convert to 24p virtualdub

[stannmaple]

Is it possible to convert from 60i to 24p using only virtualdub? Thanks
Dann

[foxyshadis]

Sure, IVTC works in vdub. You can use the built-in pulldown, if you're a masochist, or Telecide/Decimate (http://neuron2.net/mine.html). (Virtualdub versions on the bottom.)

[stannmaple]

Hey, Thanks for the response. Unfortunately, I'm ridiculously new to all this and I have no idea what IVTC means, or how to use the built in pulldown. I tried converting my 60i material to 24fps while also using the smart deinterlacer, but it came out unbelievably choppy which made me think I did something wrong. I see the filters that you linked to (telecide and Decimate) but even after reading about them, I honestly have no idea what they do. I'm really new at this and I'm sorry I don't understand it. If you wouldn't mind giving me a quick rundown of the process I would use (if that's even possible) it would be much appreciated. Thanks again for the help. I really do appreciate it and I'm sure if I had more experience with this stuff, it would make sense to me. Thanks in advance for understanding that I'm new to all this.
Dann

[foxyshadis]

Since it's been written about before, I'll just link a basic primer on the topic: http://www.doom9.org/ivtc-tut.htm

It's been a long time since that was written and the state of the art has advanced considerably (in avisynth, vdub gets no love), especially in relation to top-quality deinterlacing and hybrid handling, but it's still a well-written introduction.

[Blue_MiSfit]

Well, it all sort of depends on whether or not your material is true 24p.

If you're talking about taking true 60i material (DV maybe) and converting it to 24p to get that film look, then the Alchemist thread in the AviSynth forum is the place to be!

If you are working with a 24p source that has pulldown to 60i, then any number of field matchers and decimators can return the original 24p. I like TFM/TDecimate.

These are all AviSynth workflows though... I'm sure it's possible with VirtualDub, but why? :)

~MiSfit

[stannmaple]

Hey guys,
Thanks for the help. It's much appreciated. I hadn't found that link before, so that looks like some good reading. I'll check it out.
As far as why I'd like to use virtualdub, is because I actually understand it. (at least a basic level.) I've looked into avisynth and it looks like it takes a genius to operate it. I've successfully done a few very very basic scripts, but most of those were with others helping me. I guess I just don't see how I could ever learn all that code and make sense of it all. I was hoping there was an easy solution in virtualdub since it's got the GUI and it seems all around a lot less complicated. Thanks again for the help. I really appreciate it.

[Blue_MiSfit]

AviSynth can be complicated, but you don't have to learn a lot all at once :)

Removing pulldown on a 24p source encoded at 29.97i is as simple as this:

MPEG2Source("foo.d2v")
TFM().TDecimate()


Just out of curiousity, how are you getting your source into VirtualDub presently?

~MISfit

[stannmaple]

Hey Blue_MiSfit,
I'm getting my source into virtualdub by opening the program, then going to open file. It is a DV stream.
Dann