[MPlayer-dev-eng] mplayer + live.com cannot seek

[柏川]

hi,
i use mplayer + live.com play rtsp:// stream,can work,but cannot seek,why?
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Playing rtsp://172.16.17.251/ad.mp4.
Connecting to server 172.16.17.251[172.16.17.251]:554 ...
rtsp_session: Not a Real server. Server type is 'DSS/5.5 (Build/489.7;
Platform/Linux; Release/Darwin; )'.
Not a Realmedia rtsp url. Trying standard rtsp protocol.
Connected to server: 172.16.17.251
Stream not seekable!
Initiated "video/MP4V-ES" RTP subsession
Initiated "audio/MPEG4-GENERIC" RTP subsession
demux_rtp: Guessed the video frame rate as 24 frames-per-second.
        (If this is wrong, use the "-fps <frame-rate>" option instead.)
VIDEO:  [mp4v]  0x0  0bpp  24.000 fps    0.0 kbps ( 0.0 kbyte/s)
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