FFmpeg
celt_pvq_init.c
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1 /*
2  * Opus encoder assembly optimizations
3  * Copyright (C) 2017 Ivan Kalvachev <ikalvachev@gmail.com>
4  *
5  * This file is part of FFmpeg.
6  *
7  * FFmpeg is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * FFmpeg is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with FFmpeg; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21 
22 #include "config.h"
23 
24 #include "libavutil/attributes.h"
25 #include "libavutil/x86/cpu.h"
26 #include "libavcodec/opus_pvq.h"
27 
28 extern float ff_pvq_search_approx_sse2(float *X, int *y, int K, int N);
29 extern float ff_pvq_search_approx_sse4(float *X, int *y, int K, int N);
30 extern float ff_pvq_search_exact_avx (float *X, int *y, int K, int N);
31 
33 {
35 
37  s->pvq_search = ff_pvq_search_approx_sse2;
38 
40  s->pvq_search = ff_pvq_search_approx_sse4;
41 
43  s->pvq_search = ff_pvq_search_exact_avx;
44 }
cpu.h
ff_pvq_search_approx_sse4
float ff_pvq_search_approx_sse4(float *X, int *y, int K, int N)
ff_pvq_search_approx_sse2
float ff_pvq_search_approx_sse2(float *X, int *y, int K, int N)
av_get_cpu_flags
int av_get_cpu_flags(void)
Return the flags which specify extensions supported by the CPU.
Definition: cpu.c:96
cpu_flags
static atomic_int cpu_flags
Definition: cpu.c:50
CeltPVQ
Definition: opus_pvq.h:37
X
@ X
Definition: vf_addroi.c:26
av_cold
#define av_cold
Definition: attributes.h:90
s
#define s(width, name)
Definition: cbs_vp9.c:257
EXTERNAL_AVX_FAST
#define EXTERNAL_AVX_FAST(flags)
Definition: cpu.h:71
ff_celt_pvq_init_x86
av_cold void ff_celt_pvq_init_x86(CeltPVQ *s)
Definition: celt_pvq_init.c:32
ff_pvq_search_exact_avx
float ff_pvq_search_exact_avx(float *X, int *y, int K, int N)
opus_pvq.h
attributes.h
EXTERNAL_SSE2
#define EXTERNAL_SSE2(flags)
Definition: cpu.h:59
N
#define N
Definition: af_mcompand.c:53
EXTERNAL_SSE4
#define EXTERNAL_SSE4(flags)
Definition: cpu.h:68