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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
 
#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
nbitslog2 of the length of the input array
transthe 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 130 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().