Should I deinterlace before divx/wmv/etc?

[swiego]

Newbie question but this is the newbie forum, right?

I am capturing VHS/SVHS to Huffyuv 4:2:2 and although gspot doesn't say either way, I am *guessing* that this is interlaced. (Certainly appears to be when I play it in videolan player, lots of combs on motion.)

Then I want to do some noise reduction, cropping, etc. What I do is run it through an avisynth script that deinterlaces the video (tedeint), runs it through noise removal (neatvideo) and a few other minor cleanups.

I open this script in virtualdub, set my output destination as, say, xvid, and write out my new file.

The question... am I supposed to deinterlace (like I am doing) before feeding xvid? Are formats like xvid progressive by nature? I don't see any flag for interlaced/progressive for xvid. I think I'm doing the right thing but I want to make sure before I start encoding 100s of hours of source material.

[swiego]

Anyone? I'm still a little lost here...

[manono]

Hi-

Since XviD is normally progressive, then yes, if it's telecined film, you IVTC, and if it's pure 30fps interlaced video, you deinterlace.

[swiego]

And if it's blended, I cry, right?

[manono]

Hehe. Depends on how it's blended. Some can be unblended more-or-less successfully.