int
qos_start() {
if(env == NULL)
return -1;
if(n_qrec <= 0)
return 0;
gettimeofday(&qos_tv, NULL);
qos_schedule();
return 0;
}
void qos_start(void){
// qos_port_init() do below:
// 1. init hardware.
// 2. enable timer tick isr.
if( !qos_port_init() ){
qos_verify( false );
return;
}
for(;;){
qos_schedule();
}
}
static void
qos_report(void *clientData) {
int i;
struct timeval now;
long long elapsed;
//
gettimeofday(&now, NULL);
elapsed = tvdiff_us(&now, &qos_tv);
for(i = 0; i < n_qrec; i++) {
RTPReceptionStatsDB::Iterator statsIter(qrec[i].rtpsrc->receptionStatsDB());
// Assume that there's only one SSRC source (usually the case):
RTPReceptionStats* stats = statsIter.next(True);
unsigned pkts_expected, dExp;
unsigned pkts_received, dRcvd;
double KB_received, dKB;
//
if(stats == NULL)
continue;
pkts_expected = stats->totNumPacketsExpected();
pkts_received = stats->totNumPacketsReceived();
KB_received = stats->totNumKBytesReceived();
// delta ...
dExp = pkts_expected - qrec[i].pkts_expected;
dRcvd = pkts_received - qrec[i].pkts_received;
dKB = KB_received - qrec[i].KB_received;
// show info
ga_error("%s-report: %.0fKB rcvd; pkt-loss=%d/%d,%.2f%%; bitrate=%.0fKbps; jitter=%u (freq=%uHz)\n",
//now.tv_sec, now.tv_usec,
qrec[i].prefix, dKB, dExp-dRcvd, dExp, 100.0*(dExp-dRcvd)/dExp,
8000000.0*dKB/elapsed,
stats->jitter(),
qrec[i].rtpsrc->timestampFrequency());
//
qrec[i].pkts_expected = pkts_expected;
qrec[i].pkts_received = pkts_received;
qrec[i].KB_received = KB_received;
}
// schedule next qos
qos_tv = now;
qos_schedule();
return;
}
