[MPlayer-users] How To: best way to rescale

[Ken Bass]

On Mon, Feb 22, 2010 at 4:01 PM, Rolf Ernst
<rolf.ernst at silverlightning.org>wrote:

> On Mon, Feb 22, 2010 at 4:36 PM, Ken Bass <daytooner at gmail.com> wrote:
>
> > On Mon, Feb 22, 2010 at 12:09 PM, Oliver Seitz <info at vtnd.de> wrote:
> >
> > > Am 22.02.2010, 19:51 Uhr, schrieb Ken Bass <daytooner at gmail.com>:
> > >
> > > Another question would be, why would you want to rescale a video
> without
> > > recoding?
> > >
> >
> > The reason is that I have several videos that won't play on my home
> theatre
> > system because it is limited to a resolution of 800x600. And, no, I'd
> > rather
> > not have to buy a new system at the moment. I just wondered if there
> might
> > be a way to quickly and easily rescale without fully recoding.
> >
> > And I wasn't sure recoding would give me any significantly better
> quality,
> > given the time it would take to do it (even with a 4 core 3Ghz system it
> > might take longer to recode then the length of the video). But as you
> > surmised, and I found out, the quality was much worse, so it's probably
> > best
> > to just fully recode.
> >
> > So I'll just sit back, make some popcorn, have some coffee, and wait.
> >
> > Thanks for the explanation, though.
> >
> > FWIW: Necessity is the mother of invention. So we'll have to wait till
> some
> > scientist needs it :-).
> >
> > ken
> > _______________________________________________
> > MPlayer-users mailing list
> > MPlayer-users at mplayerhq.hu
> > https://lists.mplayerhq.hu/mailman/listinfo/mplayer-users
> >
>
> The resolution is part of the container information (AVI/MP4/MATROSKA).
> Whatever this info says, that'll play. There is no recording involved.
> Sometimes you can just edit this header information but most likely you
> will
> wind up remultiplexing which is still very fast and there is no quality
> loss/encoding.
>
> /re
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>

Okay, that makes sense. Now (warning: stupid question) how would I do that -
edit/remux?

ken