[MPlayer-users] encoder

[Haas Wernfried]

On Wed, Jun 26, 2002 at 08:40:35PM +0100, Pedro Jorge Dias Cardoso wrote:
> i have some problems to start working with menconder:
>  First, i download the last mplayer - v0.9pre5. But i can't find the
> enconder to divx. when i make 'mencoder -ovc help' the output is
> -copy
> -rawrgb
> -frameno
> -lavc
> this means i have to download the divx, and compile it again?
you can either use lavc oder install divx and recompile. lavc is recommended
by mplayer-developers. please rtfm more about this using man mencoder and
http://www.mplayerhq.hu/DOCS/encoding.html#2.4
should be clear then
 
>  Second, i try to split one big avi file, and i use:
>   'mencoder -ovc copy -endpos 30:00', but the first part of the file is
> bigger than the whole movie.

i don't know, but there are many mails about splitting avis on this list, i
just never read them. try searching the archives:
http://mplayerhq.hu/pipermail/mplayer-users/

> Thrid, its possible to encode a mpeg movie into a divx movie without any
> losses of quality? I mean, whole the information that are in mpeg file
> stay in divx, only more compressed, like a zip file. what are the option
> to do this?
afaik both mpeg and divx are lossy compression-techniques, but divx produces
smaller files than mpeg I/II. they usually just throw away any information you
cannot see / hear (mp3), while zip and other archives (rar, gzip, bzip) keep
all information intact. try searching google.com, i bet you find lots of
information :)
of course you can re-encode mpeg to divx, you get a file that can be quite
smaller and quality stays at the quite same level (if you know what you are
doing -> man mencoder)

regards
	wernfried

-- 
-> Wernfried Haas - w.haas at xover.mud.at / amnenion at xover.mud.at 
-> Homepage: http://xover.mud.at/~amnenion
-> Beutelland: http://bl.mud.at