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libavcodec
x86
lossless_audiodsp_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 "
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 "
libavcodec/lossless_audiodsp.h
"
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int32_t
ff_scalarproduct_and_madd_int16_mmxext
(int16_t *v1,
const
int16_t *v2,
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const
int16_t *v3,
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int
order,
int
mul);
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int32_t
ff_scalarproduct_and_madd_int16_sse2
(int16_t *v1,
const
int16_t *v2,
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const
int16_t *v3,
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int
order,
int
mul);
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int32_t
ff_scalarproduct_and_madd_int16_ssse3
(int16_t *v1,
const
int16_t *v2,
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const
int16_t *v3,
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int
order,
int
mul);
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av_cold
void
ff_llauddsp_init_x86
(
LLAudDSPContext
*
c
)
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{
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#if HAVE_YASM
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int
cpu_flags =
av_get_cpu_flags
();
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if
(
EXTERNAL_MMXEXT
(cpu_flags))
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c->
scalarproduct_and_madd_int16
=
ff_scalarproduct_and_madd_int16_mmxext
;
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if
(
EXTERNAL_SSE2
(cpu_flags))
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c->
scalarproduct_and_madd_int16
=
ff_scalarproduct_and_madd_int16_sse2
;
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if
(
EXTERNAL_SSSE3
(cpu_flags) &&
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!(cpu_flags & (
AV_CPU_FLAG_SSE42
|
AV_CPU_FLAG_3DNOW
)))
// cachesplit
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c->
scalarproduct_and_madd_int16
=
ff_scalarproduct_and_madd_int16_ssse3
;
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#endif
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}
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1.8.1.2