#include <nfmdemod.h>

Inheritance diagram for NFMDemod:

Collaboration diagram for NFMDemod:

Classes
struct	MagSqLevelsStore

class	MsgConfigureChannelizer

class	MsgConfigureNFMDemod

class	MsgReportCTCSSFreq

Public Member Functions
	NFMDemod (DeviceAPI *deviceAPI)

	~NFMDemod ()

virtual void	destroy ()

virtual void	feed (const SampleVector::const_iterator &begin, const SampleVector::const_iterator &end, bool po)

virtual void	start ()

virtual void	stop ()

virtual bool	handleMessage (const Message &cmd)
	Processing of a message. Returns true if message has actually been processed. More...

virtual void	getIdentifier (QString &id)

virtual void	getTitle (QString &title)

virtual qint64	getCenterFrequency () const
	Applies to a default stream. More...

virtual QByteArray	serialize () const

virtual bool	deserialize (const QByteArray &data)

virtual int	getNbSinkStreams () const

virtual int	getNbSourceStreams () const

virtual qint64	getStreamCenterFrequency (int streamIndex, bool sinkElseSource) const

virtual int	webapiSettingsGet (SWGSDRangel::SWGChannelSettings &response, QString &errorMessage)

virtual int	webapiSettingsPutPatch (bool force, const QStringList &channelSettingsKeys, SWGSDRangel::SWGChannelSettings &response, QString &errorMessage)

virtual int	webapiReportGet (SWGSDRangel::SWGChannelReport &response, QString &errorMessage)

const Real *	getCtcssToneSet (int &nbTones) const

void	setSelectedCtcssIndex (int selectedCtcssIndex)

Real	getMag ()

bool	getSquelchOpen () const

void	getMagSqLevels (double &avg, double &peak, int &nbSamples)

Public Member Functions inherited from BasebandSampleSink
	BasebandSampleSink ()

virtual	~BasebandSampleSink ()

MessageQueue *	getInputMessageQueue ()
	Get the queue for asynchronous inbound communication. More...

virtual void	setMessageQueueToGUI (MessageQueue *queue)

MessageQueue *	getMessageQueueToGUI ()

Public Member Functions inherited from ChannelAPI
	ChannelAPI (const QString &name, StreamType streamType)

virtual	~ChannelAPI ()

virtual void	setName (const QString &name)

virtual const QString &	getName () const

int	getIndexInDeviceSet () const

void	setIndexInDeviceSet (int indexInDeviceSet)

int	getDeviceSetIndex () const

void	setDeviceSetIndex (int deviceSetIndex)

DeviceAPI *	getDeviceAPI ()

void	setDeviceAPI (DeviceAPI *deviceAPI)

uint64_t	getUID () const

StreamType	getStreamType () const

Static Public Attributes
static const QString	m_channelIdURI = "sdrangel.channel.nfmdemod"

static const QString	m_channelId = "NFMDemod"

Private Types
enum	RateState { RSInitialFill, RSRunning }

Private Slots
void	networkManagerFinished (QNetworkReply *reply)

Private Member Functions
void	applyChannelSettings (int inputSampleRate, int inputFrequencyOffset, bool force=false)

void	applySettings (const NFMDemodSettings &settings, bool force=false)

void	applyAudioSampleRate (int sampleRate)

void	webapiFormatChannelSettings (SWGSDRangel::SWGChannelSettings &response, const NFMDemodSettings &settings)

void	webapiFormatChannelReport (SWGSDRangel::SWGChannelReport &response)

void	webapiReverseSendSettings (QList< QString > &channelSettingsKeys, const NFMDemodSettings &settings, bool force)

void	processOneSample (Complex &ci)

Private Attributes
DeviceAPI *	m_deviceAPI

ThreadedBasebandSampleSink *	m_threadedChannelizer

DownChannelizer *	m_channelizer

int	m_inputSampleRate

int	m_inputFrequencyOffset

NFMDemodSettings	m_settings

uint32_t	m_audioSampleRate

float	m_discriCompensation
	compensation factor that depends on audio rate (1 for 48 kS/s) More...

bool	m_running

NCO	m_nco

Interpolator	m_interpolator

Real	m_interpolatorDistance

Real	m_interpolatorDistanceRemain

Lowpass< Real >	m_ctcssLowpass

Bandpass< Real >	m_bandpass

Lowpass< Real >	m_lowpass

CTCSSDetector	m_ctcssDetector

int	m_ctcssIndex

int	m_ctcssIndexSelected

int	m_sampleCount

int	m_squelchCount

int	m_squelchGate

Real	m_squelchLevel

bool	m_squelchOpen

bool	m_afSquelchOpen

double	m_magsq
	displayed averaged value More...

double	m_magsqSum

double	m_magsqPeak

int	m_magsqCount

MagSqLevelsStore	m_magSqLevelStore

MovingAverageUtil< Real, double, 32 >	m_movingAverage

AFSquelch	m_afSquelch

Real	m_agcLevel

DoubleBufferFIFO< Real >	m_squelchDelayLine

AudioVector	m_audioBuffer

uint	m_audioBufferFill

AudioFifo	m_audioFifo

QMutex	m_settingsMutex

PhaseDiscriminators	m_phaseDiscri

QNetworkAccessManager *	m_networkManager

QNetworkRequest	m_networkRequest

Static Private Attributes
static const int	m_udpBlockSize = 512

Additional Inherited Members
Public Types inherited from ChannelAPI
enum	StreamType { StreamSingleSink, StreamSingleSource, StreamMIMO }
	< This is the same enum as in PluginInterface More...

Protected Slots inherited from BasebandSampleSink
void	handleInputMessages ()

Protected Attributes inherited from BasebandSampleSink
MessageQueue	m_inputMessageQueue
	Queue for asynchronous inbound communication. More...

MessageQueue *	m_guiMessageQueue
	Input message queue to the GUI. More...

Detailed Description

Definition at line 50 of file nfmdemod.h.

Member Enumeration Documentation

◆ RateState

enum NFMDemod::RateState

private

Enumerator
RSInitialFill
RSRunning

Definition at line 203 of file nfmdemod.h.

                    {
         RSInitialFill,
         RSRunning
     };

Constructor & Destructor Documentation

◆ NFMDemod()

NFMDemod::NFMDemod ( DeviceAPI * deviceAPI )

Definition at line 55 of file nfmdemod.cpp.

References AudioDeviceManager::addAudioSink(), DSPEngine::getAudioDeviceManager(), BasebandSampleSink::getInputMessageQueue(), AudioDeviceManager::getOutputSampleRate(), DSPEngine::instance(), m_afSquelch, m_agcLevel, m_audioBuffer, m_audioBufferFill, m_audioFifo, m_audioSampleRate, m_channelId, m_ctcssDetector, m_discriCompensation, CTCSSDetector::setCoefficients(), AFSquelch::setCoefficients(), and sqrt().

Referenced by NFMDemod::MsgReportCTCSSFreq::MsgReportCTCSSFreq().

                                       :
         ChannelAPI(m_channelIdURI, ChannelAPI::StreamSingleSink),
         m_deviceAPI(devieAPI),
         m_inputSampleRate(48000),
         m_inputFrequencyOffset(0),
         m_running(false),
         m_ctcssIndex(0),
         m_sampleCount(0),
         m_squelchCount(0),
         m_squelchGate(4800),
         m_squelchLevel(-990),
         m_squelchOpen(false),
         m_afSquelchOpen(false),
         m_magsq(0.0f),
         m_magsqSum(0.0f),
         m_magsqPeak(0.0f),
         m_magsqCount(0),
         m_afSquelch(),
         m_squelchDelayLine(24000),
         m_audioFifo(48000),
         m_settingsMutex(QMutex::Recursive)
 {
     qDebug("NFMDemod::NFMDemod");
     setObjectName(m_channelId);
 
     m_audioBuffer.resize(1<<14);
     m_audioBufferFill = 0;
 
     m_agcLevel = 1.0;
 
     DSPEngine::instance()->getAudioDeviceManager()->addAudioSink(&m_audioFifo, getInputMessageQueue());
     m_audioSampleRate = DSPEngine::instance()->getAudioDeviceManager()->getOutputSampleRate();
     m_discriCompensation = (m_audioSampleRate/48000.0f);
     m_discriCompensation *= sqrt(m_discriCompensation);
 
     m_ctcssDetector.setCoefficients(m_audioSampleRate/16, m_audioSampleRate/8.0f); // 0.5s / 2 Hz resolution
     m_afSquelch.setCoefficients(m_audioSampleRate/2000, 600, m_audioSampleRate, 200, 0, afSqTones); // 0.5ms test period, 300ms average span, audio SR, 100ms attack, no decay
 
     m_ctcssLowpass.create(301, m_audioSampleRate, 250.0);
 
     applyChannelSettings(m_inputSampleRate, m_inputFrequencyOffset, true);
     applySettings(m_settings, 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*)));
 }

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◆ ~NFMDemod()

NFMDemod::~NFMDemod ( )

Definition at line 107 of file nfmdemod.cpp.

References DSPEngine::getAudioDeviceManager(), DSPEngine::instance(), m_audioFifo, m_channelizer, m_deviceAPI, m_networkManager, m_threadedChannelizer, networkManagerFinished(), AudioDeviceManager::removeAudioSink(), DeviceAPI::removeChannelSink(), and DeviceAPI::removeChannelSinkAPI().

Referenced by NFMDemod::MsgReportCTCSSFreq::MsgReportCTCSSFreq().

 {
     disconnect(m_networkManager, SIGNAL(finished(QNetworkReply*)), this, SLOT(networkManagerFinished(QNetworkReply*)));
     delete m_networkManager;
     DSPEngine::instance()->getAudioDeviceManager()->removeAudioSink(&m_audioFifo);
     m_deviceAPI->removeChannelSinkAPI(this);
     m_deviceAPI->removeChannelSink(m_threadedChannelizer);
     delete m_threadedChannelizer;
     delete m_channelizer;
 }

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Member Function Documentation

◆ applyAudioSampleRate()

void NFMDemod::applyAudioSampleRate ( int sampleRate )

private

Definition at line 444 of file nfmdemod.cpp.

References Lowpass< Type >::create(), Bandpass< Type >::create(), Interpolator::create(), NFMDemod::MsgConfigureChannelizer::create(), NFMDemodSettings::m_afBandwidth, m_afSquelch, m_bandpass, m_ctcssDetector, m_ctcssLowpass, NFMDemodSettings::m_inputFrequencyOffset, BasebandSampleSink::m_inputMessageQueue, m_inputSampleRate, m_interpolator, m_interpolatorDistance, m_interpolatorDistanceRemain, m_lowpass, NFMDemodSettings::m_rfBandwidth, m_settings, m_settingsMutex, m_squelchCount, NFMDemodSettings::m_squelchGate, m_squelchGate, MessageQueue::push(), CTCSSDetector::setCoefficients(), and AFSquelch::setCoefficients().

Referenced by applySettings(), and handleMessage().

 {
     qDebug("NFMDemod::applyAudioSampleRate: %d", sampleRate);
 
     MsgConfigureChannelizer* channelConfigMsg = MsgConfigureChannelizer::create(
             sampleRate, m_settings.m_inputFrequencyOffset);
     m_inputMessageQueue.push(channelConfigMsg);
 
     m_settingsMutex.lock();
 
     m_interpolator.create(16, m_inputSampleRate, m_settings.m_rfBandwidth / 2.2f);
     m_interpolatorDistanceRemain = 0;
     m_interpolatorDistance = (Real) m_inputSampleRate / (Real) sampleRate;
     m_ctcssLowpass.create(301, sampleRate, 250.0);
     m_bandpass.create(301, sampleRate, 300.0, m_settings.m_afBandwidth);
     m_lowpass.create(301, sampleRate, m_settings.m_afBandwidth);
     m_squelchGate = (sampleRate / 100) * m_settings.m_squelchGate; // gate is given in 10s of ms at 48000 Hz audio sample rate
     m_squelchCount = 0; // reset squelch open counter
     m_ctcssDetector.setCoefficients(sampleRate/16, sampleRate/8.0f); // 0.5s / 2 Hz resolution
 
     if (sampleRate < 16000) {
         m_afSquelch.setCoefficients(sampleRate/2000, 600, sampleRate, 200, 0, afSqTones_lowrate); // 0.5ms test period, 300ms average span, audio SR, 100ms attack, no decay
 
     } else {
         m_afSquelch.setCoefficients(sampleRate/2000, 600, sampleRate, 200, 0, afSqTones); // 0.5ms test period, 300ms average span, audio SR, 100ms attack, no decay
     }
 
     m_discriCompensation = (sampleRate/48000.0f);
     m_discriCompensation *= sqrt(m_discriCompensation);
 
     m_phaseDiscri.setFMScaling(sampleRate / static_cast<float>(m_settings.m_fmDeviation));
     m_audioFifo.setSize(sampleRate);
     m_squelchDelayLine.resize(sampleRate/2);
 
     m_settingsMutex.unlock();
 
     m_audioSampleRate = sampleRate;
 }

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◆ applyChannelSettings()

void NFMDemod::applyChannelSettings	(	int	inputSampleRate,
		int	inputFrequencyOffset,
		bool	force = `false`
	)

private

Definition at line 483 of file nfmdemod.cpp.

References Interpolator::create(), m_audioSampleRate, m_inputFrequencyOffset, m_inputSampleRate, m_interpolator, m_interpolatorDistance, m_interpolatorDistanceRemain, m_nco, NFMDemodSettings::m_rfBandwidth, m_settings, m_settingsMutex, and NCO::setFreq().

Referenced by handleMessage(), and start().

 {
     qDebug() << "NFMDemod::applyChannelSettings:"
             << " inputSampleRate: " << inputSampleRate
             << " inputFrequencyOffset: " << inputFrequencyOffset;
 
     if ((inputFrequencyOffset != m_inputFrequencyOffset) ||
         (inputSampleRate != m_inputSampleRate) || force)
     {
         m_nco.setFreq(-inputFrequencyOffset, inputSampleRate);
     }
 
     if ((inputSampleRate != m_inputSampleRate) || force)
     {
         m_settingsMutex.lock();
         m_interpolator.create(16, inputSampleRate, m_settings.m_rfBandwidth / 2.2f);
         m_interpolatorDistanceRemain = 0;
         m_interpolatorDistance =  (Real) inputSampleRate / (Real) m_audioSampleRate;
         m_settingsMutex.unlock();
     }
 
     m_inputSampleRate = inputSampleRate;
     m_inputFrequencyOffset = inputFrequencyOffset;
 }

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◆ applySettings()

void NFMDemod::applySettings	(	const NFMDemodSettings &	settings,
		bool	force = `false`
	)

private

Definition at line 508 of file nfmdemod.cpp.

Referenced by handleMessage().

 {
     qDebug() << "NFMDemod::applySettings:"
             << " m_inputFrequencyOffset: " << settings.m_inputFrequencyOffset
             << " m_rfBandwidth: " << settings.m_rfBandwidth
             << " m_afBandwidth: " << settings.m_afBandwidth
             << " m_fmDeviation: " << settings.m_fmDeviation
             << " m_volume: " << settings.m_volume
             << " m_squelchGate: " << settings.m_squelchGate
             << " m_deltaSquelch: " << settings.m_deltaSquelch
             << " m_squelch: " << settings.m_squelch
             << " m_ctcssIndex: " << settings.m_ctcssIndex
             << " m_ctcssOn: " << settings.m_ctcssOn
             << " m_highPass: " << settings.m_highPass
             << " m_audioMute: " << settings.m_audioMute
             << " m_audioDeviceName: " << settings.m_audioDeviceName
             << " 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;
 
     if ((settings.m_inputFrequencyOffset != m_settings.m_inputFrequencyOffset) || force) {
         reverseAPIKeys.append("inputFrequencyOffset");
     }
     if ((settings.m_volume != m_settings.m_volume) || force) {
         reverseAPIKeys.append("volume");
     }
     if ((settings.m_ctcssOn != m_settings.m_ctcssOn) || force) {
         reverseAPIKeys.append("ctcssOn");
     }
     if ((settings.m_audioMute != m_settings.m_audioMute) || force) {
         reverseAPIKeys.append("audioMute");
     }
     if ((settings.m_rgbColor != m_settings.m_rgbColor) || force) {
         reverseAPIKeys.append("rgbColor");
     }
     if ((settings.m_title != m_settings.m_title) || force) {
         reverseAPIKeys.append("title");
     }
 
     if ((settings.m_rfBandwidth != m_settings.m_rfBandwidth) || force)
     {
         reverseAPIKeys.append("rfBandwidth");
         m_settingsMutex.lock();
         m_interpolator.create(16, m_inputSampleRate, settings.m_rfBandwidth / 2.2);
         m_interpolatorDistanceRemain = 0;
         m_interpolatorDistance =  (Real) m_inputSampleRate / (Real) m_audioSampleRate;
         m_settingsMutex.unlock();
     }
 
     if ((settings.m_fmDeviation != m_settings.m_fmDeviation) || force)
     {
         reverseAPIKeys.append("fmDeviation");
         m_phaseDiscri.setFMScaling((8.0f*m_audioSampleRate) / static_cast<float>(settings.m_fmDeviation)); // integrate 4x factor
     }
 
     if ((settings.m_afBandwidth != m_settings.m_afBandwidth) || force)
     {
         reverseAPIKeys.append("afBandwidth");
         m_settingsMutex.lock();
         m_bandpass.create(301, m_audioSampleRate, 300.0, settings.m_afBandwidth);
         m_lowpass.create(301, m_audioSampleRate, settings.m_afBandwidth);
         m_settingsMutex.unlock();
     }
 
     if ((settings.m_squelchGate != m_settings.m_squelchGate) || force)
     {
         reverseAPIKeys.append("squelchGate");
         m_squelchGate = (m_audioSampleRate / 100) * settings.m_squelchGate; // gate is given in 10s of ms at 48000 Hz audio sample rate
         m_squelchCount = 0; // reset squelch open counter
     }
 
     if ((settings.m_squelch != m_settings.m_squelch) || force) {
         reverseAPIKeys.append("squelch");
     }
     if ((settings.m_deltaSquelch != m_settings.m_deltaSquelch) || force) {
         reverseAPIKeys.append("deltaSquelch");
     }
 
     if ((settings.m_squelch != m_settings.m_squelch) ||
         (settings.m_deltaSquelch != m_settings.m_deltaSquelch) || force)
     {
         if (settings.m_deltaSquelch)
         { // input is a value in negative centis
             m_squelchLevel = (- settings.m_squelch) / 100.0;
             m_afSquelch.setThreshold(m_squelchLevel);
             m_afSquelch.reset();
         }
         else
         { // input is a value in deci-Bels
             m_squelchLevel = std::pow(10.0, settings.m_squelch / 10.0);
             m_movingAverage.reset();
         }
 
         m_squelchCount = 0; // reset squelch open counter
     }
 
     if ((settings.m_ctcssIndex != m_settings.m_ctcssIndex) || force)
     {
         reverseAPIKeys.append("ctcssIndex");
         setSelectedCtcssIndex(settings.m_ctcssIndex);
     }
 
     if ((settings.m_highPass != m_settings.m_highPass) || force) {
         reverseAPIKeys.append("highPass");
     }
 
     if ((settings.m_audioDeviceName != m_settings.m_audioDeviceName) || force)
     {
         reverseAPIKeys.append("audioDeviceName");
         AudioDeviceManager *audioDeviceManager = DSPEngine::instance()->getAudioDeviceManager();
         int audioDeviceIndex = audioDeviceManager->getOutputDeviceIndex(settings.m_audioDeviceName);
         //qDebug("AMDemod::applySettings: audioDeviceName: %s audioDeviceIndex: %d", qPrintable(settings.m_audioDeviceName), audioDeviceIndex);
         audioDeviceManager->addAudioSink(&m_audioFifo, getInputMessageQueue(), audioDeviceIndex);
         uint32_t audioSampleRate = audioDeviceManager->getOutputSampleRate(audioDeviceIndex);
 
         if (m_audioSampleRate != audioSampleRate) {
             applyAudioSampleRate(audioSampleRate);
         }
     }
 
     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;
 }

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◆ deserialize()

bool NFMDemod::deserialize ( const QByteArray & data )

virtual

Implements ChannelAPI.

Definition at line 651 of file nfmdemod.cpp.

References NFMDemod::MsgConfigureNFMDemod::create(), NFMDemod::MsgConfigureChannelizer::create(), NFMDemodSettings::deserialize(), m_audioSampleRate, NFMDemodSettings::m_inputFrequencyOffset, BasebandSampleSink::m_inputMessageQueue, m_settings, MessageQueue::push(), and NFMDemodSettings::resetToDefaults().

Referenced by getCenterFrequency().

 {
     bool success = true;
 
     if (!m_settings.deserialize(data))
     {
         m_settings.resetToDefaults();
         success = false;
     }
 
     NFMDemod::MsgConfigureChannelizer* channelConfigMsg = NFMDemod::MsgConfigureChannelizer::create(
             m_audioSampleRate, m_settings.m_inputFrequencyOffset);
     m_inputMessageQueue.push(channelConfigMsg);
 
     MsgConfigureNFMDemod *msg = MsgConfigureNFMDemod::create(m_settings, true);
     m_inputMessageQueue.push(msg);
 
     return success;
 }

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◆ destroy()

virtual void NFMDemod::destroy ( )

inlinevirtual

Implements ChannelAPI.

Definition at line 121 of file nfmdemod.h.

References feed(), handleMessage(), start(), and stop().

121 { delete this; }

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◆ feed()

void NFMDemod::feed	(	const SampleVector::const_iterator &	begin,
		const SampleVector::const_iterator &	end,
		bool	po
	)

virtual

Implements BasebandSampleSink.

Definition at line 150 of file nfmdemod.cpp.

References Interpolator::decimate(), Interpolator::interpolate(), m_interpolator, m_interpolatorDistance, m_interpolatorDistanceRemain, m_nco, m_running, m_settingsMutex, NCO::nextIQ(), and processOneSample().

Referenced by destroy().

 {
     (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
         {
             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();
 }

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◆ getCenterFrequency()

virtual qint64 NFMDemod::getCenterFrequency ( ) const

inlinevirtual

Applies to a default stream.

Implements ChannelAPI.

Definition at line 130 of file nfmdemod.h.

References deserialize(), NFMDemodSettings::m_inputFrequencyOffset, NFMDemod::MsgConfigureNFMDemod::m_settings, and serialize().

130 { return m_settings.m_inputFrequencyOffset; }

NFMDemod::m_settings

NFMDemodSettings m_settings

Definition: nfmdemod.h:214

NFMDemodSettings::m_inputFrequencyOffset

int32_t m_inputFrequencyOffset

Definition: nfmdemodsettings.h:31

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◆ getCtcssToneSet()

const Real* NFMDemod::getCtcssToneSet ( int & nbTones ) const

inline

Definition at line 159 of file nfmdemod.h.

References CTCSSDetector::getNTones(), CTCSSDetector::getToneSet(), and m_ctcssDetector.

Referenced by NFMDemodGUI::NFMDemodGUI().

                                                     {
         nbTones = m_ctcssDetector.getNTones();
         return m_ctcssDetector.getToneSet();
     }

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◆ getIdentifier()

virtual void NFMDemod::getIdentifier ( QString & id )

inlinevirtual

Implements ChannelAPI.

Definition at line 128 of file nfmdemod.h.

128 { id = objectName(); }

◆ getMag()

Real NFMDemod::getMag ( )

inline

Definition at line 168 of file nfmdemod.h.

References m_magsq.

168 { return m_magsq; }

NFMDemod::m_magsq

double m_magsq

displayed averaged value

Definition: nfmdemod.h:236

◆ getMagSqLevels()

void NFMDemod::getMagSqLevels	(	double &	avg,
		double &	peak,
		int &	nbSamples
	)

inline

Definition at line 171 of file nfmdemod.h.

References NFMDemod::MagSqLevelsStore::m_magsq, m_magsq, m_magsqCount, m_magSqLevelStore, NFMDemod::MagSqLevelsStore::m_magsqPeak, m_magsqPeak, and m_magsqSum.

Referenced by NFMDemodGUI::tick(), and webapiFormatChannelReport().

     {
         if (m_magsqCount > 0)
         {
             m_magsq = m_magsqSum / m_magsqCount;
             m_magSqLevelStore.m_magsq = m_magsq;
             m_magSqLevelStore.m_magsqPeak = m_magsqPeak;
         }
 
         avg = m_magSqLevelStore.m_magsq;
         peak = m_magSqLevelStore.m_magsqPeak;
         nbSamples = m_magsqCount == 0 ? 1 : m_magsqCount;
 
         m_magsqSum = 0.0f;
         m_magsqPeak = 0.0f;
         m_magsqCount = 0;
     }

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◆ getNbSinkStreams()

virtual int NFMDemod::getNbSinkStreams ( ) const

inlinevirtual

Implements ChannelAPI.

Definition at line 135 of file nfmdemod.h.

135 { return 1; }

◆ getNbSourceStreams()

virtual int NFMDemod::getNbSourceStreams ( ) const

inlinevirtual

Implements ChannelAPI.

Definition at line 136 of file nfmdemod.h.

136 { return 0; }

◆ getSquelchOpen()

bool NFMDemod::getSquelchOpen ( ) const

inline

Definition at line 169 of file nfmdemod.h.

References m_squelchOpen.

Referenced by NFMDemodGUI::tick().

169 { return m_squelchOpen; }

NFMDemod::m_squelchOpen

bool m_squelchOpen

Definition: nfmdemod.h:234

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◆ getStreamCenterFrequency()

virtual qint64 NFMDemod::getStreamCenterFrequency	(	int	streamIndex,
		bool	sinkElseSource
	)		const

inlinevirtual

Implements ChannelAPI.

Definition at line 138 of file nfmdemod.h.

References NFMDemodSettings::m_inputFrequencyOffset, NFMDemod::MsgConfigureNFMDemod::m_settings, webapiReportGet(), webapiSettingsGet(), and webapiSettingsPutPatch().

     {
         (void) streamIndex;
         (void) sinkElseSource;
         return m_settings.m_inputFrequencyOffset;
     }

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◆ getTitle()

virtual void NFMDemod::getTitle ( QString & title )

inlinevirtual

Implements ChannelAPI.

Definition at line 129 of file nfmdemod.h.

References NFMDemod::MsgConfigureNFMDemod::m_settings, and NFMDemodSettings::m_title.

129 { title = m_settings.m_title; }

NFMDemodSettings::m_title

QString m_title

Definition: nfmdemodsettings.h:43

NFMDemod::m_settings

NFMDemodSettings m_settings

Definition: nfmdemod.h:214

◆ handleMessage()

bool NFMDemod::handleMessage ( const Message & cmd )

virtual

Processing of a message. Returns true if message has actually been processed.

Implements BasebandSampleSink.

Definition at line 379 of file nfmdemod.cpp.

References applyAudioSampleRate(), applyChannelSettings(), applySettings(), DownChannelizer::configure(), NFMDemod::MsgConfigureChannelizer::getCenterFrequency(), NFMDemod::MsgConfigureNFMDemod::getForce(), DownChannelizer::MsgChannelizerNotification::getFrequencyOffset(), BasebandSampleSink::getInputMessageQueue(), DownChannelizer::MsgChannelizerNotification::getSampleRate(), NFMDemod::MsgConfigureChannelizer::getSampleRate(), DSPConfigureAudio::getSampleRate(), NFMDemod::MsgConfigureNFMDemod::getSettings(), BasebandSampleSink::MsgThreadedSink::getThread(), m_audioSampleRate, m_channelizer, and Message::match().

Referenced by destroy().

 {
     if (DownChannelizer::MsgChannelizerNotification::match(cmd))
     {
         DownChannelizer::MsgChannelizerNotification& notif = (DownChannelizer::MsgChannelizerNotification&) cmd;
         qDebug() << "NFMDemod::handleMessage: DownChannelizer::MsgChannelizerNotification";
 
         applyChannelSettings(notif.getSampleRate(), notif.getFrequencyOffset());
 
         return true;
     }
     else if (MsgConfigureChannelizer::match(cmd))
     {
         MsgConfigureChannelizer& cfg = (MsgConfigureChannelizer&) cmd;
 
         qDebug() << "NFMDemod::handleMessage: MsgConfigureChannelizer:"
                  << " sampleRate: " << cfg.getSampleRate()
                  << " centerFrequency: " << cfg.getCenterFrequency();
 
         m_channelizer->configure(m_channelizer->getInputMessageQueue(),
             cfg.getSampleRate(),
             cfg.getCenterFrequency());
 
         return true;
     }
     else if (MsgConfigureNFMDemod::match(cmd))
     {
         MsgConfigureNFMDemod& cfg = (MsgConfigureNFMDemod&) cmd;
         qDebug() << "NFMDemod::handleMessage: MsgConfigureNFMDemod";
 
         applySettings(cfg.getSettings(), cfg.getForce());
 
         return true;
     }
     else if (BasebandSampleSink::MsgThreadedSink::match(cmd))
     {
         BasebandSampleSink::MsgThreadedSink& cfg = (BasebandSampleSink::MsgThreadedSink&) cmd;
         const QThread *thread = cfg.getThread();
         qDebug("NFMDemod::handleMessage: BasebandSampleSink::MsgThreadedSink: %p", thread);
         return true;
     }
     else if (DSPConfigureAudio::match(cmd))
     {
         DSPConfigureAudio& cfg = (DSPConfigureAudio&) cmd;
         uint32_t sampleRate = cfg.getSampleRate();
 
         qDebug() << "NFMDemod::handleMessage: DSPConfigureAudio:"
                 << " sampleRate: " << sampleRate;
 
         if (sampleRate != m_audioSampleRate) {
             applyAudioSampleRate(sampleRate);
         }
 
         return true;
     }
     else if (DSPSignalNotification::match(cmd))
     {
         return true;
     }
     else
     {
         return false;
     }
 }

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◆ networkManagerFinished

void NFMDemod::networkManagerFinished ( QNetworkReply * reply )

privateslot

Definition at line 918 of file nfmdemod.cpp.

Referenced by ~NFMDemod().

 {
     QNetworkReply::NetworkError replyError = reply->error();
 
     if (replyError)
     {
         qWarning() << "NFMDemod::networkManagerFinished:"
                 << " error(" << (int) replyError
                 << "): " << replyError
                 << ": " << reply->errorString();
         return;
     }
 
     QString answer = reply->readAll();
     answer.chop(1); // remove last \n
     qDebug("NFMDemod::networkManagerFinished: reply:\n%s", answer.toStdString().c_str());
 }

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◆ processOneSample()

void NFMDemod::processOneSample ( Complex & ci )

private

Definition at line 187 of file nfmdemod.cpp.

References CTCSSDetector::analyze(), AFSquelch::analyze(), NFMDemod::MsgReportCTCSSFreq::create(), AFSquelch::evaluate(), Lowpass< Type >::filter(), Bandpass< Type >::filter(), CTCSSDetector::getDetectedTone(), BasebandSampleSink::getMessageQueueToGUI(), CTCSSDetector::getToneSet(), m_afSquelch, m_afSquelchOpen, m_audioBuffer, m_audioBufferFill, m_audioFifo, NFMDemodSettings::m_audioMute, m_audioSampleRate, m_bandpass, m_ctcssDetector, m_ctcssIndex, m_ctcssIndexSelected, m_ctcssLowpass, NFMDemodSettings::m_ctcssOn, NFMDemodSettings::m_deltaSquelch, m_discriCompensation, NFMDemodSettings::m_highPass, m_lowpass, m_magsqCount, m_magsqPeak, m_magsqSum, m_movingAverage, m_phaseDiscri, m_sampleCount, m_settings, m_squelchCount, m_squelchDelayLine, m_squelchGate, m_squelchLevel, m_squelchOpen, NFMDemodSettings::m_volume, PhaseDiscriminators::phaseDiscriminatorDelta(), MessageQueue::push(), DoubleBufferFIFO< T >::readBack(), SDR_RX_SCALED, AudioFifo::write(), DoubleBufferFIFO< T >::write(), and DoubleBufferFIFO< T >::zeroBack().

Referenced by feed().

 {
     qint16 sample;
 
     double magsqRaw; // = ci.real()*ci.real() + c.imag()*c.imag();
     Real deviation;
 
     Real demod = m_phaseDiscri.phaseDiscriminatorDelta(ci, magsqRaw, deviation);
 
     Real magsq = magsqRaw / (SDR_RX_SCALED*SDR_RX_SCALED);
     m_movingAverage(magsq);
     m_magsqSum += magsq;
 
     if (magsq > m_magsqPeak)
     {
         m_magsqPeak = magsq;
     }
 
     m_magsqCount++;
     m_sampleCount++;
 
     // AF processing
 
     if (m_settings.m_deltaSquelch)
     {
         if (m_afSquelch.analyze(demod * m_discriCompensation))
         {
             m_afSquelchOpen = m_afSquelch.evaluate(); // ? m_squelchGate + m_squelchDecay : 0;
 
             if (!m_afSquelchOpen) {
                 m_squelchDelayLine.zeroBack(m_audioSampleRate/10); // zero out evaluation period
             }
         }
 
         if (m_afSquelchOpen)
         {
             m_squelchDelayLine.write(demod * m_discriCompensation);
 
             if (m_squelchCount < 2*m_squelchGate) {
                 m_squelchCount++;
             }
         }
         else
         {
             m_squelchDelayLine.write(0);
 
             if (m_squelchCount > 0) {
                 m_squelchCount--;
             }
         }
     }
     else
     {
         if ((Real) m_movingAverage < m_squelchLevel)
         {
             m_squelchDelayLine.write(0);
 
             if (m_squelchCount > 0) {
                 m_squelchCount--;
             }
         }
         else
         {
             m_squelchDelayLine.write(demod * m_discriCompensation);
 
             if (m_squelchCount < 2*m_squelchGate) {
                 m_squelchCount++;
             }
         }
     }
 
     m_squelchOpen = (m_squelchCount > m_squelchGate);
 
     if (m_settings.m_audioMute)
     {
         sample = 0;
     }
     else
     {
         if (m_squelchOpen)
         {
             if (m_settings.m_ctcssOn)
             {
                 Real ctcss_sample = m_ctcssLowpass.filter(demod * m_discriCompensation);
 
                 if ((m_sampleCount & 7) == 7) // decimate 48k -> 6k
                 {
                     if (m_ctcssDetector.analyze(&ctcss_sample))
                     {
                         int maxToneIndex;
 
                         if (m_ctcssDetector.getDetectedTone(maxToneIndex))
                         {
                             if (maxToneIndex+1 != m_ctcssIndex)
                             {
                                 if (getMessageQueueToGUI()) {
                                     MsgReportCTCSSFreq *msg = MsgReportCTCSSFreq::create(m_ctcssDetector.getToneSet()[maxToneIndex]);
                                     getMessageQueueToGUI()->push(msg);
                                 }
                                 m_ctcssIndex = maxToneIndex+1;
                             }
                         }
                         else
                         {
                             if (m_ctcssIndex != 0)
                             {
                                 if (getMessageQueueToGUI()) {
                                     MsgReportCTCSSFreq *msg = MsgReportCTCSSFreq::create(0);
                                     getMessageQueueToGUI()->push(msg);
                                 }
                                 m_ctcssIndex = 0;
                             }
                         }
                     }
                 }
             }
 
             if (m_settings.m_ctcssOn && m_ctcssIndexSelected && (m_ctcssIndexSelected != m_ctcssIndex))
             {
                 sample = 0;
             }
             else
             {
                 if (m_settings.m_highPass) {
                     sample = m_bandpass.filter(m_squelchDelayLine.readBack(m_squelchGate)) * m_settings.m_volume;
                 } else {
                     sample = m_lowpass.filter(m_squelchDelayLine.readBack(m_squelchGate)) * m_settings.m_volume * 301.0f;
                 }
             }
         }
         else
         {
             if (m_ctcssIndex != 0)
             {
                 if (getMessageQueueToGUI()) {
                     MsgReportCTCSSFreq *msg = MsgReportCTCSSFreq::create(0);
                     getMessageQueueToGUI()->push(msg);
                 }
 
                 m_ctcssIndex = 0;
             }
 
             sample = 0;
         }
     }
 
 
     m_audioBuffer[m_audioBufferFill].l = sample;
     m_audioBuffer[m_audioBufferFill].r = sample;
     ++m_audioBufferFill;
 
     if (m_audioBufferFill >= m_audioBuffer.size())
     {
         uint res = m_audioFifo.write((const quint8*)&m_audioBuffer[0], m_audioBufferFill);
 
         if (res != m_audioBufferFill)
         {
             qDebug("NFMDemod::feed: %u/%u audio samples written", res, m_audioBufferFill);
         }
 
         m_audioBufferFill = 0;
     }
 
     if (m_audioBufferFill > 0)
     {
         uint res = m_audioFifo.write((const quint8*)&m_audioBuffer[0], m_audioBufferFill);
 
         if (res != m_audioBufferFill)
         {
             qDebug("NFMDemod::feed: %u/%u tail samples written", res, m_audioBufferFill);
         }
 
         m_audioBufferFill = 0;
     }
 }

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◆ serialize()

QByteArray NFMDemod::serialize ( ) const

virtual

Implements ChannelAPI.

Definition at line 646 of file nfmdemod.cpp.

References m_settings, and NFMDemodSettings::serialize().

Referenced by getCenterFrequency().

 {
     return m_settings.serialize();
 }

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◆ setSelectedCtcssIndex()

void NFMDemod::setSelectedCtcssIndex ( int selectedCtcssIndex )

inline

Definition at line 164 of file nfmdemod.h.

References m_ctcssIndexSelected.

Referenced by applySettings().

                                                        {
         m_ctcssIndexSelected = selectedCtcssIndex;
     }

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◆ start()

void NFMDemod::start ( )

virtual

Implements BasebandSampleSink.

Definition at line 363 of file nfmdemod.cpp.

References applyChannelSettings(), AudioFifo::clear(), m_audioFifo, m_inputFrequencyOffset, m_inputSampleRate, m_phaseDiscri, m_running, m_squelchCount, and PhaseDiscriminators::reset().

Referenced by destroy().

 {
     qDebug() << "NFMDemod::start";
     m_squelchCount = 0;
     m_audioFifo.clear();
     m_phaseDiscri.reset();
     applyChannelSettings(m_inputSampleRate, m_inputFrequencyOffset, true);
     m_running = true;
 }

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◆ stop()

void NFMDemod::stop ( )

virtual

Implements BasebandSampleSink.

Definition at line 373 of file nfmdemod.cpp.

References m_running.

Referenced by destroy().

 {
     qDebug() << "NFMDemod::stop";
     m_running = false;
 }

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◆ webapiFormatChannelReport()

void NFMDemod::webapiFormatChannelReport ( SWGSDRangel::SWGChannelReport & response )

private

Definition at line 828 of file nfmdemod.cpp.

References CalcDb::dbPower(), getMagSqLevels(), SWGSDRangel::SWGChannelReport::getNfmDemodReport(), CTCSSDetector::getToneSet(), m_audioSampleRate, m_ctcssDetector, m_ctcssIndex, NFMDemodSettings::m_ctcssOn, m_inputSampleRate, m_settings, m_squelchOpen, SWGSDRangel::SWGNFMDemodReport::setAudioSampleRate(), SWGSDRangel::SWGNFMDemodReport::setChannelPowerDb(), SWGSDRangel::SWGNFMDemodReport::setChannelSampleRate(), SWGSDRangel::SWGNFMDemodReport::setCtcssTone(), and SWGSDRangel::SWGNFMDemodReport::setSquelch().

Referenced by webapiReportGet().

 {
     double magsqAvg, magsqPeak;
     int nbMagsqSamples;
     getMagSqLevels(magsqAvg, magsqPeak, nbMagsqSamples);
 
     response.getNfmDemodReport()->setChannelPowerDb(CalcDb::dbPower(magsqAvg));
     response.getNfmDemodReport()->setCtcssTone(m_settings.m_ctcssOn ? (m_ctcssIndex ? 0 : m_ctcssDetector.getToneSet()[m_ctcssIndex-1]) : 0);
     response.getNfmDemodReport()->setSquelch(m_squelchOpen ? 1 : 0);
     response.getNfmDemodReport()->setAudioSampleRate(m_audioSampleRate);
     response.getNfmDemodReport()->setChannelSampleRate(m_inputSampleRate);
 }

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◆ webapiFormatChannelSettings()

void NFMDemod::webapiFormatChannelSettings	(	SWGSDRangel::SWGChannelSettings &	response,
		const NFMDemodSettings &	settings
	)

private

Definition at line 787 of file nfmdemod.cpp.

Referenced by webapiSettingsGet(), and webapiSettingsPutPatch().

 {
     response.getNfmDemodSettings()->setAfBandwidth(settings.m_afBandwidth);
     response.getNfmDemodSettings()->setAudioMute(settings.m_audioMute ? 1 : 0);
     response.getNfmDemodSettings()->setHighPass(settings.m_highPass ? 1 : 0);
     response.getNfmDemodSettings()->setCtcssIndex(settings.m_ctcssIndex);
     response.getNfmDemodSettings()->setCtcssOn(settings.m_ctcssOn ? 1 : 0);
     response.getNfmDemodSettings()->setDeltaSquelch(settings.m_deltaSquelch ? 1 : 0);
     response.getNfmDemodSettings()->setFmDeviation(settings.m_fmDeviation);
     response.getNfmDemodSettings()->setInputFrequencyOffset(settings.m_inputFrequencyOffset);
     response.getNfmDemodSettings()->setRfBandwidth(settings.m_rfBandwidth);
     response.getNfmDemodSettings()->setRgbColor(settings.m_rgbColor);
     response.getNfmDemodSettings()->setSquelch(settings.m_squelch);
     response.getNfmDemodSettings()->setSquelchGate(settings.m_squelchGate);
     response.getNfmDemodSettings()->setVolume(settings.m_volume);
 
     if (response.getNfmDemodSettings()->getTitle()) {
         *response.getNfmDemodSettings()->getTitle() = settings.m_title;
     } else {
         response.getNfmDemodSettings()->setTitle(new QString(settings.m_title));
     }
 
     if (response.getNfmDemodSettings()->getAudioDeviceName()) {
         *response.getNfmDemodSettings()->getAudioDeviceName() = settings.m_audioDeviceName;
     } else {
         response.getNfmDemodSettings()->setAudioDeviceName(new QString(settings.m_audioDeviceName));
     }
 
     response.getNfmDemodSettings()->setUseReverseApi(settings.m_useReverseAPI ? 1 : 0);
 
     if (response.getNfmDemodSettings()->getReverseApiAddress()) {
         *response.getNfmDemodSettings()->getReverseApiAddress() = settings.m_reverseAPIAddress;
     } else {
         response.getNfmDemodSettings()->setReverseApiAddress(new QString(settings.m_reverseAPIAddress));
     }
 
     response.getNfmDemodSettings()->setReverseApiPort(settings.m_reverseAPIPort);
     response.getNfmDemodSettings()->setReverseApiDeviceIndex(settings.m_reverseAPIDeviceIndex);
     response.getNfmDemodSettings()->setReverseApiChannelIndex(settings.m_reverseAPIChannelIndex);
 }

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◆ webapiReportGet()

int NFMDemod::webapiReportGet	(	SWGSDRangel::SWGChannelReport &	response,
		QString &	errorMessage
	)

virtual

Reimplemented from ChannelAPI.

Definition at line 776 of file nfmdemod.cpp.

References SWGSDRangel::SWGChannelReport::getNfmDemodReport(), SWGSDRangel::SWGNFMDemodReport::init(), SWGSDRangel::SWGChannelReport::setNfmDemodReport(), and webapiFormatChannelReport().

Referenced by getStreamCenterFrequency().

 {
     (void) errorMessage;
     response.setNfmDemodReport(new SWGSDRangel::SWGNFMDemodReport());
     response.getNfmDemodReport()->init();
     webapiFormatChannelReport(response);
     return 200;
 }

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◆ webapiReverseSendSettings()

void NFMDemod::webapiReverseSendSettings	(	QList< QString > &	channelSettingsKeys,
		const NFMDemodSettings &	settings,
		bool	force
	)

private

Definition at line 841 of file nfmdemod.cpp.

Referenced by applySettings().

 {
     SWGSDRangel::SWGChannelSettings *swgChannelSettings = new SWGSDRangel::SWGChannelSettings();
     swgChannelSettings->setDirection(0); // single sink (Rx)
     swgChannelSettings->setOriginatorChannelIndex(getIndexInDeviceSet());
     swgChannelSettings->setOriginatorDeviceSetIndex(getDeviceSetIndex());
     swgChannelSettings->setChannelType(new QString("NFMDemod"));
     swgChannelSettings->setNfmDemodSettings(new SWGSDRangel::SWGNFMDemodSettings());
     SWGSDRangel::SWGNFMDemodSettings *swgNFMDemodSettings = swgChannelSettings->getNfmDemodSettings();
 
     // transfer data that has been modified. When force is on transfer all data except reverse API data
 
     if (channelSettingsKeys.contains("afBandwidth") || force) {
         swgNFMDemodSettings->setAfBandwidth(settings.m_afBandwidth);
     }
     if (channelSettingsKeys.contains("audioMute") || force) {
         swgNFMDemodSettings->setAudioMute(settings.m_audioMute ? 1 : 0);
     }
     if (channelSettingsKeys.contains("highPass") || force) {
         swgNFMDemodSettings->setAudioMute(settings.m_highPass ? 1 : 0);
     }
     if (channelSettingsKeys.contains("ctcssIndex") || force) {
         swgNFMDemodSettings->setCtcssIndex(settings.m_ctcssIndex);
     }
     if (channelSettingsKeys.contains("ctcssOn") || force) {
         swgNFMDemodSettings->setCtcssOn(settings.m_ctcssOn ? 1 : 0);
     }
     if (channelSettingsKeys.contains("deltaSquelch") || force) {
         swgNFMDemodSettings->setDeltaSquelch(settings.m_deltaSquelch ? 1 : 0);
     }
     if (channelSettingsKeys.contains("fmDeviation") || force) {
         swgNFMDemodSettings->setFmDeviation(settings.m_fmDeviation);
     }
     if (channelSettingsKeys.contains("inputFrequencyOffset") || force) {
         swgNFMDemodSettings->setInputFrequencyOffset(settings.m_inputFrequencyOffset);
     }
     if (channelSettingsKeys.contains("rfBandwidth") || force) {
         swgNFMDemodSettings->setRfBandwidth(settings.m_rfBandwidth);
     }
     if (channelSettingsKeys.contains("rgbColor") || force) {
         swgNFMDemodSettings->setRgbColor(settings.m_rgbColor);
     }
     if (channelSettingsKeys.contains("squelch") || force) {
         swgNFMDemodSettings->setSquelch(settings.m_squelch);
     }
     if (channelSettingsKeys.contains("squelchGate") || force) {
         swgNFMDemodSettings->setSquelchGate(settings.m_squelchGate);
     }
     if (channelSettingsKeys.contains("title") || force) {
         swgNFMDemodSettings->setTitle(new QString(settings.m_title));
     }
     if (channelSettingsKeys.contains("volume") || force) {
         swgNFMDemodSettings->setVolume(settings.m_volume);
     }
     if (channelSettingsKeys.contains("audioDeviceName") || force) {
         swgNFMDemodSettings->setAudioDeviceName(new QString(settings.m_audioDeviceName));
     }
 
     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;
 }

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◆ webapiSettingsGet()

int NFMDemod::webapiSettingsGet	(	SWGSDRangel::SWGChannelSettings &	response,
		QString &	errorMessage
	)

virtual

Reimplemented from ChannelAPI.

Definition at line 671 of file nfmdemod.cpp.

References SWGSDRangel::SWGChannelSettings::getNfmDemodSettings(), SWGSDRangel::SWGNFMDemodSettings::init(), m_settings, SWGSDRangel::SWGChannelSettings::setNfmDemodSettings(), and webapiFormatChannelSettings().

Referenced by getStreamCenterFrequency().

 {
     (void) errorMessage;
     response.setNfmDemodSettings(new SWGSDRangel::SWGNFMDemodSettings());
     response.getNfmDemodSettings()->init();
     webapiFormatChannelSettings(response, m_settings);
     return 200;
 }

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◆ webapiSettingsPutPatch()

int NFMDemod::webapiSettingsPutPatch	(	bool	force,
		const QStringList &	channelSettingsKeys,
		SWGSDRangel::SWGChannelSettings &	response,
		QString &	errorMessage
	)

virtual

Reimplemented from ChannelAPI.

Definition at line 682 of file nfmdemod.cpp.

Referenced by getStreamCenterFrequency().

 {
     (void) errorMessage;
     NFMDemodSettings settings = m_settings;
     bool frequencyOffsetChanged = false;
 
     if (channelSettingsKeys.contains("afBandwidth")) {
         settings.m_afBandwidth = response.getNfmDemodSettings()->getAfBandwidth();
     }
     if (channelSettingsKeys.contains("audioMute")) {
         settings.m_audioMute = response.getNfmDemodSettings()->getAudioMute() != 0;
     }
     if (channelSettingsKeys.contains("highPass")) {
         settings.m_highPass = response.getNfmDemodSettings()->getHighPass() != 0;
     }
     if (channelSettingsKeys.contains("ctcssIndex")) {
         settings.m_ctcssIndex = response.getNfmDemodSettings()->getCtcssIndex();
     }
     if (channelSettingsKeys.contains("ctcssOn")) {
         settings.m_ctcssOn = response.getNfmDemodSettings()->getCtcssOn() != 0;
     }
     if (channelSettingsKeys.contains("deltaSquelch")) {
         settings.m_deltaSquelch = response.getNfmDemodSettings()->getDeltaSquelch() != 0;
     }
     if (channelSettingsKeys.contains("fmDeviation")) {
         settings.m_fmDeviation = response.getNfmDemodSettings()->getFmDeviation();
     }
     if (channelSettingsKeys.contains("inputFrequencyOffset"))
     {
         settings.m_inputFrequencyOffset = response.getNfmDemodSettings()->getInputFrequencyOffset();
         frequencyOffsetChanged = true;
     }
     if (channelSettingsKeys.contains("rfBandwidth")) {
         settings.m_rfBandwidth = response.getNfmDemodSettings()->getRfBandwidth();
     }
     if (channelSettingsKeys.contains("rgbColor")) {
         settings.m_rgbColor = response.getNfmDemodSettings()->getRgbColor();
     }
     if (channelSettingsKeys.contains("squelch")) {
         settings.m_squelch = response.getNfmDemodSettings()->getSquelch();
     }
     if (channelSettingsKeys.contains("squelchGate")) {
         settings.m_squelchGate = response.getNfmDemodSettings()->getSquelchGate();
     }
     if (channelSettingsKeys.contains("title")) {
         settings.m_title = *response.getNfmDemodSettings()->getTitle();
     }
     if (channelSettingsKeys.contains("volume")) {
         settings.m_volume = response.getNfmDemodSettings()->getVolume();
     }
     if (channelSettingsKeys.contains("audioDeviceName")) {
         settings.m_audioDeviceName = *response.getNfmDemodSettings()->getAudioDeviceName();
     }
     if (channelSettingsKeys.contains("useReverseAPI")) {
         settings.m_useReverseAPI = response.getNfmDemodSettings()->getUseReverseApi() != 0;
     }
     if (channelSettingsKeys.contains("reverseAPIAddress")) {
         settings.m_reverseAPIAddress = *response.getNfmDemodSettings()->getReverseApiAddress();
     }
     if (channelSettingsKeys.contains("reverseAPIPort")) {
         settings.m_reverseAPIPort = response.getNfmDemodSettings()->getReverseApiPort();
     }
     if (channelSettingsKeys.contains("reverseAPIDeviceIndex")) {
         settings.m_reverseAPIDeviceIndex = response.getNfmDemodSettings()->getReverseApiDeviceIndex();
     }
     if (channelSettingsKeys.contains("reverseAPIChannelIndex")) {
         settings.m_reverseAPIChannelIndex = response.getNfmDemodSettings()->getReverseApiChannelIndex();
     }
 
     if (frequencyOffsetChanged)
     {
         MsgConfigureChannelizer* channelConfigMsg = MsgConfigureChannelizer::create(
                 m_audioSampleRate, settings.m_inputFrequencyOffset);
         m_inputMessageQueue.push(channelConfigMsg);
     }
 
     MsgConfigureNFMDemod *msg = MsgConfigureNFMDemod::create(settings, force);
     m_inputMessageQueue.push(msg);
 
     if (m_guiMessageQueue) // forward to GUI if any
     {
         MsgConfigureNFMDemod *msgToGUI = MsgConfigureNFMDemod::create(settings, force);
         m_guiMessageQueue->push(msgToGUI);
     }
 
     webapiFormatChannelSettings(response, settings);
 
     return 200;
 }

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Member Data Documentation

◆ m_afSquelch

AFSquelch NFMDemod::m_afSquelch

private

Definition at line 243 of file nfmdemod.h.

Referenced by applyAudioSampleRate(), applySettings(), NFMDemod(), and processOneSample().

◆ m_afSquelchOpen

bool NFMDemod::m_afSquelchOpen

private

Definition at line 235 of file nfmdemod.h.

Referenced by processOneSample().

◆ m_agcLevel

Real NFMDemod::m_agcLevel

private

Definition at line 244 of file nfmdemod.h.

Referenced by NFMDemod().

◆ m_audioBuffer

AudioVector NFMDemod::m_audioBuffer

private

Definition at line 247 of file nfmdemod.h.

Referenced by NFMDemod(), and processOneSample().

◆ m_audioBufferFill

uint NFMDemod::m_audioBufferFill

private

Definition at line 248 of file nfmdemod.h.

Referenced by NFMDemod(), and processOneSample().

◆ m_audioFifo

AudioFifo NFMDemod::m_audioFifo

private

Definition at line 249 of file nfmdemod.h.

Referenced by applySettings(), NFMDemod(), processOneSample(), start(), and ~NFMDemod().

◆ m_audioSampleRate

uint32_t NFMDemod::m_audioSampleRate

private

Definition at line 215 of file nfmdemod.h.

Referenced by applyChannelSettings(), applySettings(), deserialize(), handleMessage(), NFMDemod(), processOneSample(), webapiFormatChannelReport(), and webapiSettingsPutPatch().

◆ m_bandpass

Bandpass<Real> NFMDemod::m_bandpass

private

Definition at line 224 of file nfmdemod.h.

Referenced by applyAudioSampleRate(), applySettings(), and processOneSample().

◆ m_channelId

const QString NFMDemod::m_channelId = "NFMDemod"

static

Definition at line 190 of file nfmdemod.h.

Referenced by NFMPlugin::initPlugin(), and NFMDemod().

◆ m_channelIdURI

const QString NFMDemod::m_channelIdURI = "sdrangel.channel.nfmdemod"

static

Definition at line 189 of file nfmdemod.h.

Referenced by NFMPlugin::initPlugin(), and NFMDemodGUI::NFMDemodGUI().

◆ m_channelizer

DownChannelizer* NFMDemod::m_channelizer

private

Definition at line 210 of file nfmdemod.h.

Referenced by handleMessage(), and ~NFMDemod().

◆ m_ctcssDetector

CTCSSDetector NFMDemod::m_ctcssDetector

private

Definition at line 226 of file nfmdemod.h.

Referenced by applyAudioSampleRate(), getCtcssToneSet(), NFMDemod(), processOneSample(), and webapiFormatChannelReport().

◆ m_ctcssIndex

int NFMDemod::m_ctcssIndex

private

Definition at line 227 of file nfmdemod.h.

Referenced by processOneSample(), and webapiFormatChannelReport().

◆ m_ctcssIndexSelected

int NFMDemod::m_ctcssIndexSelected

private

Definition at line 228 of file nfmdemod.h.

Referenced by processOneSample(), and setSelectedCtcssIndex().

◆ m_ctcssLowpass

Lowpass<Real> NFMDemod::m_ctcssLowpass

private

Definition at line 223 of file nfmdemod.h.

Referenced by applyAudioSampleRate(), and processOneSample().

◆ m_deviceAPI

DeviceAPI* NFMDemod::m_deviceAPI

private

Definition at line 208 of file nfmdemod.h.

Referenced by ~NFMDemod().

◆ m_discriCompensation

float NFMDemod::m_discriCompensation

private

compensation factor that depends on audio rate (1 for 48 kS/s)

Definition at line 216 of file nfmdemod.h.

Referenced by NFMDemod(), and processOneSample().

◆ m_inputFrequencyOffset

int NFMDemod::m_inputFrequencyOffset

private

Definition at line 213 of file nfmdemod.h.

Referenced by applyChannelSettings(), and start().

◆ m_inputSampleRate

int NFMDemod::m_inputSampleRate

private

Definition at line 212 of file nfmdemod.h.

Referenced by applyAudioSampleRate(), applyChannelSettings(), applySettings(), start(), and webapiFormatChannelReport().

◆ m_interpolator

Interpolator NFMDemod::m_interpolator

private

Definition at line 220 of file nfmdemod.h.

Referenced by applyAudioSampleRate(), applyChannelSettings(), applySettings(), and feed().

◆ m_interpolatorDistance

Real NFMDemod::m_interpolatorDistance

private

Definition at line 221 of file nfmdemod.h.

Referenced by applyAudioSampleRate(), applyChannelSettings(), applySettings(), and feed().

◆ m_interpolatorDistanceRemain

Real NFMDemod::m_interpolatorDistanceRemain

private

Definition at line 222 of file nfmdemod.h.

Referenced by applyAudioSampleRate(), applyChannelSettings(), applySettings(), and feed().

◆ m_lowpass

Lowpass<Real> NFMDemod::m_lowpass

private

Definition at line 225 of file nfmdemod.h.

Referenced by applyAudioSampleRate(), applySettings(), and processOneSample().

◆ m_magsq

double NFMDemod::m_magsq

private

displayed averaged value

Definition at line 236 of file nfmdemod.h.

Referenced by getMag(), and getMagSqLevels().

◆ m_magsqCount

int NFMDemod::m_magsqCount

private

Definition at line 239 of file nfmdemod.h.

Referenced by getMagSqLevels(), and processOneSample().

◆ m_magSqLevelStore

MagSqLevelsStore NFMDemod::m_magSqLevelStore

private

Definition at line 240 of file nfmdemod.h.

Referenced by getMagSqLevels().

◆ m_magsqPeak

double NFMDemod::m_magsqPeak

private

Definition at line 238 of file nfmdemod.h.

Referenced by getMagSqLevels(), and processOneSample().

◆ m_magsqSum

double NFMDemod::m_magsqSum

private

Definition at line 237 of file nfmdemod.h.

Referenced by getMagSqLevels(), and processOneSample().

◆ m_movingAverage

MovingAverageUtil<Real, double, 32> NFMDemod::m_movingAverage

private

Definition at line 242 of file nfmdemod.h.

Referenced by applySettings(), and processOneSample().

◆ m_nco

NCO NFMDemod::m_nco

private

Definition at line 219 of file nfmdemod.h.

Referenced by applyChannelSettings(), and feed().

◆ m_networkManager

QNetworkAccessManager* NFMDemod::m_networkManager

private

Definition at line 255 of file nfmdemod.h.

Referenced by webapiReverseSendSettings(), and ~NFMDemod().

◆ m_networkRequest

QNetworkRequest NFMDemod::m_networkRequest

private

Definition at line 256 of file nfmdemod.h.

Referenced by webapiReverseSendSettings().

◆ m_phaseDiscri

PhaseDiscriminators NFMDemod::m_phaseDiscri

private

Definition at line 253 of file nfmdemod.h.

Referenced by applySettings(), processOneSample(), and start().

◆ m_running

bool NFMDemod::m_running

private

Definition at line 217 of file nfmdemod.h.

Referenced by feed(), start(), and stop().

◆ m_sampleCount

int NFMDemod::m_sampleCount

private

Definition at line 229 of file nfmdemod.h.

Referenced by processOneSample().

◆ m_settings

NFMDemodSettings NFMDemod::m_settings

private

Definition at line 214 of file nfmdemod.h.

Referenced by applyAudioSampleRate(), applyChannelSettings(), applySettings(), deserialize(), processOneSample(), serialize(), webapiFormatChannelReport(), webapiSettingsGet(), and webapiSettingsPutPatch().

◆ m_settingsMutex

QMutex NFMDemod::m_settingsMutex

private

Definition at line 251 of file nfmdemod.h.

Referenced by applyAudioSampleRate(), applyChannelSettings(), applySettings(), and feed().

◆ m_squelchCount

int NFMDemod::m_squelchCount

private

Definition at line 230 of file nfmdemod.h.

Referenced by applyAudioSampleRate(), applySettings(), processOneSample(), and start().

◆ m_squelchDelayLine

DoubleBufferFIFO<Real> NFMDemod::m_squelchDelayLine

private

Definition at line 245 of file nfmdemod.h.

Referenced by processOneSample().

◆ m_squelchGate

int NFMDemod::m_squelchGate

private

Definition at line 231 of file nfmdemod.h.

Referenced by applyAudioSampleRate(), applySettings(), and processOneSample().

◆ m_squelchLevel

Real NFMDemod::m_squelchLevel

private

Definition at line 233 of file nfmdemod.h.

Referenced by applySettings(), and processOneSample().

◆ m_squelchOpen

bool NFMDemod::m_squelchOpen

private

Definition at line 234 of file nfmdemod.h.

Referenced by getSquelchOpen(), processOneSample(), and webapiFormatChannelReport().

◆ m_threadedChannelizer

ThreadedBasebandSampleSink* NFMDemod::m_threadedChannelizer

private

Definition at line 209 of file nfmdemod.h.

Referenced by ~NFMDemod().

◆ m_udpBlockSize

const int NFMDemod::m_udpBlockSize = 512

staticprivate

Definition at line 258 of file nfmdemod.h.

The documentation for this class was generated from the following files:

plugins/channelrx/demodnfm/nfmdemod.h
plugins/channelrx/demodnfm/nfmdemod.cpp

Classes

Public Member Functions

Static Public Attributes

Private Types

Private Slots

Private Member Functions

Private Attributes

Static Private Attributes

Additional Inherited Members

Detailed Description

Member Enumeration Documentation

◆ RateState

Constructor & Destructor Documentation

◆ NFMDemod()

◆ ~NFMDemod()

Member Function Documentation

◆ applyAudioSampleRate()

◆ applyChannelSettings()

◆ applySettings()

◆ deserialize()

◆ destroy()

◆ feed()

◆ getCenterFrequency()

◆ getCtcssToneSet()

◆ getIdentifier()

◆ getMag()

◆ getMagSqLevels()

◆ getNbSinkStreams()

◆ getNbSourceStreams()

◆ getSquelchOpen()

◆ getStreamCenterFrequency()

◆ getTitle()

◆ handleMessage()

◆ networkManagerFinished

◆ processOneSample()

◆ serialize()

◆ setSelectedCtcssIndex()

◆ start()

◆ stop()

◆ webapiFormatChannelReport()

◆ webapiFormatChannelSettings()

◆ webapiReportGet()

◆ webapiReverseSendSettings()

◆ webapiSettingsGet()

◆ webapiSettingsPutPatch()

Member Data Documentation

◆ m_afSquelch

◆ m_afSquelchOpen

◆ m_agcLevel

◆ m_audioBuffer

◆ m_audioBufferFill

◆ m_audioFifo

◆ m_audioSampleRate

◆ m_bandpass

◆ m_channelId

◆ m_channelIdURI

◆ m_channelizer

◆ m_ctcssDetector

◆ m_ctcssIndex

◆ m_ctcssIndexSelected

◆ m_ctcssLowpass

◆ m_deviceAPI

◆ m_discriCompensation

◆ m_inputFrequencyOffset

◆ m_inputSampleRate

◆ m_interpolator

◆ m_interpolatorDistance

◆ m_interpolatorDistanceRemain

◆ m_lowpass

◆ m_magsq

◆ m_magsqCount

◆ m_magSqLevelStore

◆ m_magsqPeak

◆ m_magsqSum

◆ m_movingAverage

◆ m_nco

◆ m_networkManager

◆ m_networkRequest

◆ m_phaseDiscri

◆ m_running