[MEncoder-users] Encoding filters

[Justin Randall]

Hi everyone,

I am trying to give up my dependency for the excellent AviSynth
(because I want to stop using Windows) for video pre-processing.  I
need your help. My question to you experts out there is are their any
pre-processing filters built into mencoder that are roughly equivalent
to Donald Graft's Decomb package? Specifically the Telecide filter for
inverse teleclining NTSC video sources 29.97 -> 23.97 FPS.  I stumbled
across the -vf detc option but I don't know if this is the same or
not.

The other avisynth filter that I am completely hooked on is
RemoveGrain for cleaning up the picture. The same question... is there
a mencoder option that does the equivalent of this filter?

I have been using these settings for those who are familiar with AviSynth:

crop(24,0,704,480)
Telecide(guide=1).Decimate()
RemoveGrain(mode=1)
LanczosResize(640,480)

I assume that it makes sense to crop first, then do the filter
processing, then resize? I am essentially looking for the mencoder
equivalent for these commands. I saw in the documentation that Lanczos
scaling is invoked with -sws 9, but I am not sure about the noise
filtering and the inverse telecline options. Any help would be
appreciated! I've been reading through the documentation at
http://www.mplayerhq.hu/DOCS/man/en/mplayer.1.html and there are so
many options that I don't know where to begin for this.

Thanks,
Justin