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29.97 to 23.98 fps
Ok guys, I have a problem. A friend of mine gave me a project to do VFX for. The problem is, they never told me what FPS they used to film. They used the codec DVCPROp60 which has a native resolution at 29.97. I didnt think anything of it and used what they did. I gave them back the film and they need it in 24….I imported the project into AE as a 29.97 did all the VFX at 29.97, exported at 29.97….you get the idea. Is there a way to bring this back to 23.98 without having to redo the entire project? I tryed changing the comp settings to 24 and I would have assusmed that should have fixed it. It looked fine in the render window, but when I played it on QT it was half the lenght of the film and all white. I dont know what to do!?!?
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11 Replies
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Try the interpret footage dialogue. I think its under File> Interpret footage. Also, I maybe naive on this but why can’t you drop it into a render comp that has the settings that you desire and render that out. I’d look in the after effects literature on the interpret footage. Not sure if this will help. Also quicktime can be a little finicky sometimes… do you have the latest version… have you tried playing it back in something else… blah blah..
good luck.
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Another thing… which format are you exporting your video as and which codec are you using?
Another thought:
The problem (in my case) was related to the DirectDraw (DirectX) acceleration. In the QT preference tab, I turn those off and used the GDI method instead.
I had trouble viewing the H.264 format until I got the latest update for quicktime.
cheers
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Yeah I have all of the latest updates for QT, once rendered I also was unable to even see the video played back in AE. It for some reason also cut the source footage in half (its a 40 min film that now has 20 min…). I then looked at the (get info) that QT provides and it said that the FPS is now -1973.03????? Im trying the drop the comp into another comp to see if this fixes the problem. If this doesnt work Ill try the interpret footage option. I am using the DVCPRO HD 60p codec.
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you may be able to recover from this… but it will depend largely on the footage they gave you. you said dvcprop60, which would be 60 progressive frames at a frames rate of 59.94. you said the footage was showing a frame rate of 29.97. so i’m a little confused as to what you actually have, but i’m going to assume you have 29.97 interlaced, that had a pulldown added to bring a 24p project up to broadcast frame rates.
if that is the case, and everything was done correctly before the footage came to you, you should be able to tell ae to interpret footage as 29.97 interlaced (lower field) and remove pulldown (guess order should work). now in you comp you need to set the frame rate to 23.976.
this should work in most cases, but with a wide misunderstanding of 24p workflows (and possible dvcpro codec issues), i won’t guarantee anything.
Kevin Camp
Designer – KCPQ, KMYQ & KRCW -
Thanks guys Ill try this. The camera used was a HVX200, they filmed in 24 FPS with a resolution of 1280×720. They used the DVCPRO HD 60p codec. This is what I thought was odd. In AE7, when you click on the codec it automatically sets a FPS to 29.97. You have to manually set the FPS to 24. I just assumed they shot in 29.97 since they made no mention of filming in 24…..I am actually working on a MAC that has Final Cut. Another odd thing, since the finished render has been playing back white once completed. I noticed that if I let it render for a few min then stop the render, I have absolutly no problem playing back. Hopefully your ideas will fix this. Thanks
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are you working with the original p2 files in fcp, and using fcp to transcode the p2/mxf files to quicktime dvcprohd?
Kevin Camp
Designer – KCPQ, KMYQ & KRCW -
No, a QT of the edited film was given to me. It should have been as simple as import>workflow>export, done…
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Ok this I cannot explain…..I went into the comp settings and changed the comp FPS to 23.98 or 24. Then when I render out the entire movie out at 24 it plays back white. BUT! When I render out JUST the clips of what I worked on and not the entire film. They all play back fine with a FPS of 23.98?!?!? Am I losing my mind or why is this happening?
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Ok this I cannot explain…..I went into the comp settings and changed the comp FPS to 23.98 or 24. Then when I render out the entire movie out at 24 it plays back white. BUT! When I render out JUST the clips of what I worked on and not the entire film. They all play back fine with a FPS of 23.98?!?!? Am I losing my mind or why is this happening?
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this is sounding pretty odd…
i’ve worked with p2 footage from hvx’s that were transcoded to qt dvcpro via fcp and avid many times, and i haven’t seen ae misinterpret the qt mov. are you sure you can’t see any interlacing?
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