[MPlayer-DOCS] CVS: main/DOCS/man/en mplayer.1,1.851,1.852

[D Richard Felker III]

On Wed, Jan 12, 2005 at 02:54:02PM +0100, Sebastian Krämer wrote:
> On Wednesday 12 January 2005 13:17, Diego Biurrun wrote:
> > The Wanderer writes:
> > > Unclear antecedent for the second "it" - does this mean that aspect
> > > overriding cannot be done for most AVI files, or that aspect
> > > autodetection cannot be done for most AVI files?
> >
> > I think it's the latter.  Can somebody confirm this?
> >
> > So I suggest:
> >
> >   Aspect ratio is autodetected for MPEG files, but it cannot be
> >   autodetected for most AVI files.
> 
> I want to confirm. An aspect can be set for avi files on the command line (I 
> just displayed one with aspect 1:1 which - of course - isn't the original 
> aspect).
> AFAIK the aspect for avi files is computed by width/height of the file and 
> then "rescaled", quite a kind of "dummy autodetection".

no, mplayer uses frame aspect ratios (stupid) rather than pixel aspect
ratios. so there's no "dummy autodetection" going on here, just using
width/height as aspect. of course, if it were using pixel aspect, it
would just use 1:1 as the aspect and that'd be even easier.

rich