Resize/Crop/Deinterlace - DG NV tools vs. Avisynth

[Zathor]

In general I would like to know if anyone has experience with speed/quality in comparison between the NV and the avisynth tools/plugins for resize/crop/deinterlace. Which method do you prefer and why? You do not need to post an answer to this question if you do not use the NV tools at all because you have no Nvidia card or license file :)

Is it possible to use the cropping method of DGIndexNV and a avisynth deinterlacer?

May problems arise if I change the cropping values of DGIndexNV in the dgi file with a editor myself (mod 4 values only I suppose?).

Is it possible / recommended to use for every kind of source "deinterlace=1, use_pf=1"? I assume it will at least slow down the process if the source is fully progressive but will not harm the picture?

I'm asking all these question because I would like to extend the support of DGIndexNV in MeGUI and are searching for good default values like use every time "deinterlace=1" if the source is interlaced and so on.

I would like to know your opinions / experiences.

[Guest]

Is it possible to use the cropping method of DGIndexNV and a avisynth deinterlacer? Sure.

May problems arise if I change the cropping values of DGIndexNV in the dgi file with a editor myself (mod 4 values only I suppose?). The only problem would be if you messed up the correct mod values.

Is it possible / recommended to use for every kind of source "deinterlace=1, use_pf=1"? I assume it will at least slow down the process if the source is fully progressive but will not harm the picture? I wouldn't do that. Not all streams set pf correctly. It's common to encode everything as interlaced.