--- rtp.c       31 May 2005 12:55:43 -0000      1.92.2.14
+++ rtp.c       23 Oct 2005 06:40:32 -0000
@@ -341,7 +341,9 @@
        struct sockaddr_in sin;
        unsigned int rtcpdata[1024];
        char iabuf[INET_ADDRSTRLEN];
-
+
+       if (!rtp)
+               return &null_frame;
        if (!rtp->rtcp)
                return &null_frame;