mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-23 12:43:46 +02:00
tools: Add adler32 checksum tool
This is about 6 times faster than md5sum on linux Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
parent
d1cb559a6a
commit
3d66ce17b7
@ -148,6 +148,6 @@ TESTPROGS = adler32 \
|
||||
|
||||
TESTPROGS-$(HAVE_LZO1X_999_COMPRESS) += lzo
|
||||
|
||||
TOOLS = ffeval ffescape
|
||||
TOOLS = ffadler ffeval ffescape
|
||||
|
||||
$(SUBDIR)lzo-test$(EXESUF): ELIBS = -llzo2
|
||||
|
73
tools/ffadler.c
Normal file
73
tools/ffadler.c
Normal file
@ -0,0 +1,73 @@
|
||||
/*
|
||||
* Copyright (c) 2002 Fabrice Bellard
|
||||
* Copyright (c) 2013 Michael Niedermayer
|
||||
*
|
||||
* 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 "config.h"
|
||||
#include "libavutil/adler32.h"
|
||||
|
||||
#include <errno.h>
|
||||
#include <fcntl.h>
|
||||
#include <stdio.h>
|
||||
#include <sys/stat.h>
|
||||
|
||||
#if HAVE_IO_H
|
||||
#include <io.h>
|
||||
#endif
|
||||
#if HAVE_UNISTD_H
|
||||
#include <unistd.h>
|
||||
#endif
|
||||
|
||||
#define SIZE 65536
|
||||
|
||||
int main(int argc, char **argv)
|
||||
{
|
||||
uint8_t buffer[SIZE];
|
||||
uint32_t checksum = 1;
|
||||
int fd;
|
||||
int ret = 0;
|
||||
|
||||
if (argc > 1) fd = open(argv[1], O_RDONLY);
|
||||
else fd = 0;
|
||||
if (fd == -1) {
|
||||
printf("A32=OPEN-FAILED-%d\n", errno);
|
||||
ret = 1;
|
||||
goto end;
|
||||
}
|
||||
|
||||
for (;;) {
|
||||
ssize_t size = read(fd, buffer, SIZE);
|
||||
if (size < 0) {
|
||||
printf("A32=0x%08x+READ-FAILED-%d\n", checksum, errno);
|
||||
ret = 2;
|
||||
goto end;
|
||||
} else if(!size)
|
||||
break;
|
||||
checksum = av_adler32_update(checksum, buffer, size);
|
||||
}
|
||||
close(fd);
|
||||
|
||||
printf("A32=0x%08x", checksum);
|
||||
end:
|
||||
if (argc > 1)
|
||||
printf(" *%s", argv[1]);
|
||||
printf("\n");
|
||||
|
||||
return ret;
|
||||
}
|
Loading…
Reference in New Issue
Block a user