Interlace Pattern Question
by KurtisHough
on
Nov 22, 2006 at 5:58:47 pm
I'm trying to fix a 30fps quicktime video clip with an interlacing problem. I separated the fields and it appears Lower Field may be best, but the Remove Pulldown doesn't have the pattern of my interlacing. This video pattern is SWSWSWSWWWWWWWW. How can I get aftereffects to use this pattern to fix my interlaced fields?
Re: Interlace Pattern Question by Steve Roberts on Nov 22, 2006 at 6:04:05 pm
If the clip is an assembly of other clips, it may be a mix of pulldown cadences. It actually sounds as if you have a mix of interlaced and progressive material.
You may have to cut the clip in an NLE, then import and interpret each clip separately.
Or ... you could try duplicating the assembly in the project window, then interpreting each copy differently, but that's a pain to keep organized.
I'd cut the clips in an NLE, then import and interpret.
Re: Interlace Pattern Question by Steve Roberts on Nov 22, 2006 at 7:50:09 pm
If the clip has any cuts in it (interruptions), then you should consider bringing it into Final Cut Pro (or another editing system) to cut it up into unbroken clips.
Where did the clip come from?
Is it all raw footage out of one camera?
If so, what kind of camera?
Or is it one clip of a bunch of film sequences strung together?
Or are they mixed film and video?
Re: Interlace Pattern Question by KurtisHough on Nov 22, 2006 at 8:10:32 pm
Well the origin is rather complicated. This is a 1910s film I got from the libray of congress. I bought a video to DVD-R transfer from them. This DVD I converted to quicktime on my friends Mac. That transfer is when the interlacing problems occur.
Right now I'd like to try to convert the DVD again on my own PC. What programs are good at doing this?
Re: Interlace Pattern Question by Steve Roberts on Nov 22, 2006 at 9:46:22 pm
Holy COW.
You might need DVD-ripping software for the PC. If you Google that, you should find something.
AE can only sucessfully remove pulldown from a clip that has the same pulldown throughout, that is, was telecined in one go. If the clip consists of various shots that were telecined then edited together, you need to separate those clips in an editing app (or even Quicktime) before importing into AE.
Your clip may not even have been shot at 24 -- maybe 16 fps. You may be out of luck, having to work with the clip without removing pulldown -- I cannot say.
Re: Interlace Pattern Question by Dave LaRonde on Nov 22, 2006 at 8:04:29 pm
The term "NLE" means NonLinear Editior. You know, editing software. I presume yours can split a given clip into two sections, one where there's interlacing and one where there's not. Then you export the two sections separately from the NLE for use in AE.
And how DID you find out about interlacing when you're unfamiliar with the process described above? This is interesting.....
