blob: 532b66a99fc355a138b68b27cf9c1ad5e4598b08 [file] [log] [blame]
/*
* Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#ifndef WEBRTC_AUDIO_DEVICE_AUDIO_MIXER_MANAGER_ALSA_LINUX_H
#define WEBRTC_AUDIO_DEVICE_AUDIO_MIXER_MANAGER_ALSA_LINUX_H
#include "webrtc/modules/audio_device/include/audio_device.h"
#include "webrtc/modules/audio_device/linux/alsasymboltable_linux.h"
#include "webrtc/rtc_base/criticalsection.h"
#include "webrtc/typedefs.h"
#include <alsa/asoundlib.h>
namespace webrtc
{
class AudioMixerManagerLinuxALSA
{
public:
int32_t OpenSpeaker(char* deviceName);
int32_t OpenMicrophone(char* deviceName);
int32_t SetSpeakerVolume(uint32_t volume);
int32_t SpeakerVolume(uint32_t& volume) const;
int32_t MaxSpeakerVolume(uint32_t& maxVolume) const;
int32_t MinSpeakerVolume(uint32_t& minVolume) const;
int32_t SpeakerVolumeStepSize(uint16_t& stepSize) const;
int32_t SpeakerVolumeIsAvailable(bool& available);
int32_t SpeakerMuteIsAvailable(bool& available);
int32_t SetSpeakerMute(bool enable);
int32_t SpeakerMute(bool& enabled) const;
int32_t MicrophoneMuteIsAvailable(bool& available);
int32_t SetMicrophoneMute(bool enable);
int32_t MicrophoneMute(bool& enabled) const;
int32_t MicrophoneBoostIsAvailable(bool& available);
int32_t SetMicrophoneBoost(bool enable);
int32_t MicrophoneBoost(bool& enabled) const;
int32_t MicrophoneVolumeIsAvailable(bool& available);
int32_t SetMicrophoneVolume(uint32_t volume);
int32_t MicrophoneVolume(uint32_t& volume) const;
int32_t MaxMicrophoneVolume(uint32_t& maxVolume) const;
int32_t MinMicrophoneVolume(uint32_t& minVolume) const;
int32_t MicrophoneVolumeStepSize(uint16_t& stepSize) const;
int32_t Close();
int32_t CloseSpeaker();
int32_t CloseMicrophone();
bool SpeakerIsInitialized() const;
bool MicrophoneIsInitialized() const;
public:
AudioMixerManagerLinuxALSA();
~AudioMixerManagerLinuxALSA();
private:
int32_t LoadMicMixerElement() const;
int32_t LoadSpeakerMixerElement() const;
void GetControlName(char *controlName, char* deviceName) const;
private:
rtc::CriticalSection _critSect;
mutable snd_mixer_t* _outputMixerHandle;
char _outputMixerStr[kAdmMaxDeviceNameSize];
mutable snd_mixer_t* _inputMixerHandle;
char _inputMixerStr[kAdmMaxDeviceNameSize];
mutable snd_mixer_elem_t* _outputMixerElement;
mutable snd_mixer_elem_t* _inputMixerElement;
};
}
#endif // MODULES_AUDIO_DEVICE_MAIN_SOURCE_LINUX_AUDIO_MIXER_MANAGER_ALSA_LINUX_H_