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2ba45a60 DM |
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 |