[MEncoder-users] Re: adding black bars to maintain aspect ratio2

[Oded Shimon]

On Fri, Feb 24, 2006 at 02:32:21PM -0800, Jon Drukman wrote:
> Nico Sabbi wrote:
> >with what type of output?
> >If with avi something like -vf scale=640:-10,expand=640:480 will keep 
> >A/R and
> >expand to 640x480 (4/3)
> 
> output format is .flv - the scale,expand thing worked perfectly.  thanks 
> so much!

No need to use both scale AND expand, just:
-vf expand=aspect=4/3

- ods15