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Remap mis-matched averaging buffers on resampler change

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This commit is contained in:
Charles J. Cliffe 2015-12-12 17:28:17 -05:00
parent e22e696a7d
commit 0b03ed47d4
3 changed files with 62 additions and 17 deletions
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14
src/AppFrame.cpp
View File

@ -1050,15 +1050,9 @@ void AppFrame::OnIdle(wxIdleEvent& event) {
GetStatusBar()->SetStatusText(wxString::Format(wxT("Spectrum averaging speed changed to %0.2f%%."),val*100.0));
}
proc->setView(waterfallCanvas->getViewState());
proc->setBandwidth(waterfallCanvas->getBandwidth());
proc->setCenterFrequency(waterfallCanvas->getCenterFrequency());
SpectrumVisualProcessor *dproc = wxGetApp().getDemodSpectrumProcessor();
dproc->setView(demodWaterfallCanvas->getViewState());
dproc->setBandwidth(demodWaterfallCanvas->getBandwidth());
dproc->setCenterFrequency(demodWaterfallCanvas->getCenterFrequency());
dproc->setView(demodWaterfallCanvas->getViewState(), demodWaterfallCanvas->getCenterFrequency(),demodWaterfallCanvas->getBandwidth());
SpectrumVisualProcessor *wproc = waterfallDataThread->getProcessor();
@ -1070,11 +1064,11 @@ void AppFrame::OnIdle(wxIdleEvent& event) {
GetStatusBar()->SetStatusText(wxString::Format(wxT("Waterfall max speed changed to %d lines per second."),(int)ceil(val*val)));
}
wproc->setView(waterfallCanvas->getViewState());
wproc->setBandwidth(waterfallCanvas->getBandwidth());
wproc->setCenterFrequency(waterfallCanvas->getCenterFrequency());
wproc->setView(waterfallCanvas->getViewState(), waterfallCanvas->getCenterFrequency(), waterfallCanvas->getBandwidth());
wxGetApp().getSDRPostThread()->setIQVisualRange(waterfallCanvas->getCenterFrequency(), waterfallCanvas->getBandwidth());
proc->setView(wproc->isView(), wproc->getCenterFrequency(), wproc->getBandwidth());
demod = wxGetApp().getDemodMgr().getLastActiveDemodulator();
if (modemPropertiesUpdated.load() && demod && demod->isModemInitialized()) {

63
src/process/SpectrumVisualProcessor.cpp
View File

@ -34,6 +34,15 @@ void SpectrumVisualProcessor::setView(bool bView) {
busy_run.unlock();
}
void SpectrumVisualProcessor::setView(bool bView, long long centerFreq_in, long bandwidth_in) {
busy_run.lock();
is_view.store(bView);
bandwidth.store(bandwidth_in);
centerFreq.store(centerFreq_in);
busy_run.unlock();
}
void SpectrumVisualProcessor::setFFTAverageRate(float fftAverageRate) {
busy_run.lock();
this->fft_average_rate.store(fftAverageRate);
@ -133,7 +142,9 @@ void SpectrumVisualProcessor::process() {
unsigned int num_written;
long resampleBw = iqData->sampleRate;
bool newResampler = false;
int bwDiff;
if (bandwidth > resampleBw) {
iqData->decRefCount();
iqData->busy_rw.unlock();
@ -199,8 +210,10 @@ void SpectrumVisualProcessor::process() {
resampler = msresamp_crcf_create(resamplerRatio, As);
bwDiff = resampleBw-lastBandwidth;
lastBandwidth = resampleBw;
lastInputBandwidth = iqData->sampleRate;
newResampler = true;
}
@ -285,6 +298,7 @@ void SpectrumVisualProcessor::process() {
fft_result.resize(fftSizeInternal);
fft_result_ma.resize(fftSizeInternal);
fft_result_maa.resize(fftSizeInternal);
fft_result_temp.resize(fftSizeInternal);
}
for (int i = 0, iMax = fftSizeInternal / 2; i < iMax; i++) {
@ -300,14 +314,49 @@ void SpectrumVisualProcessor::process() {
fft_result[fftSizeInternal / 2 + i] = (c);
}
for (int i = 0, iMax = fftSizeInternal; i < iMax; i++) {
if (is_view.load()) {
fft_result_maa[i] += (fft_result_ma[i] - fft_result_maa[i]) * fft_average_rate;
fft_result_ma[i] += (fft_result[i] - fft_result_ma[i]) * fft_average_rate;
if (newResampler) {
if (bwDiff < 0) {
for (int i = 0, iMax = fftSizeInternal; i < iMax; i++) {
fft_result_temp[i] = fft_result_ma[(fftSizeInternal/4) + (i/2)];
}
for (int i = 0, iMax = fftSizeInternal; i < iMax; i++) {
fft_result_ma[i] = fft_result_temp[i];
fft_result_temp[i] = fft_result_maa[(fftSizeInternal/4) + (i/2)];
}
for (int i = 0, iMax = fftSizeInternal; i < iMax; i++) {
fft_result_maa[i] = fft_result_temp[i];
}
} else {
fft_result_maa[i] += (fft_result_ma[i] - fft_result_maa[i]) * fft_average_rate;
fft_result_ma[i] += (fft_result[i] - fft_result_ma[i]) * fft_average_rate;
for (int i = 0, iMax = fftSizeInternal; i < iMax; i++) {
if (i < fftSizeInternal/4) {
fft_result_temp[i] = 0;
} else if (i > fftSizeInternal - fftSizeInternal/4) {
fft_result_temp[i] = 0;
} else {
fft_result_temp[i] = fft_result_ma[(i-fftSizeInternal/4)*2];
}
}
for (int i = 0, iMax = fftSizeInternal; i < iMax; i++) {
fft_result_ma[i] = fft_result_temp[i];
if (i < fftSizeInternal/4) {
fft_result_temp[i] = 0;
} else if (i > fftSizeInternal - fftSizeInternal/4) {
fft_result_temp[i] = 0;
} else {
fft_result_temp[i] = fft_result_maa[(i-fftSizeInternal/4)*2];
}
}
for (int i = 0, iMax = fftSizeInternal; i < iMax; i++) {
fft_result_maa[i] = fft_result_temp[i];
}
}
}
for (int i = 0, iMax = fftSizeInternal; i < iMax; i++) {
fft_result_maa[i] += (fft_result_ma[i] - fft_result_maa[i]) * fft_average_rate;
fft_result_ma[i] += (fft_result[i] - fft_result_ma[i]) * fft_average_rate;
if (fft_result_maa[i] > fft_ceil) {
fft_ceil = fft_result_maa[i];

2
src/process/SpectrumVisualProcessor.h
View File

@ -24,6 +24,7 @@ public:
bool isView();
void setView(bool bView);
void setView(bool bView, long long centerFreq_in, long bandwidth_in);
void setFFTAverageRate(float fftAverageRate);
float getFFTAverageRate();
@ -67,6 +68,7 @@ private:
std::vector<double> fft_result;
std::vector<double> fft_result_ma;
std::vector<double> fft_result_maa;
std::vector<double> fft_result_temp;
msresamp_crcf resampler;
double resamplerRatio;