[MEncoder-users] Expand a 16/9 video to 4/3 with black bars

Grozdan microchip at telenet.be
Tue Jan 20 01:46:25 CET 2009


On Tuesday 20 January 2009 01:42:23 L Lee wrote:
> On 1/19/09 11:54 AM, "Grant" <emailgrant at gmail.com> wrote:
> > I'm trying to use the expand filter to expand a 16/9 video to 4/3 by
> > creating black bars and maintain 320x240 resolution for my Nokia N82.
> >
> > If I specify either 320:::::4/3 or 240:::::4/3 I get the right shape
> > with a 4/3 video window and black bars on the top and bottom on my
> > computer, but the resolution ends up being 428x320 and the Nokia
> > refuses to play it since its resolution is 320x240.  Does anyone know
> > how to do this?
>
> You might want to try these near the beginning of your filter chain. The
> "178" value may be debated...
>
> scale=320:178,expand=320:240

This is already answered in h264enc's thread on Doom9
http://forum.doom9.org/showthread.php?p=1239493#post1239493

>
> Laine Lee
>
>
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Regards

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