/**
* Sends a RTCP bye packet.
*@param session RtpSession
*@param reason the reason phrase.
**/
int rtp_session_bye(RtpSession *session, const char *reason) {
mblk_t *cm;
mblk_t *sdes = NULL;
mblk_t *bye = NULL;
int ret;
/* Make a BYE packet (will be on the end of the compund packet). */
bye = rtcp_create_simple_bye_packet(session->snd.ssrc, reason);
/* SR or RR is determined by the fact whether stream was sent*/
if (session->stats.packet_sent>0)
{
cm = allocb(sizeof(rtcp_sr_t), 0);
cm->b_wptr += rtcp_sr_init(session,cm->b_wptr, sizeof(rtcp_sr_t));
/* make a SDES packet */
sdes = rtp_session_create_rtcp_sdes_packet(session, TRUE);
/* link them */
concatb(concatb(cm, sdes), bye);
} else if (session->stats.packet_recv>0){
/* make a RR packet */
cm = allocb(sizeof(rtcp_rr_t), 0);
cm->b_wptr += rtcp_rr_init(session, cm->b_wptr, sizeof(rtcp_rr_t));
/* link them */
cm->b_cont = bye;
}else cm=bye;
/* Send compound packet. */
ret = rtp_session_rtcp_send(session, cm);
return ret;
}
static mblk_t * make_rr(RtpSession *session){
mblk_t *cm=NULL;
mblk_t *sdes=NULL;
cm=allocb(sizeof(rtcp_sr_t),0);
cm->b_wptr+=rtcp_rr_init(session,cm->b_wptr,sizeof(rtcp_rr_t));
/* make a SDES packet */
if (session->sd!=NULL)
sdes=rtp_session_create_rtcp_sdes_packet(session);
/* link them */
cm->b_cont=sdes;
return cm;
}
void __rtp_session_rtcp_process(RtpSession *session){
mblk_t *cm=NULL;
mblk_t *sdes=NULL;
if (session->mode==RTP_SESSION_SENDONLY || session->mode==RTP_SESSION_SENDRECV){
/* first make a SR packet */
cm=allocb(sizeof(rtcp_sr_t),0);
cm->b_wptr+=rtcp_sr_init(session,cm->b_wptr,sizeof(rtcp_sr_t));
/* make a SDES packet */
sdes=rtp_session_create_rtcp_sdes_packet(session);
/* link them */
cm->b_cont=sdes;
}else{
/* make a RR packet */
cm=allocb(sizeof(rtcp_rr_t),0);
cm->b_wptr+=rtcp_rr_init(session,cm->b_wptr,sizeof(rtcp_rr_t));
/* if we are recv-only do we need to add SDES packet ? I don't think so
as we are not a source */
}
/* send the compound packet */
ortp_rtcp_send(session,cm);
ortp_debug("Rtcp compound message sent.");
}
static mblk_t * make_rr(RtpSession *session) {
mblk_t *cm = allocb(sizeof(rtcp_sr_t), 0);
cm->b_wptr += rtcp_rr_init(session, cm->b_wptr, sizeof(rtcp_rr_t));
return cm;
}