FFmpeg
3.1.2
Main Page
Related Pages
Modules
Data Structures
Files
Examples
File List
Globals
libavutil
adler32.h
Go to the documentation of this file.
1
/*
2
* copyright (c) 2006 Mans Rullgard
3
*
4
* This file is part of FFmpeg.
5
*
6
* FFmpeg is free software; you can redistribute it and/or
7
* modify it under the terms of the GNU Lesser General Public
8
* License as published by the Free Software Foundation; either
9
* version 2.1 of the License, or (at your option) any later version.
10
*
11
* FFmpeg is distributed in the hope that it will be useful,
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
17
* License along with FFmpeg; if not, write to the Free Software
18
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19
*/
20
21
#ifndef AVUTIL_ADLER32_H
22
#define AVUTIL_ADLER32_H
23
24
#include <stdint.h>
25
#include "
attributes.h
"
26
27
/**
28
* @file
29
* Public header for libavutil Adler32 hasher
30
*
31
* @defgroup lavu_adler32 Adler32
32
* @ingroup lavu_crypto
33
* @{
34
*/
35
36
/**
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
*/
48
unsigned
long
av_adler32_update
(
unsigned
long
adler,
const
uint8_t *buf,
49
unsigned
int
len)
av_pure
;
50
51
/**
52
* @}
53
*/
54
55
#endif
/* AVUTIL_ADLER32_H */
av_pure
#define av_pure
Definition:
attributes.h:70
attributes.h
Macro definitions for various function/variable attributes.
av_adler32_update
unsigned long av_adler32_update(unsigned long adler, const uint8_t *buf, unsigned int len) av_pure
Calculate the Adler32 checksum of a buffer.
Generated by
1.8.11