-
Problem with After Effects 6.5 and BM 10bit RGB Codec?
I’m uprezzing some 10bit YUV clips as rendered movies then bringing them back into After Effects for compositing. I render out the clip and it looks fine. Then when I bring it back in, there are frame freeze problems as soon as I drop it in a timeline. It’s a 23.98 clips, that I’m dropping on a 23.98 timeline. Why would the video have a couple frozen/double frames per second! I’ve tried everything and double checked all my frame rates. Does AE 6.5 have trouble working with the Blackmagic 10bit RGB codec?
-sean
-
4 Replies
-
Is your project timebase 24? (project settings)
Have you tried dragging the footage onto the “new comp” button in the project window?… and no, AE has no trouble with BM footage, as long as the codec is installed on the system.
-
Yes. it’s 24fps timebase. I tried dragging the clip onto the new comp button. and it repeats at the same frames. one instance mysteriously resolved yesterday, but now it’s appeared again with a new clip. could there be a problem with using 23.98 as my frame rate. should it be 23.976? does AE see a difference between them?
-sean
-
Hm. One frame per second difference is 24 vs. 25, not 23.98 vs. 23.976. I smell PAL, but I also have a cold. 🙂
So what is the history of these clips, from live scene to now? Which camera was used? Which format? What about pulldown? Captured in what? Sequence frame rate in the capturing NLE? Which apps did the clips pass through in their history, and what was done to them?
-
I shot 720p 23.98 uncompressed 10bit 4:2:2 Varicam direct to disk. I have about 15 or so shots that need compositing. So, I uprezzed the clips to 1080p 23.98 Blackmagic 10bit RGB using After Effects and Algolith. I analyze the clips (23.98 1080p …everything is right). I watch the clip in Quicktime where a curtain rises. Everyframe has a change as the curtain rises. But when I make a new composition and drop that clip in AE things get weird. i compare the original composition with the rendered clip frame for frame. I counted 8 frames that repeated during one second of the rendered clip, but they still kept in time and matched up at the end of the second. Also, my uprezzed clips have a different icon. There’s a little set of RGB triangles in the bottom right hand corner of the quicktime icon. I assume that means it’s a BM 10bit RGB clip. Now here’s something I just discovered… One clip that I re-rendered it’s uprez at 23.976 states it’s speed in AE as being 23.976 and it’s the only clip that’s not repeating frames. Maybe I can make this clear up the problem, but that means another day of rendering the uprezz files and I’m running out of time. It’s quite disconcerting that Apple is so unspecific about 23.976, and AE makes a clear differenciation
Reply to this Discussion! Login or Sign Up