My understanding with an ama link to file on my mac sndx 5.5.4 OS 10.6.8 is that if the set source settings are on "Do Not Modify Level" then when I look at the clip in Avid I am seeing the actual level of the video essence. I've also read that the ama link bypasses the QT engine so the problematic gamma shifts etc... are not an issue as long as perian and a few other pieces of software aren't installed. Today I have a bars and tone clip that comes back into avid through ama link low in level when set do not modify levels. If I set to "expand to graphics level" the bars appear correct. To me this means the video essence is low level in the file. If it was a 601/709 file do not modify should ama in at correct level. The fact that I have to expand to graphics level to get proper level implies that the actual video levels are below the 16-235 levels. I did not make this file but it was done from an Avid project export through QT Pro, at least that's what I think they did.
When I export QT ref to QT Pro and bake a file to ProRes HQ it comes back to avid ama'd as do not modify levels and the bars are at correct level. Am I correct to assume this file that I'm seeing the odd level behavior is really somehow at a lower than 601/709 level? Is there something in the ama food chain with prores hq files that could be leading to a misinterpretation of the actual video essence levels in the file using an ama link to file?
John Moore
Barking Trout Productions
Studio City, CA
bigfish@pacbell.net
Barking Trout Productions
Studio City, CA
bigfish@pacbell.net
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