static void sender_process(MSFilter * f)
{
SenderData *d = (SenderData *) f->data;
RtpSession *s = d->session;
mblk_t *im;
uint32_t timestamp;
if (s == NULL){
ms_queue_flush(f->inputs[0]);
return;
}
if (d->relay_session_id_size>0 &&
( (f->ticker->time-d->last_rsi_time)>5000 || d->last_rsi_time==0) ) {
ms_message("relay session id sent in RTCP APP");
rtp_session_send_rtcp_APP(s,0,"RSID",(const uint8_t *)d->relay_session_id,d->relay_session_id_size);
d->last_rsi_time=f->ticker->time;
}
while ((im = ms_queue_get(f->inputs[0])) != NULL) {
mblk_t *header;
timestamp = get_cur_timestamp(f, mblk_get_timestamp_info(im));
ms_filter_lock(f);
if (d->skip) {
ms_debug("skipping..");
send_dtmf(f, d->skip_until-d->dtmf_duration, timestamp);
d->dtmf_start = FALSE;
if (!RTP_TIMESTAMP_IS_NEWER_THAN(timestamp, d->skip_until)) {
freemsg(im);
ms_filter_unlock(f);
continue;
}
d->skip = FALSE;
d->dtmf = 0;
}
if (d->skip == FALSE && d->mute_mic==FALSE){
int pt = mblk_get_payload_type(im);
header = rtp_session_create_packet(s, 12, NULL, 0);
if (pt>0)
rtp_set_payload_type(header, pt);
rtp_set_markbit(header, mblk_get_marker_info(im));
header->b_cont = im;
rtp_session_sendm_with_ts(s, header, timestamp);
}
else{
freemsg(im);
}
if (d->dtmf != 0) {
ms_debug("prepare to send RFC2833 dtmf.");
d->skip_until = timestamp + d->dtmf_duration;
d->skip = TRUE;
d->dtmf_start = TRUE;
}
ms_filter_unlock(f);
}
}
static void _sender_process(MSFilter * f)
{
SenderData *d = (SenderData *) f->data;
RtpSession *s = d->session;
mblk_t *im;
uint32_t timestamp;
if (d->relay_session_id_size>0 &&
( (f->ticker->time-d->last_rsi_time)>5000 || d->last_rsi_time==0) ) {
ms_message("relay session id sent in RTCP APP");
rtp_session_send_rtcp_APP(s,0,"RSID",(const uint8_t *)d->relay_session_id,d->relay_session_id_size);
d->last_rsi_time=f->ticker->time;
}
ms_filter_lock(f);
im = ms_queue_get(f->inputs[0]);
do {
mblk_t *header;
timestamp = get_cur_timestamp(f, im);
if (d->dtmf != 0 && !d->skip) {
ms_debug("prepare to send RFC2833 dtmf.");
d->skip_until = timestamp + d->dtmf_duration;
d->dtmf_ts_cur=timestamp;
d->skip = TRUE;
}
if (d->skip) {
uint32_t origin_ts=d->skip_until-d->dtmf_duration;
if (RTP_TIMESTAMP_IS_NEWER_THAN(timestamp,d->dtmf_ts_cur)){
ms_debug("Sending RFC2833 packet, start_timestamp=%u, dtmf_ts_cur=%u",origin_ts,d->dtmf_ts_cur);
send_dtmf(f, origin_ts);
}
}
if (im){
if (d->skip == FALSE && d->mute_mic==FALSE){
header = rtp_session_create_packet(s, 12, NULL, 0);
rtp_set_markbit(header, mblk_get_marker_info(im));
header->b_cont = im;
rtp_session_sendm_with_ts(s, header, timestamp);
}else{
freemsg(im);
}
}
}while ((im = ms_queue_get(f->inputs[0])) != NULL);
if (d->last_sent_time == -1) {
if ((d->last_stun_sent_time == -1) || ((f->ticker->time - d->last_stun_sent_time) >= 500)) {
d->last_stun_sent_time = f->ticker->time;
}
if (d->last_stun_sent_time == f->ticker->time) {
send_stun_packet(s);
}
}
ms_filter_unlock(f);
}
static void process_cn(MSFilter *f, SenderData *d){
if (d->cng_data.datasize>0){
rtp_header_t *rtp;
/* get CN payload type number */
int cn_pt=rtp_profile_find_payload_number(d->session->snd.profile, "CN", 8000, 1);
/* create the packet, payload type number is the one used for current codec */
mblk_t *m=rtp_session_create_packet(d->session, 12, d->cng_data.data, d->cng_data.datasize);
/* replace payload type in RTP header */
rtp=(rtp_header_t*)m->b_rptr;
rtp->paytype = cn_pt;
rtp_session_sendm_with_ts(d->session,m,d->last_ts);
d->cng_data.datasize=0;
}
}
int main(int argc, char *argv[])
{
RtpSession *session;
unsigned char buffer[160];
int i;
FILE *infile;
char *ssrc;
uint32_t packet_ts=0,send_ts=0;
uint32_t send_ts_inc=160;
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-ptime")==0){
ortp_message("Ptime related jitter will be added to outgoing stream.");
i++;
if (i>=argc) {
printf("%s",help);
return -1;
}
jitter=atoi(argv[i]);
send_ts_inc=jitter*8;
}
}
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) )
{
mblk_t *m=rtp_session_create_packet(session,RTP_FIXED_HEADER_SIZE,buffer,i);
__rtp_session_sendm_with_ts(session,m,packet_ts,send_ts);
packet_ts+=160;
if ((send_ts+send_ts_inc)<=packet_ts){
send_ts+=send_ts_inc;
}
if (clockslide!=0 && send_ts%(160*50)==0){
ortp_message("Clock sliding of %i miliseconds now",clockslide);
rtp_session_make_time_distorsion(session,clockslide);
}
}
fclose(infile);
rtp_session_destroy(session);
ortp_exit();
ortp_global_stats_display();
return 0;
}
static void _sender_process(MSFilter * f)
{
SenderData *d = (SenderData *) f->data;
RtpSession *s = d->session;
mblk_t *im;
uint32_t timestamp;
if (d->relay_session_id_size>0 &&
( (f->ticker->time-d->last_rsi_time)>5000 || d->last_rsi_time==0) ) {
ms_message("relay session id sent in RTCP APP");
rtp_session_send_rtcp_APP(s,0,"RSID",(const uint8_t *)d->relay_session_id,d->relay_session_id_size);
d->last_rsi_time=f->ticker->time;
}
ms_filter_lock(f);
im = ms_queue_get(f->inputs[0]);
do {
mblk_t *header;
timestamp = get_cur_timestamp(f, im);
if (d->dtmf != 0 && !d->skip) {
ms_debug("prepare to send RFC2833 dtmf.");
d->skip_until = timestamp + d->dtmf_duration;
d->dtmf_ts_cur=timestamp;
d->skip = TRUE;
}
if (d->skip) {
uint32_t origin_ts=d->skip_until-d->dtmf_duration;
if (RTP_TIMESTAMP_IS_NEWER_THAN(timestamp,d->dtmf_ts_cur)){
ms_debug("Sending RFC2833 packet, start_timestamp=%u, dtmf_ts_cur=%u",origin_ts,d->dtmf_ts_cur);
send_dtmf(f, origin_ts);
}
}
if (im){
if (d->skip == FALSE && d->mute==FALSE){
header = rtp_session_create_packet(s, 12, NULL, 0);
rtp_set_markbit(header, mblk_get_marker_info(im));
header->b_cont = im;
mblk_meta_copy(im, header);
rtp_session_sendm_with_ts(s, header, timestamp);
} else if (d->mute==TRUE && d->skip == FALSE) {
process_cn(f, d, timestamp, im);
freemsg(im);
//Send STUN packet as RTP keep alive
check_stun_sending(f);
}else{
freemsg(im);
}
} else if (d->skip == FALSE) {
// Send STUN packet as RTP keep alive even if there is no input
check_stun_sending(f);
}
}while ((im = ms_queue_get(f->inputs[0])) != NULL);
if (d->last_sent_time == -1) {
check_stun_sending(f);
}
/*every second, compute output bandwidth*/
if (f->ticker->time % 1000 == 0) rtp_session_compute_send_bandwidth(d->session);
ms_filter_unlock(f);
}
