qTox/src/audio/backend/openal2.h

84 lines
2.3 KiB
C++

/*
Copyright © 2014-2019 by The qTox Project Contributors
This file is part of qTox, a Qt-based graphical interface for Tox.
qTox is libre software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
qTox is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with qTox. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef OPENAL2_H
#define OPENAL2_H
#include "src/audio/iaudiocontrol.h"
#include "src/audio/backend/openal.h"
#include <atomic>
#include <cmath>
#include <QMutex>
#include <QObject>
#include <QTimer>
#include <cassert>
#include <AL/al.h>
#include <AL/alc.h>
#include <AL/alext.h>
extern "C"
{
#include <filter_audio.h>
}
// needed because Ubuntu 14.04 lacks the AL_SOFT_source_latency extension
#ifndef AL_SOFT_source_latency
#define AL_SAMPLE_OFFSET_LATENCY_SOFT 0x1200
#define AL_SEC_OFFSET_LATENCY_SOFT 0x1201
extern "C" typedef void(AL_APIENTRY* LPALGETSOURCEDVSOFT)(ALuint, ALenum, const ALdouble*);
#endif
class OpenAL2 : public OpenAL
{
Q_OBJECT
public:
OpenAL2();
protected:
bool initInput(const QString& deviceName) override;
bool initOutput(const QString& outDevDescr) override;
void cleanupOutput() override;
void playMono16SoundCleanup();
void doOutput() override;
bool loadOpenALExtensions(ALCdevice* dev);
bool initOutputEchoCancel();
void captureSamples(ALCdevice* device, int16_t* buffer, ALCsizei samples) override;
private:
ALCdevice* alProxyDev;
ALCcontext* alProxyContext;
ALuint alProxySource;
ALuint alProxyBuffer;
bool echoCancelSupported = false;
Filter_Audio* filterer = nullptr;
LPALCLOOPBACKOPENDEVICESOFT alcLoopbackOpenDeviceSOFT = nullptr;
LPALCISRENDERFORMATSUPPORTEDSOFT alcIsRenderFormatSupportedSOFT = nullptr;
LPALGETSOURCEDVSOFT alGetSourcedvSOFT = nullptr;
LPALCRENDERSAMPLESSOFT alcRenderSamplesSOFT = nullptr;
};
#endif // OPENAL2_H