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sdrangel/include-gpl/dsp/spectrumvis.h
2015-08-17 08:29:34 +02:00

45 lines
1.2 KiB
C++

#ifndef INCLUDE_SPECTRUMVIS_H
#define INCLUDE_SPECTRUMVIS_H
#include "dsp/samplesink.h"
#include "dsp/fftengine.h"
#include "fftwindow.h"
#include "util/export.h"
class GLSpectrum;
class MessageQueue;
class SDRANGELOVE_API SpectrumVis : public SampleSink {
public:
SpectrumVis(GLSpectrum* glSpectrum = NULL);
virtual ~SpectrumVis();
void configure(MessageQueue* msgQueue, int fftSize, int overlapPercent, FFTWindow::Function window);
virtual void feed(SampleVector::const_iterator begin, SampleVector::const_iterator end, bool positiveOnly);
void feedTriggered(SampleVector::const_iterator triggerPoint, SampleVector::const_iterator begin, SampleVector::const_iterator end, bool positiveOnly);
virtual void start();
virtual void stop();
virtual bool handleMessage(const Message& message);
private:
FFTEngine* m_fft;
FFTWindow m_window;
std::vector<Complex> m_fftBuffer;
std::vector<Real> m_logPowerSpectrum;
std::size_t m_fftSize;
std::size_t m_overlapPercent;
std::size_t m_overlapSize;
std::size_t m_refillSize;
std::size_t m_fftBufferFill;
bool m_needMoreSamples;
GLSpectrum* m_glSpectrum;
void handleConfigure(int fftSize, int overlapPercent, FFTWindow::Function window);
};
#endif // INCLUDE_SPECTRUMVIS_H