blob: 3b703e7b2141d9060c45e8708ef8412b162f9e44
1 | /* |
2 | * Copyright (c) 2011 Stefano Sabatini |
3 | * Copyright (c) 2010 Baptiste Coudurier |
4 | * Copyright (c) 2003 Michael Zucchi <notzed@ximian.com> |
5 | * |
6 | * This file is part of FFmpeg. |
7 | * |
8 | * FFmpeg is free software; you can redistribute it and/or modify |
9 | * it under the terms of the GNU General Public License as published by |
10 | * the Free Software Foundation; either version 2 of the License, or |
11 | * (at your option) any later version. |
12 | * |
13 | * FFmpeg is distributed in the hope that it will be useful, |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
16 | * GNU General Public License for more details. |
17 | * |
18 | * You should have received a copy of the GNU General Public License along |
19 | * with FFmpeg; if not, write to the Free Software Foundation, Inc., |
20 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
21 | */ |
22 | |
23 | /** |
24 | * @file |
25 | * temporal field interlace filter, ported from MPlayer/libmpcodecs |
26 | */ |
27 | #ifndef AVFILTER_TINTERLACE_H |
28 | #define AVFILTER_TINTERLACE_H |
29 | |
30 | #include "libavutil/opt.h" |
31 | #include "avfilter.h" |
32 | |
33 | enum TInterlaceMode { |
34 | MODE_MERGE = 0, |
35 | MODE_DROP_EVEN, |
36 | MODE_DROP_ODD, |
37 | MODE_PAD, |
38 | MODE_INTERLEAVE_TOP, |
39 | MODE_INTERLEAVE_BOTTOM, |
40 | MODE_INTERLACEX2, |
41 | MODE_MERGEX2, |
42 | MODE_NB, |
43 | }; |
44 | |
45 | typedef struct { |
46 | const AVClass *class; |
47 | int mode; ///< TInterlaceMode, interlace mode selected |
48 | AVRational preout_time_base; |
49 | int flags; ///< flags affecting interlacing algorithm |
50 | int frame; ///< number of the output frame |
51 | int vsub; ///< chroma vertical subsampling |
52 | AVFrame *cur; |
53 | AVFrame *next; |
54 | uint8_t *black_data[4]; ///< buffer used to fill padded lines |
55 | int black_linesize[4]; |
56 | void (*lowpass_line)(uint8_t *dstp, ptrdiff_t width, const uint8_t *srcp, |
57 | const uint8_t *srcp_above, const uint8_t *srcp_below); |
58 | } TInterlaceContext; |
59 | |
60 | void ff_tinterlace_init_x86(TInterlaceContext *interlace); |
61 | |
62 | #endif /* AVFILTER_TINTERLACE_H */ |
63 |