FFmpeg
Functions
avfft.c File Reference
#include "libavutil/attributes.h"
#include "libavutil/mem.h"
#include "avfft.h"
#include "fft.h"
#include "rdft.h"
#include "dct.h"

Go to the source code of this file.

Functions

FFTContextav_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)