1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
|
/*
* Copyright (C) 2013 Reimar Döffinger <Reimar.Doeffinger@gmx.de>
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <stdio.h>
#include <string.h>
#include "libavutil/hash.h"
#define SRC_BUF_SIZE 64
#define DST_BUF_SIZE (AV_HASH_MAX_SIZE * 8)
int main(void)
{
struct AVHashContext *ctx = NULL;
int i, j, numhashes = 0;
static const uint8_t src[SRC_BUF_SIZE] = { 0 };
uint8_t dst[DST_BUF_SIZE];
while (av_hash_names(numhashes))
numhashes++;
for (i = 0; i < numhashes; i++) {
if (av_hash_alloc(&ctx, av_hash_names(i)) < 0)
return 1;
av_hash_init(ctx);
av_hash_update(ctx, src, SRC_BUF_SIZE);
memset(dst, 0, DST_BUF_SIZE);
av_hash_final_hex(ctx, dst, DST_BUF_SIZE);
printf("%s hex: %s\n", av_hash_get_name(ctx), dst);
av_hash_init(ctx);
av_hash_update(ctx, src, SRC_BUF_SIZE);
av_hash_final_bin(ctx, dst, DST_BUF_SIZE);
printf("%s bin: ", av_hash_get_name(ctx));
for (j = 0; j < av_hash_get_size(ctx); j++) {
printf("%#x ", dst[j]);
}
printf("\n");
av_hash_init(ctx);
av_hash_update(ctx, src, SRC_BUF_SIZE);
av_hash_final_b64(ctx, dst, DST_BUF_SIZE);
printf("%s b64: %s\n", av_hash_get_name(ctx), dst);
av_hash_freep(&ctx);
}
return 0;
}
|
