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 "libavutil/attributes.h"
20 #include "libavutil/cpu.h"
21 #include "libavutil/x86/cpu.h"
22 #include "libavcodec/avcodec.h"
23 #include "libavcodec/fdctdsp.h"
24 #include "fdct.h"
25
ff_fdctdsp_init_x86(FDCTDSPContext * c,AVCodecContext * avctx,unsigned high_bit_depth)26 av_cold void ff_fdctdsp_init_x86(FDCTDSPContext *c, AVCodecContext *avctx,
27 unsigned high_bit_depth)
28 {
29 int cpu_flags = av_get_cpu_flags();
30 const int dct_algo = avctx->dct_algo;
31
32 if (!high_bit_depth) {
33 if ((dct_algo == FF_DCT_AUTO || dct_algo == FF_DCT_MMX)) {
34 if (INLINE_MMX(cpu_flags))
35 c->fdct = ff_fdct_mmx;
36
37 if (INLINE_MMXEXT(cpu_flags))
38 c->fdct = ff_fdct_mmxext;
39
40 if (INLINE_SSE2(cpu_flags))
41 c->fdct = ff_fdct_sse2;
42 }
43 }
44 }
45