aarch64: Add assembly support for -fsanitize=hwaddress tagged globals.
[libav.git] / libavutil / adler32.h
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1/*
2 * copyright (c) 2006 Mans Rullgard
3 *
2912e87a 4 * This file is part of Libav.
b78e7197 5 *
2912e87a 6 * Libav is free software; you can redistribute it and/or
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7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
b78e7197 9 * version 2.1 of the License, or (at your option) any later version.
04d7f601 10 *
2912e87a 11 * Libav is distributed in the hope that it will be useful,
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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
2912e87a 17 * License along with Libav; if not, write to the Free Software
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18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
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21#ifndef AVUTIL_ADLER32_H
22#define AVUTIL_ADLER32_H
b9a73d8d 23
99545457 24#include <stdint.h>
2ed6f399 25#include "attributes.h"
99545457 26
82012619 27/**
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28 * @file
29 * Public header for libavutil Adler32 hasher
30 *
31 * @defgroup lavu_adler32 Adler32
757cd8d8 32 * @ingroup lavu_crypto
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33 * @{
34 */
35
36/**
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37 * Calculate the Adler32 checksum of a buffer.
38 *
39 * Passing the return value to a subsequent av_adler32_update() call
40 * allows the checksum of multiple buffers to be calculated as though
41 * they were concatenated.
42 *
43 * @param adler initial checksum value
44 * @param buf pointer to input buffer
45 * @param len size of input buffer
46 * @return updated checksum
47 */
b9a73d8d 48unsigned long av_adler32_update(unsigned long adler, const uint8_t *buf,
85074d3c 49 unsigned int len) av_pure;
b9a73d8d 50
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51/**
52 * @}
53 */
54
98790382 55#endif /* AVUTIL_ADLER32_H */