IVTC question - did they temporal smooth first?

[volswagn]

I bought a bunch of DVDs that I'm trying to convert so that I can save them on my Windows Home Server. I was taping them off the air, but they were too compressed to start with and had a lot of MPEG artifacts, so I figured I'd buy the DVDs and start with a crisp source.



Unfortunately, it seems even *after* I IVTC the video, there are interlacing artifacts (see the first image above - yes, this is a "solid" frame). Can someone explain to me how this happens and what's the best way to convert this to something I can just store and watch over a popcorn hour box?



This second frame I'm attaching is using VirtualDub deinterlace with two fields of a single frame unwrapped side-by-side. As you can see, it looks almost like a "temporal" image is shadowed onto EACH FIELD. Like the top field has artifacts of the bottom field in it, and the bottom field has artifacts of the top image in it. Is this normal? I take it there's no way to un-do this, so what would you do?

Thanks for any suggestions.

[Soopafresh]

What did you use to IVTC ?

You're probably seeing frame blending artifacts.

[volswagn]

VirtualDub built-in IVTC. I did try AnimeIVTC (using AVISynth) and get the same result.

Thanks.

[Soopafresh]

Try Xvid4PSP. It'll use Avisynth's IVTC and will most likely give you a better finished product. Those frame blends can be removed completely, but you'll have to use Avisynth to do it.

http://forum.doom9.org/showthread.php?t=95924

[jagabo]

VirtualDub does not handle interlaced YV12 correctly.

https://forum.videohelp.com/threads/316415-Check-Over-My-Options-From-DVD-to-XviD-Conve...=1#post1958565
https://forum.videohelp.com/threads/307116-8mm-film-and-the-msu-old-color-restoration-f...=1#post1890833

If you really want to use VirtualDub's IVTC filters you can open your file with VirtualDub and use ConvertToYUY2(interlace=true) or ConvertToRGB(interlaced=true). But if you're going to do that you might as well IVTC in AviSynth. Try TFM() followed by TDecimate().

WhateverSource("filename.ext")
TFM()
TDecimate()

[manono]

And post a small sample if you continue to have problems.

[poisondeathray]

volswagn reported that he tried animeivtc already ; he didn't mention the parameters used, but if it was AnimeIVTC(mode=1) , that's essentially the same thing as TFM().TDecimate()

[volswagn]

poisondeathray: Thanks. I think I got myself confused in trying a bunch of options. I had been doing stuff off the air and AnimeIVTC worked fine. Due to the way I was trying to get the DVDs to mkv, I guess I hadn't actually tried AnimeIVTC on the DVD material, so that's my bad.

Everyone else: Thank you so much for the help. It was definitely VirtualDub not handling the YV12 correctly. Xvid4PSP did a perfect job on it, but it's slow as hell on Win7 x64. Seems like a great app though. I noticed that the conversion profile I was using (AnimeIVTC somethingorother, the 2.0 did not work) has a couple lines in the script that add a whole bunch of sharpening and I think that's what slowed it down. I'll have to play around with the script options and maybe see if I can take those lines out of the profile, since it's pretty-clear DVD material to start with.

I'd try again using straight AVISynth, but it looks like Xvid4PSP can figure out all the deinterlacing automatically and trim the MPEG files much better than I know how to do it myself.

Thanks again!!