[MPlayer-users] mpeg muxer: Only fixed aspect?

[D Richard Felker III]

On Fri, Mar 11, 2005 at 02:47:58PM +0100, Nico Sabbi wrote:
> Giacomo Comes wrote:
> 
> >On Fri, Mar 11, 2005 at 04:55:23AM +0000, JustFillBug wrote:
> > 
> >
> >>It seems the mpeg mux and lavc mpeg encoder only take fixed aspect ratio
> >>like 4/3, 16/9. If a aspect other than 4/3 or 16/9 was specified to
> >>-mpegopts aspect= or -vf aspect, the 4/3 is assume(?)
> >>   
> >>
> >
> >mpeg aspect can be 4/3, 16/9, 2.21 or 1 (no aspect)
> >if the aspect value specified with -lavcopts aspect=n
> >is another value, the closest match between 1, 4/3, 16/9, 2.21
> >is choosen. This is for 1.0pre6 and older version.
> >I haven't check with the new muxer. Nico?
> >
> > 
> >
> the same, but vaspect is a string parameter, so you can't approximate it

Then it should probably be fixed, just like fps. :)

> >>How does anamorphic aspect works for SVCD or DVD mpeg?
> >>
> >>   
> >>
> >I'm not 100% sure, but I think that 
> >only 16/9 DVD are played correctly by hardware DVD players.
> >VCD/SVCD are always played as 4/3
> >
> >Giacomo
> 
> 4/3 is perfectly valid for dvd, 2.21 is not

I know 4/3 and 16/9 are valid for DVD, and nothing else is. What about
SVCD? Does it allow 16/9, or just 4/3?

Rich