FFmpeg
libavcodec
x86
g722dsp_init.c
Go to the documentation of this file.
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/*
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* Copyright (c) 2014 James Almer
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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/x86/cpu.h
"
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#include "
libavcodec/g722dsp.h
"
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void
ff_g722_apply_qmf_sse2
(
const
int16_t *prev_samples,
int
xout[2]);
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av_cold
void
ff_g722dsp_init_x86
(
G722DSPContext
*dsp)
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{
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int
cpu_flags
=
av_get_cpu_flags
();
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if
(
EXTERNAL_SSE2
(
cpu_flags
))
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dsp->
apply_qmf
=
ff_g722_apply_qmf_sse2
;
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}
cpu.h
G722DSPContext
Definition:
g722dsp.h:26
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
av_cold
#define av_cold
Definition:
attributes.h:90
ff_g722dsp_init_x86
av_cold void ff_g722dsp_init_x86(G722DSPContext *dsp)
Definition:
g722dsp_init.c:29
G722DSPContext::apply_qmf
void(* apply_qmf)(const int16_t *prev_samples, int xout[2])
Definition:
g722dsp.h:27
ff_g722_apply_qmf_sse2
void ff_g722_apply_qmf_sse2(const int16_t *prev_samples, int xout[2])
attributes.h
EXTERNAL_SSE2
#define EXTERNAL_SSE2(flags)
Definition:
cpu.h:59
g722dsp.h
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