mirror of
https://github.com/f4exb/sdrangel.git
synced 2024-12-25 12:12:02 -05:00
117 lines
3.3 KiB
C++
117 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 //
|
|
// //
|
|
// 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/>. //
|
|
///////////////////////////////////////////////////////////////////////////////////
|
|
|
|
#include <stdio.h>
|
|
#include <errno.h>
|
|
#include "osmosdrthread.h"
|
|
#include "dsp/samplefifo.h"
|
|
|
|
OsmoSDRThread::OsmoSDRThread(osmosdr_dev_t* dev, SampleFifo* sampleFifo, QObject* parent) :
|
|
QThread(parent),
|
|
m_running(false),
|
|
m_dev(dev),
|
|
m_sampleFifo(sampleFifo)
|
|
{
|
|
}
|
|
|
|
OsmoSDRThread::~OsmoSDRThread()
|
|
{
|
|
stopWork();
|
|
}
|
|
|
|
void OsmoSDRThread::startWork()
|
|
{
|
|
m_startWaitMutex.lock();
|
|
start();
|
|
while(!m_running)
|
|
m_startWaiter.wait(&m_startWaitMutex, 100);
|
|
m_startWaitMutex.unlock();
|
|
}
|
|
|
|
void OsmoSDRThread::stopWork()
|
|
{
|
|
m_running = false;
|
|
wait();
|
|
}
|
|
|
|
void OsmoSDRThread::run()
|
|
{
|
|
int res;
|
|
|
|
m_running = true;
|
|
m_startWaiter.wakeAll();
|
|
|
|
//m_f = fopen("/tmp/samples.bin", "wb");
|
|
|
|
while(m_running) {
|
|
if((res = osmosdr_read_async(m_dev, &OsmoSDRThread::callbackHelper, this, 16, sizeof(Sample) * 8192 * 2)) < 0) {
|
|
qCritical("OsmoSDRThread: async error: %s", strerror(errno));
|
|
break;
|
|
}
|
|
}
|
|
|
|
m_running = false;
|
|
}
|
|
|
|
void OsmoSDRThread::checkData(const quint8* buf, qint32 len)
|
|
{
|
|
const Sample* s = (const Sample*)buf;
|
|
len /= sizeof(Sample);
|
|
|
|
while(len) {
|
|
if((s->i != m_nextI) || (s->q != m_nextQ)) {
|
|
qDebug("continuity error after %llu samples", m_samplePos);
|
|
m_samplePos = 0;
|
|
m_nextI = s->i - 1;
|
|
m_nextQ = s->q + 1;
|
|
} else {
|
|
m_nextI--;
|
|
m_nextQ++;
|
|
m_samplePos++;
|
|
}
|
|
len--;
|
|
s++;
|
|
}
|
|
}
|
|
|
|
void OsmoSDRThread::callback(const quint8* buf, qint32 len)
|
|
{
|
|
/*
|
|
qDebug("%d", len);
|
|
*/
|
|
/*
|
|
for(int i = 0; i < len / 2; i += 2) {
|
|
((qint16*)buf)[i] = sin((float)(cntr) * 1024* 2.0 * M_PI / 65536.0) * 32000.0;
|
|
((qint16*)buf)[i + 1] = -cos((float)(cntr++) * 1024*2.0 * M_PI / 65536.0) * 32000.0;
|
|
}
|
|
*/
|
|
|
|
//m_sampleFifo->write((SampleVector::const_iterator)((Sample*)buf), (SampleVector::const_iterator)((Sample*)(buf + len)));
|
|
//fwrite(buf, 1, len, m_f);
|
|
//checkData(buf, len);
|
|
|
|
m_sampleFifo->write(buf, len);
|
|
if(!m_running)
|
|
osmosdr_cancel_async(m_dev);
|
|
}
|
|
|
|
void OsmoSDRThread::callbackHelper(unsigned char* buf, uint32_t len, void* ctx)
|
|
{
|
|
OsmoSDRThread* thread = (OsmoSDRThread*)ctx;
|
|
thread->callback(buf, len);
|
|
}
|