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libavutil/adler32.h
63 строки
2 KB
Andreas Rheinhardt
avutil: Switch crypto APIs to size_t
27 апр 2021, 16:43
27 апр 2021, 16:43
a240097
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/* * copyright (c) 2006 Mans Rullgard * * This file is part of FFmpeg. * * FFmpeg 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 2.1 of the License, or (at your option) any later version. * * FFmpeg 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 FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /** * @file * @ingroup lavu_adler32 * Public header for Adler-32 hash function implementation. */ #ifndef AVUTIL_ADLER32_H #define AVUTIL_ADLER32_H #include <stddef.h> #include <stdint.h> #include "attributes.h" /** * @defgroup lavu_adler32 Adler-32 * @ingroup lavu_hash * Adler-32 hash function implementation. * * @{ */ typedef uint32_t AVAdler; /** * Calculate the Adler32 checksum of a buffer. * * Passing the return value to a subsequent av_adler32_update() call * allows the checksum of multiple buffers to be calculated as though * they were concatenated. * * @param adler initial checksum value * @param buf pointer to input buffer * @param len size of input buffer * @return updated checksum */ AVAdler av_adler32_update(AVAdler adler, const uint8_t *buf, size_t len) av_pure; /** * @} */ #endif /* AVUTIL_ADLER32_H */