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Data Structures | Macros | Functions
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

#define AVCODEC_RDFT_H

Definition at line 23 of file rdft.h.

Function Documentation

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

Set up a real FFT.

Parameters
nbitslog2 of the length of the input array
transthe type of transform

Definition at line 86 of file rdft.c.

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

void ff_rdft_end ( RDFTContext s)

Definition at line 112 of file rdft.c.

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

void ff_rdft_init_arm ( RDFTContext s)

Definition at line 27 of file rdft_init_arm.c.

Referenced by ff_rdft_init().