ffmpeg/libavutil/tests/adler32.c

52 lines
1.5 KiB
C

/*
* This file is part of Libav.
*
* Libav 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.
*
* Libav 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 Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <string.h>
#include "libavutil/log.h"
#include "libavutil/timer.h"
#include "libavutil/adler32.h"
#define LEN 7001
static volatile int checksum;
int main(int argc, char **argv)
{
int i;
char data[LEN];
av_log_set_level(AV_LOG_DEBUG);
for (i = 0; i < LEN; i++)
data[i] = ((i * i) >> 3) + 123 * i;
if (argc > 1 && !strcmp(argv[1], "-t")) {
for (i = 0; i < 1000; i++) {
START_TIMER;
checksum = av_adler32_update(1, data, LEN);
STOP_TIMER("adler");
}
} else {
checksum = av_adler32_update(1, data, LEN);
}
av_log(NULL, AV_LOG_DEBUG, "%X (expected 50E6E508)\n", checksum);
return checksum == 0x50e6e508 ? 0 : 1;
}