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Encoding 24p QuickTimes from Image Sequences
Hi All
Currently offline editing an independently produced 3D animated feature. The final renders are coming from Compositing as Tiff image sequences via After Effects.
Workflow-wise the final delivery is to film. For the “offline” edit I am converting the Tiff image sequences to Pro Res 422 HQ QuickTimes. Working in 1280×720 res @ 24pfs.
My issue is that Compositing has been working in 30 fps and 25 fps AE projects when bringing all the elements together. So when I bring their rendered image sequences in from these projects into Compressor and encode them out as the Pro Res 24pfs QuickTimes I am getting a troubling result.
As an example, I have a shot that is 264 frame duration. At 211 frames into the shot frame 264 is displaying and holds for the remaining 53 frames of the shot. FYI this is the last 1/5th of the shot and is a consistent result across all shots.
So essentially the QuickTime’s total shot length is as it should be, 11 seconds @ 24pfs, however there is the issue that the entire animation in the shot starts and ends exactly 80% into the shot, with a repeat of the last frame of the animation for the last 20% of the shot.
I am thinking that there is some metadata stored in the Tiff image sequences that is causing Compressor to “misinterpret” for want of a better term what I am wanting to do there.
So I have performed some tests including selecting “so source frames play at 24fps” in the Inspector in Frame Controls – but no luck. With QT 7 I can import the image sequence and export it as a 24 pfs movie and it works flawlessly so there is either a bug in Compressor or I am missing a setting which I am hoping for another opinion/s on?
Any immediate assistance or advice is greatly appreciated.
BTW unfortunately we don’t really have the luxury of Compositing reformatting their projects and re-exporting their image sequences, if indeed this is the possible cause of the issue.
Mitch
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3 Replies
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[Caine Mitchell] “My issue is that Compositing has been working in 30 fps and 25 fps AE projects when bringing all the elements together.”
thats the issue.
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Hi Chris and Dave
Yes doomed from the start is exactly what I thought.
FYI I’ve only come on this project in the last few days so these bad decisions were made well in advance before I arrived. I would have thought this was a no brainer to work in all areas of production at the same frame rate that the project would be delivered, but alas they have not.
Well I’ll put the decision on what to do next to the powers that be. Ideally all compositing projects reformatted to 24psf, re-rendered and re-delivered to me, as with the consensus here.
Thanks for the confirmation, it obviously helps my case to argue the above.
Best regards.
Mitch
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Do you really think I should, I wouldn’t want their heads to explode 😉
Thanks again Dave.Mitch
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