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svp header update

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This commit is contained in:
Charles J. Cliffe 2015-09-07 20:53:55 -04:00
parent 2e6b173fb1
commit 125a967ee3
1 changed files with 0 additions and 72 deletions
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72
src/process/SpectrumVisualProcessor.h
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@ -69,75 +69,3 @@ private:
std::atomic_int desiredInputSize;
std::mutex busy_run;
};
class FFTDataDistributor : public VisualProcessor<DemodulatorThreadIQData, DemodulatorThreadIQData> {
public:
FFTDataDistributor() : linesPerSecond(DEFAULT_WATERFALL_LPS), lineRateAccum(0.0) {
}
void setFFTSize(int fftSize) {
this->fftSize = fftSize;
}
void setLinesPerSecond(int lines) {
this->linesPerSecond = lines;
}
int getLinesPerSecond() {
return this->linesPerSecond;
}
protected:
void process() {
while (!input->empty()) {
if (!isAnyOutputEmpty()) {
return;
}
DemodulatorThreadIQData *inp;
input->pop(inp);
int fftSize = this->fftSize;
if (fftSize > inp->data.size()) {
fftSize = inp->data.size();
}
// number of milliseconds contained in input
double inputTime = (double)inp->data.size() / (double)inp->sampleRate;
// number of lines in input
int inputLines = floor((double)inp->data.size()/(double)fftSize);
// ratio required to achieve the desired rate
double lineRateStep = ((double)linesPerSecond * inputTime)/(double)inputLines;
if (inp) {
if (inp->data.size() >= fftSize) {
if (lineRateAccum + (lineRateStep * floor((double)inp->data.size()/(double)fftSize)) < 1.0) {
// move along, nothing to see here..
lineRateAccum += (lineRateStep * inp->data.size()/fftSize);
} else for (int i = 0, iMax = inp->data.size()-fftSize; i <= iMax; i += fftSize) {
lineRateAccum += lineRateStep;
if (lineRateAccum >= 1.0) {
DemodulatorThreadIQData *outp = outputBuffers.getBuffer();
outp->frequency = inp->frequency;
outp->sampleRate = inp->sampleRate;
outp->data.assign(inp->data.begin()+i,inp->data.begin()+i+fftSize);
distribute(outp);
while (lineRateAccum >= 1.0) {
lineRateAccum -= 1.0;
}
}
}
}
inp->decRefCount();
}
}
}
ReBuffer<DemodulatorThreadIQData> outputBuffers;
int fftSize;
int linesPerSecond;
double lineRateAccum;
};