Mac OS 10.8.5 MacPro mid 2010 upgraded to 12 core 3.33Ghz 24GB of ram. Adobe CC 2014.
I usually leave parallel encoding on for Adobe Media Encoder and don't see much issue when making proressHQ and H.264 mp4 or H.264 .mov files at the same time.
Today I noticed while making files from an Avid QT ref file DNX 175X 10 channels of audio to a QT XDCam50 file along with a QT H.264 file that the XDCam 50 will process in about real time if done individually and the QT H.264 will take a bit over an hour. If I run parallel encoding the XDCam50 file takes close to an hour and the estimate for the QT H.264 jumps to around 3 hours. In the encoding window I can definitely see the H.264 is progressing much slower.
I usually find H.264 moves slower than prores files with AME but this is a much more drastic difference than I'm use to seeing. Usually with parallel encoding the overall time is close to the time of adding what the individual files would take. Today the H.264 seems to really want to chug much longer. I've decided to turn off parallel encoding for these files as then it backs the XDCam50 in about real time for the 43;40 of content and the H.264 in a little over an hour.
I did let one parallel encoding file finish the XDCam 50 in about an hour and I was hoping to see the estimate for the remainder of the H.264 file estimated time to drop way down from 3 hours but it didn't.
Curious if anyone has played around with AME to find out if certain pairings of codecs for export files tend to cause prolonged encoding times.
Another thing I've posted about before is that when I export my QT ref from Avid I have to check the RGB/Full Range setting. I'm on Avid 6.5.4 for this project to match offline systems. When I export with the RGB setting the resulting file comes back with proper Rec 709 levels when I ama to the resulting file. If I leave it set to Rec 709/legal level for the QT Ref export the file is low in level just like when a Rec 709 source is scaled down as if it were full range and needed to be brought down on import to Rec 709.
On my OS 10.9.5 startup drive with Adobe CC 2015 I use legal level export for my QT exports and they seem to work fine when I run them through AME 2015. Did something in Adobe CC 2014 change in Adobe CC 2015 in regard to Full Range vs. Legal Level? Just another reason I always try to use test patterns in a file.
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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