blob: 1d75c8e94a06dc387d7f019460adb215715831e6 [file] [log] [blame]
* Copyright (c) 2012 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.
#include "webrtc/modules/audio_device/audio_device_generic.h"
#include "webrtc/modules/audio_device/linux/audio_mixer_manager_alsa_linux.h"
#include "webrtc/system_wrappers/interface/critical_section_wrapper.h"
#if defined(USE_X11)
#include <X11/Xlib.h>
#include <alsa/asoundlib.h>
#include <sys/ioctl.h>
#include <sys/soundcard.h>
namespace webrtc
class EventWrapper;
class ThreadWrapper;
class AudioDeviceLinuxALSA : public AudioDeviceGeneric
AudioDeviceLinuxALSA(const int32_t id);
virtual ~AudioDeviceLinuxALSA();
// Retrieve the currently utilized audio layer
virtual int32_t ActiveAudioLayer(
AudioDeviceModule::AudioLayer& audioLayer) const OVERRIDE;
// Main initializaton and termination
virtual int32_t Init() OVERRIDE;
virtual int32_t Terminate() OVERRIDE;
virtual bool Initialized() const OVERRIDE;
// Device enumeration
virtual int16_t PlayoutDevices() OVERRIDE;
virtual int16_t RecordingDevices() OVERRIDE;
virtual int32_t PlayoutDeviceName(
uint16_t index,
char name[kAdmMaxDeviceNameSize],
char guid[kAdmMaxGuidSize]) OVERRIDE;
virtual int32_t RecordingDeviceName(
uint16_t index,
char name[kAdmMaxDeviceNameSize],
char guid[kAdmMaxGuidSize]) OVERRIDE;
// Device selection
virtual int32_t SetPlayoutDevice(uint16_t index) OVERRIDE;
virtual int32_t SetPlayoutDevice(
AudioDeviceModule::WindowsDeviceType device) OVERRIDE;
virtual int32_t SetRecordingDevice(uint16_t index) OVERRIDE;
virtual int32_t SetRecordingDevice(
AudioDeviceModule::WindowsDeviceType device) OVERRIDE;
// Audio transport initialization
virtual int32_t PlayoutIsAvailable(bool& available) OVERRIDE;
virtual int32_t InitPlayout() OVERRIDE;
virtual bool PlayoutIsInitialized() const OVERRIDE;
virtual int32_t RecordingIsAvailable(bool& available) OVERRIDE;
virtual int32_t InitRecording() OVERRIDE;
virtual bool RecordingIsInitialized() const OVERRIDE;
// Audio transport control
virtual int32_t StartPlayout() OVERRIDE;
virtual int32_t StopPlayout() OVERRIDE;
virtual bool Playing() const OVERRIDE;
virtual int32_t StartRecording() OVERRIDE;
virtual int32_t StopRecording() OVERRIDE;
virtual bool Recording() const OVERRIDE;
// Microphone Automatic Gain Control (AGC)
virtual int32_t SetAGC(bool enable) OVERRIDE;
virtual bool AGC() const OVERRIDE;
// Volume control based on the Windows Wave API (Windows only)
virtual int32_t SetWaveOutVolume(uint16_t volumeLeft,
uint16_t volumeRight) OVERRIDE;
virtual int32_t WaveOutVolume(uint16_t& volumeLeft,
uint16_t& volumeRight) const OVERRIDE;
// Audio mixer initialization
virtual int32_t InitSpeaker() OVERRIDE;
virtual bool SpeakerIsInitialized() const OVERRIDE;
virtual int32_t InitMicrophone() OVERRIDE;
virtual bool MicrophoneIsInitialized() const OVERRIDE;
// Speaker volume controls
virtual int32_t SpeakerVolumeIsAvailable(bool& available) OVERRIDE;
virtual int32_t SetSpeakerVolume(uint32_t volume) OVERRIDE;
virtual int32_t SpeakerVolume(uint32_t& volume) const OVERRIDE;
virtual int32_t MaxSpeakerVolume(uint32_t& maxVolume) const OVERRIDE;
virtual int32_t MinSpeakerVolume(uint32_t& minVolume) const OVERRIDE;
virtual int32_t SpeakerVolumeStepSize(uint16_t& stepSize) const OVERRIDE;
// Microphone volume controls
virtual int32_t MicrophoneVolumeIsAvailable(bool& available) OVERRIDE;
virtual int32_t SetMicrophoneVolume(uint32_t volume) OVERRIDE;
virtual int32_t MicrophoneVolume(uint32_t& volume) const OVERRIDE;
virtual int32_t MaxMicrophoneVolume(uint32_t& maxVolume) const OVERRIDE;
virtual int32_t MinMicrophoneVolume(uint32_t& minVolume) const OVERRIDE;
virtual int32_t MicrophoneVolumeStepSize(
uint16_t& stepSize) const OVERRIDE;
// Speaker mute control
virtual int32_t SpeakerMuteIsAvailable(bool& available) OVERRIDE;
virtual int32_t SetSpeakerMute(bool enable) OVERRIDE;
virtual int32_t SpeakerMute(bool& enabled) const OVERRIDE;
// Microphone mute control
virtual int32_t MicrophoneMuteIsAvailable(bool& available) OVERRIDE;
virtual int32_t SetMicrophoneMute(bool enable) OVERRIDE;
virtual int32_t MicrophoneMute(bool& enabled) const OVERRIDE;
// Microphone boost control
virtual int32_t MicrophoneBoostIsAvailable(bool& available) OVERRIDE;
virtual int32_t SetMicrophoneBoost(bool enable) OVERRIDE;
virtual int32_t MicrophoneBoost(bool& enabled) const OVERRIDE;
// Stereo support
virtual int32_t StereoPlayoutIsAvailable(bool& available) OVERRIDE;
virtual int32_t SetStereoPlayout(bool enable) OVERRIDE;
virtual int32_t StereoPlayout(bool& enabled) const OVERRIDE;
virtual int32_t StereoRecordingIsAvailable(bool& available) OVERRIDE;
virtual int32_t SetStereoRecording(bool enable) OVERRIDE;
virtual int32_t StereoRecording(bool& enabled) const OVERRIDE;
// Delay information and control
virtual int32_t SetPlayoutBuffer(
const AudioDeviceModule::BufferType type,
uint16_t sizeMS) OVERRIDE;
virtual int32_t PlayoutBuffer(
AudioDeviceModule::BufferType& type,
uint16_t& sizeMS) const OVERRIDE;
virtual int32_t PlayoutDelay(uint16_t& delayMS) const OVERRIDE;
virtual int32_t RecordingDelay(uint16_t& delayMS) const OVERRIDE;
// CPU load
virtual int32_t CPULoad(uint16_t& load) const OVERRIDE;
virtual bool PlayoutWarning() const OVERRIDE;
virtual bool PlayoutError() const OVERRIDE;
virtual bool RecordingWarning() const OVERRIDE;
virtual bool RecordingError() const OVERRIDE;
virtual void ClearPlayoutWarning() OVERRIDE;
virtual void ClearPlayoutError() OVERRIDE;
virtual void ClearRecordingWarning() OVERRIDE;
virtual void ClearRecordingError() OVERRIDE;
virtual void AttachAudioBuffer(AudioDeviceBuffer* audioBuffer) OVERRIDE;
int32_t GetDevicesInfo(const int32_t function,
const bool playback,
const int32_t enumDeviceNo = 0,
char* enumDeviceName = NULL,
const int32_t ednLen = 0) const;
int32_t ErrorRecovery(int32_t error, snd_pcm_t* deviceHandle);
bool KeyPressed() const;
void Lock() EXCLUSIVE_LOCK_FUNCTION(_critSect) { _critSect.Enter(); };
void UnLock() UNLOCK_FUNCTION(_critSect) { _critSect.Leave(); };
inline int32_t InputSanityCheckAfterUnlockedPeriod() const;
inline int32_t OutputSanityCheckAfterUnlockedPeriod() const;
static bool RecThreadFunc(void*);
static bool PlayThreadFunc(void*);
bool RecThreadProcess();
bool PlayThreadProcess();
AudioDeviceBuffer* _ptrAudioBuffer;
CriticalSectionWrapper& _critSect;
ThreadWrapper* _ptrThreadRec;
ThreadWrapper* _ptrThreadPlay;
uint32_t _recThreadID;
uint32_t _playThreadID;
int32_t _id;
AudioMixerManagerLinuxALSA _mixerManager;
uint16_t _inputDeviceIndex;
uint16_t _outputDeviceIndex;
bool _inputDeviceIsSpecified;
bool _outputDeviceIsSpecified;
snd_pcm_t* _handleRecord;
snd_pcm_t* _handlePlayout;
snd_pcm_uframes_t _recordingBuffersizeInFrame;
snd_pcm_uframes_t _recordingPeriodSizeInFrame;
snd_pcm_uframes_t _playoutBufferSizeInFrame;
snd_pcm_uframes_t _playoutPeriodSizeInFrame;
ssize_t _recordingBufferSizeIn10MS;
ssize_t _playoutBufferSizeIn10MS;
uint32_t _recordingFramesIn10MS;
uint32_t _playoutFramesIn10MS;
uint32_t _recordingFreq;
uint32_t _playoutFreq;
uint8_t _recChannels;
uint8_t _playChannels;
int8_t* _recordingBuffer; // in byte
int8_t* _playoutBuffer; // in byte
uint32_t _recordingFramesLeft;
uint32_t _playoutFramesLeft;
AudioDeviceModule::BufferType _playBufType;
bool _initialized;
bool _recording;
bool _playing;
bool _recIsInitialized;
bool _playIsInitialized;
bool _AGC;
snd_pcm_sframes_t _recordingDelay;
snd_pcm_sframes_t _playoutDelay;
uint16_t _playWarning;
uint16_t _playError;
uint16_t _recWarning;
uint16_t _recError;
uint16_t _playBufDelay; // playback delay
uint16_t _playBufDelayFixed; // fixed playback delay
char _oldKeyState[32];
#if defined(USE_X11)
Display* _XDisplay;