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// Copyright 2007-2021 The Mumble Developers. All rights reserved.
// Use of this source code is governed by a BSD-style license
// that can be found in the LICENSE file at the root of the
// Mumble source tree or at <https://www.mumble.info/LICENSE>.
#ifndef MUMBLE_MUMBLE_PAAUDIO_H_
#define MUMBLE_MUMBLE_PAAUDIO_H_
#include "AudioInput.h"
#include "AudioOutput.h"
#include <QtCore/QLibrary>
#include <QtCore/QWaitCondition>
#include <portaudio.h>
class PortAudioInit;
class PortAudioSystem : public QObject {
friend PortAudioInit;
private:
Q_OBJECT
Q_DISABLE_COPY(PortAudioSystem)
protected:
bool bOk;
QMutex qmWait;
QLibrary qlPortAudio;
QWaitCondition qwcWait;
static int streamCallback(const void *input, void *output, unsigned long frames, const PaStreamCallbackTimeInfo *,
PaStreamCallbackFlags statusFlags, void *isInput);
const char *(*Pa_GetVersionText)();
const char *(*Pa_GetErrorText)(PaError errorCode);
PaError (*Pa_Initialize)();
PaError (*Pa_Terminate)();
PaError (*Pa_OpenStream)(PaStream **stream, const PaStreamParameters *inputParameters,
const PaStreamParameters *outputParameters, double sampleRate,
unsigned long framesPerBuffer, PaStreamFlags streamFlags, PaStreamCallback *streamCallback,
void *userData);
PaError (*Pa_CloseStream)(PaStream *stream);
PaError (*Pa_StartStream)(PaStream *stream);
PaError (*Pa_StopStream)(PaStream *stream);
PaError (*Pa_IsStreamActive)(PaStream *stream);
PaDeviceIndex (*Pa_GetDefaultInputDevice)();
PaDeviceIndex (*Pa_GetDefaultOutputDevice)();
PaDeviceIndex (*Pa_HostApiDeviceIndexToDeviceIndex)(PaHostApiIndex hostApi, int hostApiDeviceIndex);
PaHostApiIndex (*Pa_GetHostApiCount)();
const PaHostApiInfo *(*Pa_GetHostApiInfo)(PaHostApiIndex hostApi);
const PaDeviceInfo *(*Pa_GetDeviceInfo)(PaDeviceIndex device);
public:
const QList< audioDevice > enumerateDevices(const bool input, const PaDeviceIndex current);
bool isStreamRunning(PaStream *stream);
int openStream(PaStream **stream, PaDeviceIndex device, const uint32_t frameSize, const bool isInput);
bool closeStream(PaStream *stream);
bool startStream(PaStream *stream);
bool stopStream(PaStream *stream);
PortAudioSystem();
~PortAudioSystem();
};
class PortAudioInput : public AudioInput {
private:
Q_OBJECT
Q_DISABLE_COPY(PortAudioInput)
protected:
QMutex qmWait;
QWaitCondition qwcSleep;
PaStream *stream;
public:
void process(const uint32_t frames, const void *buffer);
void run() Q_DECL_OVERRIDE;
PortAudioInput();
~PortAudioInput() Q_DECL_OVERRIDE;
};
class PortAudioOutput : public AudioOutput {
private:
Q_OBJECT
Q_DISABLE_COPY(PortAudioOutput)
protected:
QMutex qmWait;
QWaitCondition qwcSleep;
PaStream *stream;
public:
void process(const uint32_t frames, void *buffer);
void run() Q_DECL_OVERRIDE;
PortAudioOutput();
~PortAudioOutput() Q_DECL_OVERRIDE;
};
#endif
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