mirror of
https://github.com/f4exb/sdrangel.git
synced 2025-11-03 21:20:31 -05:00
148 lines
4.2 KiB
C++
148 lines
4.2 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
|
|
// Copyright (C) 2017 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 //
|
|
// //
|
|
// 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 <sys/time.h>
|
|
#include <stdio.h>
|
|
#include <errno.h>
|
|
#include <assert.h>
|
|
#include <algorithm>
|
|
#include <QDebug>
|
|
|
|
#include "dsp/samplesourcefifo.h"
|
|
#include "sdrdaemonsinkthread.h"
|
|
|
|
SDRdaemonSinkThread::SDRdaemonSinkThread(SampleSourceFifo* sampleFifo, QObject* parent) :
|
|
QThread(parent),
|
|
m_running(false),
|
|
m_samplesChunkSize(0),
|
|
m_sampleFifo(sampleFifo),
|
|
m_samplesCount(0),
|
|
m_chunkCorrection(0),
|
|
m_samplerate(0),
|
|
m_throttlems(SDRDAEMONSINK_THROTTLE_MS),
|
|
m_maxThrottlems(50),
|
|
m_throttleToggle(false)
|
|
{
|
|
}
|
|
|
|
SDRdaemonSinkThread::~SDRdaemonSinkThread()
|
|
{
|
|
if (m_running) {
|
|
stopWork();
|
|
}
|
|
}
|
|
|
|
void SDRdaemonSinkThread::startWork()
|
|
{
|
|
qDebug() << "SDRdaemonSinkThread::startWork: ";
|
|
m_udpSinkFEC.start();
|
|
m_maxThrottlems = 0;
|
|
m_startWaitMutex.lock();
|
|
m_elapsedTimer.start();
|
|
start();
|
|
while(!m_running)
|
|
m_startWaiter.wait(&m_startWaitMutex, 100);
|
|
m_startWaitMutex.unlock();
|
|
}
|
|
|
|
void SDRdaemonSinkThread::stopWork()
|
|
{
|
|
qDebug() << "SDRdaemonSinkThread::stopWork";
|
|
m_running = false;
|
|
wait();
|
|
m_udpSinkFEC.stop();
|
|
}
|
|
|
|
void SDRdaemonSinkThread::setSamplerate(int samplerate)
|
|
{
|
|
if (samplerate != m_samplerate)
|
|
{
|
|
qDebug() << "SDRdaemonSinkThread::setSamplerate:"
|
|
<< " new:" << samplerate
|
|
<< " old:" << m_samplerate;
|
|
|
|
bool wasRunning = false;
|
|
|
|
if (m_running)
|
|
{
|
|
stopWork();
|
|
wasRunning = true;
|
|
}
|
|
|
|
// resize sample FIFO
|
|
if (m_sampleFifo) {
|
|
m_sampleFifo->resize(samplerate); // 1s buffer
|
|
}
|
|
|
|
m_samplerate = samplerate;
|
|
m_samplesChunkSize = (m_samplerate * m_throttlems) / 1000;
|
|
m_udpSinkFEC.setSampleRate(m_samplerate);
|
|
|
|
if (wasRunning) {
|
|
startWork();
|
|
}
|
|
}
|
|
}
|
|
|
|
void SDRdaemonSinkThread::run()
|
|
{
|
|
m_running = true;
|
|
m_startWaiter.wakeAll();
|
|
|
|
while(m_running) // actual work is in the tick() function
|
|
{
|
|
sleep(1);
|
|
}
|
|
|
|
m_running = false;
|
|
}
|
|
|
|
void SDRdaemonSinkThread::connectTimer(const QTimer& timer)
|
|
{
|
|
qDebug() << "SDRdaemonSinkThread::connectTimer";
|
|
connect(&timer, SIGNAL(timeout()), this, SLOT(tick()));
|
|
}
|
|
|
|
void SDRdaemonSinkThread::tick()
|
|
{
|
|
if (m_running)
|
|
{
|
|
qint64 throttlems = m_elapsedTimer.restart();
|
|
|
|
if (throttlems != m_throttlems)
|
|
{
|
|
m_throttlems = throttlems;
|
|
m_samplesChunkSize = (m_samplerate * (m_throttlems+(m_throttleToggle ? 1 : 0))) / 1000;
|
|
m_samplesChunkSize = m_samplesChunkSize + m_chunkCorrection > 0 ? m_samplesChunkSize + m_chunkCorrection : m_samplesChunkSize;
|
|
m_throttleToggle = !m_throttleToggle;
|
|
}
|
|
|
|
SampleVector::iterator readUntil;
|
|
|
|
m_sampleFifo->readAdvance(readUntil, m_samplesChunkSize); // pull samples
|
|
SampleVector::iterator beginRead = readUntil - m_samplesChunkSize;
|
|
m_samplesCount += m_samplesChunkSize;
|
|
|
|
m_udpSinkFEC.write(beginRead, m_samplesChunkSize);
|
|
}
|
|
}
|
|
|
|
uint32_t SDRdaemonSinkThread::getSamplesCount(struct timeval& tv) const
|
|
{
|
|
gettimeofday(&tv, 0);
|
|
return m_samplesCount;
|
|
}
|