[MPlayer-users] filters order: pullup vs postprocessing

[D Richard Felker III]

On Wed, Mar 23, 2005 at 10:41:31PM +0300, Vladimir Mosgalin wrote:
> I'm trying to rip some dvds and some questions arise in process.
> 
> First there is one most likely especially for Rich ;) :
> 
> If I want to use both postprocessing (say, spp) and pullup filter when
> encoding from dvd, in what order should they go? Will -vf spp,pullup
> order be OK in case of completely soft-telecined material? What about

if the material is completely soft-telecined, you should not be using
pullup, since it will just waste time, and either do nothing or
introduce errors!

if the material is hard-telecined whatsoever, you CANNOT apply
postprocessing to it directly or you will ruin the separation between
the fields by blurring them together. so always use -vf pullup,spp,...

> detc and filmdint filters instead of pullup?

detc most definitely does not pass the quantization info through, so
postproc filters will not work correctly after it. filmdint might; i
don't know. ivtc does not. pullup does.

rich