[MPlayer-users] Synchronizing multiple instance of Mplayer over the network

[Jose Tavares]

curious topic ...
i was discussing exactly about this with 2 colleages and yesterday i joined
the list.
now, i found your message...

in my research i found something interesting ..
Using the tilesort SPU, Chromium can provide 3d acceleration over the entire
DMX display (consisting of multiple machines).
http://en.wikipedia.org/wiki/Xdmx

have you looked for xdmx?
i think you can do the same running just 1 mplayer, xdmx and chromium ..

your idea was the first solution that came to my mind too ..




On Thu, Nov 27, 2008 at 11:16 PM, Lehni <lists at scratchdisk.com> wrote:

> I imagined something along these lines, but did not know mplayer
> enough to know where to start looking. Thanks a lot for the pointers!
>
> And it seems that time and position can be retrieved:
>
> http://howto.wikia.com/wiki/Howto_configure_MPlayer/input-cmdlist
>
> get_percent_pos
> get_time_pos
> get_time_length
>
> So using these commands and speed_incr, I think I should be able to
> make the players follow a centralised clock pretty exactly.
>
> Very nice!
>
> Thanks,
>
> Lehni
>
> On 27 Nov 2008, at 20:35, Jan Engelhardt wrote:
>
> >
> > On Thursday 2008-11-27 21:19, Oliver Seitz wrote:
> >>
> >>> Is there such a feature?
> >>
> >> I think not. Or maybe not yet. Reading time and again thru the
> >> manpage
> >> with that very issue in mind, I thougt it might be worth trying to
> >> tell
> >> mplayer to use the clock for timing, keeping the clocks of the
> >> computers
> >> in sync via ntpd. That's a bit of a strange procedure and leaves the
> >> problem to start the players at exactly the same time, but it might
> >> be an
> >> approach. Have never tried it, though.
> >
> > Ingredients:
> > * mplayer -input file=<fifo>
> > * support for obtaining the time of the currently playing file
> >  (I think this may be missing in mplayer, but easy to add)
> > * a local program that couples the FIFO with the network
> > * a remote program (possibly a central server) that resyncs
> >  the video streams of all mplayer instances connected through
> >  the daemons using commands mplayer accepts over the FIFO.
> >
> > Especially useful for resyncing are "speed_incr 0.01" /
> > "speed_incr -0.01".
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