> But according to the article the Avid export check box for 601/709 or RGB is
> concerning the source materials levels not the exported QT levels.
> According
> to the article checking rgb on Avid export tells the export to take the 0-255
> levels and bring them into 16-235 space so the resulting QT has 601/709 level.
That part of the article is about when using the Avid Quicktime codec (in QT
Pro or AE) to _encode_ into DNxHD. That's the equivalent of the Avid
_import_ settings.
Just like I wrote in one of the later paragraphs.
> Is anything really happening to the "essence" of the
> QT or is it setting metadata flags on how to interpret the footage?
OK the Avid codec is meant to work in 601/709. When you ENCODE into DNxHD,
whether through QT Pro, MetaFuze, or by importing into Avid, the result is
meant to have 601/709 levels. You need to tell the encoder if the SOURCE is
0-255 or 16-235.
A simple way to look at it:
The Avid IMPORT / ENCODING MODULE (import in Avid, Export in QT Pro), asks
you:
We are going to create some 601/709 Avid media. We need to know what your
source is so we can either maintain the levels (601/709) or remap the levels
from 0-255 to 16-235?
However, we were not talking about IMPORTING or ENCODING to DNxHD, but about
EXPORTING from the Avid. When you EXPORT from the Avid application, the
module asks you:
We are going to export this 601/709 Avid media into something else. Do you
need the export to maintain levels (601/709) or do you need the levels
remapped (to 0-255)?
--
Job ter Burg
film editor - NL
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