static void sdp_process(SalOp *h){
ms_message("Doing SDP offer/answer process of type %s",h->sdp_offering ? "outgoing" : "incoming");
if (h->result){
sal_media_description_unref(h->result);
}
h->result=sal_media_description_new();
if (h->sdp_offering){
offer_answer_initiate_outgoing(h->base.local_media,h->base.remote_media,h->result);
}else{
int i;
if (h->sdp_answer){
belle_sip_object_unref(h->sdp_answer);
}
offer_answer_initiate_incoming(h->base.local_media,h->base.remote_media,h->result,h->base.root->one_matching_codec);
h->sdp_answer=(belle_sdp_session_description_t *)belle_sip_object_ref(media_description_to_sdp(h->result));
/*once we have generated the SDP answer, we modify the result description for processing by the upper layer.
It should contains media parameters constraint from the remote offer, not our response*/
strcpy(h->result->addr,h->base.remote_media->addr);
h->result->bandwidth=h->base.remote_media->bandwidth;
for(i=0;i<h->result->n_active_streams;++i){
strcpy(h->result->streams[i].rtp_addr,h->base.remote_media->streams[i].rtp_addr);
h->result->streams[i].ptime=h->base.remote_media->streams[i].ptime;
h->result->streams[i].bandwidth=h->base.remote_media->streams[i].bandwidth;
h->result->streams[i].rtp_port=h->base.remote_media->streams[i].rtp_port;
strcpy(h->result->streams[i].rtcp_addr,h->base.remote_media->streams[i].rtcp_addr);
h->result->streams[i].rtcp_port=h->base.remote_media->streams[i].rtcp_port;
if (h->result->streams[i].proto == SalProtoRtpSavp) {
h->result->streams[i].crypto[0] = h->base.remote_media->streams[i].crypto[0];
}
}
}
}
static int set_sdp_from_desc(belle_sip_message_t *msg, const SalMediaDescription *desc){
int err;
belle_sdp_session_description_t *sdp=media_description_to_sdp(desc);
err=set_sdp(msg,sdp);
belle_sip_object_unref(sdp);
return err;
}
static void sdp_process(SalOp *h){
ms_message("Doing SDP offer/answer process of type %s",h->sdp_offering ? "outgoing" : "incoming");
if (h->result){
sal_media_description_unref(h->result);
h->result = NULL;
}
/* if SDP was invalid */
if (h->base.remote_media == NULL) return;
h->result=sal_media_description_new();
if (h->sdp_offering){
offer_answer_initiate_outgoing(h->base.local_media,h->base.remote_media,h->result);
}else{
int i;
if (h->sdp_answer){
belle_sip_object_unref(h->sdp_answer);
}
offer_answer_initiate_incoming(h->base.local_media,h->base.remote_media,h->result,h->base.root->one_matching_codec);
/*for backward compatibility purpose*/
if(h->cnx_ip_to_0000_if_sendonly_enabled && sal_media_description_has_dir(h->result,SalStreamSendOnly)) {
set_addr_to_0000(h->result->addr);
for(i=0;i<h->result->nb_streams;++i){
if (h->result->streams[i].dir == SalStreamSendOnly)
set_addr_to_0000(h->result->streams[i].rtp_addr);
set_addr_to_0000(h->result->streams[i].rtcp_addr);
}
}
h->sdp_answer=(belle_sdp_session_description_t *)belle_sip_object_ref(media_description_to_sdp(h->result));
/*once we have generated the SDP answer, we modify the result description for processing by the upper layer.
It should contains media parameters constraint from the remote offer, not our response*/
strcpy(h->result->addr,h->base.remote_media->addr);
h->result->bandwidth=h->base.remote_media->bandwidth;
for(i=0;i<h->result->nb_streams;++i){
/*copy back parameters from remote description that we need in our result description*/
if (h->result->streams[i].rtp_port!=0){ /*if stream was accepted*/
strcpy(h->result->streams[i].rtp_addr,h->base.remote_media->streams[i].rtp_addr);
h->result->streams[i].ptime=h->base.remote_media->streams[i].ptime;
h->result->streams[i].bandwidth=h->base.remote_media->streams[i].bandwidth;
h->result->streams[i].rtp_port=h->base.remote_media->streams[i].rtp_port;
strcpy(h->result->streams[i].rtcp_addr,h->base.remote_media->streams[i].rtcp_addr);
h->result->streams[i].rtcp_port=h->base.remote_media->streams[i].rtcp_port;
if ((h->result->streams[i].proto == SalProtoRtpSavpf) || (h->result->streams[i].proto == SalProtoRtpSavp)) {
h->result->streams[i].crypto[0] = h->base.remote_media->streams[i].crypto[0];
}
}
}
}
}
