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vf_yadif_init.c
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1 /*
2  * Copyright (C) 2006 Michael Niedermayer <michaelni@gmx.at>
3  *
4  * This file is part of FFmpeg.
5  *
6  * FFmpeg is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License as published by
8  * the Free Software Foundation; either version 2 of the License, or
9  * (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
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License along
17  * with FFmpeg; if not, write to the Free Software Foundation, Inc.,
18  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
19  */
20 
21 #include "libavutil/attributes.h"
22 #include "libavutil/cpu.h"
23 #include "libavutil/mem.h"
24 #include "libavutil/x86/asm.h"
25 #include "libavutil/x86/cpu.h"
27 #include "libavfilter/yadif.h"
28 
29 void ff_yadif_filter_line_mmxext(void *dst, void *prev, void *cur,
30  void *next, int w, int prefs,
31  int mrefs, int parity, int mode);
32 void ff_yadif_filter_line_sse2(void *dst, void *prev, void *cur,
33  void *next, int w, int prefs,
34  int mrefs, int parity, int mode);
35 void ff_yadif_filter_line_ssse3(void *dst, void *prev, void *cur,
36  void *next, int w, int prefs,
37  int mrefs, int parity, int mode);
38 
40 {
42 
43 #if HAVE_YASM
44 #if ARCH_X86_32
45  if (EXTERNAL_MMXEXT(cpu_flags)) {
47  yadif->req_align = 8;
48  }
49 #endif /* ARCH_X86_32 */
50  if (EXTERNAL_SSE2(cpu_flags)) {
52  yadif->req_align = 16;
53  }
54  if (EXTERNAL_SSSE3(cpu_flags)) {
56  yadif->req_align = 16;
57  }
58 #endif /* HAVE_YASM */
59 }