static void * outboud_simulator_thread(void *ctx){
RtpSession *session=(RtpSession*)ctx;
OrtpNetworkSimulatorCtx *sim=session->net_sim_ctx;
ortpTimeSpec sleep_until;
set_high_prio();
while(sim->thread_started){
sleep_until.tv_sec=0;
sleep_until.tv_nsec=0;
rtp_session_schedule_outbound_network_simulator(session, &sleep_until);
if (sleep_until.tv_sec!=0) ortp_sleep_until(&sleep_until);
else ortp_sleep_ms(1);
}
return NULL;
}
static int wait_next_tick(void *data, uint64_t virt_ticker_time){
MSTicker *s=(MSTicker*)data;
uint64_t realtime;
int64_t diff;
int late;
while(1){
realtime=s->get_cur_time_ptr(s->get_cur_time_data)-s->orig;
diff=s->time-realtime;
if (diff>0){
/* sleep until next tick */
ortp_sleep_ms((int)diff);
}else{
late=(int)-diff;
break; /*exit the while loop */
}
}
return late;
}
int main(int argc, char *argv[])
{
RtpSession *session;
unsigned char buffer[160];
int i;
FILE *infile;
char *ssrc;
uint32_t user_ts=0;
int clockslide=0;
int jitter=0;
if (argc<4){
printf("%s", help);
return -1;
}
for(i=4;i<argc;i++){
if (strcmp(argv[i],"--with-clockslide")==0){
i++;
if (i>=argc) {
printf("%s", help);
return -1;
}
clockslide=atoi(argv[i]);
ortp_message("Using clockslide of %i milisecond every 50 packets.",clockslide);
}else if (strcmp(argv[i],"--with-jitter")==0){
ortp_message("Jitter will be added to outgoing stream.");
i++;
if (i>=argc) {
printf("%s", help);
return -1;
}
jitter=atoi(argv[i]);
}
}
ortp_init();
ortp_scheduler_init();
ortp_set_log_level_mask(NULL, ORTP_MESSAGE|ORTP_WARNING|ORTP_ERROR);
session=rtp_session_new(RTP_SESSION_SENDONLY);
rtp_session_set_scheduling_mode(session,1);
rtp_session_set_blocking_mode(session,1);
rtp_session_set_connected_mode(session,TRUE);
rtp_session_set_remote_addr(session,argv[2],atoi(argv[3]));
rtp_session_set_payload_type(session,0);
ssrc=getenv("SSRC");
if (ssrc!=NULL) {
printf("using SSRC=%i.\n",atoi(ssrc));
rtp_session_set_ssrc(session,atoi(ssrc));
}
#ifndef _WIN32
infile=fopen(argv[1],"r");
#else
infile=fopen(argv[1],"rb");
#endif
if (infile==NULL) {
perror("Cannot open file");
return -1;
}
signal(SIGINT,stophandler);
while( ((i=fread(buffer,1,160,infile))>0) && (runcond) )
{
rtp_session_send_with_ts(session,buffer,i,user_ts);
user_ts+=160;
if (clockslide!=0 && user_ts%(160*50)==0){
ortp_message("Clock sliding of %i miliseconds now",clockslide);
rtp_session_make_time_distorsion(session,clockslide);
}
/*this will simulate a burst of late packets */
if (jitter && (user_ts%(8000)==0)) {
ortp_message("Simulating late packets now (%i milliseconds)",jitter);
ortp_sleep_ms(jitter);
}
}
fclose(infile);
rtp_session_destroy(session);
ortp_exit();
ortp_global_stats_display();
return 0;
}
