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libavcodec
x86
sbrdsp_init.c
Go to the documentation of this file.
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/*
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* AAC Spectral Band Replication decoding functions
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* Copyright (c) 2012 Christophe Gisquet <christophe.gisquet@gmail.com>
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*
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* This file is part of Libav.
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*
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* Libav 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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* Libav 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 Libav; 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/cpu.h
"
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#include "
libavutil/x86/cpu.h
"
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#include "
libavcodec/sbrdsp.h
"
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float
ff_sbr_sum_square_sse
(
float
(*x)[2],
int
n);
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void
ff_sbr_hf_g_filt_sse
(
float
(*
Y
)[2],
const
float
(*X_high)[40][2],
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const
float
*g_filt,
int
m_max, intptr_t ixh);
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void
ff_sbr_hf_gen_sse
(
float
(*X_high)[2],
const
float
(*X_low)[2],
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const
float
alpha0[2],
const
float
alpha1[2],
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float
bw,
int
start,
int
end
);
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void
ff_sbrdsp_init_x86
(
SBRDSPContext
*s)
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{
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int
mm_flags =
av_get_cpu_flags
();
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if
(
EXTERNAL_SSE
(mm_flags)) {
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s->
sum_square
=
ff_sbr_sum_square_sse
;
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s->
hf_g_filt
=
ff_sbr_hf_g_filt_sse
;
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s->
hf_gen
=
ff_sbr_hf_gen_sse
;
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}
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}
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