[MPlayer-users] Questions on video filters

[Giacomo Comes]

On Tue, Nov 21, 2006 at 02:04:28PM -0500, T wrote:
> Hi, 
> 
> Just want to confirm that if the followings are correct:
> 
> - If I build video filters progressively in my script as 
>   "-vf crop=640 -vf pp=de -vf harddup", is it the same as specifying 

This is wrong. If you specify many times -vf, only the last is used.
You could use -vf-add instead.

>   -vf crop=640,pp=de,harddup?
> 
> - Will the filters be applied in the order that their are specified?

Yes.

> 
> - I noticed that the filters are opened reversely:
> 
>  Opening video filter: [harddup]
>  Opening video filter: [pp=de]
>  [...]
> 
> So, if I want to put the harddup at the end of filter chain, is the above
> correct, or the other way around?

The above is correct.

Giacomo