I posted about this a while back where I got a sequence that a matte key graphic had been imported at DNxHR Uncompressed, or whatever the actual nomenclature is, and it wouldn't let me export a QTRef. I re imported the graphic with alpha as DNxHR and then I could export a QT Reference. Today I'm on a different project where I imported Keyable graphics that were ProRes 4444. Upon importing I converted them to DNxHR HQX but when I try to do a QT Ref export with the track with the matte key graphic I get the same message.
Here is the message, "Some Long GOP or DNxUncompressed media can not be exported using QuickTime Reference. You need to export the media as a custom QuickTime Movie."
In this case this was a keyable element I imported myself. I tried to look at the fill and alpha tracks to see if perhaps the Alpha track was uncompressed but it show DNxHR. If I make a video mixdown of the graphic area and cut it above the graphics I stll get the error if the track is highlighted/selected during export, my QT export has use selected tracks checked, but if I deselect the track, in this case V7, and select V8 where the mixdown I made is the export works. I get why that works but why is the matte key element that was imported to DNxHRHQX being seen as long gop or more likely uncompressed.
MC 2018.12.7 MacPro mid 2010 upgraded to 12core 3.33GHz, Mac OS 10.12.6, GTX-680, NitrisDX, 32GB Ram. Project is 23.976 Rec 709 DCI 4096_2160.
John Moore Barking Trout Productions Studio City, CA bigfish@pacbell.net
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Posted by: John Moore <bigfish@pacbell.net>
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this is the Avid-L2
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