Exemple #1
0
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);
}
Exemple #2
0
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++;
	}
}