Re: [Openexr-devel] KeyKodes (a recap)

[Florian Kainz]

Tom Dilligan wrote:

> Things I'm not clear on:
>
>    In the KeyCode structure: The perfOffset is in perforations or in
>    frames? I think that it should be in perfs, I've observed that cineon
>    files store the perfOffset in frames, and dpx files store perfOffset
>    in perfs. If the cineon convention is chosen an additional field will
>    need to be used to denote the perf offset to the actually align
>    the images.

According to the Kodak document posted by Thomas Kumlehn
(http://www.kodak.com/US/plugins/acrobat/en/motion/postProduction/keykode/35mm.pdf),
the offset appears tobe in perforations.  The document explains that
EASTMAN KEYKODE Numbers include "the 10-digit key number, manufacturer
identification code, film type and offset in perforations."

Florian