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Quicklook no longer previewing Quicktime videos encoded in ProRes or Animation codec.

I noticed that after upgrading to OS X Mavericks that I am no longer able to quicklook preview (pressing the space bar when selecting a video file) within Finder.


This is a HUGE drawback for me as a video editor because I now have to open videos in VLC in order to quickly preview dailies.


I've noticed this happens specifically with Quicktime MOVs encoded in ProRes422 and Animation.

Mac Pro, OS X Mavericks (10.9)

Posted on Oct 30, 2013 1:41 PM

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7 replies

Oct 30, 2013 2:31 PM in response to buttersthaatsme

I noticed that after upgrading to OS X Mavericks that I am no longer able to quicklook preview (pressing the space bar when selecting a video file) within Finder.


This is a HUGE drawback for me as a video editor because I now have to open videos in VLC in order to quickly preview dailies.


I've noticed this happens specifically with Quicktime MOVs encoded in ProRes422 and Animation.

QL under Mavericks does not seem to like the Animation or PNG video codecs at all but I have sample ProRes422HQ files that do play in QL preview depending on the active audio track. (E.g., QL does not seem to like an active AC3 audio track but seems okay with PCM or AAC audio and will play a file containing an active AAC audio track with inactive AC3 audio track.) In short, many of us are still mapping out how QT X and QL function under Mavericks and the new AV Foundation/QT Modernizer routines.


User uploaded file

Feb 25, 2014 2:43 PM in response to buttersthaatsme

This is a serious problem for our company. Anyone found a workable solution? Between this and the final cut debacle, I have spent a very substantial amount of time over the last year trying to figure out how to keep doing my job as Apple pulls the rug out from under us. We were an all final cut and all quicktime shop. Love Mavericks on my laptop for basic everyday stuff, but it's making my professional life pretty annoying.

Quicklook no longer previewing Quicktime videos encoded in ProRes or Animation codec.

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