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HDV to ProRes Thumbnail Problems
I posted this last week but it was buried before I could place an image of the thumbnail.
I’ve noticed that the thumbnails FCP produces from HDV footage transcoded to ProRes are skewed. Almost looks like out of sync video, intensified.
Has anyone else seen this problem? Any Ideas on what could be causing this? I have tried to fix by dumping the thumbnail cache, but that didn’t work.
The edit system is a MacPro Core-Duo running Snow Leopard, FCS3, AJA KONA3
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6 Replies
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Thumbnails default to being the first frame of the file. Are the first frames the only ones that look like this? I’ve never seen this problem with HDV material FWIW, so not sure what the problem is. That said, you can reassign the “Poster frame” which will allow you to select a frame that you can actually make out if only the first frames are skewed like this and there’s no real problem otherwise. Just open a clip and park the playhead on a different frame, then type cnt+p.
Jerry
Apple Certified Trainer, Producer, Writer, Director Editor, Gun for Hire and other things. I ski. My Blog: https://blogs.creativecow.net/Jerry-Hofmann
8-Core 3.0 Intel Mac Pro, Dual 2 gig G5, AJA Kona SD, AJA Kona 2, Huge Systems Array UL3D, AJA Io HD, 17″ MBP, Matrox MXO2 with MAX Cinema Displays
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The first frames of the clips are all fine. After reassigning poster frames the thumbs are still look skewed.
I’ve looked at all the thumbs since we upgraded our system and every HDV to ProRes thumb looks like this.
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This sounds like a glitch in the software setup you’ve got going there. It’s not a bug per se or we’d all be seeing the problem.
If trashing thumbnails and FCP prefs doesn’t help this what’s left to do is a reinstall probably.
Jerry
Apple Certified Trainer, Producer, Writer, Director Editor, Gun for Hire and other things. I ski. My Blog: https://blogs.creativecow.net/Jerry-Hofmann
8-Core 3.0 Intel Mac Pro, Dual 2 gig G5, AJA Kona SD, AJA Kona 2, Huge Systems Array UL3D, AJA Io HD, 17″ MBP, Matrox MXO2 with MAX Cinema Displays
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I’ve ben trying to avoid the worst case scenario. I’ve been having problems with compressor since we upgraded as well. We had a VAR do our upgrade and it looks like we are in for a support call.
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Any time you upgrade to a new OS, or version of Final Cut, you really should do a “Clean” install. Meaning build a new startup disk. OS, Apps, drivers, all of it. If that wasn’t done, it could be the problem, but if it is done, and the problem persists, it’s hardware related. It’s the only way to rule out a software install that’s corrupt.
Takes about 6 hours unless you make disk images of FCS. That cuts the time down a lot. But they take hours to make. But very useful later.
But just for kicks… reseat the graphics card if trashing prefs is a no go.
Can definitely say it’s not a setting. LOL… Yeah, Please make my thumbnails go bad… Hang in there.
Jerry
Apple Certified Trainer, Producer, Writer, Director Editor, Gun for Hire and other things. I ski. My Blog: https://blogs.creativecow.net/Jerry-Hofmann
8-Core 3.0 Intel Mac Pro, Dual 2 gig G5, AJA Kona SD, AJA Kona 2, Huge Systems Array UL3D, AJA Io HD, 17″ MBP, Matrox MXO2 with MAX Cinema Displays
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i suppose it´s a bit late for a reply but i`ve had the same problem on my system & noticed that the strange “skewed” thumbnails disappear if you deinterlace the source material, i.e : 1080i to prores 1080p through mpeg streamclip or some other converter.
regards
chris
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