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45 lines
1.5 KiB
C
45 lines
1.5 KiB
C
/*
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* Copyright (c) 2005 Robert Edele <yartrebo@earthlink.net>
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef AVFILTER_BBOX_H
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#define AVFILTER_BBOX_H
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#include <stdint.h>
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typedef struct FFBoundingBox {
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int x1, x2, y1, y2;
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} FFBoundingBox;
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/**
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* Calculate the smallest rectangle that will encompass the
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* region with values > min_val.
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*
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* @param bbox bounding box structure which is updated with the found values.
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* If no pixels could be found with value > min_val, the
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* structure is not modified.
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* @return 1 in case at least one pixel with value > min_val was found,
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* 0 otherwise
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*/
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int ff_calculate_bounding_box(FFBoundingBox *bbox,
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const uint8_t *data, int linesize,
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int w, int h, int min_val);
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#endif /* AVFILTER_BBOX_H */
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