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///////////////////////////////////////////////////////////////////////////////////
// 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 //
// //
// 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_RTLSDRTHREAD_H
#define INCLUDE_RTLSDRTHREAD_H
#include <QThread>
#include <QMutex>
#include <QWaitCondition>
#include <rtl-sdr.h>
#include "dsp/samplefifo.h"
#include "dsp/inthalfbandfilter.h"
class RTLSDRThread : public QThread {
Q_OBJECT
public:
RTLSDRThread(rtlsdr_dev_t* dev, SampleFifo* sampleFifo, QObject* parent = NULL);
~RTLSDRThread();
void startWork();
void stopWork();
void setDecimation(int decimation);
private:
QMutex m_startWaitMutex;
QWaitCondition m_startWaiter;
bool m_running;
rtlsdr_dev_t* m_dev;
SampleVector m_convertBuffer;
SampleFifo* m_sampleFifo;
int m_decimation;
IntHalfbandFilter m_decimator2;
IntHalfbandFilter m_decimator4;
IntHalfbandFilter m_decimator8;
IntHalfbandFilter m_decimator16;
void run();
void decimate2(SampleVector::iterator* it, const quint8* buf, qint32 len);
void decimate4(SampleVector::iterator* it, const quint8* buf, qint32 len);
void decimate8(SampleVector::iterator* it, const quint8* buf, qint32 len);
void decimate16(SampleVector::iterator* it, const quint8* buf, qint32 len);
void callback(const quint8* buf, qint32 len);
static void callbackHelper(unsigned char* buf, uint32_t len, void* ctx);
};
#endif // INCLUDE_RTLSDRTHREAD_H
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