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/* test_stc.c - Test for DMX_GET_STC.
* usage: DEMUX=/dev/dvb/adapterX/demuxX test_stc
*
* Copyright (C) 2003 convergence GmbH
* Johannes Stezenbach <js@convergence.de>
*
* This program 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.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <sys/ioctl.h>
#include <errno.h>
#include <linux/dvb/dmx.h>
void usage(void)
{
fprintf(stderr, "usage: test_stc\n");
fprintf(stderr, " The default demux device used can be changed\n");
fprintf(stderr, " using the DEMUX environment variable;\n");
fprintf(stderr, "\n");
exit(1);
}
int main(int argc, char *argv[])
{
int dmxfd;
char * dmxdev = "/dev/dvb/adapter0/demux0";
struct dmx_stc stc;
if (argc != 1 || argv[1])
usage();
if (getenv("DEMUX"))
dmxdev = getenv("DEMUX");
fprintf(stderr, "test_stc: using '%s'\n", dmxdev);
if ((dmxfd = open(dmxdev, O_RDWR)) < 0) {
perror("open");
return 1;
}
stc.num = 0;
if (ioctl(dmxfd, DMX_GET_STC, &stc) == -1) {
perror("DMX_GET_STC");
return 1;
}
printf("STC = %llu (%llu / %u)\n", stc.stc / stc.base, stc.stc, stc.base);
close(dmxfd);
return 0;
}
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