1 /*
2 * Copyright (c) 2015 Paul B Mahol
3 *
4 * This file is part of FFmpeg.
5 *
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21 #include "libavcodec/takdsp.h"
22 #include "libavutil/x86/cpu.h"
23 #include "config.h"
24
25 void ff_tak_decorrelate_ls_sse2(int32_t *p1, int32_t *p2, int length);
26 void ff_tak_decorrelate_sr_sse2(int32_t *p1, int32_t *p2, int length);
27 void ff_tak_decorrelate_sm_sse2(int32_t *p1, int32_t *p2, int length);
28 void ff_tak_decorrelate_sf_sse4(int32_t *p1, int32_t *p2, int length, int dshift, int dfactor);
29
ff_takdsp_init_x86(TAKDSPContext * c)30 av_cold void ff_takdsp_init_x86(TAKDSPContext *c)
31 {
32 #if HAVE_X86ASM
33 int cpu_flags = av_get_cpu_flags();
34
35 if (EXTERNAL_SSE2(cpu_flags)) {
36 c->decorrelate_ls = ff_tak_decorrelate_ls_sse2;
37 c->decorrelate_sr = ff_tak_decorrelate_sr_sse2;
38 c->decorrelate_sm = ff_tak_decorrelate_sm_sse2;
39 }
40
41 if (EXTERNAL_SSE4(cpu_flags)) {
42 c->decorrelate_sf = ff_tak_decorrelate_sf_sse4;
43 }
44 #endif
45 }
46