0,0 → 1,52 |
/* |
* 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 |
*/ |
|
#ifndef AVUTIL_ADLER32_H |
#define AVUTIL_ADLER32_H |
|
#include <stdint.h> |
#include "attributes.h" |
|
/** |
* @defgroup lavu_adler32 Adler32 |
* @ingroup lavu_crypto |
* @{ |
*/ |
|
/** |
* 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 |
*/ |
unsigned long av_adler32_update(unsigned long adler, const uint8_t *buf, |
unsigned int len) av_pure; |
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/** |
* @} |
*/ |
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#endif /* AVUTIL_ADLER32_H */ |