FFmpeg
4.4.6
libavfilter
x86
vf_convolution_init.c
Go to the documentation of this file.
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/*
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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/convolution.h
"
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void
ff_filter_3x3_sse4
(
uint8_t
*dst,
int
width
,
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float
rdiv,
float
bias,
const
int
*
const
matrix,
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const
uint8_t
*
c
[],
int
peak,
int
radius,
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int
dstride,
int
stride
,
int
size
);
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av_cold
void
ff_convolution_init_x86
(
ConvolutionContext
*
s
)
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{
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#if ARCH_X86_64
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int
i
;
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int
cpu_flags
=
av_get_cpu_flags
();
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for
(
i
= 0;
i
< 4;
i
++) {
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if
(
s
->mode[
i
] ==
MATRIX_SQUARE
) {
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if
(
s
->matrix_length[
i
] == 9 &&
s
->depth == 8) {
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if
(
EXTERNAL_SSE4
(
cpu_flags
))
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s
->filter[
i
] =
ff_filter_3x3_sse4
;
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}
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}
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}
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#endif
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}
attributes.h
Macro definitions for various function/variable attributes.
av_cold
#define av_cold
Definition:
attributes.h:88
uint8_t
uint8_t
Definition:
audio_convert.c:194
s
#define s(width, name)
Definition:
cbs_vp9.c:257
config.h
convolution.h
MATRIX_SQUARE
@ MATRIX_SQUARE
Definition:
convolution.h:26
cpu_flags
static atomic_int cpu_flags
Definition:
cpu.c:50
av_get_cpu_flags
int av_get_cpu_flags(void)
Return the flags which specify extensions supported by the CPU.
Definition:
cpu.c:95
cpu.h
i
int i
Definition:
input.c:407
stride
int stride
Definition:
mace.c:144
ConvolutionContext
Definition:
convolution.h:32
width
#define width
size
int size
Definition:
twinvq_data.h:10344
ff_filter_3x3_sse4
void ff_filter_3x3_sse4(uint8_t *dst, int width, float rdiv, float bias, const int *const matrix, const uint8_t *c[], int peak, int radius, int dstride, int stride, int size)
ff_convolution_init_x86
av_cold void ff_convolution_init_x86(ConvolutionContext *s)
Definition:
vf_convolution_init.c:32
c
static double c[64]
Definition:
vsrc_mptestsrc.c:92
cpu.h
EXTERNAL_SSE4
#define EXTERNAL_SSE4(flags)
Definition:
cpu.h:68
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