libavcodec/avfft.c File Reference

#include "libavutil/mem.h"
#include "avfft.h"
#include "fft.h"
#include "rdft.h"
#include "dct.h"

Go to the source code of this file.


FFTContextav_fft_init (int nbits, int inverse)
 Set up a complex FFT.
void av_fft_permute (FFTContext *s, FFTComplex *z)
 Do the permutation needed BEFORE calling ff_fft_calc().
void av_fft_calc (FFTContext *s, FFTComplex *z)
 Do a complex FFT with the parameters defined in av_fft_init().
void av_fft_end (FFTContext *s)

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