fft_init.c File Reference

#include "config.h"
#include "libavutil/attributes.h"
#include "libavutil/cpu.h"
#include "libavutil/ppc/cpu.h"
#include "libavutil/ppc/util_altivec.h"
#include "libavcodec/fft.h"

Go to the source code of this file.

Functions
void	ff_fft_calc_altivec (FFTContext *s, FFTComplex *z)
	Do a complex FFT with the parameters defined in ff_fft_init(). More...
void	ff_fft_calc_interleave_altivec (FFTContext *s, FFTComplex *z)
av_cold void	ff_fft_init_ppc (FFTContext *s)

Function Documentation

ff_fft_calc_altivec()

void ff_fft_calc_altivec	(	FFTContext *	s,
		FFTComplex *	z
	)

Do a complex FFT with the parameters defined in ff_fft_init().

The input data must be permuted before with s->revtab table. No 1.0 / sqrt(n) normalization is done. AltiVec-enabled: This code assumes that the 'z' pointer is 16 bytes-aligned. It also assumes all FFTComplex are 8 bytes-aligned pairs of floats.

ff_fft_calc_interleave_altivec()

void ff_fft_calc_interleave_altivec	(	FFTContext *	s,
		FFTComplex *	z
	)

Referenced by ff_fft_init_ppc().

ff_fft_init_ppc()

av_cold void ff_fft_init_ppc

(

FFTContext *

s

)

Definition at line 152 of file fft_init.c.

Referenced by ff_fft_init().