---
libavformat/rtspdec.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/libavformat/rtspdec.c b/libavformat/rtspdec.c
index 7476c45..c0797ad 100644
--- a/libavformat/rtspdec.c
+++ b/libavformat/rtspdec.c
@@ -621,6 +621,10 @@ static int rtsp_listen(AVFormatContext *s)
/* ff_url_join. No authorization by now (NULL) */
ff_url_join(rt->control_uri, sizeof(rt->control_uri), "rtsp", NULL, host,
port, "%s", path);
+
+ if (port < 0)
+ port = RTSP_DEFAULT_PORT;
+
/* Create TCP connection */
ff_url_join(tcpname, sizeof(tcpname), "tcp", NULL, host, port,
"?listen&listen_timeout=%d", rt->initial_timeout * 1000);
--
1.7.9.4
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