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Quicktime Playback Problems – ProRes 422
Hello,
I’m experiencing a really peculiar issue with the playback of some ProRes422 footage. Here’s the background.
It is video & audio shot on a 7D imported as ProRes422. It’s 1920×1280 23.98fps. The footage plays back perfectly in Final Cut Pro. The Audio is in sync with the video and all is well.
The problem happens when I export a QuickTime self-contained or reference file. I open the video from the finder in quicktime and the frames do not match the audio. It appears to be out of sync or drifting. If I shrink the playback size of the video to 50% or 25%- it plays spot on perfectly.
So it’s my system right? I try a different user account. Same Problem. I copy and play the file off of the other three drives in this computer, still doesn’t work. I move the same self-contained file to a neighboring computer that has the EXACT SAME hardware specs right next to me. It play perfectly at 100% resolution there. So that seems to eliminate any thought of my hardware limiting the playback.
I thought of reinstalling Final Cut Studio.. but the video plays great when its in FCP. It’s the quicktime that chokes.
Are there some QuickTimeX settings or Preferences that I could trash? Some QT think to reinstall? Maybe a reinstall of FCS3 would reinstall some QTX components that are corrupted?
What other information can I provide to help a solution come from this?
Thanks for your attention,
Ross A. Hendrickson
Editor, Producer, Cinematographer
rosshendrickson-at-mac-dot-comSPECS:
Final Cut Studio 3, OS 10.6.3 (all current updates run)
2×2.66 GHz Dual-Core Xeon, 7GB RAM, NVIDIA GeForce 7300 GT -
7 Replies
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What type of hard drive(s) are you using as your media drive drive?
David Roth Weiss
Director/Editor/Colorist
David Weiss Productions, Inc.
Los AngelesPOST-PRODUCTION WITHOUT THE USUAL INSANITY ™
EPK Colorist – UP IN THE AIR – nominated for six academy awards
A forum host of Creative COW’s Apple Final Cut Pro, Business & Marketing, Indie Film & Documentary, and Film History & Appreciations forums.
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The computer has four 500GB internal SAS 3Gigabit drives. Formatted as Mac OS Extended (Journaled)
They are listed as “Intel ESB2 AHCI” Hitachi drives.
I have attempted to play the self-contained video off of each of these drives independently.
-Ross
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Quicktime is part of the OS so reinstalling FCS is not likely to make any difference. Have you done the usual drive maintenance (repairing permsissions)?
Personally I haven’t had any issues with QTX but you might try installing QT7.
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Yes, a bit of maintenance.
Run the AJA System Test to check your HDs speed.
Permissions, DiskWarrior,..
rafael -
Is real-time playback of HD ProRes guaranteed from Quicktime? Final Cut has its ways of making it happen, but does Quicktime alone? If the computer can’t decode and display all those HD pixels fast enough, you will have frames dropping and all sorts of havoc with sync.
My guess is that Quicktime alone does not have the power to play that content at full frame rate and that this is normal operation.
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[Tom Brooks] “My guess is that Quicktime alone does not have the power to play that content at full frame rate and that this is normal operation. “
Tom is right, Quicktime player cannot be relied upon for playback at speed.
David Roth Weiss
Director/Editor/Colorist
David Weiss Productions, Inc.
Los AngelesPOST-PRODUCTION WITHOUT THE USUAL INSANITY ™
EPK Colorist – UP IN THE AIR – nominated for six academy awards
A forum host of Creative COW’s Apple Final Cut Pro, Business & Marketing, Indie Film & Documentary, and Film History & Appreciations forums.
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Hey All,
I appreciate all the good feedback.
I will run the Permissions, speed checks and Disk Warrior when I return on Monday. It seems that those could be an issue given the age of the drives.Re: Tom & David–
Your statements make sense that QT maybe just can’t hack it. My one reservation of accepting that is my neighboring computer with the same hardware specs is able to successfully play that same video back w/o dropping any frames. Literally, the machines are identical and the other computer can play back without any problem.
Thanks again, everyone.
Ross Hendrickson
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