TT#91151 save raw protocol string

Change-Id: I21bee5b28522ef01fa5902c0b1fc69e2cade8434

daemon/call.c

@@ -2076,6 +2076,8 @@ static void __update_media_protocol(struct call_media *media, struct call_media
 	}
 
 	/* deduct protocol from stream parameters received */
+	call_str_cpy(other_media->call, &other_media->protocol_str, &sp->protocol_str);
+
 	if (other_media->protocol != sp->protocol) {
 		other_media->protocol = sp->protocol;
 		/* If the endpoint changes the protocol, we reset the other side's

daemon/sdp.c

@@ -1530,6 +1530,7 @@ int sdp_streams(const GQueue *sessions, GQueue *streams, struct sdp_ng_flags *fl
 
 			sp->consecutive_ports = media->port_count;
 			sp->num_ports = sp->consecutive_ports * 2; // only do *=2 for RTP streams?
+			sp->protocol_str = media->transport;
 			sp->protocol = transport_protocol(&media->transport);
 			sp->type = media->media_type_str;
 			sp->type_id = media->media_type_id;

include/call.h

@@ -244,6 +244,7 @@ struct stream_params {
 	struct endpoint		rtcp_endpoint;
 	unsigned int		consecutive_ports;
 	unsigned int		num_ports;
+	str			protocol_str;
 	const struct transport_protocol *protocol;
 	str			format_str;
 	GQueue			sdes_params; // slice-alloc'd
@@ -333,6 +334,7 @@ struct call_media {
 	unsigned int		unique_id;	/* RO */
 	str			type;
 	enum media_type		type_id;
+	str			protocol_str;
 	const struct transport_protocol *protocol;
 	str			format_str;
 	sockfamily_t		*desired_family;