mirror of
https://github.com/f4exb/sdrangel.git
synced 2025-11-03 21:20:31 -05:00
834 lines
28 KiB
C++
834 lines
28 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
|
|
// Copyright (C) 2015-2020 Edouard Griffiths, F4EXB //
|
|
// //
|
|
// Symbol synchronizer or symbol clock recovery mostly encapsulating //
|
|
// liquid-dsp's symsync "object" //
|
|
// //
|
|
// 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 "glspectruminterface.h"
|
|
#include "dspcommands.h"
|
|
#include "dspengine.h"
|
|
#include "fftfactory.h"
|
|
#include "util/messagequeue.h"
|
|
|
|
#include "spectrumvis.h"
|
|
|
|
#define MAX_FFT_SIZE 4096
|
|
|
|
#ifndef LINUX
|
|
inline double log2f(double n)
|
|
{
|
|
return log(n) / log(2.0);
|
|
}
|
|
#endif
|
|
|
|
MESSAGE_CLASS_DEFINITION(SpectrumVis::MsgConfigureSpectrumVis, Message)
|
|
MESSAGE_CLASS_DEFINITION(SpectrumVis::MsgConfigureScalingFactor, Message)
|
|
MESSAGE_CLASS_DEFINITION(SpectrumVis::MsgConfigureWSpectrumOpenClose, Message)
|
|
MESSAGE_CLASS_DEFINITION(SpectrumVis::MsgConfigureWSpectrum, Message)
|
|
MESSAGE_CLASS_DEFINITION(SpectrumVis::MsgStartStop, Message)
|
|
|
|
const Real SpectrumVis::m_mult = (10.0f / log2f(10.0f));
|
|
|
|
SpectrumVis::SpectrumVis(Real scalef) :
|
|
BasebandSampleSink(),
|
|
m_running(true),
|
|
m_fft(nullptr),
|
|
m_fftEngineSequence(0),
|
|
m_fftBuffer(MAX_FFT_SIZE),
|
|
m_powerSpectrum(MAX_FFT_SIZE),
|
|
m_fftBufferFill(0),
|
|
m_needMoreSamples(false),
|
|
m_scalef(scalef),
|
|
m_glSpectrum(nullptr),
|
|
m_specMax(0.0f),
|
|
m_centerFrequency(0),
|
|
m_sampleRate(48000),
|
|
m_ofs(0),
|
|
m_powFFTDiv(1.0),
|
|
m_mutex(QMutex::Recursive)
|
|
{
|
|
setObjectName("SpectrumVis");
|
|
applySettings(m_settings, true);
|
|
//m_wsSpectrum.openSocket(); // FIXME: conditional
|
|
}
|
|
|
|
SpectrumVis::~SpectrumVis()
|
|
{
|
|
FFTFactory *fftFactory = DSPEngine::instance()->getFFTFactory();
|
|
fftFactory->releaseEngine(m_settings.m_fftSize, false, m_fftEngineSequence);
|
|
}
|
|
|
|
void SpectrumVis::openWSSpectrum()
|
|
{
|
|
MsgConfigureWSpectrumOpenClose *cmd = new MsgConfigureWSpectrumOpenClose(true);
|
|
getInputMessageQueue()->push(cmd);
|
|
}
|
|
|
|
void SpectrumVis::closeWSSpectrum()
|
|
{
|
|
MsgConfigureWSpectrumOpenClose *cmd = new MsgConfigureWSpectrumOpenClose(false);
|
|
getInputMessageQueue()->push(cmd);
|
|
}
|
|
|
|
void SpectrumVis::configure(
|
|
int fftSize,
|
|
float refLevel,
|
|
float powerRange,
|
|
int overlapPercent,
|
|
unsigned int averagingNb,
|
|
AvgMode averagingMode,
|
|
FFTWindow::Function window,
|
|
bool linear)
|
|
{
|
|
GLSpectrumSettings settings = m_settings;
|
|
settings.m_fftSize = fftSize;
|
|
settings.m_refLevel = refLevel;
|
|
settings.m_powerRange = powerRange;
|
|
settings.m_fftOverlap = overlapPercent;
|
|
settings.m_averagingMode = (GLSpectrumSettings::AveragingMode) averagingMode;
|
|
settings.m_averagingIndex = GLSpectrumSettings::getAveragingIndex(averagingNb, settings.m_averagingMode);
|
|
settings.m_fftWindow = window;
|
|
settings.m_linear = linear;
|
|
|
|
MsgConfigureSpectrumVis* cmd = MsgConfigureSpectrumVis::create(settings, false);
|
|
|
|
getInputMessageQueue()->push(cmd);
|
|
}
|
|
|
|
void SpectrumVis::setScalef(Real scalef)
|
|
{
|
|
MsgConfigureScalingFactor* cmd = new MsgConfigureScalingFactor(scalef);
|
|
getInputMessageQueue()->push(cmd);
|
|
}
|
|
|
|
void SpectrumVis::configureWSSpectrum(const QString& address, uint16_t port)
|
|
{
|
|
MsgConfigureWSpectrum* cmd = new MsgConfigureWSpectrum(address, port);
|
|
getInputMessageQueue()->push(cmd);
|
|
}
|
|
|
|
void SpectrumVis::feedTriggered(const SampleVector::const_iterator& triggerPoint, const SampleVector::const_iterator& end, bool positiveOnly)
|
|
{
|
|
feed(triggerPoint, end, positiveOnly); // normal feed from trigger point
|
|
/*
|
|
if (triggerPoint == end)
|
|
{
|
|
// the following piece of code allows to terminate the FFT that ends past the end of scope captured data
|
|
// that is the spectrum will include the captured data
|
|
// just do nothing if you want the spectrum to be included inside the scope captured data
|
|
// that is to drop the FFT that dangles past the end of captured data
|
|
if (m_needMoreSamples) {
|
|
feed(begin, end, positiveOnly);
|
|
m_needMoreSamples = false; // force finish
|
|
}
|
|
}
|
|
else
|
|
{
|
|
feed(triggerPoint, end, positiveOnly); // normal feed from trigger point
|
|
}*/
|
|
}
|
|
|
|
void SpectrumVis::feed(const Complex *begin, unsigned int length)
|
|
{
|
|
if (!m_glSpectrum && !m_wsSpectrum.socketOpened()) {
|
|
return;
|
|
}
|
|
|
|
if (!m_mutex.tryLock(0)) { // prevent conflicts with configuration process
|
|
return;
|
|
}
|
|
|
|
Complex c;
|
|
Real v;
|
|
|
|
if (m_settings.m_averagingMode == GLSpectrumSettings::AvgModeNone)
|
|
{
|
|
for (unsigned int i = 0; i < m_settings.m_fftSize; i++)
|
|
{
|
|
if (i < length) {
|
|
c = begin[i];
|
|
} else {
|
|
c = Complex{0,0};
|
|
}
|
|
|
|
v = c.real() * c.real() + c.imag() * c.imag();
|
|
v = m_settings.m_linear ? v/m_powFFTDiv : m_mult * log2f(v) + m_ofs;
|
|
m_powerSpectrum[i] = v;
|
|
}
|
|
|
|
// send new data to visualisation
|
|
if (m_glSpectrum) {
|
|
m_glSpectrum->newSpectrum(m_powerSpectrum, m_settings.m_fftSize);
|
|
}
|
|
|
|
// web socket spectrum connections
|
|
if (m_wsSpectrum.socketOpened())
|
|
{
|
|
m_wsSpectrum.newSpectrum(
|
|
m_powerSpectrum,
|
|
m_settings.m_fftSize,
|
|
m_settings.m_refLevel,
|
|
m_settings.m_powerRange,
|
|
m_centerFrequency,
|
|
m_sampleRate,
|
|
m_settings.m_linear
|
|
);
|
|
}
|
|
}
|
|
else if (m_settings.m_averagingMode == GLSpectrumSettings::AvgModeMoving)
|
|
{
|
|
for (unsigned int i = 0; i < m_settings.m_fftSize; i++)
|
|
{
|
|
if (i < length) {
|
|
c = begin[i];
|
|
} else {
|
|
c = Complex{0,0};
|
|
}
|
|
|
|
v = c.real() * c.real() + c.imag() * c.imag();
|
|
v = m_movingAverage.storeAndGetAvg(v, i);
|
|
v = m_settings.m_linear ? v/m_powFFTDiv : m_mult * log2f(v) + m_ofs;
|
|
m_powerSpectrum[i] = v;
|
|
}
|
|
|
|
// send new data to visualisation
|
|
if (m_glSpectrum) {
|
|
m_glSpectrum->newSpectrum(m_powerSpectrum, m_settings.m_fftSize);
|
|
}
|
|
|
|
// web socket spectrum connections
|
|
if (m_wsSpectrum.socketOpened())
|
|
{
|
|
m_wsSpectrum.newSpectrum(
|
|
m_powerSpectrum,
|
|
m_settings.m_fftSize,
|
|
m_settings.m_refLevel,
|
|
m_settings.m_powerRange,
|
|
m_centerFrequency,
|
|
m_sampleRate,
|
|
m_settings.m_linear
|
|
);
|
|
}
|
|
|
|
m_movingAverage.nextAverage();
|
|
}
|
|
else if (m_settings.m_averagingMode == GLSpectrumSettings::AvgModeFixed)
|
|
{
|
|
double avg;
|
|
|
|
for (unsigned int i = 0; i < m_settings.m_fftSize; i++)
|
|
{
|
|
if (i < length) {
|
|
c = begin[i];
|
|
} else {
|
|
c = Complex{0,0};
|
|
}
|
|
|
|
v = c.real() * c.real() + c.imag() * c.imag();
|
|
|
|
// result available
|
|
if (m_fixedAverage.storeAndGetAvg(avg, v, i))
|
|
{
|
|
avg = m_settings.m_linear ? avg/m_powFFTDiv : m_mult * log2f(avg) + m_ofs;
|
|
m_powerSpectrum[i] = avg;
|
|
}
|
|
}
|
|
|
|
// result available
|
|
if (m_fixedAverage.nextAverage())
|
|
{
|
|
// send new data to visualisation
|
|
if (m_glSpectrum) {
|
|
m_glSpectrum->newSpectrum(m_powerSpectrum, m_settings.m_fftSize);
|
|
}
|
|
|
|
// web socket spectrum connections
|
|
if (m_wsSpectrum.socketOpened())
|
|
{
|
|
m_wsSpectrum.newSpectrum(
|
|
m_powerSpectrum,
|
|
m_settings.m_fftSize,
|
|
m_settings.m_refLevel,
|
|
m_settings.m_powerRange,
|
|
m_centerFrequency,
|
|
m_sampleRate,
|
|
m_settings.m_linear
|
|
);
|
|
}
|
|
}
|
|
}
|
|
else if (m_settings.m_averagingMode == GLSpectrumSettings::AvgModeMax)
|
|
{
|
|
double max;
|
|
|
|
for (unsigned int i = 0; i < m_settings.m_fftSize; i++)
|
|
{
|
|
if (i < length) {
|
|
c = begin[i];
|
|
} else {
|
|
c = Complex{0,0};
|
|
}
|
|
|
|
v = c.real() * c.real() + c.imag() * c.imag();
|
|
|
|
// result available
|
|
if (m_max.storeAndGetMax(max, v, i))
|
|
{
|
|
max = m_settings.m_linear ? max/m_powFFTDiv : m_mult * log2f(max) + m_ofs;
|
|
m_powerSpectrum[i] = max;
|
|
}
|
|
}
|
|
|
|
// result available
|
|
if (m_max.nextMax())
|
|
{
|
|
// send new data to visualisation
|
|
if (m_glSpectrum) {
|
|
m_glSpectrum->newSpectrum(m_powerSpectrum, m_settings.m_fftSize);
|
|
}
|
|
|
|
// web socket spectrum connections
|
|
if (m_wsSpectrum.socketOpened())
|
|
{
|
|
m_wsSpectrum.newSpectrum(
|
|
m_powerSpectrum,
|
|
m_settings.m_fftSize,
|
|
m_settings.m_refLevel,
|
|
m_settings.m_powerRange,
|
|
m_centerFrequency,
|
|
m_sampleRate,
|
|
m_settings.m_linear
|
|
);
|
|
}
|
|
}
|
|
}
|
|
|
|
m_mutex.unlock();
|
|
}
|
|
|
|
void SpectrumVis::feed(const SampleVector::const_iterator& cbegin, const SampleVector::const_iterator& end, bool positiveOnly)
|
|
{
|
|
if (!m_running) {
|
|
return;
|
|
}
|
|
|
|
// if no visualisation is set, send the samples to /dev/null
|
|
if (!m_glSpectrum && !m_wsSpectrum.socketOpened()) {
|
|
return;
|
|
}
|
|
|
|
if (!m_mutex.tryLock(0)) { // prevent conflicts with configuration process
|
|
return;
|
|
}
|
|
|
|
SampleVector::const_iterator begin(cbegin);
|
|
|
|
while (begin < end)
|
|
{
|
|
std::size_t todo = end - begin;
|
|
std::size_t samplesNeeded = m_refillSize - m_fftBufferFill;
|
|
|
|
if (todo >= samplesNeeded)
|
|
{
|
|
// fill up the buffer
|
|
std::vector<Complex>::iterator it = m_fftBuffer.begin() + m_fftBufferFill;
|
|
|
|
for (std::size_t i = 0; i < samplesNeeded; ++i, ++begin)
|
|
{
|
|
*it++ = Complex(begin->real() / m_scalef, begin->imag() / m_scalef);
|
|
}
|
|
|
|
// apply fft window (and copy from m_fftBuffer to m_fftIn)
|
|
m_window.apply(&m_fftBuffer[0], m_fft->in());
|
|
|
|
// calculate FFT
|
|
m_fft->transform();
|
|
|
|
// extract power spectrum and reorder buckets
|
|
const Complex* fftOut = m_fft->out();
|
|
Complex c;
|
|
Real v;
|
|
std::size_t halfSize = m_settings.m_fftSize / 2;
|
|
|
|
if (m_settings.m_averagingMode == GLSpectrumSettings::AvgModeNone)
|
|
{
|
|
m_specMax = 0.0f;
|
|
|
|
if ( positiveOnly )
|
|
{
|
|
for (std::size_t i = 0; i < halfSize; i++)
|
|
{
|
|
c = fftOut[i];
|
|
v = c.real() * c.real() + c.imag() * c.imag();
|
|
m_specMax = v > m_specMax ? v : m_specMax;
|
|
v = m_settings.m_linear ? v/m_powFFTDiv : m_mult * log2f(v) + m_ofs;
|
|
m_powerSpectrum[i * 2] = v;
|
|
m_powerSpectrum[i * 2 + 1] = v;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
for (std::size_t i = 0; i < halfSize; i++)
|
|
{
|
|
c = fftOut[i + halfSize];
|
|
v = c.real() * c.real() + c.imag() * c.imag();
|
|
m_specMax = v > m_specMax ? v : m_specMax;
|
|
v = m_settings.m_linear ? v/m_powFFTDiv : m_mult * log2f(v) + m_ofs;
|
|
m_powerSpectrum[i] = v;
|
|
|
|
c = fftOut[i];
|
|
v = c.real() * c.real() + c.imag() * c.imag();
|
|
m_specMax = v > m_specMax ? v : m_specMax;
|
|
v = m_settings.m_linear ? v/m_powFFTDiv : m_mult * log2f(v) + m_ofs;
|
|
m_powerSpectrum[i + halfSize] = v;
|
|
}
|
|
}
|
|
|
|
// send new data to visualisation
|
|
if (m_glSpectrum) {
|
|
m_glSpectrum->newSpectrum(m_powerSpectrum, m_settings.m_fftSize);
|
|
}
|
|
|
|
// web socket spectrum connections
|
|
if (m_wsSpectrum.socketOpened())
|
|
{
|
|
m_wsSpectrum.newSpectrum(
|
|
m_powerSpectrum,
|
|
m_settings.m_fftSize,
|
|
m_settings.m_refLevel,
|
|
m_settings.m_powerRange,
|
|
m_centerFrequency,
|
|
m_sampleRate,
|
|
m_settings.m_linear
|
|
);
|
|
}
|
|
}
|
|
else if (m_settings.m_averagingMode == GLSpectrumSettings::AvgModeMoving)
|
|
{
|
|
m_specMax = 0.0f;
|
|
|
|
if ( positiveOnly )
|
|
{
|
|
for (std::size_t i = 0; i < halfSize; i++)
|
|
{
|
|
c = fftOut[i];
|
|
v = c.real() * c.real() + c.imag() * c.imag();
|
|
v = m_movingAverage.storeAndGetAvg(v, i);
|
|
m_specMax = v > m_specMax ? v : m_specMax;
|
|
v = m_settings.m_linear ? v/m_powFFTDiv : m_mult * log2f(v) + m_ofs;
|
|
m_powerSpectrum[i * 2] = v;
|
|
m_powerSpectrum[i * 2 + 1] = v;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
for (std::size_t i = 0; i < halfSize; i++)
|
|
{
|
|
c = fftOut[i + halfSize];
|
|
v = c.real() * c.real() + c.imag() * c.imag();
|
|
v = m_movingAverage.storeAndGetAvg(v, i+halfSize);
|
|
m_specMax = v > m_specMax ? v : m_specMax;
|
|
v = m_settings.m_linear ? v/m_powFFTDiv : m_mult * log2f(v) + m_ofs;
|
|
m_powerSpectrum[i] = v;
|
|
|
|
c = fftOut[i];
|
|
v = c.real() * c.real() + c.imag() * c.imag();
|
|
v = m_movingAverage.storeAndGetAvg(v, i);
|
|
m_specMax = v > m_specMax ? v : m_specMax;
|
|
v = m_settings.m_linear ? v/m_powFFTDiv : m_mult * log2f(v) + m_ofs;
|
|
m_powerSpectrum[i + halfSize] = v;
|
|
}
|
|
}
|
|
|
|
// send new data to visualisation
|
|
if (m_glSpectrum) {
|
|
m_glSpectrum->newSpectrum(m_powerSpectrum, m_settings.m_fftSize);
|
|
}
|
|
|
|
// web socket spectrum connections
|
|
if (m_wsSpectrum.socketOpened())
|
|
{
|
|
m_wsSpectrum.newSpectrum(
|
|
m_powerSpectrum,
|
|
m_settings.m_fftSize,
|
|
m_settings.m_refLevel,
|
|
m_settings.m_powerRange,
|
|
m_centerFrequency,
|
|
m_sampleRate,
|
|
m_settings.m_linear
|
|
);
|
|
}
|
|
|
|
m_movingAverage.nextAverage();
|
|
}
|
|
else if (m_settings.m_averagingMode == GLSpectrumSettings::AvgModeFixed)
|
|
{
|
|
double avg;
|
|
Real specMax = 0.0f;
|
|
|
|
if ( positiveOnly )
|
|
{
|
|
for (std::size_t i = 0; i < halfSize; i++)
|
|
{
|
|
c = fftOut[i];
|
|
v = c.real() * c.real() + c.imag() * c.imag();
|
|
|
|
// result available
|
|
if (m_fixedAverage.storeAndGetAvg(avg, v, i))
|
|
{
|
|
specMax = avg > specMax ? avg : specMax;
|
|
avg = m_settings.m_linear ? avg/m_powFFTDiv : m_mult * log2f(avg) + m_ofs;
|
|
m_powerSpectrum[i * 2] = avg;
|
|
m_powerSpectrum[i * 2 + 1] = avg;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
for (std::size_t i = 0; i < halfSize; i++)
|
|
{
|
|
c = fftOut[i + halfSize];
|
|
v = c.real() * c.real() + c.imag() * c.imag();
|
|
|
|
// result available
|
|
if (m_fixedAverage.storeAndGetAvg(avg, v, i+halfSize))
|
|
{
|
|
specMax = avg > specMax ? avg : specMax;
|
|
avg = m_settings.m_linear ? avg/m_powFFTDiv : m_mult * log2f(avg) + m_ofs;
|
|
m_powerSpectrum[i] = avg;
|
|
}
|
|
|
|
c = fftOut[i];
|
|
v = c.real() * c.real() + c.imag() * c.imag();
|
|
|
|
// result available
|
|
if (m_fixedAverage.storeAndGetAvg(avg, v, i))
|
|
{
|
|
specMax = avg > specMax ? avg : specMax;
|
|
avg = m_settings.m_linear ? avg/m_powFFTDiv : m_mult * log2f(avg) + m_ofs;
|
|
m_powerSpectrum[i + halfSize] = avg;
|
|
}
|
|
}
|
|
}
|
|
|
|
// result available
|
|
if (m_fixedAverage.nextAverage())
|
|
{
|
|
m_specMax = specMax;
|
|
|
|
// send new data to visualisation
|
|
if (m_glSpectrum) {
|
|
m_glSpectrum->newSpectrum(m_powerSpectrum, m_settings.m_fftSize);
|
|
}
|
|
|
|
// web socket spectrum connections
|
|
if (m_wsSpectrum.socketOpened())
|
|
{
|
|
m_wsSpectrum.newSpectrum(
|
|
m_powerSpectrum,
|
|
m_settings.m_fftSize,
|
|
m_settings.m_refLevel,
|
|
m_settings.m_powerRange,
|
|
m_centerFrequency,
|
|
m_sampleRate,
|
|
m_settings.m_linear
|
|
);
|
|
}
|
|
}
|
|
}
|
|
else if (m_settings.m_averagingMode == GLSpectrumSettings::AvgModeMax)
|
|
{
|
|
double max;
|
|
Real specMax = 0.0f;
|
|
|
|
if ( positiveOnly )
|
|
{
|
|
for (std::size_t i = 0; i < halfSize; i++)
|
|
{
|
|
c = fftOut[i];
|
|
v = c.real() * c.real() + c.imag() * c.imag();
|
|
|
|
// result available
|
|
if (m_max.storeAndGetMax(max, v, i))
|
|
{
|
|
specMax = max > specMax ? max : specMax;
|
|
max = m_settings.m_linear ? max/m_powFFTDiv : m_mult * log2f(max) + m_ofs;
|
|
m_powerSpectrum[i * 2] = max;
|
|
m_powerSpectrum[i * 2 + 1] = max;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
for (std::size_t i = 0; i < halfSize; i++)
|
|
{
|
|
c = fftOut[i + halfSize];
|
|
v = c.real() * c.real() + c.imag() * c.imag();
|
|
|
|
// result available
|
|
if (m_max.storeAndGetMax(max, v, i+halfSize))
|
|
{
|
|
specMax = max > specMax ? max : specMax;
|
|
max = m_settings.m_linear ? max/m_powFFTDiv : m_mult * log2f(max) + m_ofs;
|
|
m_powerSpectrum[i] = max;
|
|
}
|
|
|
|
c = fftOut[i];
|
|
v = c.real() * c.real() + c.imag() * c.imag();
|
|
|
|
// result available
|
|
if (m_max.storeAndGetMax(max, v, i))
|
|
{
|
|
specMax = max > specMax ? max : specMax;
|
|
max = m_settings.m_linear ? max/m_powFFTDiv : m_mult * log2f(max) + m_ofs;
|
|
m_powerSpectrum[i + halfSize] = max;
|
|
}
|
|
}
|
|
}
|
|
|
|
// result available
|
|
if (m_max.nextMax())
|
|
{
|
|
m_specMax = specMax;
|
|
|
|
// send new data to visualisation
|
|
if (m_glSpectrum) {
|
|
m_glSpectrum->newSpectrum(m_powerSpectrum, m_settings.m_fftSize);
|
|
}
|
|
|
|
// web socket spectrum connections
|
|
if (m_wsSpectrum.socketOpened())
|
|
{
|
|
m_wsSpectrum.newSpectrum(
|
|
m_powerSpectrum,
|
|
m_settings.m_fftSize,
|
|
m_settings.m_refLevel,
|
|
m_settings.m_powerRange,
|
|
m_centerFrequency,
|
|
m_sampleRate,
|
|
m_settings.m_linear
|
|
);
|
|
}
|
|
}
|
|
}
|
|
|
|
// advance buffer respecting the fft overlap factor
|
|
std::copy(m_fftBuffer.begin() + m_refillSize, m_fftBuffer.end(), m_fftBuffer.begin());
|
|
|
|
// start over
|
|
m_fftBufferFill = m_overlapSize;
|
|
m_needMoreSamples = false;
|
|
}
|
|
else
|
|
{
|
|
// not enough samples for FFT - just fill in new data and return
|
|
for(std::vector<Complex>::iterator it = m_fftBuffer.begin() + m_fftBufferFill; begin < end; ++begin)
|
|
{
|
|
*it++ = Complex(begin->real() / m_scalef, begin->imag() / m_scalef);
|
|
}
|
|
|
|
m_fftBufferFill += todo;
|
|
m_needMoreSamples = true;
|
|
}
|
|
}
|
|
|
|
m_mutex.unlock();
|
|
}
|
|
|
|
void SpectrumVis::start()
|
|
{
|
|
setRunning(true);
|
|
|
|
if (getMessageQueueToGUI()) // propagate to GUI if any
|
|
{
|
|
MsgStartStop *msg = MsgStartStop::create(true);
|
|
getMessageQueueToGUI()->push(msg);
|
|
}
|
|
}
|
|
|
|
void SpectrumVis::stop()
|
|
{
|
|
setRunning(false);
|
|
|
|
if (getMessageQueueToGUI()) // propagate to GUI if any
|
|
{
|
|
MsgStartStop *msg = MsgStartStop::create(false);
|
|
getMessageQueueToGUI()->push(msg);
|
|
}
|
|
}
|
|
|
|
bool SpectrumVis::handleMessage(const Message& message)
|
|
{
|
|
if (DSPSignalNotification::match(message))
|
|
{
|
|
// This is coming from device engine and will apply to main spectrum
|
|
DSPSignalNotification& notif = (DSPSignalNotification&) message;
|
|
qDebug() << "SpectrumVis::handleMessage: DSPSignalNotification:"
|
|
<< " centerFrequency: " << notif.getCenterFrequency()
|
|
<< " sampleRate: " << notif.getSampleRate();
|
|
handleConfigureDSP(notif.getCenterFrequency(), notif.getSampleRate());
|
|
return true;
|
|
}
|
|
else if (MsgConfigureSpectrumVis::match(message))
|
|
{
|
|
MsgConfigureSpectrumVis& cfg = (MsgConfigureSpectrumVis&) message;
|
|
qDebug() << "SpectrumVis::handleMessage: MsgConfigureSpectrumVis";
|
|
applySettings(cfg.getSettings(), cfg.getForce());
|
|
return true;
|
|
}
|
|
else if (MsgConfigureScalingFactor::match(message))
|
|
{
|
|
MsgConfigureScalingFactor& conf = (MsgConfigureScalingFactor&) message;
|
|
handleScalef(conf.getScalef());
|
|
return true;
|
|
}
|
|
else if (MsgConfigureWSpectrumOpenClose::match(message))
|
|
{
|
|
MsgConfigureWSpectrumOpenClose& conf = (MsgConfigureWSpectrumOpenClose&) message;
|
|
handleWSOpenClose(conf.getOpenClose());
|
|
return true;
|
|
}
|
|
else if (MsgConfigureWSpectrum::match(message)) {
|
|
MsgConfigureWSpectrum& conf = (MsgConfigureWSpectrum&) message;
|
|
handleConfigureWSSpectrum(conf.getAddress(), conf.getPort());
|
|
return true;
|
|
}
|
|
else if (MsgStartStop::match(message))
|
|
{
|
|
MsgStartStop& cmd = (MsgStartStop&) message;
|
|
setRunning(cmd.getStartStop());
|
|
|
|
return true;
|
|
}
|
|
else
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
|
|
void SpectrumVis::applySettings(const GLSpectrumSettings& settings, bool force)
|
|
{
|
|
QMutexLocker mutexLocker(&m_mutex);
|
|
|
|
int fftSize = settings.m_fftSize > MAX_FFT_SIZE ?
|
|
MAX_FFT_SIZE :
|
|
settings.m_fftSize < 64 ?
|
|
64 :
|
|
settings.m_fftSize;
|
|
|
|
int overlapPercent = settings.m_fftOverlap > 100 ?
|
|
100 :
|
|
settings.m_fftOverlap < 0 ?
|
|
0 :
|
|
settings.m_fftOverlap;
|
|
|
|
qDebug() << "SpectrumVis::applySettings:"
|
|
<< " m_fftSize: " << fftSize
|
|
<< " m_fftWindow: " << settings.m_fftWindow
|
|
<< " m_fftOverlap: " << overlapPercent
|
|
<< " m_averagingIndex: " << settings.m_averagingIndex
|
|
<< " m_averagingMode: " << settings.m_averagingMode
|
|
<< " m_refLevel: " << settings.m_refLevel
|
|
<< " m_powerRange: " << settings.m_powerRange
|
|
<< " m_linear: " << settings.m_linear
|
|
<< " force: " << force;
|
|
|
|
if ((fftSize != m_settings.m_fftSize) || force)
|
|
{
|
|
FFTFactory *fftFactory = DSPEngine::instance()->getFFTFactory();
|
|
|
|
// release previous engine allocation if any
|
|
if (m_fft) {
|
|
fftFactory->releaseEngine(m_settings.m_fftSize, false, m_fftEngineSequence);
|
|
}
|
|
|
|
m_fftEngineSequence = fftFactory->getEngine(fftSize, false, &m_fft);
|
|
m_ofs = 20.0f * log10f(1.0f / fftSize);
|
|
m_powFFTDiv = fftSize * fftSize;
|
|
}
|
|
|
|
if ((fftSize != m_settings.m_fftSize)
|
|
|| (settings.m_fftWindow != m_settings.m_fftWindow) || force)
|
|
{
|
|
m_window.create(settings.m_fftWindow, fftSize);
|
|
}
|
|
|
|
if ((fftSize != m_settings.m_fftSize)
|
|
|| (overlapPercent != m_settings.m_fftOverlap) || force)
|
|
{
|
|
m_overlapSize = (fftSize * overlapPercent) / 100;
|
|
m_refillSize = fftSize - m_overlapSize;
|
|
m_fftBufferFill = m_overlapSize;
|
|
}
|
|
|
|
if ((fftSize != m_settings.m_fftSize)
|
|
|| (settings.m_averagingIndex != m_settings.m_averagingIndex)
|
|
|| (settings.m_averagingMode != m_settings.m_averagingMode) || force)
|
|
{
|
|
unsigned int averagingValue = GLSpectrumSettings::getAveragingValue(settings.m_averagingIndex, settings.m_averagingMode);
|
|
m_movingAverage.resize(fftSize, averagingValue > 1000 ? 1000 : averagingValue); // Capping to avoid out of memory condition
|
|
m_fixedAverage.resize(fftSize, averagingValue);
|
|
m_max.resize(fftSize, averagingValue);
|
|
}
|
|
|
|
m_settings = settings;
|
|
m_settings.m_fftSize = fftSize;
|
|
m_settings.m_fftOverlap = overlapPercent;
|
|
}
|
|
|
|
void SpectrumVis::handleConfigureDSP(uint64_t centerFrequency, int sampleRate)
|
|
{
|
|
QMutexLocker mutexLocker(&m_mutex);
|
|
m_centerFrequency = centerFrequency;
|
|
m_sampleRate = sampleRate;
|
|
}
|
|
|
|
void SpectrumVis::handleScalef(Real scalef)
|
|
{
|
|
QMutexLocker mutexLocker(&m_mutex);
|
|
m_scalef = scalef;
|
|
}
|
|
|
|
void SpectrumVis::handleWSOpenClose(bool openClose)
|
|
{
|
|
QMutexLocker mutexLocker(&m_mutex);
|
|
|
|
if (openClose) {
|
|
m_wsSpectrum.openSocket();
|
|
} else {
|
|
m_wsSpectrum.closeSocket();
|
|
}
|
|
}
|
|
|
|
void SpectrumVis::handleConfigureWSSpectrum(const QString& address, uint16_t port)
|
|
{
|
|
QMutexLocker mutexLocker(&m_mutex);
|
|
bool wsSpectrumWasOpen = false;
|
|
|
|
if (m_wsSpectrum.socketOpened())
|
|
{
|
|
m_wsSpectrum.closeSocket();
|
|
wsSpectrumWasOpen = true;
|
|
}
|
|
|
|
m_wsSpectrum.setListeningAddress(address);
|
|
m_wsSpectrum.setPort(port);
|
|
|
|
if (wsSpectrumWasOpen) {
|
|
m_wsSpectrum.openSocket();
|
|
}
|
|
} |