FFmpeg
md5.h
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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 <stddef.h>
31 #include <stdint.h>
32 
33 #include "attributes.h"
34 #include "version.h"
35 
36 /**
37  * @defgroup lavu_md5 MD5
38  * @ingroup lavu_hash
39  * MD5 hash function implementation.
40  *
41  * @{
42  */
43 
44 extern const int av_md5_size;
45 
46 struct AVMD5;
47 
48 /**
49  * Allocate an AVMD5 context.
50  */
51 struct AVMD5 *av_md5_alloc(void);
52 
53 /**
54  * Initialize MD5 hashing.
55  *
56  * @param ctx pointer to the function context (of size av_md5_size)
57  */
58 void av_md5_init(struct AVMD5 *ctx);
59 
60 /**
61  * Update hash value.
62  *
63  * @param ctx hash function context
64  * @param src input data to update hash with
65  * @param len input data length
66  */
67 #if FF_API_CRYPTO_SIZE_T
68 void av_md5_update(struct AVMD5 *ctx, const uint8_t *src, int len);
69 #else
70 void av_md5_update(struct AVMD5 *ctx, const uint8_t *src, size_t len);
71 #endif
72 
73 /**
74  * Finish hashing and output digest value.
75  *
76  * @param ctx hash function context
77  * @param dst buffer where output digest value is stored
78  */
79 void av_md5_final(struct AVMD5 *ctx, uint8_t *dst);
80 
81 /**
82  * Hash an array of data.
83  *
84  * @param dst The output buffer to write the digest into
85  * @param src The data to hash
86  * @param len The length of the data, in bytes
87  */
88 #if FF_API_CRYPTO_SIZE_T
89 void av_md5_sum(uint8_t *dst, const uint8_t *src, const int len);
90 #else
91 void av_md5_sum(uint8_t *dst, const uint8_t *src, size_t len);
92 #endif
93 
94 /**
95  * @}
96  */
97 
98 #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:154
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:208
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:143
void av_md5_final(struct AVMD5 *ctx, uint8_t *dst)
Finish hashing and output digest value.
Definition: md5.c:192
int len