2014-05-18 11:52:39 -04:00
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#ifndef INCLUDE_SPECTRUMVIS_H
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#define INCLUDE_SPECTRUMVIS_H
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2016-10-02 16:29:04 -04:00
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#include <dsp/basebandsamplesink.h>
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#include <QMutex>
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#include "dsp/fftengine.h"
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#include "dsp/fftwindow.h"
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#include "export.h"
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#include "util/message.h"
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#include "util/movingaverage2d.h"
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#include "util/fixedaverage2d.h"
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class GLSpectrum;
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class MessageQueue;
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class SDRGUI_API SpectrumVis : public BasebandSampleSink {
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public:
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enum AveragingMode
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{
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AvgModeMoving,
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AvgModeFixed
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};
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class MsgConfigureSpectrumVis : public Message {
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MESSAGE_CLASS_DECLARATION
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public:
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MsgConfigureSpectrumVis(int fftSize, int overlapPercent, unsigned int averageNb, int averagingMode, FFTWindow::Function window) :
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Message(),
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m_fftSize(fftSize),
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m_overlapPercent(overlapPercent),
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m_averageNb(averageNb),
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m_window(window)
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{
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m_averagingMode = averagingMode < 0 ? AvgModeMoving : averagingMode > 1 ? AvgModeFixed : (SpectrumVis::AveragingMode) averagingMode;
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}
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int getFFTSize() const { return m_fftSize; }
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int getOverlapPercent() const { return m_overlapPercent; }
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unsigned int getAverageNb() const { return m_averageNb; }
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SpectrumVis::AveragingMode getAveragingMode() const { return m_averagingMode; }
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FFTWindow::Function getWindow() const { return m_window; }
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private:
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int m_fftSize;
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int m_overlapPercent;
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unsigned int m_averageNb;
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SpectrumVis::AveragingMode m_averagingMode;
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FFTWindow::Function m_window;
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};
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SpectrumVis(Real scalef, GLSpectrum* glSpectrum = 0);
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virtual ~SpectrumVis();
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void configure(MessageQueue* msgQueue,
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int fftSize,
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int overlapPercent,
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unsigned int averagingNb,
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int averagingMode,
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FFTWindow::Function window);
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virtual void feed(const SampleVector::const_iterator& begin, const SampleVector::const_iterator& end, bool positiveOnly);
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void feedTriggered(const SampleVector::const_iterator& triggerPoint, const SampleVector::const_iterator& end, bool positiveOnly);
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virtual void start();
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virtual void stop();
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virtual bool handleMessage(const Message& message);
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private:
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FFTEngine* m_fft;
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FFTWindow m_window;
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std::vector<Complex> m_fftBuffer;
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std::vector<Real> m_logPowerSpectrum;
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std::size_t m_fftSize;
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std::size_t m_overlapPercent;
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std::size_t m_overlapSize;
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std::size_t m_refillSize;
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std::size_t m_fftBufferFill;
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bool m_needMoreSamples;
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Real m_scalef;
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GLSpectrum* m_glSpectrum;
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MovingAverage2D<double> m_movingAverage;
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FixedAverage2D<double> m_fixedAverage;
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unsigned int m_averageNb;
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AveragingMode m_averagingMode;
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Real m_ofs;
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static const Real m_mult;
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QMutex m_mutex;
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void handleConfigure(int fftSize,
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int overlapPercent,
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unsigned int averageNb,
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AveragingMode averagingMode,
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FFTWindow::Function window);
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};
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#endif // INCLUDE_SPECTRUMVIS_H
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