| 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 */ |