rdft.h File Reference

#include "config.h"
#include "fft.h"

Go to the source code of this file.

Data Structures
struct	RDFTContext

Macros
#define	AVCODEC_RDFT_H

Functions
int	ff_rdft_init (RDFTContext *s, int nbits, enum RDFTransformType trans)
	Set up a real FFT. More...
void	ff_rdft_end (RDFTContext *s)
void	ff_rdft_init_arm (RDFTContext *s)

Macro Definition Documentation

AVCODEC_RDFT_H

#define AVCODEC_RDFT_H

Definition at line 23 of file rdft.h.

Function Documentation

ff_rdft_init()

int ff_rdft_init	(	RDFTContext *	s,
		int	nbits,
		enum RDFTransformType	trans
	)

Set up a real FFT.

Parameters

nbits	log2 of the length of the input array
trans	the type of transform

Definition at line 89 of file rdft.c.

Referenced by ff_dct_init(), and wmavoice_decode_init().

ff_rdft_end()

void ff_rdft_end

(

RDFTContext *

s

)

Definition at line 117 of file rdft.c.

Referenced by ff_dct_end(), and wmavoice_decode_end().

ff_rdft_init_arm()

void ff_rdft_init_arm

(

RDFTContext *

s

)

Definition at line 27 of file rdft_init_arm.c.

Referenced by ff_rdft_init().