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AE Keeps Jumping to Wrong Frame
This is making me nuts.
My clip keeps jumping to random wrong frames. As if a single frame from elsewhere in the clip was edited in.
I see it in the preview, and also in RAM preview. If I export, I see it in the new file.
AE correctly identifies the source clip as 29.97, I’ve tried conforming it to 29.97 anyway, same problem.
I’ve tried restarting, making a new comp, starting the entire session from scratch, and I get the same type of problem. The random unwanted edits are in new places, so I don’t think it’s a problem with the source footage, but who knows.
Any ideas?
Thanks.
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6 Replies
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sounds like either a RAM issue, or a problem with the video format and codec your using. Is it compressed video?
What is the specs on the video?
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Aharon Rabinowitz
arabinowitz(AT)yahoo(DOT)com
http://www.allbetsareoff.com—————————————-
Click the link below to subscribe to the Creative Cow After Effects Podcast, and get free AE video tutorials:https://phobos.apple.com/WebObjects/MZStore.woa/wa/viewPodcast?id=111087911
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Source video was ripped from a DVD into a VOB file, then renamed into a .mpg file. No compression. 720×480. 29.97.
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For the record – any video on a home theater DVD, by nature, is compressed. It has to be. even 3 minutes of uncompressed SD video will not fit on a 4.7 GB DVD. Period.
That means that a VOB file is compressed. That also means there are video keyframes. video Keyframes can cause all sorts of problems when brought into AE, I have found. Old frames seemed to be called up. I have seen this a lot in AE CS3 vs. AE 7, especially with MPEG files.
That said, it doesn’t actually sound like your problem – if it was the same frame being called up at the same time every time, it could be that, but it sounds like when you opened AE the 2nd time the frame being shown was different than the last time.
Still it;s possible you are hitting a video keyframe and AE is just filling it with garbage.
So, how about this – do you have a video editor, or a program that can convert you MPG file to quicktime with animation compression (lossless) or AVI uncompressed. Just do a test and see if this solves your issue. If it does, you’ll have to work around that MPG format.
—————————————-
Aharon Rabinowitz
arabinowitz(AT)yahoo(DOT)com
http://www.allbetsareoff.com—————————————-
Click the link below to subscribe to the Creative Cow After Effects Podcast, and get free AE video tutorials:https://phobos.apple.com/WebObjects/MZStore.woa/wa/viewPodcast?id=111087911
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That’s a good idea, can you suggest a converter program that might be able to do it? Final Cut Pro won’t import the file, nor will IMovie.
I have EasyWMV, which works, but it dropped frames, and changed the framerate, so it’s fired.
I’m Mac OSX.
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well, that should already tell you that somethings not right with the file.
Bink might help you convert to a different format:
https://radgametools.com/bnkdown.htm
I haven’t used Bink in a long time, so I don’t know if it will help, but it might. You can use it to convert one video format to another, though I don’t know the limitations on that.
It’s free, BTW.
—————————————-
Aharon Rabinowitz
arabinowitz(AT)yahoo(DOT)com
http://www.allbetsareoff.com—————————————-
Click the link below to subscribe to the Creative Cow After Effects Podcast, and get free AE video tutorials:https://phobos.apple.com/WebObjects/MZStore.woa/wa/viewPodcast?id=111087911
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Thanks for the help. I ended up re-ripping the source footage using handbrake instead of MacTheRipper. Handbrake can make avi instead of the VOB file. That solved it, so the problem was indeed something with the VOB file.
I’ll check out Bink.
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