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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_NB, | |
42 | }; | |
43 | ||
44 | typedef struct { | |
45 | const AVClass *class; | |
46 | enum TInterlaceMode mode; ///< interlace mode selected | |
47 | AVRational preout_time_base; | |
48 | int flags; ///< flags affecting interlacing algorithm | |
49 | int frame; ///< number of the output frame | |
50 | int vsub; ///< chroma vertical subsampling | |
51 | AVFrame *cur; | |
52 | AVFrame *next; | |
53 | uint8_t *black_data[4]; ///< buffer used to fill padded lines | |
54 | int black_linesize[4]; | |
55 | void (*lowpass_line)(uint8_t *dstp, ptrdiff_t width, const uint8_t *srcp, | |
56 | const uint8_t *srcp_above, const uint8_t *srcp_below); | |
57 | } TInterlaceContext; | |
58 | ||
59 | void ff_tinterlace_init_x86(TInterlaceContext *interlace); | |
60 | ||
61 | #endif /* AVFILTER_TINTERLACE_H */ |