Mixed FILM and NTSC in VOB files

[DJ Alik]

I don't know if this is the right forum to ask this question but i will try anyway.

I am trying to encode "Snatch" suberbit -> DivX 5.05
The problem i am having is the fact that cells 1-19 are FILM 20-25 are NTSC and 26-28 are FILM again. Is there an easy ( or not so easy) way to deinterlace just the specified vob cells? I supposed i can do something like break it up into 3 clips and deinterlace just the second one and then put it back together. Any help would be really appreciated

[Guest]

The Decomb package allows you to make an "override file" which you can use to force deinterlacing (or not) of frame ranges. The Decomb help file explains it.

Bur you didn't mention how you plan to treat the NTSC film portions. They will need to be IVTC'ed if you are not going to deinterlace them. If you use Telecide() for your IVTC'ing, its normal postprocessing will take care of deinterlacing the video parts, and you won't have to worry about the manual overrides, etc. The Decomb help file gives some advice about how to handle these hybrid clips.

[DJ Alik]

this is what i did so far. I created 2 DVD2AVI projects one with forced film activated called film.d2v and the other with forced film deactivated called ntsc.d2v then I created 4 following avs files:

clip1.avs

LoadPlugin("C:\PROGRA~1\GORDIA~1\mpeg2dec3.dll")
mpeg2source("C:\Ready 2 Burn\film.d2v")
trim(649,90452)

clip2.avs

LoadPlugin("C:\PROGRA~1\GORDIA~1\mpeg2dec3.dll")
LoadPlugin("C:\PROGRA~1\GORDIA~1\decomb.dll")
mpeg2source("C:\Ready 2 Burn\ntsc.d2v")
trim(113066,147960)
Telecide(guide=1).Decimate(5)

clip3.avs

LoadPlugin("C:\PROGRA~1\GORDIA~1\mpeg2dec3.dll")
mpeg2source("C:\Ready 2 Burn\film.d2v")
trim(118369,142860)

Snatch.avs

# PLUGINS
LoadPlugin("C:\PROGRA~1\GORDIA~1\mpeg2dec3.dll")
LoadPlugin("C:\PROGRA~1\GORDIA~1\decomb.dll")
#
# SOURCE
clip1=import("C:\Ready 2 Burn\clip1.avs")
clip2=import("C:\Ready 2 Burn\clip2.avs")
clip3=import("C:\Ready 2 Burn\clip3.avs")
total=clip1+clip2+clip3
#
# CROPPING
total.crop(6,6,706,460)
#
# RESIZING
LanczosResize(704,378)


I openeded Snatch.avs in VDUBMOD and it looks like this method would work. Anyone has any suggestions/improvements to this method?

[digitalman]

I used a simple script line with Jay and Silent Bob Strike Back:
DVD2AVI at 23.976

FieldDeinterlace(Full=False)

The first layer of the movie is film, the second layer interlaced NTSC. Luckily I did not have any sound sync issues. I do not know what the reasoning is behind a DVD being done like this. Even just watching the movie straight off the DVD you definitely see the change in quality when the second layer kicks in.

[Awatef]

@ DJ Alik
Just make one single script:

...
mpeg2source("ntsc.d2v")
telecide(post=false,guide=1)
decimate()
...

SuperBit DVD with interlaced parts?! what the heck is going here??!! are they crazy?!