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sdrangel/sdrbase/audio/audioinputdevice.h
2022-11-17 14:50:16 +00:00

79 lines
2.6 KiB
C++

///////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2016 Edouard Griffiths, F4EXB //
// //
// This program is free 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 as version 3 of the License, or //
// (at your option) any later version. //
// //
// This program 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 V3 for more details. //
// //
// You should have received a copy of the GNU General Public License //
// along with this program. If not, see <http://www.gnu.org/licenses/>. //
///////////////////////////////////////////////////////////////////////////////////
#ifndef SDRBASE_AUDIO_AUDIOINPUTDEVICE_H_
#define SDRBASE_AUDIO_AUDIOINPUTDEVICE_H_
#include <QRecursiveMutex>
#include <QIODevice>
#include <QAudioFormat>
#include <list>
#include <vector>
#include "export.h"
#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
class QAudioSource;
#else
class QAudioInput;
#endif
class AudioFifo;
class AudioOutputPipe;
class SDRBASE_API AudioInputDevice : public QIODevice {
public:
AudioInputDevice();
virtual ~AudioInputDevice();
bool start(int device, int rate);
void stop();
void addFifo(AudioFifo* audioFifo);
void removeFifo(AudioFifo* audioFifo);
int getNbFifos() const { return m_audioFifos.size(); }
uint getRate() const { return m_audioFormat.sampleRate(); }
void setOnExit(bool onExit) { m_onExit = onExit; }
void setVolume(float volume);
private:
QRecursiveMutex m_mutex;
#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
QAudioSource* m_audioInput;
#else
QAudioInput* m_audioInput;
#endif
uint m_audioUsageCount;
bool m_onExit;
float m_volume;
std::list<AudioFifo*> m_audioFifos;
std::vector<qint32> m_mixBuffer;
QAudioFormat m_audioFormat;
//virtual bool open(OpenMode mode);
virtual qint64 readData(char* data, qint64 maxLen);
virtual qint64 writeData(const char* data, qint64 len);
friend class AudioOutputPipe;
};
#endif /* SDRBASE_AUDIO_AUDIOINPUTDEVICE_H_ */