mirror of https://git.ffmpeg.org/ffmpeg.git
46 lines
1.6 KiB
C
46 lines
1.6 KiB
C
|
/*
|
||
|
|
* x86-optimized AC-3 DSP utils
|
||
|
|
* Copyright (c) 2011 Justin Ruggles
|
||
|
|
*
|
||
|
|
* 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/x86_cpu.h"
|
||
|
|
#include "dsputil_mmx.h"
|
||
|
|
#include "libavcodec/ac3dsp.h"
|
||
|
|
|
||
|
|
extern void ff_ac3_exponent_min_mmx (uint8_t *exp, int num_reuse_blocks, int nb_coefs);
|
||
|
|
extern void ff_ac3_exponent_min_mmxext(uint8_t *exp, int num_reuse_blocks, int nb_coefs);
|
||
|
|
extern void ff_ac3_exponent_min_sse2 (uint8_t *exp, int num_reuse_blocks, int nb_coefs);
|
||
|
|
|
||
|
|
av_cold void ff_ac3dsp_init_x86(AC3DSPContext *c)
|
||
|
|
{
|
||
|
|
int mm_flags = av_get_cpu_flags();
|
||
|
|
|
||
|
|
#if HAVE_YASM
|
||
|
|
if (mm_flags & AV_CPU_FLAG_MMX) {
|
||
|
|
c->ac3_exponent_min = ff_ac3_exponent_min_mmx;
|
||
|
|
}
|
||
|
|
if (mm_flags & AV_CPU_FLAG_MMX2 && HAVE_MMX2) {
|
||
|
|
c->ac3_exponent_min = ff_ac3_exponent_min_mmxext;
|
||
|
|
}
|
||
|
|
if (mm_flags & AV_CPU_FLAG_SSE2 && HAVE_SSE) {
|
||
|
|
c->ac3_exponent_min = ff_ac3_exponent_min_sse2;
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
}
|