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sdrangel/plugins/channelrx/freqtracker/freqtracker.cpp

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///////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2019 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 "freqtracker.h"
#include <QTime>
#include <QTimer>
#include <QDebug>
#include <QNetworkAccessManager>
#include <QNetworkReply>
#include <QBuffer>
#include <stdio.h>
#include <complex.h>
#include "SWGChannelSettings.h"
#include "SWGFreqTrackerSettings.h"
#include "SWGChannelReport.h"
#include "SWGFreqTrackerReport.h"
#include "dsp/downchannelizer.h"
#include "audio/audiooutput.h"
#include "dsp/dspengine.h"
#include "dsp/threadedbasebandsamplesink.h"
#include "dsp/dspcommands.h"
#include "dsp/fftfilt.h"
#include "device/deviceapi.h"
#include "util/db.h"
#include "util/stepfunctions.h"
MESSAGE_CLASS_DEFINITION(FreqTracker::MsgConfigureFreqTracker, Message)
MESSAGE_CLASS_DEFINITION(FreqTracker::MsgSampleRateNotification, Message)
MESSAGE_CLASS_DEFINITION(FreqTracker::MsgConfigureChannelizer, Message)
const QString FreqTracker::m_channelIdURI = "sdrangel.channel.freqtracker";
const QString FreqTracker::m_channelId = "FreqTracker";
const int FreqTracker::m_udpBlockSize = 512;
FreqTracker::FreqTracker(DeviceAPI *deviceAPI) :
ChannelSinkAPI(m_channelIdURI),
m_deviceAPI(deviceAPI),
m_deviceSampleRate(48000),
m_inputSampleRate(48000),
m_inputFrequencyOffset(0),
m_channelSampleRate(48000),
m_running(false),
m_squelchOpen(false),
m_squelchGate(0),
m_magsqSum(0.0f),
m_magsqPeak(0.0f),
m_magsqCount(0),
m_timerConnected(false),
m_tickCount(0),
m_lastCorrAbs(0),
m_avgDeltaFreq(0.0),
m_settingsMutex(QMutex::Recursive)
{
setObjectName(m_channelId);
#ifdef USE_INTERNAL_TIMER
#warning "Uses internal timer"
m_timer = new QTimer();
m_timer->start(50);
#else
m_timer = &DSPEngine::instance()->getMasterTimer();
#endif
m_magsq = 0.0;
m_rrcFilter = new fftfilt(m_settings.m_rfBandwidth / m_channelSampleRate, 2*1024);
m_pll.computeCoefficients(0.002f, 0.5f, 10.0f); // bandwidth, damping factor, loop gain
applyChannelSettings(m_inputSampleRate, m_inputFrequencyOffset, true);
m_channelizer = new DownChannelizer(this);
m_threadedChannelizer = new ThreadedBasebandSampleSink(m_channelizer, this);
m_deviceAPI->addChannelSink(m_threadedChannelizer);
m_deviceAPI->addChannelSinkAPI(this);
m_networkManager = new QNetworkAccessManager();
connect(m_networkManager, SIGNAL(finished(QNetworkReply*)), this, SLOT(networkManagerFinished(QNetworkReply*)));
}
FreqTracker::~FreqTracker()
{
disconnectTimer();
#ifdef USE_INTERNAL_TIMER
m_timer->stop();
delete m_timer;
#endif
disconnect(m_networkManager, SIGNAL(finished(QNetworkReply*)), this, SLOT(networkManagerFinished(QNetworkReply*)));
delete m_networkManager;
m_deviceAPI->removeChannelSinkAPI(this);
m_deviceAPI->removeChannelSink(m_threadedChannelizer);
delete m_threadedChannelizer;
delete m_channelizer;
delete m_rrcFilter;
}
void FreqTracker::feed(const SampleVector::const_iterator& begin, const SampleVector::const_iterator& end, bool firstOfBurst)
{
(void) firstOfBurst;
Complex ci;
if (!m_running) {
return;
}
m_settingsMutex.lock();
for (SampleVector::const_iterator it = begin; it != end; ++it)
{
Complex c(it->real(), it->imag());
c *= m_nco.nextIQ();
if (m_interpolatorDistance < 1.0f) // interpolate
{
processOneSample(ci);
while (m_interpolator.interpolate(&m_interpolatorDistanceRemain, c, &ci))
{
processOneSample(ci);
}
m_interpolatorDistanceRemain += m_interpolatorDistance;
}
else // decimate
{
if (m_interpolator.decimate(&m_interpolatorDistanceRemain, c, &ci))
{
processOneSample(ci);
m_interpolatorDistanceRemain += m_interpolatorDistance;
}
}
}
m_settingsMutex.unlock();
}
void FreqTracker::processOneSample(Complex &ci)
{
fftfilt::cmplx *sideband;
int n_out;
if (m_settings.m_rrc)
{
n_out = m_rrcFilter->runFilt(ci, &sideband);
}
else
{
n_out = 1;
sideband = &ci;
}
for (int i = 0; i < n_out; i++)
{
Real re = sideband[i].real() / SDR_RX_SCALEF;
Real im = sideband[i].imag() / SDR_RX_SCALEF;
Real magsq = re*re + im*im;
m_movingAverage(magsq);
m_magsq = m_movingAverage.asDouble();
m_magsqSum += magsq;
if (magsq > m_magsqPeak)
{
m_magsqPeak = magsq;
}
m_magsqCount++;
if (m_magsq < m_squelchLevel)
{
if (m_squelchGate > 0)
{
if (m_squelchCount > 0) {
m_squelchCount--;
}
m_squelchOpen = m_squelchCount >= m_squelchGate;
}
else
{
m_squelchOpen = false;
}
}
else
{
if (m_squelchGate > 0)
{
if (m_squelchCount < 2*m_squelchGate) {
m_squelchCount++;
}
m_squelchOpen = m_squelchCount >= m_squelchGate;
}
else
{
m_squelchOpen = true;
}
}
if (m_squelchOpen)
{
if (m_settings.m_trackerType == FreqTrackerSettings::TrackerFLL)
{
m_fll.feed(re, im);
}
else if (m_settings.m_trackerType == FreqTrackerSettings::TrackerPLL)
{
m_pll.feed(re, im);
}
}
}
}
void FreqTracker::start()
{
qDebug("FreqTracker::start");
m_squelchCount = 0;
applyChannelSettings(m_inputSampleRate, m_inputFrequencyOffset, true);
m_running = true;
}
void FreqTracker::stop()
{
qDebug("FreqTracker::stop");
m_running = false;
}
Real FreqTracker::getFrequency() const
{
if (m_settings.m_trackerType == FreqTrackerSettings::TrackerPLL) {
return (m_pll.getFreq() * m_channelSampleRate) / (2.0 * M_PI);
} else if (m_settings.m_trackerType == FreqTrackerSettings::TrackerFLL) {
return (m_fll.getFreq() * m_channelSampleRate) / (2.0 * M_PI);
} else {
return 0;
}
}
bool FreqTracker::handleMessage(const Message& cmd)
{
if (DSPSignalNotification::match(cmd))
{
DSPSignalNotification& notif = (DSPSignalNotification&) cmd;
m_deviceSampleRate = notif.getSampleRate();
qDebug() << "FreqTracker::handleMessage: DSPSignalNotification:"
<< " m_deviceSampleRate: " << m_deviceSampleRate
<< " centerFrequency: " << notif.getCenterFrequency();
configureChannelizer();
return true;
}
else if (DownChannelizer::MsgChannelizerNotification::match(cmd))
{
DownChannelizer::MsgChannelizerNotification& notif = (DownChannelizer::MsgChannelizerNotification&) cmd;
if (!m_settings.m_tracking) {
qDebug() << "FreqTracker::handleMessage: MsgChannelizerNotification:"
<< " inputSampleRate: " << notif.getSampleRate()
<< " inputFrequencyOffset: " << notif.getFrequencyOffset();
}
applyChannelSettings(notif.getSampleRate(), notif.getFrequencyOffset());
setInterpolator();
return true;
}
else if (MsgConfigureFreqTracker::match(cmd))
{
MsgConfigureFreqTracker& cfg = (MsgConfigureFreqTracker&) cmd;
qDebug() << "FreqTracker::handleMessage: MsgConfigureFreqTracker";
applySettings(cfg.getSettings(), cfg.getForce());
return true;
}
else
{
return false;
}
}
void FreqTracker::applyChannelSettings(int inputSampleRate, int inputFrequencyOffset, bool force)
{
if (!m_settings.m_tracking) {
qDebug() << "FreqTracker::applyChannelSettings:"
<< " inputSampleRate: " << inputSampleRate
<< " inputFrequencyOffset: " << inputFrequencyOffset;
}
if ((m_inputFrequencyOffset != inputFrequencyOffset) ||
(m_inputSampleRate != inputSampleRate) || force)
{
m_nco.setFreq(-inputFrequencyOffset, inputSampleRate);
}
if ((m_inputSampleRate != inputSampleRate) || force) {
setInterpolator();
}
m_inputSampleRate = inputSampleRate;
m_inputFrequencyOffset = inputFrequencyOffset;
}
void FreqTracker::applySettings(const FreqTrackerSettings& settings, bool force)
{
if (!settings.m_tracking)
{
qDebug() << "FreqTracker::applySettings:"
<< " m_inputFrequencyOffset: " << settings.m_inputFrequencyOffset
<< " m_rfBandwidth: " << settings.m_rfBandwidth
<< " m_log2Decim: " << settings.m_log2Decim
<< " m_squelch: " << settings.m_squelch
<< " m_rgbColor: " << settings.m_rgbColor
<< " m_title: " << settings.m_title
<< " m_alphaEMA: " << settings.m_alphaEMA
<< " m_tracking: " << settings.m_tracking
<< " m_trackerType: " << settings.m_trackerType
<< " m_pllPskOrder: " << settings.m_pllPskOrder
<< " m_rrc: " << settings.m_rrc
<< " m_rrcRolloff: " << settings.m_rrcRolloff
<< " m_useReverseAPI: " << settings.m_useReverseAPI
<< " m_reverseAPIAddress: " << settings.m_reverseAPIAddress
<< " m_reverseAPIPort: " << settings.m_reverseAPIPort
<< " m_reverseAPIDeviceIndex: " << settings.m_reverseAPIDeviceIndex
<< " m_reverseAPIChannelIndex: " << settings.m_reverseAPIChannelIndex
<< " force: " << force;
}
QList<QString> reverseAPIKeys;
bool updateChannelizer = false;
bool updateInterpolator = false;
if ((m_settings.m_inputFrequencyOffset != settings.m_inputFrequencyOffset) || force)
{
reverseAPIKeys.append("inputFrequencyOffset");
updateChannelizer = true;
}
if ((m_settings.m_log2Decim != settings.m_log2Decim) || force)
{
reverseAPIKeys.append("log2Decim");
updateChannelizer = true;
}
if ((m_settings.m_rfBandwidth != settings.m_rfBandwidth) || force)
{
updateInterpolator = true;
reverseAPIKeys.append("rfBandwidth");
}
if ((m_settings.m_squelch != settings.m_squelch) || force)
{
m_squelchLevel = CalcDb::powerFromdB(settings.m_squelch);
reverseAPIKeys.append("squelch");
}
if ((m_settings.m_rgbColor != settings.m_rgbColor) || force) {
reverseAPIKeys.append("rgbColor");
}
if ((m_settings.m_title != settings.m_title) || force) {
reverseAPIKeys.append("title");
}
if ((m_settings.m_alphaEMA != settings.m_alphaEMA) || force) {
reverseAPIKeys.append("alphaEMA");
}
if ((m_settings.m_tracking != settings.m_tracking) || force)
{
reverseAPIKeys.append("tracking");
m_avgDeltaFreq = 0.0;
m_lastCorrAbs = 0;
if (settings.m_tracking)
{
m_pll.reset();
m_fll.reset();
}
}
if ((m_settings.m_trackerType != settings.m_trackerType) || force)
{
reverseAPIKeys.append("trackerType");
m_lastCorrAbs = 0;
m_avgDeltaFreq = 0.0;
if (settings.m_trackerType == FreqTrackerSettings::TrackerFLL) {
m_fll.reset();
} else if (settings.m_trackerType == FreqTrackerSettings::TrackerPLL) {
m_pll.reset();
}
if (settings.m_trackerType == FreqTrackerSettings::TrackerNone) {
disconnectTimer();
} else {
connectTimer();
}
}
if ((m_settings.m_pllPskOrder != settings.m_pllPskOrder) || force)
{
reverseAPIKeys.append("pllPskOrder");
if (settings.m_pllPskOrder < 32) {
m_pll.setPskOrder(settings.m_pllPskOrder);
}
}
if ((m_settings.m_rrc != settings.m_rrc) || force) {
reverseAPIKeys.append("rrc");
}
if ((m_settings.m_rrcRolloff != settings.m_rrcRolloff) || force)
{
reverseAPIKeys.append("rrcRolloff");
updateInterpolator = true;
}
if ((m_settings.m_squelchGate != settings.m_squelchGate) || force)
{
reverseAPIKeys.append("squelchGate");
updateInterpolator = true;
}
if (settings.m_useReverseAPI)
{
bool fullUpdate = ((m_settings.m_useReverseAPI != settings.m_useReverseAPI) && settings.m_useReverseAPI) ||
(m_settings.m_reverseAPIAddress != settings.m_reverseAPIAddress) ||
(m_settings.m_reverseAPIPort != settings.m_reverseAPIPort) ||
(m_settings.m_reverseAPIDeviceIndex != settings.m_reverseAPIDeviceIndex) ||
(m_settings.m_reverseAPIChannelIndex != settings.m_reverseAPIChannelIndex);
webapiReverseSendSettings(reverseAPIKeys, settings, fullUpdate || force);
}
m_settings = settings;
if (updateChannelizer) {
configureChannelizer();
} else if (updateInterpolator) {
setInterpolator();
}
}
void FreqTracker::setInterpolator()
{
m_settingsMutex.lock();
m_interpolator.create(16, m_inputSampleRate, m_settings.m_rfBandwidth / 2.2f);
m_interpolatorDistanceRemain = 0;
m_interpolatorDistance = (Real) m_inputSampleRate / (Real) m_channelSampleRate;
m_rrcFilter->create_rrc_filter(m_settings.m_rfBandwidth / m_channelSampleRate, m_settings.m_rrcRolloff / 100.0);
m_squelchGate = (m_channelSampleRate / 100) * m_settings.m_squelchGate; // gate is given in 10s of ms at channel sample rate
m_settingsMutex.unlock();
}
void FreqTracker::configureChannelizer()
{
if (m_channelSampleRate != m_deviceSampleRate / (1<<m_settings.m_log2Decim))
{
m_channelSampleRate = m_deviceSampleRate / (1<<m_settings.m_log2Decim);
m_pll.setSampleRate(m_channelSampleRate);
m_fll.setSampleRate(m_channelSampleRate);
}
if (!m_settings.m_tracking) {
qDebug() << "FreqTracker::configureChannelizer:"
<< " sampleRate: " << m_channelSampleRate
<< " inputFrequencyOffset: " << m_settings.m_inputFrequencyOffset;
}
m_channelizer->configure(m_channelizer->getInputMessageQueue(),
m_channelSampleRate,
m_settings.m_inputFrequencyOffset);
if (m_guiMessageQueue)
{
MsgSampleRateNotification *msg = MsgSampleRateNotification::create(
m_deviceSampleRate / (1<<m_settings.m_log2Decim),
m_settings.m_inputFrequencyOffset);
m_guiMessageQueue->push(msg);
}
}
void FreqTracker::connectTimer()
{
if (!m_timerConnected)
{
m_tickCount = 0;
connect(m_timer, SIGNAL(timeout()), this, SLOT(tick()));
m_timerConnected = true;
}
}
void FreqTracker::disconnectTimer()
{
if (m_timerConnected)
{
disconnect(m_timer, SIGNAL(timeout()), this, SLOT(tick()));
m_timerConnected = false;
}
}
QByteArray FreqTracker::serialize() const
{
return m_settings.serialize();
}
bool FreqTracker::deserialize(const QByteArray& data)
{
if (m_settings.deserialize(data))
{
MsgConfigureFreqTracker *msg = MsgConfigureFreqTracker::create(m_settings, true);
m_inputMessageQueue.push(msg);
return true;
}
else
{
m_settings.resetToDefaults();
MsgConfigureFreqTracker *msg = MsgConfigureFreqTracker::create(m_settings, true);
m_inputMessageQueue.push(msg);
return false;
}
}
int FreqTracker::webapiSettingsGet(
SWGSDRangel::SWGChannelSettings& response,
QString& errorMessage)
{
(void) errorMessage;
response.setFreqTrackerSettings(new SWGSDRangel::SWGFreqTrackerSettings());
response.getFreqTrackerSettings()->init();
webapiFormatChannelSettings(response, m_settings);
return 200;
}
int FreqTracker::webapiSettingsPutPatch(
bool force,
const QStringList& channelSettingsKeys,
SWGSDRangel::SWGChannelSettings& response,
QString& errorMessage)
{
(void) errorMessage;
FreqTrackerSettings settings = m_settings;
if (channelSettingsKeys.contains("inputFrequencyOffset")) {
settings.m_inputFrequencyOffset = response.getFreqTrackerSettings()->getInputFrequencyOffset();
}
if (channelSettingsKeys.contains("rfBandwidth")) {
settings.m_rfBandwidth = response.getFreqTrackerSettings()->getRfBandwidth();
}
if (channelSettingsKeys.contains("log2Decim")) {
settings.m_log2Decim = response.getFreqTrackerSettings()->getLog2Decim();
}
if (channelSettingsKeys.contains("squelch")) {
settings.m_squelch = response.getFreqTrackerSettings()->getSquelch();
}
if (channelSettingsKeys.contains("rgbColor")) {
settings.m_rgbColor = response.getFreqTrackerSettings()->getRgbColor();
}
if (channelSettingsKeys.contains("title")) {
settings.m_title = *response.getFreqTrackerSettings()->getTitle();
}
if (channelSettingsKeys.contains("alphaEMA")) {
float alphaEMA = response.getFreqTrackerSettings()->getAlphaEma();
settings.m_alphaEMA = alphaEMA < 0.01 ? 0.01 : alphaEMA > 1.0 ? 1.0 : alphaEMA;
}
if (channelSettingsKeys.contains("tracking")) {
settings.m_tracking = response.getFreqTrackerSettings()->getTracking() ? 1 : 0;
}
if (channelSettingsKeys.contains("trackerType"))
{
int32_t trackerTypeCode = response.getFreqTrackerSettings()->getTrackerType();
settings.m_trackerType = trackerTypeCode < 0 ?
FreqTrackerSettings::TrackerFLL : trackerTypeCode > 1 ?
FreqTrackerSettings::TrackerPLL : (FreqTrackerSettings::TrackerType) trackerTypeCode;
}
if (channelSettingsKeys.contains("pllPskOrder")) {
settings.m_pllPskOrder = response.getFreqTrackerSettings()->getPllPskOrder();
}
if (channelSettingsKeys.contains("rrc")) {
settings.m_rrc = response.getFreqTrackerSettings()->getRrc() ? 1 : 0;
}
if (channelSettingsKeys.contains("rrcRolloff")) {
settings.m_rrcRolloff = response.getFreqTrackerSettings()->getRrcRolloff();
}
if (channelSettingsKeys.contains("useReverseAPI")) {
settings.m_useReverseAPI = response.getAmDemodSettings()->getUseReverseApi() != 0;
}
if (channelSettingsKeys.contains("reverseAPIAddress")) {
settings.m_reverseAPIAddress = *response.getAmDemodSettings()->getReverseApiAddress();
}
if (channelSettingsKeys.contains("reverseAPIPort")) {
settings.m_reverseAPIPort = response.getAmDemodSettings()->getReverseApiPort();
}
if (channelSettingsKeys.contains("reverseAPIDeviceIndex")) {
settings.m_reverseAPIDeviceIndex = response.getAmDemodSettings()->getReverseApiDeviceIndex();
}
if (channelSettingsKeys.contains("reverseAPIChannelIndex")) {
settings.m_reverseAPIChannelIndex = response.getAmDemodSettings()->getReverseApiChannelIndex();
}
MsgConfigureFreqTracker *msg = MsgConfigureFreqTracker::create(settings, force);
m_inputMessageQueue.push(msg);
qDebug("FreqTracker::webapiSettingsPutPatch: forward to GUI: %p", m_guiMessageQueue);
if (m_guiMessageQueue) // forward to GUI if any
{
MsgConfigureFreqTracker *msgToGUI = MsgConfigureFreqTracker::create(settings, force);
m_guiMessageQueue->push(msgToGUI);
}
webapiFormatChannelSettings(response, settings);
return 200;
}
int FreqTracker::webapiReportGet(
SWGSDRangel::SWGChannelReport& response,
QString& errorMessage)
{
(void) errorMessage;
response.setFreqTrackerReport(new SWGSDRangel::SWGFreqTrackerReport());
response.getFreqTrackerReport()->init();
webapiFormatChannelReport(response);
return 200;
}
void FreqTracker::webapiFormatChannelSettings(SWGSDRangel::SWGChannelSettings& response, const FreqTrackerSettings& settings)
{
response.getFreqTrackerSettings()->setInputFrequencyOffset(settings.m_inputFrequencyOffset);
response.getFreqTrackerSettings()->setRfBandwidth(settings.m_rfBandwidth);
response.getFreqTrackerSettings()->setRgbColor(settings.m_rgbColor);
response.getFreqTrackerSettings()->setSquelch(settings.m_squelch);
if (response.getFreqTrackerSettings()->getTitle()) {
*response.getFreqTrackerSettings()->getTitle() = settings.m_title;
} else {
response.getFreqTrackerSettings()->setTitle(new QString(settings.m_title));
}
response.getFreqTrackerSettings()->setTrackerType((int) m_settings.m_trackerType);
response.getFreqTrackerSettings()->setUseReverseApi(settings.m_useReverseAPI ? 1 : 0);
if (response.getFreqTrackerSettings()->getReverseApiAddress()) {
*response.getFreqTrackerSettings()->getReverseApiAddress() = settings.m_reverseAPIAddress;
} else {
response.getFreqTrackerSettings()->setReverseApiAddress(new QString(settings.m_reverseAPIAddress));
}
response.getFreqTrackerSettings()->setReverseApiPort(settings.m_reverseAPIPort);
response.getFreqTrackerSettings()->setReverseApiDeviceIndex(settings.m_reverseAPIDeviceIndex);
response.getFreqTrackerSettings()->setReverseApiChannelIndex(settings.m_reverseAPIChannelIndex);
}
void FreqTracker::webapiFormatChannelReport(SWGSDRangel::SWGChannelReport& response)
{
double magsqAvg, magsqPeak;
int nbMagsqSamples;
getMagSqLevels(magsqAvg, magsqPeak, nbMagsqSamples);
response.getFreqTrackerReport()->setChannelPowerDb(CalcDb::dbPower(magsqAvg));
response.getFreqTrackerReport()->setSquelch(m_squelchOpen ? 1 : 0);
response.getFreqTrackerReport()->setSampleRate(m_channelSampleRate);
response.getFreqTrackerReport()->setChannelSampleRate(m_inputSampleRate);
}
void FreqTracker::webapiReverseSendSettings(QList<QString>& channelSettingsKeys, const FreqTrackerSettings& settings, bool force)
{
SWGSDRangel::SWGChannelSettings *swgChannelSettings = new SWGSDRangel::SWGChannelSettings();
swgChannelSettings->setDirection(0); // single sink (Rx)
swgChannelSettings->setOriginatorChannelIndex(getIndexInDeviceSet());
swgChannelSettings->setOriginatorDeviceSetIndex(getDeviceSetIndex());
swgChannelSettings->setChannelType(new QString("FreqTracker"));
swgChannelSettings->setFreqTrackerSettings(new SWGSDRangel::SWGFreqTrackerSettings());
SWGSDRangel::SWGFreqTrackerSettings *swgFreqTrackerSettings = swgChannelSettings->getFreqTrackerSettings();
// transfer data that has been modified. When force is on transfer all data except reverse API data
if (channelSettingsKeys.contains("inputFrequencyOffset") || force) {
swgFreqTrackerSettings->setInputFrequencyOffset(settings.m_inputFrequencyOffset);
}
if (channelSettingsKeys.contains("rfBandwidth") || force) {
swgFreqTrackerSettings->setRfBandwidth(settings.m_rfBandwidth);
}
if (channelSettingsKeys.contains("rgbColor") || force) {
swgFreqTrackerSettings->setRgbColor(settings.m_rgbColor);
}
if (channelSettingsKeys.contains("squelch") || force) {
swgFreqTrackerSettings->setSquelch(settings.m_squelch);
}
if (channelSettingsKeys.contains("title") || force) {
swgFreqTrackerSettings->setTitle(new QString(settings.m_title));
}
if (channelSettingsKeys.contains("trackerType") || force) {
swgFreqTrackerSettings->setTrackerType((int) settings.m_trackerType);
}
QString channelSettingsURL = QString("http://%1:%2/sdrangel/deviceset/%3/channel/%4/settings")
.arg(settings.m_reverseAPIAddress)
.arg(settings.m_reverseAPIPort)
.arg(settings.m_reverseAPIDeviceIndex)
.arg(settings.m_reverseAPIChannelIndex);
m_networkRequest.setUrl(QUrl(channelSettingsURL));
m_networkRequest.setHeader(QNetworkRequest::ContentTypeHeader, "application/json");
QBuffer *buffer=new QBuffer();
buffer->open((QBuffer::ReadWrite));
buffer->write(swgChannelSettings->asJson().toUtf8());
buffer->seek(0);
// Always use PATCH to avoid passing reverse API settings
m_networkManager->sendCustomRequest(m_networkRequest, "PATCH", buffer);
delete swgChannelSettings;
}
void FreqTracker::networkManagerFinished(QNetworkReply *reply)
{
QNetworkReply::NetworkError replyError = reply->error();
if (replyError)
{
qWarning() << "FreqTracker::networkManagerFinished:"
<< " error(" << (int) replyError
<< "): " << replyError
<< ": " << reply->errorString();
return;
}
QString answer = reply->readAll();
answer.chop(1); // remove last \n
qDebug("FreqTracker::networkManagerFinished: reply:\n%s", answer.toStdString().c_str());
}
void FreqTracker::tick()
{
if (getSquelchOpen()) {
m_avgDeltaFreq = m_settings.m_alphaEMA*getFrequency() + (1.0 - m_settings.m_alphaEMA)*m_avgDeltaFreq;
}
if (m_tickCount < 19)
{
m_tickCount++;
}
else
{
if ((m_settings.m_tracking) && getSquelchOpen())
{
uint32_t decayDivider = 1000.0 * m_settings.m_alphaEMA;
int decayAmount = m_channelSampleRate < decayDivider ? 1 : m_channelSampleRate / decayDivider;
int trim = m_channelSampleRate / 1000;
if (m_lastCorrAbs < decayAmount)
{
m_lastCorrAbs = m_avgDeltaFreq < 0 ? -m_avgDeltaFreq : m_avgDeltaFreq;
if (m_lastCorrAbs > trim)
{
FreqTrackerSettings settings = m_settings;
settings.m_inputFrequencyOffset += m_avgDeltaFreq;
applySettings(settings);
}
}
else
{
m_lastCorrAbs -= decayAmount;
}
}
m_tickCount = 0;
}
}
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