FFmpeg
dcadsp_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 "libavutil/attributes.h"
20 #include "libavutil/cpu.h"
21 #include "libavutil/x86/cpu.h"
22 #include "libavcodec/dcadsp.h"
23 
24 #define LFE_FIR_FLOAT_FUNC(opt) \
25 void ff_lfe_fir0_float_##opt(float *pcm_samples, int32_t *lfe_samples, \
26  const float *filter_coeff, ptrdiff_t npcmblocks); \
27 void ff_lfe_fir1_float_##opt(float *pcm_samples, int32_t *lfe_samples, \
28  const float *filter_coeff, ptrdiff_t npcmblocks);
29 
34 
36 {
38 
40  s->lfe_fir_float[0] = ff_lfe_fir0_float_sse2;
42  s->lfe_fir_float[1] = ff_lfe_fir1_float_sse3;
43  if (EXTERNAL_AVX(cpu_flags)) {
44  s->lfe_fir_float[0] = ff_lfe_fir0_float_avx;
45  s->lfe_fir_float[1] = ff_lfe_fir1_float_avx;
46  }
48  s->lfe_fir_float[0] = ff_lfe_fir0_float_fma3;
49 }
cpu.h
LFE_FIR_FLOAT_FUNC
#define LFE_FIR_FLOAT_FUNC(opt)
Definition: dcadsp_init.c:24
av_get_cpu_flags
int av_get_cpu_flags(void)
Return the flags which specify extensions supported by the CPU.
Definition: cpu.c:109
cpu_flags
static atomic_int cpu_flags
Definition: cpu.c:56
av_cold
#define av_cold
Definition: attributes.h:90
s
#define s(width, name)
Definition: cbs_vp9.c:198
ff_dcadsp_init_x86
av_cold void ff_dcadsp_init_x86(DCADSPContext *s)
Definition: dcadsp_init.c:35
EXTERNAL_SSE3
#define EXTERNAL_SSE3(flags)
Definition: cpu.h:62
DCADSPContext
Definition: dcadsp.h:30
cpu.h
attributes.h
EXTERNAL_SSE2
#define EXTERNAL_SSE2(flags)
Definition: cpu.h:59
dcadsp.h
EXTERNAL_AVX
#define EXTERNAL_AVX(flags)
Definition: cpu.h:70
EXTERNAL_FMA3
#define EXTERNAL_FMA3(flags)
Definition: cpu.h:74