///////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2016 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 . //
///////////////////////////////////////////////////////////////////////////////////
#include
#include
#include
#include
#include "device/deviceapi.h"
#include "dsp/dspcommands.h"
#include "dsp/dspengine.h"
#include "sdrdaemonfecinput.h"
#include "sdrdaemonfecudphandler.h"
SDRdaemonFECUDPHandler::SDRdaemonFECUDPHandler(SampleFifo *sampleFifo, MessageQueue *outputMessageQueueToGUI, DeviceAPI *devieAPI) :
m_deviceAPI(devieAPI),
m_sdrDaemonBuffer(m_rateDivider),
m_dataSocket(0),
m_dataAddress(QHostAddress::LocalHost),
m_remoteAddress(QHostAddress::LocalHost),
m_dataPort(9090),
m_dataConnected(false),
m_udpBuf(0),
m_udpReadBytes(0),
m_sampleFifo(sampleFifo),
m_samplerate(0),
m_centerFrequency(0),
m_tv_sec(0),
m_tv_usec(0),
m_outputMessageQueueToGUI(outputMessageQueueToGUI),
m_tickCount(0),
m_samplesCount(0),
m_timer(0),
m_throttlems(SDRDAEMONFEC_THROTTLE_MS),
m_readLengthSamples(0),
m_readLength(0),
m_throttleToggle(false),
m_rateDivider(1000/SDRDAEMONFEC_THROTTLE_MS),
m_autoCorrBuffer(false)
{
m_udpBuf = new char[SDRdaemonFECBuffer::m_udpPayloadSize];
}
SDRdaemonFECUDPHandler::~SDRdaemonFECUDPHandler()
{
stop();
delete[] m_udpBuf;
#ifdef USE_INTERNAL_TIMER
if (m_timer) {
delete m_timer;
}
#endif
}
void SDRdaemonFECUDPHandler::start()
{
qDebug("SDRdaemonUDPHandler::start");
if (!m_dataSocket)
{
m_dataSocket = new QUdpSocket(this);
}
if (!m_dataConnected)
{
if (m_dataSocket->bind(m_dataAddress, m_dataPort))
{
qDebug("SDRdaemonUDPHandler::start: bind data socket to %s:%d", m_dataAddress.toString().toStdString().c_str(), m_dataPort);
connect(m_dataSocket, SIGNAL(readyRead()), this, SLOT(dataReadyRead()), Qt::QueuedConnection); // , Qt::QueuedConnection
m_dataConnected = true;
}
else
{
qWarning("SDRdaemonUDPHandler::start: cannot bind data port %d", m_dataPort);
m_dataConnected = false;
}
}
// Need to notify the DSP engine to actually start
DSPSignalNotification *notif = new DSPSignalNotification(m_samplerate, m_centerFrequency * 1000); // Frequency in Hz for the DSP engine
m_deviceAPI->getDeviceInputMessageQueue()->push(notif);
m_elapsedTimer.start();
}
void SDRdaemonFECUDPHandler::stop()
{
qDebug("SDRdaemonUDPHandler::stop");
if (m_dataConnected) {
disconnect(m_dataSocket, SIGNAL(readyRead()), this, SLOT(dataReadyRead()));
m_dataConnected = false;
}
if (m_dataSocket)
{
delete m_dataSocket;
m_dataSocket = 0;
}
}
void SDRdaemonFECUDPHandler::configureUDPLink(const QString& address, quint16 port)
{
qDebug("SDRdaemonUDPHandler::configureUDPLink: %s:%d", address.toStdString().c_str(), port);
bool addressOK = m_dataAddress.setAddress(address);
if (!addressOK)
{
qWarning("SDRdaemonUDPHandler::configureUDPLink: invalid address %s. Set to localhost.", address.toStdString().c_str());
m_dataAddress = QHostAddress::LocalHost;
}
stop();
m_dataPort = port;
start();
}
void SDRdaemonFECUDPHandler::dataReadyRead()
{
while (m_dataSocket->hasPendingDatagrams())
{
qint64 pendingDataSize = m_dataSocket->pendingDatagramSize();
m_udpReadBytes = m_dataSocket->readDatagram(m_udpBuf, pendingDataSize, &m_remoteAddress, 0);
if (m_udpReadBytes == SDRdaemonFECBuffer::m_udpPayloadSize) {
processData();
}
}
}
void SDRdaemonFECUDPHandler::processData()
{
m_sdrDaemonBuffer.writeData(m_udpBuf, m_udpReadBytes);
}
void SDRdaemonFECUDPHandler::setSamplerate(uint32_t samplerate)
{
qDebug() << "SDRdaemonUDPHandler::setSamplerate:"
<< " new:" << samplerate
<< " old:" << m_samplerate;
m_samplerate = samplerate;
}
void SDRdaemonFECUDPHandler::connectTimer(const QTimer* timer)
{
qDebug() << "SDRdaemonUDPHandler::connectTimer";
#ifdef USE_INTERNAL_TIMER
#warning "Uses internal timer"
m_timer = new QTimer();
m_timer->start(50);
m_throttlems = m_timer->interval();
connect(m_timer, SIGNAL(timeout()), this, SLOT(tick()));
#else
m_throttlems = timer->interval();
connect(timer, SIGNAL(timeout()), this, SLOT(tick()));
#endif
m_rateDivider = 1000 / m_throttlems;
}
void SDRdaemonFECUDPHandler::tick()
{
// auto throttling
int throttlems = m_elapsedTimer.restart();
if (throttlems != m_throttlems)
{
m_throttlems = throttlems;
m_readLengthSamples = (m_sdrDaemonBuffer.getCurrentMeta().m_sampleRate * (m_throttlems+(m_throttleToggle ? 1 : 0))) / 1000;
m_readLength = m_readLengthSamples * SDRdaemonFECBuffer::m_iqSampleSize;
m_throttleToggle = !m_throttleToggle;
}
// read samples directly feeding the SampleFifo (no callback)
m_sampleFifo->write(reinterpret_cast(m_sdrDaemonBuffer.readData(m_readLength)), m_readLength);
m_samplesCount += m_readLengthSamples;
if (m_tickCount < m_rateDivider)
{
m_tickCount++;
}
else
{
m_tickCount = 0;
SDRdaemonFECInput::MsgReportSDRdaemonFECStreamTiming *report = SDRdaemonFECInput::MsgReportSDRdaemonFECStreamTiming::create(
m_tv_sec,
m_tv_usec,
m_sdrDaemonBuffer.getBufferLengthInSecs(),
m_sdrDaemonBuffer.getBufferGauge(),
m_sdrDaemonBuffer.getCurNbBlocks() == SDRdaemonFECBuffer::m_nbOriginalBlocks,
m_sdrDaemonBuffer.getCurNbBlocks(),
m_sdrDaemonBuffer.getCurNbRecovery(),
m_sdrDaemonBuffer.getAvgNbBlocks(),
m_sdrDaemonBuffer.getAvgNbRecovery());
m_outputMessageQueueToGUI->push(report);
}
}