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 FFBoundingBox { 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, int depth); 43 44 #endif /* AVFILTER_BBOX_H */ 45