#ifndef __FnFFTLib_H
#define __FnFFTLib_H

typedef struct {
	float	freq;
	unsigned int mag;
} FFT_ReturnData;



#define	PIE				(3.1415926536)
#define FFT_N			512
#define FFT_NN			256	//(N/2)	
#define log2N			9
#define	ZM_RNG			250
#define	ZM_RNG_Fine		15

void FnFFTInit(float *CNT, float *SNT);
FFT_ReturnData FnFFT512(float *src, float *cnt, float *snt);
FFT_ReturnData FnDFT25K(float *src, int cenFreq, int tsize, int rng);
void FnBrev(long m, float *src);
void FnFFTInplace(float *fxr, float *fxi, float *CNT, float *SNT);
int FnFFTMax(float *fSrc, int fftSize);
void FnFFTSum(float *rSrc, float *iSrc, int fftSize);

#endif	/* __FnFFTLib_H */