDevices, |
108 base::Unretained(audio_manager_)), | 75 base::Unretained(audio_manager_)), |
109 std::move(on_has_devices_cb)); | 76 std::move(on_has_devices_cb)); |
110 } | 77 } |
111 | 78 |
112 AudioManager* AudioSystemImpl::GetAudioManager() const { | 79 AudioManager* AudioSystemImpl::GetAudioManager() const { |
113 return audio_manager_; | 80 return audio_manager_; |
114 } | 81 } |
115 | 82 |
116 base::SingleThreadTaskRunner* AudioSystemImpl::GetTaskRunner() const { | 83 base::SingleThreadTaskRunner* AudioSystemImpl::GetTaskRunner() const { |
117 return audio_manager_->GetTaskRunner(); | 84 return audio_manager_->GetTaskRunner(); |
118 } | 85 } |
119 | 86 |
120 } // namespace media | 87 } // namespace media |
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