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Export problem when using Pre-Render files
Hi All
I think I may have discovered a bug.
If I make a ProRes sequence, render, and then try to export a movie using Previews, the export will not work if the sequence contains Bars & Tone or Black Video. I submitted a bug report to Adobe, but was wondering if anyone else has experienced this. Here are the steps to reproduce the problem:
1. Make a new sequence, but don’t choose a preset. Click the Setings tab, then Editing Mode: Custom, Preview File Format: Quicktime, Codec: Apple ProRes 422, 1920×1080
2. In your sequence, drop in Bars & Tone and/or Black Video
3. Render your sequence. (Mark in/out, Sequence menu >> Render In to Out
4. Export the sequence. Check “Match Sequence Settings”, and check the box that says “Use Previews”
Results: Export begins, but freezes up. Export never works.I’ve tried this on multiple systems, same problem no matter what. If I export a portion of the sequence that has ONLY footage or stills or titles, it works fine. But it will not export any portion of a sequence containing Bars & Tone or Black Video.
Please let me know if you can duplicate this problem, or if perhaps you see that I am doing something wrong.
thanks,
Mike -
2 Replies
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I reported this a few weeks ago:
https://forums.creativecow.net/readpost/3/942755
The workaround is to copy the contents of your sequence into a new, blank sequence that uses a non-ProRes codec (such as the default “I-frame Only MPEG”), then export to ProRes using that sequence, instead of the ProRes native one.
Yes, it’s a total drag to have to do it this way, as you’ll have to re-render everything upon export, but its the only workaround until adobe fixes this.
The other workaround is to replace all instances of Black Video with a selfcontained ProRes Quicktime file containing nothing but Black.
PLEASE submit a bugreport about this to Adobe, so it gets some attention by their engineers:
https://www.adobe.com/cfusion/mmform/index.cfm?name=wishform
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Hello Mel
Thanks for confirming the bug. I did submit a bug report myself, so hopefully Adobe will fix this in the next release.
Yes, I know I can render out to ProRes if I use a non-ProRes sequence and/or don’t use the preview files, and in fact before this latest version that was what I usually did. I was hoping with the new Pre-Render in Quicktime option I could save time on the final export by doing a lot of my rendering when taking a break, answering email, overnight, etc.
In the meantime, good idea on the workaround – I will try using movie files of the bars, tone and black instead of the built-in media.
Mike
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