fft.h File Reference

#include "common.h"
#include <math.h>

Include dependency graph for fft.h:

Go to the source code of this file.

Data Structures
struct	COMPLEX

Macros
#define	M_PI   3.14159265358979323846264338328
#define	M_SQRT1_2   0.70710678118654752440084436210

Functions
void	splitdit (int N, int M)
void	ditsplit (int n, int m)
void	rfft (double *X, int N)
	Real valued, split-radix, decimation in time FFT. More...
void	irfft (double *X, int n)
	Split Radix, Decimation in Frequency, Inverse Real-valued FFT. More...
void	cfft (COMPLEX *dat, int num)
	Forward Complex Fourier Transform. More...
void	icfft (COMPLEX *dat, int num)
void	cdiv (COMPLEX *result, COMPLEX *val1, COMPLEX *val2)
void	rfft256 (register double X[])
void	irfft256 (register double X[])

Macro Definition Documentation

M_PI

#define M_PI   3.14159265358979323846264338328

Definition at line 37 of file fft.h.

M_SQRT1_2

#define M_SQRT1_2   0.70710678118654752440084436210

Definition at line 40 of file fft.h.