Inverse Telecine

[Trenton_Net]

Hi,

I have some DVD's that cannot be used in conjunction with FORCE FILM mode in DVD2AVI! As such, before I frameserve to TMPgenc, I want to do a true Inverse Telecine so I can remove interlacing artifacts associated with movies that are not true 29 FPS.

The problem I have is how can I do an IVTC using a virtua dub filter? I don't mean using the Telecide filter, but a true 23FPS IVTC. Something on the lines of IVTC in Tmpgenc but a true exact IVTC using VirtuaDub.

Thanks, I really appreicate it.

[VidGuy]

I think there is an IVTC filter for VirtualDub, but the way I would handle it is to actually use TMPGEnc to do the IVTC, then create a VFAPI avi file from the *.tpr project file, then feed that to Virtual Dub - it works great (although I use AviSynth rather than VirtualDub - but it ought to work)

[Trenton_Net]

Does anyone know where I can get a flawless IVTC plugin for Virtual dub? It would really be great, since FORCE FILM isn't a true IVTC and that it dosn't work alot of the time.

[poopyhead]

wut you can do (learned from sefy) is to NOT use forced film in dvd2avi. rather leave the framerate at 29.97 in tmpgenc. however, in the video tab..choose interlaced, rather than 3:2 pulldown.

also, if you do this, make sure in the source video settings, you select the correct field order because it DOES matter if you make your output video interlaced. for me, it has been bottom field first..however it could be different for you. (you'll only notice it if you play your dvd rip on a TV, computer monitors don't care) when i used the wrong field order and played my rip on tv, it was jumpy as hell....better use a cd-rw to test first in case you mess up.

[Trenton_Net]

Sounds good, but I already do something similar to that, which is why I asked about how to do a true IVTC in VirtuaDub

[poopyhead]

Trenton_Net, any reason on why you wanna use virtual dub to get rid of the interlacd stuff?

the procedure i just mentioned is pretty easy (doesn't require any filters or other programs) and the quality doesn't decrease

[shochan]

IVTC is to convert from 29 to 24. alot of dvds have a mix of ntsc and film parts normaly in the begining of the intro. the only way for this to truely work is to let it come out of dvd2avi 29.97 then inverse telecine it and sometimes deinterlace it.

The best way is to use avisynth and the mpeg2dec.dll plugin and the inversetelecine.dll plugin.

laod avisynth like it says and then run dvd2avi and save your project. do not use forced film.

open notepad and type this.
*note the following is for 16x9.*

LoadPlugIn("c:\InverseTelecine.dll")
loadplugin("c:\mpeg2dec.dll")
v=mpeg2source("D:\movie.d2v")
a=wavsource("D:\audio.d2v")
audiodub(a,v)
bicubicresize(480,360)
addborder(0,60,0,60)
InverseTelecine(40,10,15)

*note for 4x3 surce change the bicubicresize to 480,480 and delete the addborders entry.*

save that as an avs and run it in media player to see if it works. but you have to have both of those dlls and avisynthe properly loaded to work. (you dont load the dll files till your in the script.

If it all goes smoth you can framserve that into any encoder you like. if you have a question send it to me at shochan@satx.rr.com. Good luck






<font size=-1>[ This Message was edited by: shochan on 2002-01-06 13:00:05 ]</font>