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

[Rolf Ernst]

On Mon, Feb 22, 2010 at 7:16 PM, Ken Bass <daytooner at gmail.com> wrote:

> 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
> > _______________________________________________
> > MPlayer-users mailing list
> > MPlayer-users at mplayerhq.hu
> > https://lists.mplayerhq.hu/mailman/listinfo/mplayer-users
> >
>
> Okay, that makes sense. Now (warning: stupid question) how would I do that
> -
> edit/remux?
>
> ken
>
What container format do you have (what extension generally)? What operating
system are you running?