kolibrios/contrib/sdk/sources/ffmpeg/libavutil/x86/lls_init.c
Sergey Semyonov (Serge) 754f9336f0 upload sdk
git-svn-id: svn://kolibrios.org@4349 a494cfbc-eb01-0410-851d-a64ba20cac60
2013-12-15 08:09:20 +00:00

42 lines
1.4 KiB
C

/*
* linear least squares model
*
* Copyright (c) 2013 Loren Merritt
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "libavutil/lls2.h"
#include "libavutil/x86/cpu.h"
void ff_update_lls_sse2(LLSModel2 *m, double *var);
void ff_update_lls_avx(LLSModel2 *m, double *var);
double ff_evaluate_lls_sse2(LLSModel2 *m, double *var, int order);
av_cold void ff_init_lls_x86(LLSModel2 *m)
{
int cpu_flags = av_get_cpu_flags();
if (EXTERNAL_SSE2(cpu_flags)) {
m->update_lls = ff_update_lls_sse2;
if (m->indep_count >= 4)
m->evaluate_lls = ff_evaluate_lls_sse2;
}
if (EXTERNAL_AVX(cpu_flags)) {
m->update_lls = ff_update_lls_avx;
}
}