void jitter_control_update_size(JitterControl *ctl, queue_t *q){
mblk_t *newest=qlast(q);
mblk_t *oldest=qbegin(q);
uint32_t newest_ts,oldest_ts;
if (newest==NULL) return;
newest_ts=rtp_get_timestamp(newest);
oldest_ts=rtp_get_timestamp(oldest);
ctl->cum_jitter_buffer_count++;
ctl->cum_jitter_buffer_size+=(uint32_t)(newest_ts-oldest_ts);
}
/* put an rtp packet in queue. It is called by rtp_parse()*/
void rtp_putq(queue_t *q, mblk_t *mp)
{
mblk_t *tmp;
rtp_header_t *rtp=(rtp_header_t*)mp->b_rptr,*tmprtp;
/* insert message block by increasing time stamp order : the last (at the bottom)
message of the queue is the newest*/
ortp_debug("rtp_putq(): Enqueuing packet with ts=%i and seq=%i",rtp->timestamp,rtp->seq_number);
if (qempty(q)) {
putq(q,mp);
return;
}
tmp=qlast(q);
/* we look at the queue from bottom to top, because enqueued packets have a better chance
to be enqueued at the bottom, since there are surely newer */
while (!qend(q,tmp))
{
tmprtp=(rtp_header_t*)tmp->b_rptr;
ortp_debug("rtp_putq(): Seeing packet with seq=%i",tmprtp->seq_number);
if (rtp->seq_number == tmprtp->seq_number)
{
/* this is a duplicated packet. Don't queue it */
ortp_debug("rtp_putq: duplicated message.");
freemsg(mp);
return;
}else if (RTP_SEQ_IS_GREATER(rtp->seq_number,tmprtp->seq_number)){
insq(q,tmp->b_next,mp);
return;
}
tmp=tmp->b_prev;
}
/* this packet is the oldest, it has to be
placed on top of the queue */
insq(q,qfirst(q),mp);
}