2014-11-03 17:13:32 +00:00
|
|
|
///////////////////////////////////////////////////////////////////////////////////
|
|
|
|
|
// 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_V4LTHREAD_H
|
|
|
|
|
#define INCLUDE_V4LTHREAD_H
|
|
|
|
|
|
|
|
|
|
#include <QThread>
|
|
|
|
|
#include <QMutex>
|
|
|
|
|
#include <QWaitCondition>
|
|
|
|
|
#include "dsp/samplefifo.h"
|
|
|
|
|
#include "dsp/inthalfbandfilter.h"
|
|
|
|
|
|
2014-11-12 17:37:46 +00:00
|
|
|
#define SAMPLERATE 1024000
|
2015-08-27 08:31:02 +02:00
|
|
|
#define FCD_BLOCKSIZE 4096
|
2014-11-12 17:37:46 +00:00
|
|
|
|
2014-11-03 17:13:32 +00:00
|
|
|
class V4LThread : public QThread {
|
|
|
|
|
Q_OBJECT
|
|
|
|
|
|
|
|
|
|
public:
|
2014-12-03 00:13:18 +00:00
|
|
|
V4LThread(SampleFifo* sampleFifo, double frequency, QObject* parent = NULL);
|
2014-11-03 17:13:32 +00:00
|
|
|
~V4LThread();
|
|
|
|
|
|
|
|
|
|
void stopWork();
|
2014-11-12 17:37:46 +00:00
|
|
|
void OpenSource(const char *filename);
|
|
|
|
|
void CloseSource();
|
|
|
|
|
void set_sample_rate(double samp_rate);
|
|
|
|
|
void set_center_freq(double freq);
|
|
|
|
|
void set_bandwidth(double bandwidth);
|
|
|
|
|
void set_tuner_gain(double gain);
|
|
|
|
|
int work(int n_items);
|
2014-11-03 17:13:32 +00:00
|
|
|
private:
|
2014-11-12 17:37:46 +00:00
|
|
|
int fd;
|
|
|
|
|
quint32 pixelformat;
|
|
|
|
|
struct v4l_buffer *buffers;
|
|
|
|
|
unsigned int n_buffers;
|
|
|
|
|
void *recebuf_ptr;
|
|
|
|
|
unsigned int recebuf_len;
|
|
|
|
|
unsigned int recebuf_mmap_index;
|
|
|
|
|
|
2014-12-03 00:13:18 +00:00
|
|
|
double centerFreq;
|
|
|
|
|
|
2014-11-03 17:13:32 +00:00
|
|
|
QMutex m_startWaitMutex;
|
|
|
|
|
QWaitCondition m_startWaiter;
|
|
|
|
|
bool m_running;
|
|
|
|
|
|
|
|
|
|
SampleVector m_convertBuffer;
|
|
|
|
|
SampleFifo* m_sampleFifo;
|
|
|
|
|
|
|
|
|
|
void run();
|
|
|
|
|
|
|
|
|
|
};
|
|
|
|
|
#endif // INCLUDE_V4LTHREAD_H
|
