mirror of https://github.com/FFmpeg/FFmpeg.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
41 lines
1.4 KiB
41 lines
1.4 KiB
/* |
|
* 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; |
|
} |
|
}
|
|
|