Problems cleaning up 3:2 pulldown interlace

Outofsync · Post by **Outofsync** » Mon Oct 01, 2007 3:02 pm

Hi I am using AMVapp tools (thanks) and in VD I can clearly see evidence of 3:2 pull down because frames 4 & 5 are interlaced. Or at least I think that is what it means. Well I tried using the standard scripting for AVIsynth and it doesn't clean the footage properly. Instead I end up with seemingly random interlaced frames. From frames 4/5 to 8 to 3 to 3 to 2/3. I have a clean source of Ergo Proxy. Is this a new format issue? Am I leaving out a scripting option? I am still learning the tools so it's possible. If anyone knows how I can properly clean this footage let me know. Thanks.

devilmaykickass · Post by **devilmaykickass** » Mon Oct 01, 2007 3:51 pm

I (and apparently, hundreds of other people) had the same problem with the R1 releases of the Sailor Moon Movies. I never did figure out how to fix it.

However I've seen at least one Ergo Proxy video and it was visually flawless. I'm not sure if you're getting your footage where they got theirs though.

Qyot27 · Post by **Qyot27** » Mon Oct 01, 2007 4:28 pm

devilmaykickass wrote:However I've seen at least one Ergo Proxy video and it was visually flawless. I'm not sure if you're getting your footage where they got theirs though.

Well, Ergo Proxy was aired in [for all I know] true, non-upscaled 720p, and so the RAWs floating around Japanese P2P networks are gorgeous.

Anyway, 3:2 pulldown is a flag - it means that you can force film the footage because it isn't interlaced - instead, it tells the DVD player to do so on the fly so old TVs can display it correctly. What you're talking about is telecining. I'd look at the documentation for TFM (a quick intro to it is located in the beta guide), since if it doesn't even help, practically nothing short of Yatta! will, and that kind of thing is simply insanity incarnate.

TIVTC (the package TFM comes as a part of) is located here:
http://bengal.missouri.edu/~kes25c/

Scintilla · Post by **Scintilla** » Mon Oct 01, 2007 8:39 pm

3:2 pulldown and telecining (in NTSC land) mean the same thing. The "3:2 pulldown flag" of MPEG-2 fame could just as easily be called the "telecine flag".

It's just that, when people say "3:2 pulldown", they're usually talking about the flag that kicks in at playback time, while when they say "telecining", they're talking about a process done before the original DVD encode. It's still the same thing happening to the video, just done at different times.

Outofsync · Post by **Outofsync** » Wed Oct 03, 2007 10:00 am

I think I may have a partial work around, still tweaking the process though. If I save the whole movie to DIVX I get my dark colors not blending properly. Not sure how much is my aging LCD but it is definitely an issue. However I noticed if I then open up a saved AVI and go to filter de-interlace + blend setting the random interlaced frames go away. So yester night, I decided to export selected clips directly with huffy even though this is much slower to seek through AVIsynth. I noticed significant improvement in video quality, and then I could filter out the frames, and adjust some of the contrast using the HVS filter. I am not totally certain this is the best quality still playing with it. So please post any more ideas as they come to you.

Outofsync · Post by **Outofsync** » Mon Oct 08, 2007 1:14 pm

Worthiness note: TVITC is an excellent toolkit for various interlacing problems and also allowed me to fix up some problems with Ergo Proxy. To others looking for getting the best footage out of Ergo I highly recommend it to play around with. I also recommend using a Divx avi to scrub through only, write the frames down you want then export huffy directly from the AVIsynth. The difference is huge and you will really notice it with this footage. You will need the Divx to seek through otherwise it's too cumbersome. If you don't do this then by the time your third compress comes around to finalize you'll be having a nightmare with the color palette.

Qyot27 wrote: (a quick intro to it is located in the beta guide), since if it doesn't even help, practically nothing short of Yatta! will, and that kind of thing is simply insanity incarnate.

TIVTC (the package TFM comes as a part of) is located here:
http://bengal.missouri.edu/~kes25c/