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.
52 lines
1.5 KiB
52 lines
1.5 KiB
9 years ago
|
/*
|
||
|
|
* This file is part of Libav.
|
||
|
|
*
|
||
|
|
* Libav 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.
|
||
|
|
*
|
||
|
|
* Libav 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 Libav; if not, write to the Free Software
|
||
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "config.h"
|
||
|
|
|
||
|
|
#include "libavutil/attributes.h"
|
||
|
|
#include "libavutil/cpu.h"
|
||
|
|
#include "libavutil/x86/cpu.h"
|
||
|
|
|
||
|
|
#include "mdct.h"
|
||
|
|
|
||
|
|
av_cold void ff_mdct_init_x86(FFTContext *s)
|
||
|
|
{
|
||
|
|
int cpu_flags = av_get_cpu_flags();
|
||
|
|
|
||
|
|
#if ARCH_X86_32
|
||
|
|
if (EXTERNAL_AMD3DNOW(cpu_flags)) {
|
||
|
|
s->imdct_calc = ff_imdct_calc_3dnow;
|
||
|
|
s->imdct_half = ff_imdct_half_3dnow;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (EXTERNAL_AMD3DNOWEXT(cpu_flags)) {
|
||
|
|
s->imdct_calc = ff_imdct_calc_3dnowext;
|
||
|
|
s->imdct_half = ff_imdct_half_3dnowext;
|
||
|
|
}
|
||
|
|
#endif /* ARCH_X86_32 */
|
||
|
|
|
||
|
|
if (EXTERNAL_SSE(cpu_flags)) {
|
||
|
|
s->imdct_calc = ff_imdct_calc_sse;
|
||
|
|
s->imdct_half = ff_imdct_half_sse;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (EXTERNAL_AVX_FAST(cpu_flags) && s->nbits >= 5) {
|
||
|
|
s->imdct_half = ff_imdct_half_avx;
|
||
|
|
}
|
||
|
|
}
|