[MPlayer-users] How can I set a height of output file and keep the height-width ratio?

[Nico Sabbi]

On Monday 07 April 2008 08:34:23 Xell Zhang wrote:
> Hello all,
>
> I want to resize the video and keep the height-width ratio. But I
> did not find any parameters for that. I can use "-aspect aspect"
> set aspect ratio (4:3, 16:9 or 1.3333, 1.7777) but I guess it's not
> what I want, right?
>
> needs help! thanks :)

-vf scale=w:-10