sdrangel/plugins/channelrx/filesink/filesinkbaseband.cpp

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///////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2020 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 //
// (at your option) any later version. //
// //
// 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 <QDebug>
#include "dsp/downchannelizer.h"
#include "dsp/dspengine.h"
#include "dsp/dspcommands.h"
#include "dsp/spectrumvis.h"
#include "util/db.h"
#include "filesinkmessages.h"
#include "filesinkbaseband.h"
MESSAGE_CLASS_DEFINITION(FileSinkBaseband::MsgConfigureFileSinkBaseband, Message)
MESSAGE_CLASS_DEFINITION(FileSinkBaseband::MsgConfigureFileSinkWork, Message)
FileSinkBaseband::FileSinkBaseband() :
m_specMax(0),
m_squelchLevel(0),
m_squelchOpen(false),
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m_running(false),
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m_mutex(QMutex::Recursive)
{
m_sampleFifo.setSize(SampleSinkFifo::getSizePolicy(48000));
m_channelizer = new DownChannelizer(&m_sink);
qDebug("FileSinkBaseband::FileSinkBaseband");
connect(&m_timer, SIGNAL(timeout()), this, SLOT(tick()));
m_timer.start(200);
}
FileSinkBaseband::~FileSinkBaseband()
{
m_inputMessageQueue.clear();
delete m_channelizer;
}
void FileSinkBaseband::reset()
{
QMutexLocker mutexLocker(&m_mutex);
m_inputMessageQueue.clear();
m_sampleFifo.reset();
}
void FileSinkBaseband::startWork()
{
QMutexLocker mutexLocker(&m_mutex);
QObject::connect(
&m_sampleFifo,
&SampleSinkFifo::dataReady,
this,
&FileSinkBaseband::handleData,
Qt::QueuedConnection
);
connect(&m_inputMessageQueue, SIGNAL(messageEnqueued()), this, SLOT(handleInputMessages()));
m_running = true;
}
void FileSinkBaseband::stopWork()
{
QMutexLocker mutexLocker(&m_mutex);
m_sink.stopRecording();
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disconnect(&m_inputMessageQueue, SIGNAL(messageEnqueued()), this, SLOT(handleInputMessages()));
QObject::disconnect(
&m_sampleFifo,
&SampleSinkFifo::dataReady,
this,
&FileSinkBaseband::handleData
);
m_running = false;
}
void FileSinkBaseband::feed(const SampleVector::const_iterator& begin, const SampleVector::const_iterator& end)
{
m_sampleFifo.write(begin, end);
}
void FileSinkBaseband::handleData()
{
QMutexLocker mutexLocker(&m_mutex);
while ((m_sampleFifo.fill() > 0) && (m_inputMessageQueue.size() == 0))
{
SampleVector::iterator part1begin;
SampleVector::iterator part1end;
SampleVector::iterator part2begin;
SampleVector::iterator part2end;
std::size_t count = m_sampleFifo.readBegin(m_sampleFifo.fill(), &part1begin, &part1end, &part2begin, &part2end);
// first part of FIFO data
if (part1begin != part1end) {
m_channelizer->feed(part1begin, part1end);
}
// second part of FIFO data (used when block wraps around)
if(part2begin != part2end) {
m_channelizer->feed(part2begin, part2end);
}
m_sampleFifo.readCommit((unsigned int) count);
}
}
void FileSinkBaseband::handleInputMessages()
{
Message* message;
while ((message = m_inputMessageQueue.pop()) != nullptr)
{
if (handleMessage(*message)) {
delete message;
}
}
}
bool FileSinkBaseband::handleMessage(const Message& cmd)
{
if (MsgConfigureFileSinkBaseband::match(cmd))
{
QMutexLocker mutexLocker(&m_mutex);
MsgConfigureFileSinkBaseband& cfg = (MsgConfigureFileSinkBaseband&) cmd;
qDebug() << "FileSinkBaseband::handleMessage: MsgConfigureFileSinkBaseband";
applySettings(cfg.getSettings(), cfg.getForce());
return true;
}
else if (DSPSignalNotification::match(cmd))
{
QMutexLocker mutexLocker(&m_mutex);
DSPSignalNotification& notif = (DSPSignalNotification&) cmd;
qDebug() << "FileSinkBaseband::handleMessage: DSPSignalNotification:"
<< " basebandSampleRate: " << notif.getSampleRate()
<< " cnterFrequency: " << notif.getCenterFrequency();
m_sampleFifo.setSize(SampleSinkFifo::getSizePolicy(notif.getSampleRate()));
m_centerFrequency = notif.getCenterFrequency();
m_channelizer->setBasebandSampleRate(notif.getSampleRate());
int desiredSampleRate = m_channelizer->getBasebandSampleRate() / (1<<m_settings.m_log2Decim);
m_channelizer->setChannelization(desiredSampleRate, m_settings.m_inputFrequencyOffset);
m_sink.applyChannelSettings(
m_channelizer->getChannelSampleRate(),
desiredSampleRate,
m_channelizer->getChannelFrequencyOffset(),
m_centerFrequency + m_settings.m_inputFrequencyOffset);
return true;
}
else if (MsgConfigureFileSinkWork::match(cmd))
{
QMutexLocker mutexLocker(&m_mutex);
MsgConfigureFileSinkWork& conf = (MsgConfigureFileSinkWork&) cmd;
qDebug() << "FileSinkBaseband::handleMessage: MsgConfigureFileSinkWork: " << conf.isWorking();
if (conf.isWorking()) {
m_sink.startRecording();
} else {
m_sink.stopRecording();
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}
return true;
}
else
{
return false;
}
}
void FileSinkBaseband::applySettings(const FileSinkSettings& settings, bool force)
{
qDebug() << "FileSinkBaseband::applySettings:"
<< "m_log2Decim:" << settings.m_log2Decim
<< "m_inputFrequencyOffset:" << settings.m_inputFrequencyOffset
<< "m_fileRecordName: " << settings.m_fileRecordName
<< "m_centerFrequency: " << m_centerFrequency
<< "force: " << force;
if ((settings.m_log2Decim != m_settings.m_log2Decim)
|| (settings.m_inputFrequencyOffset != m_settings.m_inputFrequencyOffset) || force)
{
int desiredSampleRate = m_channelizer->getBasebandSampleRate() / (1<<settings.m_log2Decim);
m_channelizer->setChannelization(desiredSampleRate, settings.m_inputFrequencyOffset);
m_sink.applyChannelSettings(
m_channelizer->getChannelSampleRate(),
desiredSampleRate,
m_channelizer->getChannelFrequencyOffset(),
m_centerFrequency + settings.m_inputFrequencyOffset);
}
if ((settings.m_spectrumSquelchMode != m_settings.m_spectrumSquelchMode) || force) {
if (!settings.m_spectrumSquelchMode) {
m_squelchOpen = false;
}
}
if ((settings.m_spectrumSquelch != m_settings.m_spectrumSquelch) || force) {
m_squelchLevel = CalcDb::powerFromdB(settings.m_spectrumSquelch);
}
m_sink.applySettings(settings, force);
m_settings = settings;
}
int FileSinkBaseband::getChannelSampleRate() const
{
return m_channelizer->getChannelSampleRate();
}
void FileSinkBaseband::tick()
{
if (m_spectrumSink && m_settings.m_spectrumSquelchMode)
{
m_specMax = m_spectrumSink->getSpecMax();
bool squelchOpen = m_specMax > m_squelchLevel;
if (squelchOpen != m_squelchOpen)
{
if (m_messageQueueToGUI)
{
FileSinkMessages::MsgReportSquelch *msg = FileSinkMessages::MsgReportSquelch::create(squelchOpen);
m_messageQueueToGUI->push(msg);
}
if (m_settings.m_squelchRecordingEnable) {
m_sink.squelchRecording(squelchOpen);
}
}
m_squelchOpen = squelchOpen;
}
}