The player plugin what I wrote is based on Xine. I tried libmpeg2,
MPlayer and GStreamer before. With libmpeg2 I got a really nice picture
and good behavior, but I had no audio. I stopped working on that having
in mind that audio support and sync support will be difficult to
implement. With mplayer I had very fast success, but it was not so
stable. Mplayer doesn't like when the stream changes and it don't likes
fast forward/backward.
Which versions of MPlayer did you try? There were problems with
streaming from the stream-plugin which don't seem to come up in the
later versions of Mplayer. Seems they improved streaming support.