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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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}
ff_llauddsp_init_arm
av_cold void ff_llauddsp_init_arm(LLAudDSPContext *c)
Definition:
lossless_audiodsp_init_arm.c:31
attributes.h
Macro definitions for various function/variable attributes.
av_cold
#define av_cold
Definition:
attributes.h:82
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)
LLAudDSPContext
Definition:
lossless_audiodsp.h:28
have_neon
#define have_neon(flags)
Definition:
cpu.h:27
lossless_audiodsp.h
int32_t
int32_t
Definition:
audio_convert.c:194
cpu.h
cpu.h
LLAudDSPContext::scalarproduct_and_madd_int16
int32_t(* scalarproduct_and_madd_int16)(int16_t *v1, const int16_t *v2, const int16_t *v3, int len, int mul)
Calculate scalar product of v1 and v2, and v1[i] += v3[i] * mul.
Definition:
lossless_audiodsp.h:35
av_get_cpu_flags
int av_get_cpu_flags(void)
Return the flags which specify extensions supported by the CPU.
Definition:
cpu.c:76
c
static double c[64]
Definition:
vsrc_mptestsrc.c:87
len
int len
Definition:
vorbis_enc_data.h:452
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