ffmpeg/libavcodec/x86/xvididct_init.c
Diego Biurrun 84d173d3de xvididct: Ensure that the scantable permutation is always set correctly
This fixes cases where the scantable permuation would get overwritten by
the general idctdsp initialization.
2014-08-08 11:13:29 -07:00

53 lines
1.7 KiB
C

/*
* 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 "libavcodec/idctdsp.h"
#include "libavcodec/xvididct.h"
#include "idct_xvid.h"
#include "idctdsp.h"
av_cold void ff_xvididct_init_x86(IDCTDSPContext *c)
{
int cpu_flags = av_get_cpu_flags();
if (INLINE_MMX(cpu_flags)) {
c->idct_put = ff_idct_xvid_mmx_put;
c->idct_add = ff_idct_xvid_mmx_add;
c->idct = ff_idct_xvid_mmx;
c->perm_type = FF_IDCT_PERM_NONE;
}
if (INLINE_MMXEXT(cpu_flags)) {
c->idct_put = ff_idct_xvid_mmxext_put;
c->idct_add = ff_idct_xvid_mmxext_add;
c->idct = ff_idct_xvid_mmxext;
c->perm_type = FF_IDCT_PERM_NONE;
}
if (INLINE_SSE2(cpu_flags)) {
c->idct_put = ff_idct_xvid_sse2_put;
c->idct_add = ff_idct_xvid_sse2_add;
c->idct = ff_idct_xvid_sse2;
c->perm_type = FF_IDCT_PERM_SSE2;
}
}