static void insert_candidates(struct sdp_chopper *chop, struct packet_stream *rtp, struct packet_stream *rtcp,
struct sdp_ng_flags *flags, struct sdp_media *sdp_media)
{
const struct local_intf *ifa;
struct call_media *media;
struct ice_agent *ag;
unsigned int type_pref, local_pref;
enum ice_candidate_type cand_type;
struct ice_candidate *cand;
media = rtp->media;
cand_type = ICT_HOST;
if (flags->ice_force_relay)
cand_type = ICT_RELAY;
if (MEDIA_ISSET(media, PASSTHRU))
new_priority(sdp_media, cand_type, &type_pref, &local_pref);
else {
type_pref = ice_type_preference(cand_type);
local_pref = -1;
}
ag = media->ice_agent;
if (ag && AGENT_ISSET(ag, COMPLETED)) {
ifa = rtp->selected_sfd->local_intf;
insert_candidate(chop, rtp->selected_sfd, type_pref, ifa->unique_id, cand_type);
if (rtcp) /* rtcp-mux only possible in answer */
insert_candidate(chop, rtcp->selected_sfd, type_pref, ifa->unique_id, cand_type);
if (flags->opmode == OP_OFFER && AGENT_ISSET(ag, CONTROLLING)) {
GQueue rc;
GList *l;
chopper_append_c(chop, "a=remote-candidates:");
ice_remote_candidates(&rc, ag);
for (l = rc.head; l; l = l->next) {
if (l != rc.head)
chopper_append_c(chop, " ");
cand = l->data;
chopper_append_printf(chop, "%lu %s %u", cand->component_id,
sockaddr_print_buf(&cand->endpoint.address), cand->endpoint.port);
}
chopper_append_c(chop, "\r\n");
g_queue_clear(&rc);
}
return;
}
insert_sfd_candidates(chop, rtp, type_pref, local_pref, cand_type);
if (rtcp) /* rtcp-mux only possible in answer */
insert_sfd_candidates(chop, rtcp, type_pref, local_pref, cand_type);
}
static void insert_sfd_candidates(struct sdp_chopper *chop, struct packet_stream *ps,
unsigned int type_pref, unsigned int local_pref, enum ice_candidate_type type)
{
GList *l;
struct stream_fd *sfd;
for (l = ps->sfds.head; l; l = l->next) {
sfd = l->data;
insert_candidate(chop, sfd, type_pref, local_pref, type);
if (local_pref != -1)
local_pref++;
}
}
static void insert_candidates(struct sdp_chopper *chop, struct packet_stream *rtp, struct packet_stream *rtcp,
struct sdp_ng_flags *flags, struct sdp_media *sdp_media)
{
GList *l;
struct interface_address *ifa;
unsigned int pref;
struct call_media *media;
struct local_interface *lif;
struct ice_agent *ag;
unsigned int type_pref, local_pref;
enum ice_candidate_type cand_type;
struct ice_candidate *cand;
media = rtp->media;
cand_type = ICT_HOST;
if (flags->ice_force_relay)
cand_type = ICT_RELAY;
if (MEDIA_ISSET(media, PASSTHRU))
new_priority(sdp_media, cand_type, &type_pref, &local_pref);
else {
type_pref = ice_type_preference(cand_type);
local_pref = -1;
}
ag = media->ice_agent;
lif = ag ? ag->local_interface : media->interface;
if (ag && AGENT_ISSET(ag, COMPLETED)) {
ifa = g_atomic_pointer_get(&media->local_address);
insert_candidate(chop, rtp, 1, type_pref, ifa->preference, cand_type, ifa);
if (rtcp) /* rtcp-mux only possible in answer */
insert_candidate(chop, rtcp, 2, type_pref, ifa->preference, cand_type, ifa);
if (flags->opmode == OP_OFFER && AGENT_ISSET(ag, CONTROLLING)) {
GQueue rc;
GList *l;
chopper_append_c(chop, "a=remote-candidates:");
ice_remote_candidates(&rc, ag);
for (l = rc.head; l; l = l->next) {
if (l != rc.head)
chopper_append_c(chop, " ");
cand = l->data;
chopper_append_printf(chop, "%lu %s %u", cand->component_id,
smart_ntop_buf(&cand->endpoint.ip46), cand->endpoint.port);
}
chopper_append_c(chop, "\r\n");
g_queue_clear(&rc);
}
return;
}
for (l = lif->list.head; l; l = l->next) {
ifa = l->data;
pref = (local_pref == -1) ? ifa->preference : local_pref;
insert_candidate(chop, rtp, 1, type_pref, pref, cand_type, ifa);
if (rtcp) /* rtcp-mux only possible in answer */
insert_candidate(chop, rtcp, 2, type_pref, pref, cand_type, ifa);
if (local_pref != -1)
local_pref++;
}
}