Ticket #420: updated pjmedia SDP and media UDP transport to support IPv6

git-svn-id: https://svn.pjsip.org/repos/pjproject/trunk@1615 74dad513-b988-da41-8d7b-12977e46ad98
diff --git a/pjsip-apps/src/samples/siprtp.c b/pjsip-apps/src/samples/siprtp.c
index 1ca4618..2fe135c 100644
--- a/pjsip-apps/src/samples/siprtp.c
+++ b/pjsip-apps/src/samples/siprtp.c
@@ -1027,7 +1027,7 @@
 
     /* Standard media info: */
     m->desc.media = pj_str("audio");
-    m->desc.port = pj_ntohs(tpinfo.skinfo.rtp_addr_name.sin_port);
+    m->desc.port = pj_ntohs(tpinfo.skinfo.rtp_addr_name.ipv4.sin_port);
     m->desc.port_count = 1;
     m->desc.transport = pj_str("RTP/AVP");