FFmpeg
 All Data Structures Namespaces Files Functions Variables Typedefs Enumerations Enumerator Macros Groups Pages
md5.h
Go to the documentation of this file.
1 /*
2  * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
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 /**
22  * @file
23  * @ingroup lavu_md5
24  * Public header for MD5 hash function implementation.
25  */
26 
27 #ifndef AVUTIL_MD5_H
28 #define AVUTIL_MD5_H
29 
30 #include <stdint.h>
31 
32 #include "attributes.h"
33 #include "version.h"
34 
35 /**
36  * @defgroup lavu_md5 MD5
37  * @ingroup lavu_hash
38  * MD5 hash function implementation.
39  *
40  * @{
41  */
42 
43 extern const int av_md5_size;
44 
45 struct AVMD5;
46 
47 /**
48  * Allocate an AVMD5 context.
49  */
50 struct AVMD5 *av_md5_alloc(void);
51 
52 /**
53  * Initialize MD5 hashing.
54  *
55  * @param ctx pointer to the function context (of size av_md5_size)
56  */
57 void av_md5_init(struct AVMD5 *ctx);
58 
59 /**
60  * Update hash value.
61  *
62  * @param ctx hash function context
63  * @param src input data to update hash with
64  * @param len input data length
65  */
66 void av_md5_update(struct AVMD5 *ctx, const uint8_t *src, int len);
67 
68 /**
69  * Finish hashing and output digest value.
70  *
71  * @param ctx hash function context
72  * @param dst buffer where output digest value is stored
73  */
74 void av_md5_final(struct AVMD5 *ctx, uint8_t *dst);
75 
76 /**
77  * Hash an array of data.
78  *
79  * @param dst The output buffer to write the digest into
80  * @param src The data to hash
81  * @param len The length of the data, in bytes
82  */
83 void av_md5_sum(uint8_t *dst, const uint8_t *src, const int len);
84 
85 /**
86  * @}
87  */
88 
89 #endif /* AVUTIL_MD5_H */
#define src
Definition: vp8dsp.c:254
void av_md5_update(struct AVMD5 *ctx, const uint8_t *src, int len)
Update hash value.
Definition: md5.c:157
Macro definitions for various function/variable attributes.
struct AVMD5 * av_md5_alloc(void)
Allocate an AVMD5 context.
Definition: md5.c:48
uint8_t
const int av_md5_size
Definition: md5.c:46
void av_md5_sum(uint8_t *dst, const uint8_t *src, const int len)
Hash an array of data.
Definition: md5.c:207
Definition: md5.c:40
Libavutil version macros.
AVFormatContext * ctx
Definition: movenc.c:48
void av_md5_init(struct AVMD5 *ctx)
Initialize MD5 hashing.
Definition: md5.c:147
void av_md5_final(struct AVMD5 *ctx, uint8_t *dst)
Finish hashing and output digest value.
Definition: md5.c:192
int len