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<p class=MsoNormal><font size=1 face=Arial><span lang=EN-US style='font-size:
9.0pt;font-family:Arial'>All videos in <a href="http://m.youtube.com/">http://m.youtube.com</a>
are with RTSP streaming. For example, rtsp://v4.cache5.c.youtube.com/CjgLENy73wIaLwmvdEKI8wMquBMYJCAkFEIJbXYtZ29vZ2xlSARSB3JlbGF0ZWRgt5rQ3tb1r51ODA==/0/0/0/video.3gp</span></font></p>
<p class=MsoNormal><font size=1 face=Arial><span lang=EN-US style='font-size:
9.0pt;font-family:Arial'>I use VLC 1.1.10 to play the RTSP URL. The playback is
not smooth in the beginning. Every time, when the video resumes after pause,
the playback must be not smooth. I use a traffic sniffer tool (e.g. WireShark)
to analyze the incoming packets and found that the sending speed from server in
the beginning is much higher than the stream bitrate. Therefore, the more pause
and play are sent, the more packets are queued.</span></font></p>
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