libheif/exif.h (7 lines of code) (raw):
/*
* HEIF codec.
* Copyright (c) 2022 Dirk Farin <dirk.farin@gmail.com>
*
* This file is part of libheif.
*
* libheif is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* libheif is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with libheif. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef LIBHEIF_EXIF_H
#define LIBHEIF_EXIF_H
#include <vector>
#include <cinttypes>
int read_exif_orientation_tag(const uint8_t* exif, uint32_t size);
void modify_exif_orientation_tag_if_it_exists(uint8_t* exifData, uint32_t size, uint16_t orientation);
#endif //LIBHEIF_EXIF_H