x86/fft.h
Go to the documentation of this file.
1 /*
2  * This file is part of FFmpeg.
3  *
4  * FFmpeg is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Lesser General Public
6  * License as published by the Free Software Foundation; either
7  * version 2.1 of the License, or (at your option) any later version.
8  *
9  * FFmpeg is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12  * Lesser General Public License for more details.
13  *
14  * You should have received a copy of the GNU Lesser General Public
15  * License along with FFmpeg; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17  */
18 
19 #ifndef AVCODEC_X86_FFT_H
20 #define AVCODEC_X86_FFT_H
21 
22 #include "libavcodec/fft.h"
23 
29 
37 void ff_dct32_float_sse(FFTSample *out, const FFTSample *in);
38 void ff_dct32_float_sse2(FFTSample *out, const FFTSample *in);
39 void ff_dct32_float_avx(FFTSample *out, const FFTSample *in);
40 
41 #endif /* AVCODEC_X86_FFT_H */
void ff_fft_calc_avx(FFTContext *s, FFTComplex *z)
const char * s
Definition: avisynth_c.h:668
void ff_imdct_half_3dnowext(FFTContext *s, FFTSample *output, const FFTSample *input)
About Git write you should know how to use GIT properly Luckily Git comes with excellent documentation git help man git shows you the available git< command > help man git< command > shows information about the subcommand< command > The most comprehensive manual is the website Git Reference visit they are quite exhaustive You do not need a special username or password All you need is to provide a ssh public key to the Git server admin What follows now is a basic introduction to Git and some FFmpeg specific guidelines Read it at least if you are granted commit privileges to the FFmpeg project you are expected to be familiar with these rules I if not You can get git from etc no matter how small Every one of them has been saved from looking like a fool by this many times It s very easy for stray debug output or cosmetic modifications to slip in
Definition: git-howto.txt:5
void ff_imdct_half_3dnow(FFTContext *s, FFTSample *output, const FFTSample *input)
void ff_dct32_float_avx(FFTSample *out, const FFTSample *in)
void ff_dct32_float_sse2(FFTSample *out, const FFTSample *in)
void ff_dct32_float_sse(FFTSample *out, const FFTSample *in)
void ff_fft_calc_3dnow(FFTContext *s, FFTComplex *z)
void ff_fft_calc_sse(FFTContext *s, FFTComplex *z)
these buffered frames must be flushed immediately if a new input produces new the filter must not call request_frame to get more It must just process the frame or queue it The task of requesting more frames is left to the filter s request_frame method or the application If a filter has several the filter must be ready for frames arriving randomly on any input any filter with several inputs will most likely require some kind of queuing mechanism It is perfectly acceptable to have a limited queue and to drop frames when the inputs are too unbalanced request_frame This method is called when a frame is wanted on an output For an input
float FFTSample
Definition: avfft.h:35
void ff_imdct_calc_3dnowext(FFTContext *s, FFTSample *output, const FFTSample *input)
Definition: fft.h:62
void ff_imdct_calc_sse(FFTContext *s, FFTSample *output, const FFTSample *input)
void ff_imdct_half_sse(FFTContext *s, FFTSample *output, const FFTSample *input)
void ff_imdct_calc_3dnow(FFTContext *s, FFTSample *output, const FFTSample *input)
void ff_fft_calc_3dnowext(FFTContext *s, FFTComplex *z)
void ff_imdct_half_avx(FFTContext *s, FFTSample *output, const FFTSample *input)
these buffered frames must be flushed immediately if a new input produces new output(Example:frame rate-doubling filter:filter_frame must(1) flush the second copy of the previous frame, if it is still there,(2) push the first copy of the incoming frame,(3) keep the second copy for later.) If the input frame is not enough to produce output
void ff_fft_permute_sse(FFTContext *s, FFTComplex *z)