kiss_fft.c File Reference

#include "_kiss_fft_guts.h"
#include "misc.h"

Include dependency graph for kiss_fft.c:

Defines
#define	CHECKBUF(buf, nbuf, n)
Functions
kiss_fft_cfg	kiss_fft_alloc (int nfft, int inverse_fft, void *mem, size_t *lenmem)
void	kiss_fft_stride (kiss_fft_cfg st, const kiss_fft_cpx *fin, kiss_fft_cpx *fout, int in_stride)
void	kiss_fft (kiss_fft_cfg cfg, const kiss_fft_cpx *fin, kiss_fft_cpx *fout)
void	kiss_fft_cleanup (void)

---

Define Documentation

#define CHECKBUF	(	buf,
		nbuf,
		n		)

Value:

do { \
        if ( nbuf < (size_t)(n) ) {\
            free(buf); \
            buf = (kiss_fft_cpx*)KISS_FFT_MALLOC(sizeof(kiss_fft_cpx)*(n)); \
            nbuf = (size_t)(n); \
        } \
   }while(0)

Referenced by kiss_fft_stride().

---

Function Documentation

void kiss_fft	(	kiss_fft_cfg	cfg,
		const kiss_fft_cpx *	fin,
		kiss_fft_cpx *	fout
	)

References kiss_fft_stride().

Referenced by kiss_fftr(), and kiss_fftri().

kiss_fft_cfg kiss_fft_alloc	(	int	nfft,
		int	inverse_fft,
		void *	mem,
		size_t *	lenmem
	)

References kiss_fft_state::factors, kiss_fft_state::inverse, kf_cexp, KISS_FFT_MALLOC, kiss_fft_state::nfft, NULL, and kiss_fft_state::twiddles.

Referenced by kiss_fftr_alloc().

void kiss_fft_cleanup

(

void

)

References NULL.

void kiss_fft_stride	(	kiss_fft_cfg	st,
		const kiss_fft_cpx *	fin,
		kiss_fft_cpx *	fout,
		int	in_stride
	)

References CHECKBUF, kiss_fft_state::factors, and kiss_fft_state::nfft.

Referenced by kiss_fft().