TT#115400 explicitly disallow ptime in non-RTP SDPs

Change-Id: Ib1e324861b6a88e1a2f80e4f37a8afa654923a77
(cherry picked from commit e2bf4abee885ee0d8938b8be02df19ca4b4a28e7)

daemon/sdp.c

@@ -2624,7 +2624,7 @@ int sdp_replace(struct sdp_chopper *chop, GQueue *sessions, struct call_monologu
 			insert_crypto(call_media, chop, flags);
 			insert_dtls(call_media, chop);
 
-			if (call_media->ptime)
+			if (proto_is_rtp(call_media->protocol) && call_media->ptime)
 				chopper_append_printf(chop, "a=ptime:%i\r\n", call_media->ptime);
 
 			if (MEDIA_ISSET(call_media, ICE) && call_media->ice_agent) {

t/auto-daemon-tests-reorder.pl

@@ -6956,7 +6956,6 @@ a=T38FaxMaxBuffer:200
 a=T38FaxMaxDatagram:180
 a=T38FaxUdpEC:t38UDPRedundancy
 a=sendrecv
-a=ptime:20
 SDP
 
 (undef, $port_a) = answer('gh 766 reinvite', {
@@ -6990,7 +6989,6 @@ a=T38FaxMaxBuffer:262
 a=T38FaxMaxDatagram:176
 a=T38FaxUdpEC:t38UDPRedundancy
 a=sendrecv
-a=ptime:20
 SDP
 
 snd($sock_b, $port_a, rtp(0, 4000, 5000, 0x4567, "\x88" x 160));

t/auto-daemon-tests.pl

@@ -12535,7 +12535,6 @@ a=T38FaxMaxBuffer:200
 a=T38FaxMaxDatagram:180
 a=T38FaxUdpEC:t38UDPRedundancy
 a=sendrecv
-a=ptime:20
 SDP
 
 (undef, $port_a) = answer('gh 766 reinvite', {
@@ -12569,7 +12568,6 @@ a=T38FaxMaxBuffer:262
 a=T38FaxMaxDatagram:176
 a=T38FaxUdpEC:t38UDPRedundancy
 a=sendrecv
-a=ptime:20
 SDP
 
 snd($sock_b, $port_a, rtp(0, 4000, 5000, 0x4567, "\x88" x 160));