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/* This file is released into the public domain by its authors */
#include <stdio.h>
#include <stdlib.h>
#include <sys/ioctl.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <time.h>
#include <sys/poll.h>
#include <sys/time.h>
#include <string.h>
#include <limits.h>
#include <libdvbapi/dvbdemux.h>
#define BSIZE 188
static int pidt[0x2001];
static void usage(FILE *output)
{
fprintf(output,
"Usage: dvbtraffic [OPTION]...\n"
"Options:\n"
" -a N use dvb adapter N\n"
" -d N use demux N\n"
" -h display this help\n");
}
int main(int argc, char **argv)
{
struct timeval startt;
int adapter = 0, demux = 0;
char *search = NULL;
int fd, ffd, packets = 0;
int opt;
while ((opt = getopt(argc, argv, "a:d:hs:")) != -1) {
switch (opt) {
case 'a':
adapter = atoi(optarg);
break;
case 'd':
demux = atoi(optarg);
break;
case 'h':
usage(stdout);
exit(0);
case 's':
search = strdup(optarg);
break;
default:
usage(stderr);
exit(1);
}
}
// open the DVR device
fd = dvbdemux_open_dvr(adapter, demux, 1, 0);
if (fd < 0) {
fprintf(stderr, "dvbtraffic: Could not open dvr device: %m\n");
exit(1);
}
dvbdemux_set_buffer(fd, 1024 * 1024);
ffd = dvbdemux_open_demux(adapter, demux, 0);
if (ffd < 0) {
fprintf(stderr, "dvbtraffic: Could not open demux device: %m\n");
exit(1);
}
if (dvbdemux_set_pid_filter(ffd, -1, DVBDEMUX_INPUT_FRONTEND, DVBDEMUX_OUTPUT_DVR, 1)) {
perror("dvbdemux_set_pid_filter");
return -1;
}
gettimeofday(&startt, 0);
while (1) {
unsigned char buffer[BSIZE];
int pid, ok;
ssize_t r;
if ((r = read(fd, buffer, BSIZE)) <= 0) {
perror("read");
break;
}
if (r != BSIZE) {
fprintf(stderr, "dvbtraffic: only read %zd bytes\n", r);
break;
}
if (buffer[0] != 0x47) {
continue;
printf("desync (%x)\n", buffer[0]);
while (buffer[0] != 0x47)
read(fd, buffer, 1);
continue;
}
ok = 1;
pid = ((((unsigned) buffer[1]) << 8) |
((unsigned) buffer[2])) & 0x1FFF;
if (search) {
int i, sl = strlen(search);
ok = 0;
if (pid != 0x1fff) {
for (i = 0; i < (188 - sl); ++i) {
if (!memcmp(buffer + i, search, sl))
ok = 1;
}
}
}
if (ok) {
pidt[pid]++;
pidt[0x2000]++;
}
packets++;
if (!(packets & 0xFF)) {
struct timeval now;
int diff;
gettimeofday(&now, 0);
diff =
(now.tv_sec - startt.tv_sec) * 1000 +
(now.tv_usec - startt.tv_usec) / 1000;
if (diff > 1000) {
int _pid = 0;
for (_pid = 0; _pid < 0x2001; _pid++) {
if (pidt[_pid]) {
printf("%04x %5d p/s %5d kb/s %5d kbit\n",
_pid,
pidt[_pid] * 1000 / diff,
pidt[_pid] * 1000 / diff * 188 / 1024,
pidt[_pid] * 8 * 1000 / diff * 188 / 1000);
}
pidt[_pid] = 0;
}
printf("-PID--FREQ-----BANDWIDTH-BANDWIDTH-\n");
startt = now;
}
}
}
close(ffd);
close(fd);
return 0;
}
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