FFmpeg  4.4.4
af_afir_init.c
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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 #include "libavutil/attributes.h"
21 #include "libavutil/cpu.h"
22 #include "libavutil/x86/cpu.h"
23 #include "libavfilter/af_afir.h"
24 
25 void ff_fcmul_add_sse3(float *sum, const float *t, const float *c,
26  ptrdiff_t len);
27 void ff_fcmul_add_avx(float *sum, const float *t, const float *c,
28  ptrdiff_t len);
29 
31 {
33 
34  if (EXTERNAL_SSE3(cpu_flags)) {
35  s->fcmul_add = ff_fcmul_add_sse3;
36  }
38  s->fcmul_add = ff_fcmul_add_avx;
39  }
40 }
av_cold void ff_afir_init_x86(AudioFIRDSPContext *s)
Definition: af_afir_init.c:30
void ff_fcmul_add_sse3(float *sum, const float *t, const float *c, ptrdiff_t len)
void ff_fcmul_add_avx(float *sum, const float *t, const float *c, ptrdiff_t len)
Macro definitions for various function/variable attributes.
#define av_cold
Definition: attributes.h:88
#define s(width, name)
Definition: cbs_vp9.c:257
static atomic_int cpu_flags
Definition: cpu.c:50
int av_get_cpu_flags(void)
Return the flags which specify extensions supported by the CPU.
Definition: cpu.c:95
int len
static double c[64]
#define EXTERNAL_SSE3(flags)
Definition: cpu.h:62
#define EXTERNAL_AVX_FAST(flags)
Definition: cpu.h:71