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struct Qitch : Unit {
//FFT data
int m_bufWritePos;
float * m_prepareFFTBuf;
float * m_FFTBuf;
scfft *m_scfft;
//Q data
//FFT constants
//int m_SR, m_N; //not used, just have globals
int m_SR;
int m_Nyquist;
int m_N;
int m_log2N;
int m_Nover2;
int m_overlap;
int m_overlapindex;
float m_framespersec;
float m_fftscale;
float m_freqperbin;
//constants for efficiency
float m_twopioverN;
float realb,imagb;
int m_qbands;
float * m_qfreqs;
int * m_startindex;
int * m_numindices;
//int * m_cumulindices;
float ** m_speckernelvals; //pointers into buffer data
float * m_qmags;
float m_amps[11];
//instantaneous frequency tracking
int m_topqcandidate;
int m_ifbins;
float m_currfreq, m_hasfreq;
float m_minfreq, m_maxfreq;
int m_minqband, m_maxqband;
};
extern "C"
{
//required interface functions
void Qitch_next(Qitch *unit, int wrongNumSamples);
void Qitch_Ctor(Qitch *unit);
void Qitch_Dtor(Qitch *unit);
}
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