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
#define	SINTABLE_CONST
#define	SINTABLE(size)   SINTABLE_CONST DECLARE_ALIGNED(16, FFTSample, ff_sin_##size)[size/2]

Functions
	SINTABLE (16)
	SINTABLE (32)
	SINTABLE (64)
	SINTABLE (128)
	SINTABLE (256)
	SINTABLE (512)
	SINTABLE (1024)
	SINTABLE (2048)
	SINTABLE (4096)
	SINTABLE (8192)
	SINTABLE (16384)
	SINTABLE (32768)
	SINTABLE (65536)
int	ff_rdft_init (RDFTContext *s, int nbits, enum RDFTransformType trans)
	Set up a real FFT.
void	ff_rdft_end (RDFTContext *s)
void	ff_rdft_init_arm (RDFTContext *s)

Macro Definition Documentation

#define AVCODEC_RDFT_H

Definition at line 23 of file rdft.h.

#define SINTABLE_CONST

Definition at line 31 of file rdft.h.

#define SINTABLE

(

size

)

SINTABLE_CONST DECLARE_ALIGNED(16, FFTSample, ff_sin_##size)[size/2]

Definition at line 34 of file rdft.h.

Function Documentation

SINTABLE

(

16

)

SINTABLE

(

32

)

SINTABLE

(

64

)

SINTABLE

(

128

)

SINTABLE

(

256

)

SINTABLE

(

512

)

SINTABLE

(

1024

)

SINTABLE

(

2048

)

SINTABLE

(

4096

)

SINTABLE

(

8192

)

SINTABLE

(

16384

)

SINTABLE

(

32768

)

SINTABLE

(

65536

)

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 99 of file rdft.c.

Referenced by decode_init(), ff_dct_init(), main(), qdm2_decode_init(), and wmavoice_decode_init().

void ff_rdft_end

(

RDFTContext *

s

)

Definition at line 131 of file rdft.c.

Referenced by decode_end(), ff_dct_end(), main(), qdm2_decode_close(), and wmavoice_decode_end().

void ff_rdft_init_arm

(

RDFTContext *

s

)

Referenced by ff_rdft_init().