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KGCore crash corrupted ProRes 422 HQ file during capture
FCP has been getting unstable lately (probably due to this setup being relatively old and crufty) and I’m in need of a reinstall. However, since I’m in the middle of a project and can’t afford the downtime, I was wondering if you guys might be able to help me fix a seemingly corrupted file.
Two times while I was using Capture Now to get footage from live videogame play, I went to hit Esc to stop capturing and FCP crashed with the message “This crash may have been caused by the KGCore plugin” (or something to that effect). When I opened FCP back up and went to play the files that were in-capture at the time, they played, but at 640 x 360 resolution (half of the actual capture resolution of 1280 x 720). Obviously it’s not like FCP is laying down half-res ProRes 422 HQ during capture and then somehow stores the rest of the data when capture stops. QuickTime even shows the bitrate as being correct in the corrupted files, so I’m wondering if there’s something I can do to fix them. Surely the data must be there, there’s just some other corrupted metadata or some-such in the QuickTime container. I know that ProRes specifically supports 1/2-by-1/2 resolution decoding as a feature of the codec, so perhaps the corruption is causing the codec to decode that way all the time? Seems to me there must be SOME way to correct this.
Maybe not, but I figured it was worth asking. Only two clips out of 40 have this issue, but one of them was a really great clip, and might be difficult to get again. So if there’s any chance of saving this file I’d love to hear about it.
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5 Replies
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Try searching here for KGCore. Grab a strong cup of coffee or better yet a glass of whiskey, sit back and read.
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I saw the thread and solution, but I’m less concerned about fixing the crash (which is still infrequent) and MORE concerned with whether or not there’s a way to fix the QuickTime files that have the half-res decoding problem.
I’ll give clearing out the thumbnail cache and rebuilding my project from XMLs a shot to avoid the crash in the future, but do you have any ideas on the two files that I’d like to repair?
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[Matt Killmon] “MORE concerned with whether or not there’s a way to fix the QuickTime files that have the half-res decoding problem.”
If they are half res now, there’s no saving them. You will have to recapture.
Jeremy
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The data’s still there though, it’s got to be a metadata or flagging problem. In fact, when I run the files through JES Deinterlacer, it decodes them out (mostly) properly (not half-res). There’ just a slight border around the edges.
The main reason I can’t re-capture the same clip exactly is because it’s live capture from gameplay, not from a recorded tape. There’s a great shot in here that I’d like to salvage.
Oh well, I’ll just keep messing around with JES or other apps and seeing if I can retrieve the shot. Thanks anyway.
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[Matt Killmon] “The data’s still there though,”
In some form not what it’s supposed to be.
[Matt Killmon] “There’ just a slight border around the edges.”
Yeah, so it’s not all the way there.
[Matt Killmon] “The main reason I can’t re-capture the same clip exactly is because it’s live capture from gameplay, not from a recorded tape.”
I hear you. Been there done it. if you do this often, I’d suggest getting a KiPro. Wicked easy.
[Matt Killmon] “Oh well, I’ll just keep messing around with JES or other apps and seeing if I can retrieve the shot. “
Good luck, just know you are dealing with a pretty corrupt file.
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