FFmpeg
fixed_dsp_init.c
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 #include "config.h"
20 
21 #include "libavutil/attributes.h"
22 #include "libavutil/cpu.h"
23 #include "libavutil/fixed_dsp.h"
24 #include "cpu.h"
25 
26 void ff_butterflies_fixed_sse2(int *src0, int *src1, int len);
27 
29 {
31 
32  if (EXTERNAL_SSE2(cpu_flags)) {
34  }
35 }
AVFixedDSPContext
Definition: fixed_dsp.h:56
av_get_cpu_flags
int av_get_cpu_flags(void)
Return the flags which specify extensions supported by the CPU.
Definition: cpu.c:95
ff_fixed_dsp_init_x86
av_cold void ff_fixed_dsp_init_x86(AVFixedDSPContext *fdsp)
Definition: fixed_dsp_init.c:28
cpu_flags
static atomic_int cpu_flags
Definition: cpu.c:50
av_cold
#define av_cold
Definition: attributes.h:90
ff_butterflies_fixed_sse2
void ff_butterflies_fixed_sse2(int *src0, int *src1, int len)
fixed_dsp.h
cpu.h
attributes.h
EXTERNAL_SSE2
#define EXTERNAL_SSE2(flags)
Definition: cpu.h:59
src0
#define src0
Definition: h264pred.c:139
AVFixedDSPContext::butterflies_fixed
void(* butterflies_fixed)(int *av_restrict v1, int *av_restrict v2, int len)
Calculate the sum and difference of two vectors of integers.
Definition: fixed_dsp.h:153
src1
#define src1
Definition: h264pred.c:140
len
int len
Definition: vorbis_enc_data.h:426