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
|
/*
* 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 <stdint.h>
#include <stdio.h>
#include "libavutil/crc.h"
int main(void)
{
uint8_t buf[1999];
int i;
static const unsigned p[7][3] = {
{ AV_CRC_32_IEEE_LE, 0xEDB88320, 0x3D5CDD04 },
{ AV_CRC_32_IEEE , 0x04C11DB7, 0xC0F5BAE0 },
{ AV_CRC_24_IEEE , 0x864CFB , 0xB704CE },
{ AV_CRC_16_ANSI_LE, 0xA001 , 0xBFD8 },
{ AV_CRC_16_ANSI , 0x8005 , 0x1FBB },
{ AV_CRC_8_ATM , 0x07 , 0xE3 },
{ AV_CRC_8_EBU , 0x1D , 0xD6 },
};
const AVCRC *ctx;
for (i = 0; i < sizeof(buf); i++)
buf[i] = i + i * i;
for (i = 0; i < 7; i++) {
ctx = av_crc_get_table(p[i][0]);
printf("crc %08X = %X\n", p[i][1], av_crc(ctx, 0, buf, sizeof(buf)));
}
return 0;
}
|
