FFmpeg
4.0
libavfilter
x86
af_afir_init.c
Go to the documentation of this file.
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/*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "config.h"
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#include "
libavutil/attributes.h
"
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#include "
libavutil/cpu.h
"
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#include "
libavutil/x86/cpu.h
"
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#include "
libavfilter/af_afir.h
"
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void
ff_fcmul_add_sse3
(
float
*sum,
const
float
*t,
const
float
*
c
,
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ptrdiff_t
len
);
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av_cold
void
ff_afir_init_x86
(
AudioFIRContext
*
s
)
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{
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int
cpu_flags
=
av_get_cpu_flags
();
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if
(
EXTERNAL_SSE3
(cpu_flags)) {
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s->
fcmul_add
=
ff_fcmul_add_sse3
;
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}
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}
s
const char * s
Definition:
avisynth_c.h:768
cpu_flags
static atomic_int cpu_flags
Definition:
cpu.c:50
cpu.h
attributes.h
Macro definitions for various function/variable attributes.
av_cold
#define av_cold
Definition:
attributes.h:82
AudioFIRContext::fcmul_add
void(* fcmul_add)(float *sum, const float *t, const float *c, ptrdiff_t len)
Definition:
af_afir.h:77
EXTERNAL_SSE3
#define EXTERNAL_SSE3(flags)
Definition:
cpu.h:62
cpu.h
ff_afir_init_x86
av_cold void ff_afir_init_x86(AudioFIRContext *s)
Definition:
af_afir_init.c:28
av_get_cpu_flags
int av_get_cpu_flags(void)
Return the flags which specify extensions supported by the CPU.
Definition:
cpu.c:93
ff_fcmul_add_sse3
void ff_fcmul_add_sse3(float *sum, const float *t, const float *c, ptrdiff_t len)
af_afir.h
c
static double c[64]
Definition:
vsrc_mptestsrc.c:87
AudioFIRContext
Definition:
af_afir.h:37
len
int len
Definition:
vorbis_enc_data.h:452
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