fftwrap.c File Reference

#include "misc.h"
#include "kiss_fftr.h"
#include "kiss_fft.h"

Include dependency graph for fftwrap.c:

Defines
#define	USE_KISS_FFT
Functions
void *	spx_fft_init (int size)
void	spx_fft_destroy (void *table)
void	spx_fft (void *table, spx_word16_t *in, spx_word16_t *out)
void	spx_ifft (void *table, spx_word16_t *in, spx_word16_t *out)
void	spx_fft_float (void *table, float *in, float *out)
void	spx_ifft_float (void *table, float *in, float *out)
Variables
int	fixed_point = 1

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Define Documentation

#define USE_KISS_FFT

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Function Documentation

void spx_fft (  void *  table, spx_word16_t *  in, spx_word16_t *  out )

Forward (real to half-complex) transform

void spx_fft_destroy (  void *  table  )

Destroy tables for an FFT

void spx_fft_float (  void *  table, float *  in, float *  out )

Forward (real to half-complex) transform of float data

void* spx_fft_init (  int  size  )

Compute tables for an FFT

void spx_ifft (  void *  table, spx_word16_t *  in, spx_word16_t *  out )

Backward (half-complex to real) transform

void spx_ifft_float (  void *  table, float *  in, float *  out )

Backward (half-complex to real) transform of float data

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Variable Documentation

int fixed_point = 1

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