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sdrangel/sdrbase/audio/audiooutput.h

98 lines
3.3 KiB
C++

///////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2012 maintech GmbH, Otto-Hahn-Str. 15, 97204 Hoechberg, Germany //
// written by Christian Daniel //
// //
// 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 INCLUDE_AUDIOOUTPUT_H
#define INCLUDE_AUDIOOUTPUT_H
#include <QMutex>
#include <QIODevice>
#include <QAudioFormat>
#include <list>
#include <vector>
#include <stdint.h>
#include "export.h"
class QAudioOutput;
class AudioFifo;
class AudioOutputPipe;
class AudioNetSink;
class SDRBASE_API AudioOutput : QIODevice {
public:
enum UDPChannelMode
{
UDPChannelLeft,
UDPChannelRight,
UDPChannelMixed,
UDPChannelStereo
};
enum UDPChannelCodec
{
UDPCodecL16, //!< Linear 16 bit (no codec)
UDPCodecL8, //!< Linear 8 bit
UDPCodecALaw, //!< PCM A-law 8 bit
UDPCodecULaw, //!< PCM Mu-law 8 bit
UDPCodecG722, //!< G722 compression
UDPCodecOpus //!< Opus compression
};
AudioOutput();
virtual ~AudioOutput();
bool start(int device, int rate);
void stop();
void addFifo(AudioFifo* audioFifo);
void removeFifo(AudioFifo* audioFifo);
int getNbFifos() const { return m_audioFifos.size(); }
unsigned int getRate() const { return m_audioFormat.sampleRate(); }
void setOnExit(bool onExit) { m_onExit = onExit; }
void setUdpDestination(const QString& address, uint16_t port);
void setUdpCopyToUDP(bool copyToUDP);
void setUdpUseRTP(bool useRTP);
void setUdpChannelMode(UDPChannelMode udpChannelMode);
void setUdpChannelFormat(UDPChannelCodec udpChannelCodec, bool stereo, int sampleRate);
void setUdpDecimation(uint32_t decimation);
private:
QMutex m_mutex;
QAudioOutput* m_audioOutput;
AudioNetSink* m_audioNetSink;
bool m_copyAudioToUdp;
UDPChannelMode m_udpChannelMode;
UDPChannelCodec m_udpChannelCodec;
uint m_audioUsageCount;
bool m_onExit;
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 // INCLUDE_AUDIOOUTPUT_H