FFmpeg
libavcodec
x86
vorbisdsp_init.c
Go to the documentation of this file.
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/*
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* Copyright (C) 2006 Loren Merritt <lorenm@u.washington.edu>
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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 "
libavcodec/vorbisdsp.h
"
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void
ff_vorbis_inverse_coupling_sse
(
float
*mag,
float
*ang,
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ptrdiff_t blocksize);
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av_cold
void
ff_vorbisdsp_init_x86
(
VorbisDSPContext
*dsp)
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{
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int
cpu_flags
=
av_get_cpu_flags
();
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if
(
EXTERNAL_SSE
(
cpu_flags
))
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dsp->
vorbis_inverse_coupling
=
ff_vorbis_inverse_coupling_sse
;
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}
cpu.h
av_get_cpu_flags
int av_get_cpu_flags(void)
Return the flags which specify extensions supported by the CPU.
Definition:
cpu.c:103
cpu_flags
static atomic_int cpu_flags
Definition:
cpu.c:52
VorbisDSPContext
Definition:
vorbisdsp.h:24
av_cold
#define av_cold
Definition:
attributes.h:90
EXTERNAL_SSE
#define EXTERNAL_SSE(flags)
Definition:
cpu.h:58
ff_vorbisdsp_init_x86
av_cold void ff_vorbisdsp_init_x86(VorbisDSPContext *dsp)
Definition:
vorbisdsp_init.c:30
VorbisDSPContext::vorbis_inverse_coupling
void(* vorbis_inverse_coupling)(float *mag, float *ang, ptrdiff_t blocksize)
Definition:
vorbisdsp.h:26
cpu.h
vorbisdsp.h
attributes.h
ff_vorbis_inverse_coupling_sse
void ff_vorbis_inverse_coupling_sse(float *mag, float *ang, ptrdiff_t blocksize)
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