| 1 | /* |
| 2 | * This file is part of FFmpeg. |
| 3 | * |
| 4 | * FFmpeg is free software; you can redistribute it and/or |
| 5 | * modify it under the terms of the GNU Lesser General Public |
| 6 | * License as published by the Free Software Foundation; either |
| 7 | * version 2.1 of the License, or (at your option) any later version. |
| 8 | * |
| 9 | * FFmpeg is distributed in the hope that it will be useful, |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 12 | * Lesser General Public License for more details. |
| 13 | * |
| 14 | * You should have received a copy of the GNU Lesser General Public |
| 15 | * License along with FFmpeg; if not, write to the Free Software |
| 16 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 17 | */ |
| 18 | |
| 19 | #ifndef AVFILTER_IDET_H |
| 20 | #define AVFILTER_IDET_H |
| 21 | |
| 22 | #include "libavutil/pixdesc.h" |
| 23 | #include "avfilter.h" |
| 24 | |
| 25 | #define HIST_SIZE 4 |
| 26 | |
| 27 | typedef int (*ff_idet_filter_func)(const uint8_t *a, const uint8_t *b, const uint8_t *c, int w); |
| 28 | |
| 29 | typedef enum { |
| 30 | TFF, |
| 31 | BFF, |
| 32 | PROGRSSIVE, |
| 33 | UNDETERMINED, |
| 34 | } Type; |
| 35 | |
| 36 | typedef struct { |
| 37 | const AVClass *class; |
| 38 | float interlace_threshold; |
| 39 | float progressive_threshold; |
| 40 | |
| 41 | Type last_type; |
| 42 | int prestat[4]; |
| 43 | int poststat[4]; |
| 44 | |
| 45 | uint8_t history[HIST_SIZE]; |
| 46 | |
| 47 | AVFrame *cur; |
| 48 | AVFrame *next; |
| 49 | AVFrame *prev; |
| 50 | ff_idet_filter_func filter_line; |
| 51 | |
| 52 | const AVPixFmtDescriptor *csp; |
| 53 | } IDETContext; |
| 54 | |
| 55 | void ff_idet_init_x86(IDETContext *idet, int for_16b); |
| 56 | |
| 57 | /* main fall-back for left-over */ |
| 58 | int ff_idet_filter_line_c(const uint8_t *a, const uint8_t *b, const uint8_t *c, int w); |
| 59 | int ff_idet_filter_line_c_16bit(const uint16_t *a, const uint16_t *b, const uint16_t *c, int w); |
| 60 | |
| 61 | #endif |