#include <upchannelizer.h>

Inheritance diagram for UpChannelizer:

Collaboration diagram for UpChannelizer:

Classes
struct	FilterStage

class	MsgChannelizerNotification

class	MsgSetChannelizer

Signals
void	outputSampleRateChanged ()

Public Member Functions
	UpChannelizer (BasebandSampleSource *sampleSink)

virtual	~UpChannelizer ()

void	configure (MessageQueue *messageQueue, int sampleRate, int centerFrequency)

void	set (MessageQueue *messageQueue, unsigned int log2Interp, unsigned int filterChainHash)

int	getOutputSampleRate () const

virtual void	start ()

virtual void	stop ()

virtual void	pull (Sample &sample)

virtual void	pullAudio (int nbSamples)

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

Public Member Functions inherited from BasebandSampleSource
	BasebandSampleSource ()

virtual	~BasebandSampleSource ()

void	feed (SampleSourceFifo *sampleFifo, int nbSamples)

SampleSourceFifo &	getSampleSourceFifo ()

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

virtual void	setMessageQueueToGUI (MessageQueue *queue)

MessageQueue *	getMessageQueueToGUI ()

void	setDeviceSampleSourceFifo (SampleSourceFifo *deviceSampleFifo)

Protected Types
typedef std::vector< FilterStage * >	FilterStages

Protected Member Functions
void	applyConfiguration ()

void	applySetting (unsigned int log2Decim, unsigned int filterChainHash)

bool	signalContainsChannel (Real sigStart, Real sigEnd, Real chanStart, Real chanEnd) const

Real	createFilterChain (Real sigStart, Real sigEnd, Real chanStart, Real chanEnd)

double	setFilterChain (const std::vector< unsigned int > &stageIndexes)
	returns offset in ratio of sample rate More...

void	freeFilterChain ()

Protected Member Functions inherited from BasebandSampleSource
void	handleWriteToFifo (SampleSourceFifo *sampleFifo, int nbSamples)

Protected Attributes
FilterStages	m_filterStages

bool	m_filterChainSetMode

std::vector< Sample >	m_stageSamples

BasebandSampleSource *	m_sampleSource
	Modulator. More...

int	m_outputSampleRate

int	m_requestedInputSampleRate

int	m_requestedCenterFrequency

int	m_currentInputSampleRate

int	m_currentCenterFrequency

SampleVector	m_sampleBuffer

Sample	m_sampleIn

QMutex	m_mutex

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

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

SampleSourceFifo	m_sampleFifo
	Internal FIFO for multi-channel processing. More...

SampleSourceFifo *	m_deviceSampleFifo
	Reference to the device FIFO for single channel processing. More...

Additional Inherited Members
Protected Slots inherited from BasebandSampleSource
void	handleInputMessages ()

void	handleWriteToFifo (int nbSamples)

void	handleWriteToDeviceFifo (int nbSamples)

Detailed Description

Definition at line 37 of file upchannelizer.h.

Member Typedef Documentation

◆ FilterStages

typedef std::vector<FilterStage*> UpChannelizer::FilterStages

protected

Definition at line 123 of file upchannelizer.h.

Constructor & Destructor Documentation

◆ UpChannelizer()

UpChannelizer::UpChannelizer ( BasebandSampleSource * sampleSink )

Definition at line 31 of file upchannelizer.cpp.

                                                                :
     m_filterChainSetMode(false),
     m_sampleSource(sampleSource),
     m_outputSampleRate(0),
     m_requestedInputSampleRate(0),
     m_requestedCenterFrequency(0),
     m_currentInputSampleRate(0),
     m_currentCenterFrequency(0)
 {
     QString name = "UpChannelizer(" + m_sampleSource->objectName() + ")";
     setObjectName(name);
 }

◆ ~UpChannelizer()

UpChannelizer::~UpChannelizer ( )

virtual

Definition at line 44 of file upchannelizer.cpp.

References freeFilterChain().

 {
     freeFilterChain();
 }

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Member Function Documentation

◆ applyConfiguration()

void UpChannelizer::applyConfiguration ( )

protected

Definition at line 194 of file upchannelizer.cpp.

References UpChannelizer::MsgChannelizerNotification::create(), createFilterChain(), freeFilterChain(), BasebandSampleSource::getInputMessageQueue(), m_currentCenterFrequency, m_currentInputSampleRate, m_filterChainSetMode, m_filterStages, m_mutex, m_outputSampleRate, m_requestedCenterFrequency, m_requestedInputSampleRate, m_sampleSource, and MessageQueue::push().

Referenced by handleMessage().

 {
     m_filterChainSetMode = false;
 
     if (m_outputSampleRate == 0)
     {
         qDebug() << "UpChannelizer::applyConfiguration: aborting (out=0):"
                 << " out =" << m_outputSampleRate
                 << ", req =" << m_requestedInputSampleRate
                 << ", in =" << m_currentInputSampleRate
                 << ", fc =" << m_currentCenterFrequency;
         return;
     }
 
 
     m_mutex.lock();
 
     freeFilterChain();
 
     m_currentCenterFrequency = createFilterChain(
         m_outputSampleRate / -2, m_outputSampleRate / 2,
         m_requestedCenterFrequency - m_requestedInputSampleRate / 2, m_requestedCenterFrequency + m_requestedInputSampleRate / 2);
 
     m_mutex.unlock();
 
     m_currentInputSampleRate = m_outputSampleRate / (1 << m_filterStages.size());
 
     qDebug() << "UpChannelizer::applyConfiguration:"
             << " out=" << m_outputSampleRate
             << ", req=" << m_requestedInputSampleRate
             << ", in=" << m_currentInputSampleRate
             << ", fc=" << m_currentCenterFrequency;
 
     if (m_sampleSource != 0)
     {
         MsgChannelizerNotification *notif = MsgChannelizerNotification::create(m_outputSampleRate, m_currentInputSampleRate, m_currentCenterFrequency);
         m_sampleSource->getInputMessageQueue()->push(notif);
     }
 }

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◆ applySetting()

void UpChannelizer::applySetting	(	unsigned int	log2Decim,
		unsigned int	filterChainHash
	)

protected

Definition at line 234 of file upchannelizer.cpp.

References HBFilterChainConverter::convertToIndexes(), UpChannelizer::MsgChannelizerNotification::create(), UpChannelizer::FilterStage::FilterStage(), freeFilterChain(), BasebandSampleSource::getInputMessageQueue(), m_currentCenterFrequency, m_currentInputSampleRate, m_filterChainSetMode, m_filterStages, m_mutex, m_outputSampleRate, m_requestedCenterFrequency, m_requestedInputSampleRate, m_sampleSource, MessageQueue::push(), and setFilterChain().

Referenced by handleMessage().

 {
     m_filterChainSetMode = true;
     std::vector<unsigned int> stageIndexes;
     m_currentCenterFrequency = m_outputSampleRate * HBFilterChainConverter::convertToIndexes(log2Interp, filterChainHash, stageIndexes);
     m_requestedCenterFrequency = m_currentCenterFrequency;
 
     m_mutex.lock();
     freeFilterChain();
     m_currentCenterFrequency = m_outputSampleRate * setFilterChain(stageIndexes);
     m_mutex.unlock();
 
     m_currentInputSampleRate = m_outputSampleRate / (1 << m_filterStages.size());
     m_requestedInputSampleRate = m_currentInputSampleRate;
 
     qDebug() << "UpChannelizer::applySetting in=" << m_outputSampleRate
             << ", out=" << m_currentInputSampleRate
             << ", fc=" << m_currentCenterFrequency;
 
     if (m_sampleSource != 0)
     {
         MsgChannelizerNotification *notif = MsgChannelizerNotification::create(m_outputSampleRate, m_currentInputSampleRate, m_currentCenterFrequency);
         m_sampleSource->getInputMessageQueue()->push(notif);
     }
 }

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◆ configure()

void UpChannelizer::configure	(	MessageQueue *	messageQueue,
		int	sampleRate,
		int	centerFrequency
	)

Definition at line 49 of file upchannelizer.cpp.

References MessageQueue::push().

Referenced by UDPSource::handleMessage(), AMMod::handleMessage(), WFMMod::handleMessage(), NFMMod::handleMessage(), SSBMod::handleMessage(), FreeDVMod::handleMessage(), and ATVMod::handleMessage().

 {
     Message* cmd = new DSPConfigureChannelizer(sampleRate, centerFrequency);
     messageQueue->push(cmd);
 }

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◆ createFilterChain()

Real UpChannelizer::createFilterChain	(	Real	sigStart,
		Real	sigEnd,
		Real	chanStart,
		Real	chanEnd
	)

protected

Definition at line 315 of file upchannelizer.cpp.

References UpChannelizer::FilterStage::FilterStage(), m_filterStages, m_stageSamples, UpChannelizer::FilterStage::ModeCenter, UpChannelizer::FilterStage::ModeLowerHalf, UpChannelizer::FilterStage::ModeUpperHalf, and signalContainsChannel().

Referenced by applyConfiguration().

 {
     Real sigBw = sigEnd - sigStart;
     Real rot = sigBw / 4;
     Sample s;
 
     qDebug() << "UpChannelizer::createFilterChain: start:"
             << " sig: ["  << sigStart << ":" << sigEnd << "]"
             << " BW: " << sigBw
             << " chan: [" << chanStart << ":" << chanEnd << "]"
             << " rot: " << rot;
 
     // check if it fits into the left half
     if(signalContainsChannel(sigStart, sigStart + sigBw / 2.0, chanStart, chanEnd))
     {
         qDebug() << "UpChannelizer::createFilterChain: take left half (rotate by +1/4 and decimate by 2):"
                 << " [" << m_filterStages.size() << "]"
                 << " sig: ["  << sigStart << ":" << sigStart + sigBw / 2.0 << "]";
         m_filterStages.push_back(new FilterStage(FilterStage::ModeLowerHalf));
         m_stageSamples.push_back(s);
         return createFilterChain(sigStart, sigStart + sigBw / 2.0, chanStart, chanEnd);
     }
 
     // check if it fits into the right half
     if(signalContainsChannel(sigEnd - sigBw / 2.0f, sigEnd, chanStart, chanEnd))
     {
         qDebug() << "UpChannelizer::createFilterChain: take right half (rotate by -1/4 and decimate by 2):"
                 << " [" << m_filterStages.size() << "]"
                 << " sig: ["  << sigEnd - sigBw / 2.0f << ":" << sigEnd << "]";
         m_filterStages.push_back(new FilterStage(FilterStage::ModeUpperHalf));
         m_stageSamples.push_back(s);
         return createFilterChain(sigEnd - sigBw / 2.0f, sigEnd, chanStart, chanEnd);
     }
 
     // check if it fits into the center
     // Was: if(signalContainsChannel(sigStart + rot + safetyMargin, sigStart + rot + sigBw / 2.0f - safetyMargin, chanStart, chanEnd)) {
     if(signalContainsChannel(sigStart + rot, sigEnd - rot, chanStart, chanEnd))
     {
         qDebug() << "UpChannelizer::createFilterChain: take center half (decimate by 2):"
                 << " [" << m_filterStages.size() << "]"
                 << " sig: ["  << sigStart + rot << ":" << sigEnd - rot << "]";
         m_filterStages.push_back(new FilterStage(FilterStage::ModeCenter));
         m_stageSamples.push_back(s);
         // Was: return createFilterChain(sigStart + rot, sigStart + sigBw / 2.0f + rot, chanStart, chanEnd);
         return createFilterChain(sigStart + rot, sigEnd - rot, chanStart, chanEnd);
     }
 
     Real ofs = ((chanEnd - chanStart) / 2.0 + chanStart) - ((sigEnd - sigStart) / 2.0 + sigStart);
 
     qDebug() << "UpChannelizer::createFilterChain: complete:"
             << " #stages: " << m_filterStages.size()
             << " BW: "  << sigBw
             << " ofs: " << ofs;
 
     return ofs;
 }

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◆ freeFilterChain()

void UpChannelizer::freeFilterChain ( )

protected

Definition at line 408 of file upchannelizer.cpp.

References m_filterStages, and m_stageSamples.

Referenced by applyConfiguration(), applySetting(), and ~UpChannelizer().

 {
     for(FilterStages::iterator it = m_filterStages.begin(); it != m_filterStages.end(); ++it)
         delete *it;
     m_filterStages.clear();
     m_stageSamples.clear();
 }

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◆ getOutputSampleRate()

int UpChannelizer::getOutputSampleRate ( ) const

inline

Definition at line 89 of file upchannelizer.h.

Referenced by ATVMod::handleMessage().

89 { return m_outputSampleRate; }

UpChannelizer::m_outputSampleRate

int m_outputSampleRate

Definition: upchannelizer.h:128

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◆ handleMessage()

bool UpChannelizer::handleMessage ( const Message & cmd )

virtual

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

Implements BasebandSampleSource.

Definition at line 133 of file upchannelizer.cpp.

References applyConfiguration(), applySetting(), DSPConfigureChannelizer::getCenterFrequency(), UpChannelizer::MsgSetChannelizer::getFilterChainHash(), Message::getIdentifier(), BasebandSampleSource::getInputMessageQueue(), UpChannelizer::MsgSetChannelizer::getLog2Interp(), DSPSignalNotification::getSampleRate(), DSPConfigureChannelizer::getSampleRate(), m_filterChainSetMode, m_outputSampleRate, m_requestedCenterFrequency, m_requestedInputSampleRate, m_sampleSource, Message::match(), outputSampleRateChanged(), and MessageQueue::push().

 {
     qDebug() << "UpChannelizer::handleMessage: " << cmd.getIdentifier();
 
     // TODO: apply changes only if input sample rate or requested output sample rate change. Change of center frequency has no impact.
 
     if (DSPSignalNotification::match(cmd))
     {
         DSPSignalNotification& notif = (DSPSignalNotification&) cmd;
         m_outputSampleRate = notif.getSampleRate();
         qDebug() << "UpChannelizer::handleMessage: DSPSignalNotification: m_outputSampleRate: " << m_outputSampleRate;
 
         if (!m_filterChainSetMode) {
             applyConfiguration();
         }
 
         if (m_sampleSource != 0)
         {
             DSPSignalNotification* rep = new DSPSignalNotification(notif); // make a copy
             m_sampleSource->getInputMessageQueue()->push(rep);
         }
 
         emit outputSampleRateChanged();
         return true;
     }
     else if (DSPConfigureChannelizer::match(cmd))
     {
         DSPConfigureChannelizer& chan = (DSPConfigureChannelizer&) cmd;
         m_requestedInputSampleRate = chan.getSampleRate();
         m_requestedCenterFrequency = chan.getCenterFrequency();
 
         qDebug() << "UpChannelizer::handleMessage: DSPConfigureChannelizer:"
                 << " m_requestedInputSampleRate: " << m_requestedInputSampleRate
                 << " m_requestedCenterFrequency: " << m_requestedCenterFrequency;
 
         applyConfiguration();
 
         return true;
     }
     else if (MsgSetChannelizer::match(cmd))
     {
         MsgSetChannelizer& chan = (MsgSetChannelizer&) cmd;
         qDebug() << "UpChannelizer::handleMessage: MsgSetChannelizer";
         applySetting(chan.getLog2Interp(), chan.getFilterChainHash());
 
         return true;
     }
     else
     {
         return false;
 //        if (m_sampleSource != 0)
 //        {
 //            return m_sampleSource->handleMessage(cmd);
 //        }
 //        else
 //        {
 //            return false;
 //        }
     }
 }

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◆ outputSampleRateChanged

void UpChannelizer::outputSampleRateChanged ( )

signal

Referenced by handleMessage().

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◆ pull()

void UpChannelizer::pull ( Sample & sample )

virtual

Implements BasebandSampleSource.

Definition at line 61 of file upchannelizer.cpp.

References m_filterStages, m_mutex, m_sampleBuffer, m_sampleIn, m_sampleSource, m_stageSamples, and BasebandSampleSource::pull().

 {
     if(m_sampleSource == 0) {
         m_sampleBuffer.clear();
         return;
     }
 
     if (m_filterStages.size() == 0) // optimization when no downsampling is done anyway
     {
         m_sampleSource->pull(sample);
     }
     else
     {
         m_mutex.lock();
 
         FilterStages::iterator stage = m_filterStages.begin();
         std::vector<Sample>::iterator stageSample = m_stageSamples.begin();
 
         for (; stage != m_filterStages.end(); ++stage, ++stageSample)
         {
             if(stage == m_filterStages.end() - 1)
             {
                 if ((*stage)->work(&m_sampleIn, &(*stageSample)))
                 {
                     m_sampleSource->pull(m_sampleIn); // get new input sample
                 }
             }
             else
             {
                 if (!(*stage)->work(&(*(stageSample+1)), &(*stageSample)))
                 {
                     break;
                 }
             }
         }
 
         sample = *m_stageSamples.begin();
 
 //      for (; stage != m_filterStages.end(); ++stage)
 //      {
 //          // let's make it work for one stage only (96 kS/s < SR < 192 kS/s)
 //          if(stage == m_filterStages.end() - 1)
 //          {
 //              if ((*stage)->work(&m_sampleIn, &sample))
 //              {
 //                  m_sampleSource->pull(m_sampleIn); // get new input sample
 //              }
 //          }
 //      }
 
         m_mutex.unlock();
     }
 }

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◆ pullAudio()

virtual void UpChannelizer::pullAudio ( int nbSamples )

inlinevirtual

Reimplemented from BasebandSampleSource.

Definition at line 94 of file upchannelizer.h.

94 { if (m_sampleSource) m_sampleSource->pullAudio(nbSamples); }

BasebandSampleSource::pullAudio

virtual void pullAudio(int nbSamples)

Definition: basebandsamplesource.h:39

UpChannelizer::m_sampleSource

BasebandSampleSource * m_sampleSource

Modulator.

Definition: upchannelizer.h:127

◆ set()

void UpChannelizer::set	(	MessageQueue *	messageQueue,
		unsigned int	log2Interp,
		unsigned int	filterChainHash
	)

Definition at line 55 of file upchannelizer.cpp.

References MessageQueue::push().

Referenced by LocalSource::handleMessage(), and FileSource::handleMessage().

 {
     Message* cmd = new MsgSetChannelizer(log2Interp, filterChainHash);
     messageQueue->push(cmd);
 }

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◆ setFilterChain()

double UpChannelizer::setFilterChain ( const std::vector< unsigned int > & stageIndexes )

protected

returns offset in ratio of sample rate

Definition at line 372 of file upchannelizer.cpp.

References UpChannelizer::FilterStage::FilterStage(), m_filterStages, m_stageSamples, UpChannelizer::FilterStage::ModeCenter, UpChannelizer::FilterStage::ModeLowerHalf, and UpChannelizer::FilterStage::ModeUpperHalf.

Referenced by applySetting().

 {
     // filters are described from lower to upper level but the chain is constructed the other way round
     std::vector<unsigned int>::const_reverse_iterator rit = stageIndexes.rbegin();
     double ofs = 0.0, ofs_stage = 0.25;
     Sample s;
 
     // Each index is a base 3 number with 0 = low, 1 = center, 2 = high
     // Functions at upper level will convert a number to base 3 to describe the filter chain. Common converting
     // algorithms will go from LSD to MSD. This explains the reverse order.
     for (; rit != stageIndexes.rend(); ++rit)
     {
         if (*rit == 0)
         {
             m_filterStages.push_back(new FilterStage(FilterStage::ModeLowerHalf));
             m_stageSamples.push_back(s);
             ofs -= ofs_stage;
         }
         else if (*rit == 1)
         {
             m_filterStages.push_back(new FilterStage(FilterStage::ModeCenter));
             m_stageSamples.push_back(s);
         }
         else if (*rit == 2)
         {
             m_filterStages.push_back(new FilterStage(FilterStage::ModeUpperHalf));
             m_stageSamples.push_back(s);
             ofs += ofs_stage;
         }
 
         ofs_stage /= 2;
     }
 
     return ofs;
 }

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◆ signalContainsChannel()

bool UpChannelizer::signalContainsChannel	(	Real	sigStart,
		Real	sigEnd,
		Real	chanStart,
		Real	chanEnd
	)		const

protected

Definition at line 305 of file upchannelizer.cpp.

Referenced by createFilterChain().

 {
     //qDebug("   testing signal [%f, %f], channel [%f, %f]", sigStart, sigEnd, chanStart, chanEnd);
     if(sigEnd <= sigStart)
         return false;
     if(chanEnd <= chanStart)
         return false;
     return (sigStart <= chanStart) && (sigEnd >= chanEnd);
 }

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◆ start()

void UpChannelizer::start ( )

virtual

Implements BasebandSampleSource.

Definition at line 115 of file upchannelizer.cpp.

References m_outputSampleRate, m_requestedCenterFrequency, m_requestedInputSampleRate, m_sampleSource, and BasebandSampleSource::start().

 {
     if (m_sampleSource != 0)
     {
         qDebug() << "UpChannelizer::start: thread: " << thread()
                 << " m_outputSampleRate: " << m_outputSampleRate
                 << " m_requestedInputSampleRate: " << m_requestedInputSampleRate
                 << " m_requestedCenterFrequency: " << m_requestedCenterFrequency;
         m_sampleSource->start();
     }
 }

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◆ stop()

void UpChannelizer::stop ( )

virtual

Implements BasebandSampleSource.

Definition at line 127 of file upchannelizer.cpp.

References m_sampleSource, and BasebandSampleSource::stop().

 {
     if(m_sampleSource != 0)
         m_sampleSource->stop();
 }

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Member Data Documentation

◆ m_currentCenterFrequency

int UpChannelizer::m_currentCenterFrequency

protected

Definition at line 132 of file upchannelizer.h.

Referenced by applyConfiguration(), and applySetting().

◆ m_currentInputSampleRate

int UpChannelizer::m_currentInputSampleRate

protected

Definition at line 131 of file upchannelizer.h.

Referenced by applyConfiguration(), and applySetting().

◆ m_filterChainSetMode

bool UpChannelizer::m_filterChainSetMode

protected

Definition at line 125 of file upchannelizer.h.

Referenced by applyConfiguration(), applySetting(), and handleMessage().

◆ m_filterStages

FilterStages UpChannelizer::m_filterStages

protected

Definition at line 124 of file upchannelizer.h.

Referenced by applyConfiguration(), applySetting(), createFilterChain(), freeFilterChain(), pull(), and setFilterChain().

◆ m_mutex

QMutex UpChannelizer::m_mutex

protected

Definition at line 135 of file upchannelizer.h.

Referenced by applyConfiguration(), applySetting(), and pull().

◆ m_outputSampleRate

int UpChannelizer::m_outputSampleRate

protected

Definition at line 128 of file upchannelizer.h.

Referenced by applyConfiguration(), applySetting(), handleMessage(), and start().

◆ m_requestedCenterFrequency

int UpChannelizer::m_requestedCenterFrequency

protected

Definition at line 130 of file upchannelizer.h.

Referenced by applyConfiguration(), applySetting(), handleMessage(), and start().

◆ m_requestedInputSampleRate

int UpChannelizer::m_requestedInputSampleRate

protected

Definition at line 129 of file upchannelizer.h.

Referenced by applyConfiguration(), applySetting(), handleMessage(), and start().

◆ m_sampleBuffer

SampleVector UpChannelizer::m_sampleBuffer

protected

Definition at line 133 of file upchannelizer.h.

Referenced by pull().

◆ m_sampleIn

Sample UpChannelizer::m_sampleIn

protected

Definition at line 134 of file upchannelizer.h.

Referenced by pull().

◆ m_sampleSource

BasebandSampleSource* UpChannelizer::m_sampleSource

protected

Modulator.

Definition at line 127 of file upchannelizer.h.

Referenced by applyConfiguration(), applySetting(), handleMessage(), pull(), start(), and stop().

◆ m_stageSamples

std::vector<Sample> UpChannelizer::m_stageSamples

protected

Definition at line 126 of file upchannelizer.h.

Referenced by createFilterChain(), freeFilterChain(), pull(), and setFilterChain().

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

sdrbase/dsp/upchannelizer.h
sdrbase/dsp/upchannelizer.cpp

Classes

Signals

Public Member Functions

Protected Types

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Member Typedef Documentation

◆ FilterStages

Constructor & Destructor Documentation

◆ UpChannelizer()

◆ ~UpChannelizer()

Member Function Documentation

◆ applyConfiguration()

◆ applySetting()

◆ configure()

◆ createFilterChain()

◆ freeFilterChain()

◆ getOutputSampleRate()

◆ handleMessage()

◆ outputSampleRateChanged

◆ pull()

◆ pullAudio()

◆ set()

◆ setFilterChain()

◆ signalContainsChannel()

◆ start()

◆ stop()

Member Data Documentation

◆ m_currentCenterFrequency

◆ m_currentInputSampleRate

◆ m_filterChainSetMode

◆ m_filterStages

◆ m_mutex

◆ m_outputSampleRate

◆ m_requestedCenterFrequency

◆ m_requestedInputSampleRate

◆ m_sampleBuffer

◆ m_sampleIn

◆ m_sampleSource

◆ m_stageSamples