1080i 24PA

[Noah Kadner]

Deja vu:

https://forums.creativecow.net/cgi-bin/new_read_post.cgi?forumid=193&postid=857696

-Noah

[Tim Martin]

Noah,

I had read that entire thread. That’s why I asked for “clear” instructions.

Tim

[Noah Kadner]

Well the conclusion I draw from that thread is that it’s not possible yet to resolve 1080 24pA to 23.98 as FCP nor Avid have not been updated yet. So the clear instructions are- wait.

Noah

[Jan Crittenden livingston]

Hi,

What I see is that the FCP is not able to do the 24PA removal even with Cinema Tools, but take a look at DVFilm.com. Marcus VanBavel has done it again. For those of you that don’t remember, Marcus was the first to exract 24 frames from 24PA when we brought out the DVX100. He is now the first to do it on the DV100 footage.

I do believe it will be included with some future release from Apple and others but just not today. So if you ask me, if you need to extract the 24P and edit in a 24P tmeline, check out DVFilm. If you can deal with editing the 24P capture in a 60i time line then shoot 24P and not 24PA.

Hope that helps,

Jan

Jan Crittenden Livingston
Product Manager, DVCPRO, DVCPRO50, AG-DVX100
Panasonic Broadcast & TV Systems

[Tim Martin]

Jan,

Thanks for the info about DVFilm. Waiting to here back from Marcus. Will let everyone know how it goes?

Tim

[John Pilgrim]

OK,
I think we have a solution. Adam Wilt was very helpful over on the SF Cutters mailing list and provided a useable process.

He said that when you select the F1-only mode in CineTools’ Remove 2:3 Pulldown, it effectively does a 2:3:3:2 pulldown removal, not a 2:3 pulldown removal.

I tested it with footage from the HVX as well as test clips I made in After Effects. This method with CineTools correctly transfered both even and odd fields, despite being called F1-only. Just to be sure, I compared still frames from the original and the CineTools processed footage using a difference blending mode in Photoshop and they were identical for a set of A,B,C, and D frames from the 2:3:3:2 cadence. No evidence of recompression either.

The one downside is that CineTools produces a file that the Finder shows to be 640×360, but both QT Player and FCP show to be
1920×1080. It’s a minor annoyance.

After Effects still treats the file produced by CineTools like it is really 640×360, which makes it unusable there due to pixelation when you scale it up. Fortunately AE’s Interpret Footage command does correctly remove 24pA pulldown, so the original 1080i24pA files from the HVX can be used in AE directly without having to use CineTools.

Hope this helps and thanks again to Adam for his expertise.
John