blob: eb73154c14b458d7ddebff40859650005c4ac631
1 | /* |
2 | * Copyright (c) 2005 Robert Edele <yartrebo@earthlink.net> |
3 | * |
4 | * This file is part of FFmpeg. |
5 | * |
6 | * FFmpeg is free software; you can redistribute it and/or |
7 | * modify it under the terms of the GNU Lesser General Public |
8 | * License as published by the Free Software Foundation; either |
9 | * version 2.1 of the License, or (at your option) any later version. |
10 | * |
11 | * FFmpeg is distributed in the hope that it will be useful, |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
14 | * Lesser General Public License for more details. |
15 | * |
16 | * You should have received a copy of the GNU Lesser General Public |
17 | * License along with FFmpeg; if not, write to the Free Software |
18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
19 | */ |
20 | |
21 | #ifndef AVFILTER_BBOX_H |
22 | #define AVFILTER_BBOX_H |
23 | |
24 | #include <stdint.h> |
25 | |
26 | typedef struct { |
27 | int x1, x2, y1, y2; |
28 | } FFBoundingBox; |
29 | |
30 | /** |
31 | * Calculate the smallest rectangle that will encompass the |
32 | * region with values > min_val. |
33 | * |
34 | * @param bbox bounding box structure which is updated with the found values. |
35 | * If no pixels could be found with value > min_val, the |
36 | * structure is not modified. |
37 | * @return 1 in case at least one pixel with value > min_val was found, |
38 | * 0 otherwise |
39 | */ |
40 | int ff_calculate_bounding_box(FFBoundingBox *bbox, |
41 | const uint8_t *data, int linesize, |
42 | int w, int h, int min_val); |
43 | |
44 | #endif /* AVFILTER_BBOX_H */ |
45 |