FFMPEG failed to load stream from RTSP VLC Server

ffmpeg-vlc.txt

https://trac.ffmpeg.org/ticket/1941

It looks like FFmpeg incorrectly parses the SDP information in case of MPEG-2 transport stream.
When payload type is 33, it uses the Session control url instead of the Media control url in RTSP SETUP request.

a=control:rtsp://..:8554/
vs
a=control:rtsp://..:8554/trackID=0

I was able to receive the stream with the following fix:

diff --git a/libavformat/rtsp.c b/libavformat/rtsp.c
index c153cac..b8c7128 100644
--- a/libavformat/rtsp.c
+++ b/libavformat/rtsp.c
@@ -541,7 +541,7 @@
         break;
     case 'a':
         if (av_strstart(p, "control:", &p)) {
-            if (s->nb_streams == 0) {
+            if (rt->nb_rtsp_streams == 0) {
                 if (!strncmp(p, "rtsp://", 7))