FFmpeg
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libavcodec
arm
lossless_audiodsp_init_arm.c
Go to the documentation of this file.
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/*
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* Copyright (c) 2011 Mans Rullgard <mans@mansr.com>
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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 <stdint.h>
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#include "
libavutil/attributes.h
"
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#include "
libavutil/cpu.h
"
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#include "
libavutil/arm/cpu.h
"
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#include "
libavcodec/lossless_audiodsp.h
"
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int32_t
ff_scalarproduct_and_madd_int16_neon
(int16_t *v1,
const
int16_t *v2,
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const
int16_t *v3,
int
len
,
int
mul);
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av_cold
void
ff_llauddsp_init_arm
(
LLAudDSPContext
*
c
)
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{
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int
cpu_flags
=
av_get_cpu_flags
();
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if
(
have_neon
(
cpu_flags
)) {
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c
->scalarproduct_and_madd_int16 =
ff_scalarproduct_and_madd_int16_neon
;
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}
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}
int32_t
int32_t
Definition
audioconvert.c:56
have_neon
#define have_neon(flags)
Definition
cpu.h:26
cpu.h
attributes.h
Macro definitions for various function/variable attributes.
av_cold
#define av_cold
Definition
attributes.h:117
cpu_flags
static atomic_int cpu_flags
Definition
cpu.c:56
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.h
lossless_audiodsp.h
ff_scalarproduct_and_madd_int16_neon
int32_t ff_scalarproduct_and_madd_int16_neon(int16_t *v1, const int16_t *v2, const int16_t *v3, int len, int mul)
ff_llauddsp_init_arm
av_cold void ff_llauddsp_init_arm(LLAudDSPContext *c)
Definition
lossless_audiodsp_init_arm.c:31
LLAudDSPContext
Definition
lossless_audiodsp.h:28
len
int len
Definition
vorbis_enc_data.h:426
c
static double c[64]
Definition
vsrc_mptestsrc.c:89
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