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gapepowerspectrum.h

//gapepowerspectrum.h
//11/20/00
//Dave Chisholm dkc@ccrma.stanford.edu Randal Leistikow randal@ccrma.stanford.edu

#ifndef _GAPE_POWERSPECTRUM_H
#define _GAPE_POWERSPECTRUM_H

#include "gapeunit.h"
#include "rfftw.h"
class GapePowerSpectrum : public GapeUnit
{
  Q_OBJECT
  public:
    GapePowerSpectrum(int fftLength);
    virtual ~GapePowerSpectrum();

  public slots:

    virtual void receiveTick(const GapeFloat* values, int numValues);

    void takeLog(bool b) { d_takeLog = b; }

    private:
        void initializeRFFTW(int fftLength);

        // private data
        int         d_nfft;
        fftw_real*  d_in;
        fftw_real*  d_out;
        fftw_real*  d_powerSpect;
        rfftw_plan  d_plan;
        bool        d_planIsInitialized;
        bool        d_takeLog;
};


#endif // _GAPE_POWERSPECTRUM

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