FFmpeg
libavutil
base64.h
Go to the documentation of this file.
1
/*
2
* Copyright (c) 2006 Ryan Martell. (rdm4@martellventures.com)
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_BASE64_H
22
#define AVUTIL_BASE64_H
23
24
#include <stdint.h>
25
26
/**
27
* @defgroup lavu_base64 Base64
28
* @ingroup lavu_crypto
29
* @{
30
*/
31
32
/**
33
* Decode a base64-encoded string.
34
*
35
* @param out buffer for decoded data
36
* @param in null-terminated input string
37
* @param out_size size in bytes of the out buffer, must be at
38
* least 3/4 of the length of in, that is AV_BASE64_DECODE_SIZE(strlen(in))
39
* @return number of bytes written, or a negative value in case of
40
* invalid input
41
*/
42
int
av_base64_decode
(uint8_t *
out
,
const
char
*in,
int
out_size
);
43
44
/**
45
* Calculate the output size in bytes needed to decode a base64 string
46
* with length x to a data buffer.
47
*/
48
#define AV_BASE64_DECODE_SIZE(x) ((x) * 3LL / 4)
49
50
/**
51
* Encode data to base64 and null-terminate.
52
*
53
* @param out buffer for encoded data
54
* @param out_size size in bytes of the out buffer (including the
55
* null terminator), must be at least AV_BASE64_SIZE(in_size)
56
* @param in input buffer containing the data to encode
57
* @param in_size size in bytes of the in buffer
58
* @return out or NULL in case of error
59
*/
60
char
*
av_base64_encode
(
char
*
out
,
int
out_size
,
const
uint8_t *in,
int
in_size);
61
62
/**
63
* Calculate the output size needed to base64-encode x bytes to a
64
* null-terminated string.
65
*/
66
#define AV_BASE64_SIZE(x) (((x)+2) / 3 * 4 + 1)
67
68
/**
69
* @}
70
*/
71
72
#endif
/* AVUTIL_BASE64_H */
out
FILE * out
Definition:
movenc.c:55
out_size
int out_size
Definition:
movenc.c:56
av_base64_decode
int av_base64_decode(uint8_t *out, const char *in, int out_size)
Decode a base64-encoded string.
Definition:
base64.c:81
av_base64_encode
char * av_base64_encode(char *out, int out_size, const uint8_t *in, int in_size)
Encode data to base64 and null-terminate.
Definition:
base64.c:147
Generated on Thu Dec 12 2024 19:22:47 for FFmpeg by
1.8.17