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957318ceaf
This change fixes recursive locking going on in the Linux Pulse and ALSA audio device managers. Bug: webrtc:11866 Change-Id: Ia7b7b82e7f1f2a92c2f99e07a7079632499354ca Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/182020 Reviewed-by: Henrik Andreassson <henrika@webrtc.org> Commit-Queue: Markus Handell <handellm@webrtc.org> Cr-Commit-Position: refs/heads/master@{#31968}
71 lines
2.8 KiB
C++
71 lines
2.8 KiB
C++
/*
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* Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef AUDIO_DEVICE_AUDIO_MIXER_MANAGER_ALSA_LINUX_H_
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#define AUDIO_DEVICE_AUDIO_MIXER_MANAGER_ALSA_LINUX_H_
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#include <alsa/asoundlib.h>
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#include "modules/audio_device/include/audio_device.h"
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#include "modules/audio_device/linux/alsasymboltable_linux.h"
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#include "rtc_base/synchronization/mutex.h"
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namespace webrtc {
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class AudioMixerManagerLinuxALSA {
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public:
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int32_t OpenSpeaker(char* deviceName) RTC_LOCKS_EXCLUDED(mutex_);
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int32_t OpenMicrophone(char* deviceName) RTC_LOCKS_EXCLUDED(mutex_);
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int32_t SetSpeakerVolume(uint32_t volume) RTC_LOCKS_EXCLUDED(mutex_);
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int32_t SpeakerVolume(uint32_t& volume) const;
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int32_t MaxSpeakerVolume(uint32_t& maxVolume) const;
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int32_t MinSpeakerVolume(uint32_t& minVolume) const;
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int32_t SpeakerVolumeIsAvailable(bool& available);
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int32_t SpeakerMuteIsAvailable(bool& available);
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int32_t SetSpeakerMute(bool enable) RTC_LOCKS_EXCLUDED(mutex_);
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int32_t SpeakerMute(bool& enabled) const;
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int32_t MicrophoneMuteIsAvailable(bool& available);
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int32_t SetMicrophoneMute(bool enable) RTC_LOCKS_EXCLUDED(mutex_);
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int32_t MicrophoneMute(bool& enabled) const;
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int32_t MicrophoneVolumeIsAvailable(bool& available);
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int32_t SetMicrophoneVolume(uint32_t volume) RTC_LOCKS_EXCLUDED(mutex_);
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int32_t MicrophoneVolume(uint32_t& volume) const;
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int32_t MaxMicrophoneVolume(uint32_t& maxVolume) const;
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int32_t MinMicrophoneVolume(uint32_t& minVolume) const;
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int32_t Close() RTC_LOCKS_EXCLUDED(mutex_);
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int32_t CloseSpeaker() RTC_LOCKS_EXCLUDED(mutex_);
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int32_t CloseMicrophone() RTC_LOCKS_EXCLUDED(mutex_);
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bool SpeakerIsInitialized() const;
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bool MicrophoneIsInitialized() const;
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public:
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AudioMixerManagerLinuxALSA();
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~AudioMixerManagerLinuxALSA();
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private:
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int32_t CloseSpeakerLocked() RTC_EXCLUSIVE_LOCKS_REQUIRED(mutex_);
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int32_t CloseMicrophoneLocked() RTC_EXCLUSIVE_LOCKS_REQUIRED(mutex_);
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int32_t LoadMicMixerElement() const;
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int32_t LoadSpeakerMixerElement() const;
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void GetControlName(char* controlName, char* deviceName) const;
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private:
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Mutex mutex_;
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mutable snd_mixer_t* _outputMixerHandle;
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char _outputMixerStr[kAdmMaxDeviceNameSize];
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mutable snd_mixer_t* _inputMixerHandle;
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char _inputMixerStr[kAdmMaxDeviceNameSize];
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mutable snd_mixer_elem_t* _outputMixerElement;
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mutable snd_mixer_elem_t* _inputMixerElement;
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};
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} // namespace webrtc
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#endif // MODULES_AUDIO_DEVICE_MAIN_SOURCE_LINUX_AUDIO_MIXER_MANAGER_ALSA_LINUX_H_
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