1 /*
2 * This file is part of FFmpeg.
3 *
4 * FFmpeg is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
8 *
9 * FFmpeg is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
13 *
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with FFmpeg; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17 */
18
19 #include "config.h"
20 #include "libavutil/attributes.h"
21 #include "libavutil/cpu.h"
22 #include "libavutil/x86/cpu.h"
23 #include "libavcodec/idctdsp.h"
24 #include "libavcodec/xvididct.h"
25
26 #include "xvididct.h"
27
ff_xvid_idct_init_x86(IDCTDSPContext *c, AVCodecContext *avctx, unsigned high_bit_depth)28 av_cold void ff_xvid_idct_init_x86(IDCTDSPContext *c, AVCodecContext *avctx,
29 unsigned high_bit_depth)
30 {
31 #if HAVE_X86ASM
32 int cpu_flags = av_get_cpu_flags();
33
34 if (high_bit_depth ||
35 !(avctx->idct_algo == FF_IDCT_AUTO ||
36 avctx->idct_algo == FF_IDCT_XVID))
37 return;
38
39 if (EXTERNAL_SSE2(cpu_flags)) {
40 c->idct_put = ff_xvid_idct_put_sse2;
41 c->idct_add = ff_xvid_idct_add_sse2;
42 c->idct = ff_xvid_idct_sse2;
43 c->perm_type = FF_IDCT_PERM_SSE2;
44 }
45 #endif /* HAVE_X86ASM */
46 }
47