Something

J:\mplayer-testclips\mplayer>mplayer.exe rtsp://81.196.182.171:554/demo/demo3gp20h.3gp -demuxer 21
MPlayer dev-SVN-r22306-3.2.3 (C) 2000-2007 MPlayer Team
CPU: Intel Pentium MMX P55C (Family: 5, Model: 4, Stepping: 3)
CPUflags:  MMX: 1 MMX2: 0 3DNow: 0 3DNow2: 0 SSE: 0 SSE2: 0
Compiled with runtime CPU detection.

Playing rtsp://81.196.182.171:554/demo/demo3gp20h.3gp.
Connecting to server 81.196.182.171[81.196.182.171]: 554...
rtsp: read error.
rtsp: read error.
librtsp: server responds: 'x?RTSP/1.0 200 OK'
rtsp: read error.
rtsp: read error.
librtsp: server responds: 'x?RTSP/1.0 200 OK'
rtsp_session: session can not be established.
Connecting to server 81.196.182.171[81.196.182.171]: 554...
http_read_response read 0 (i.e. EOF).
No stream found to handle url rtsp://81.196.182.171:554/demo/demo3gp20h.3gp


Exiting... (End of file)