blob: 47e3d9ce81abf73f26b010f2398dfd7f94ee3fd9
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 | PROGRESSIVE, |
33 | UNDETERMINED, |
34 | } Type; |
35 | |
36 | typedef enum { |
37 | REPEAT_NONE, |
38 | REPEAT_TOP, |
39 | REPEAT_BOTTOM, |
40 | } RepeatedField; |
41 | |
42 | typedef struct { |
43 | const AVClass *class; |
44 | float interlace_threshold; |
45 | float progressive_threshold; |
46 | float repeat_threshold; |
47 | float half_life; |
48 | uint64_t decay_coefficient; |
49 | |
50 | Type last_type; |
51 | |
52 | uint64_t repeats[3]; |
53 | uint64_t prestat[4]; |
54 | uint64_t poststat[4]; |
55 | uint64_t total_repeats[3]; |
56 | uint64_t total_prestat[4]; |
57 | uint64_t total_poststat[4]; |
58 | |
59 | uint8_t history[HIST_SIZE]; |
60 | |
61 | AVFrame *cur; |
62 | AVFrame *next; |
63 | AVFrame *prev; |
64 | ff_idet_filter_func filter_line; |
65 | |
66 | int interlaced_flag_accuracy; |
67 | int analyze_interlaced_flag; |
68 | int analyze_interlaced_flag_done; |
69 | |
70 | const AVPixFmtDescriptor *csp; |
71 | int eof; |
72 | } IDETContext; |
73 | |
74 | void ff_idet_init_x86(IDETContext *idet, int for_16b); |
75 | |
76 | /* main fall-back for left-over */ |
77 | int ff_idet_filter_line_c(const uint8_t *a, const uint8_t *b, const uint8_t *c, int w); |
78 | int ff_idet_filter_line_c_16bit(const uint16_t *a, const uint16_t *b, const uint16_t *c, int w); |
79 | |
80 | #endif |
81 |