avfft.c File Reference

#include <stddef.h>
#include <string.h>
#include "libavutil/attributes.h"
#include "libavutil/macros.h"
#include "libavutil/mem.h"
#include "libavutil/tx.h"
#include "avfft.h"

Go to the source code of this file.

Data Structures
struct	AVTXWrapper

Functions
FFTContext *	av_fft_init (int nbits, int inverse)
	Set up a complex FFT. More...
void	av_fft_permute (FFTContext *s, FFTComplex *z)
	Do the permutation needed BEFORE calling ff_fft_calc(). More...
void	av_fft_calc (FFTContext *s, FFTComplex *z)
	Do a complex FFT with the parameters defined in av_fft_init(). More...
av_cold void	av_fft_end (FFTContext *s)
FFTContext *	av_mdct_init (int nbits, int inverse, double scale)
void	av_imdct_calc (FFTContext *s, FFTSample *output, const FFTSample *input)
void	av_imdct_half (FFTContext *s, FFTSample *output, const FFTSample *input)
void	av_mdct_calc (FFTContext *s, FFTSample *output, const FFTSample *input)
av_cold void	av_mdct_end (FFTContext *s)
RDFTContext *	av_rdft_init (int nbits, enum RDFTransformType trans)
	Set up a real FFT. More...
void	av_rdft_calc (RDFTContext *s, FFTSample *data)
av_cold void	av_rdft_end (RDFTContext *s)
DCTContext *	av_dct_init (int nbits, enum DCTTransformType inverse)
	Set up DCT. More...
void	av_dct_calc (DCTContext *s, FFTSample *data)
av_cold void	av_dct_end (DCTContext *s)