Guide to overcoming interlaced movies

[edmundsy]

I was looking for a reasonably simple guide that explains the step in encoding interlaced movies, but I can't seem to find one.

Would anyone by any chance know if there's a guide out there that goes through the steps?

ie, What should be done when you get combing in all the frames? Do we change the frame rate, and how do we do it etc.

It gets really confusing at times for me, and many ppl seems to recommend using SmartDeinterlacer, but when I tried making divx's with it, I end up with very bad quality. The pictures look very wavy. One example is the beginning of the Stuart Little trailer that has a shot of two buildings. The buildings were looking very very wavy when I played back. Is this due to certain settings which I might have got wrong?

It would be great if someone could come up with a guide that explains what should be done in certain cases. I stumbled on websites what explains what IVTC and interlacing are all about, but I don't seem to find them useful when it comes to encoding.

Thanks in advanced.

Subby

[MxxCon]

try http://www.geocities.com/lukesvideo/interlacing.html
i don't really like his encoding guide, but interlacing part is a good read

[Bugs Bunny]

The short answer: Read the Doom9 guide(s).

The long answer: It depends on the tools you use. If you use the AVS route, then you can try the IVTC plugin; if the VFAPI route, then TMPGEnc. There's a fair bit of tech trivia involved, so it takes some effort to type them up, so the least you can do is to put out some effort on your own to read the available guides, then come back here and ask intelligently, and you'll have more people trying to help you. Understand that most of the non-newbies here have answered that particular question a thousand times over already, and another "I don't know jack, tell me all I want to know" query ain't gonna perk their interest any.

FYI, I am using TMPGEnc to do IVTC before feeding to Nandub. Although I find the Doom9 guide to be informative, I disagree with his opinion on trying to do IVTC manually (rather than automatically, followed by some manual checking). His claim that the IVTC pattern only changes a couple of times in a movie isn't exactly kosher, as on most of the movies I did, it can change as often as at every scene change. The auto-IVTC (using Flicker detect) has its problems, too, but it's faster to correct its problems than trying to do the damn thing by yourself.