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| 1 // Copyright (c) 2015 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2015 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/browser/renderer_host/media/audio_output_device_enumerator.h" | 5 #include "content/browser/renderer_host/media/audio_output_device_enumerator.h" |
| 6 | 6 |
| 7 #include "base/callback_helpers.h" | 7 #include "base/callback_helpers.h" |
| 8 #include "base/location.h" | 8 #include "base/location.h" |
| 9 #include "base/single_thread_task_runner.h" | 9 #include "base/single_thread_task_runner.h" |
| 10 #include "base/task_runner_util.h" | 10 #include "base/task_runner_util.h" |
| 11 #include "base/thread_task_runner_handle.h" | 11 #include "base/thread_task_runner_handle.h" |
| 12 #include "media/audio/audio_manager_base.h" | 12 #include "media/audio/audio_manager_base.h" |
| 13 | 13 |
| 14 namespace content { | 14 namespace content { |
| 15 | 15 |
| 16 namespace { | 16 namespace { |
| 17 | 17 |
| 18 AudioOutputDeviceEnumeration EnumerateDevicesOnDeviceThread( | 18 AudioOutputDeviceEnumeration EnumerateDevicesOnDeviceThread( |
| 19 media::AudioManager* audio_manager) { | 19 media::AudioManager* audio_manager) { |
| 20 DCHECK(audio_manager->GetWorkerTaskRunner()->BelongsToCurrentThread()); | 20 DCHECK(audio_manager->GetWorkerTaskRunner()->BelongsToCurrentThread()); |
| 21 | 21 |
| 22 AudioOutputDeviceEnumeration snapshot; | 22 AudioOutputDeviceEnumeration snapshot; |
| 23 media::AudioDeviceNames device_names; | 23 media::AudioDeviceNames device_names; |
| 24 audio_manager->GetAudioOutputDeviceNames(&device_names); | 24 audio_manager->GetAudioOutputDeviceNames(&device_names); |
| 25 | 25 |
| 26 // If no devices in enumeration, return a list with a default device | 26 // If no devices in enumeration, return a list with a default device |
| 27 if (device_names.empty()) { | 27 if (device_names.empty()) { |
| 28 snapshot.push_back({media::AudioManagerBase::kDefaultDeviceId, | 28 snapshot.push_back({media::AudioManagerBase::kDefaultDeviceId, |
| 29 media::AudioManagerBase::kDefaultDeviceName, | 29 media::AudioManager::GetDefaultDeviceName(), |
| 30 audio_manager->GetDefaultOutputStreamParameters()}); | 30 audio_manager->GetDefaultOutputStreamParameters()}); |
| 31 return snapshot; | 31 return snapshot; |
| 32 } | 32 } |
| 33 | 33 |
| 34 for (const media::AudioDeviceName& name : device_names) { | 34 for (const media::AudioDeviceName& name : device_names) { |
| 35 snapshot.push_back( | 35 snapshot.push_back( |
| 36 {name.unique_id, name.device_name, | 36 {name.unique_id, name.device_name, |
| 37 name.unique_id == media::AudioManagerBase::kDefaultDeviceId | 37 name.unique_id == media::AudioManagerBase::kDefaultDeviceId |
| 38 ? audio_manager->GetDefaultOutputStreamParameters() | 38 ? audio_manager->GetDefaultOutputStreamParameters() |
| 39 : audio_manager->GetOutputStreamParameters(name.unique_id)}); | 39 : audio_manager->GetOutputStreamParameters(name.unique_id)}); |
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| 125 return ++current_event_sequence_; | 125 return ++current_event_sequence_; |
| 126 } | 126 } |
| 127 | 127 |
| 128 bool AudioOutputDeviceEnumerator::IsLastEnumerationValid() const { | 128 bool AudioOutputDeviceEnumerator::IsLastEnumerationValid() const { |
| 129 DCHECK(thread_checker_.CalledOnValidThread()); | 129 DCHECK(thread_checker_.CalledOnValidThread()); |
| 130 return seq_last_enumeration_ > seq_last_invalidation_ && | 130 return seq_last_enumeration_ > seq_last_invalidation_ && |
| 131 !is_enumeration_ongoing_; | 131 !is_enumeration_ongoing_; |
| 132 } | 132 } |
| 133 | 133 |
| 134 } // namespace content | 134 } // namespace content |
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