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Re: Rendering Problems

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Re: Rendering Problems
by Dave LaRonde on Jun 18, 2008 at 3:27:31 pm

[Hugo Espinel] "It does not matter what kind of files it is dealing with. Same problem occurs with MPEGs or WMV files. "

It may very well matter what kinds of files AE is dealing with, especially those MPEGs. Read on to see if this common problem applies to you:


Dave's Stock Answer #1:

If the footage you imported into AE is any kind of the following -- Native HDV, MPEG1, MPEG2, mp4, m2t, H.261 or H.264 -- you need to convert it to a different codec.

These kinds of footage use temporal, or interframe compression. They have keyframes at regular intervals, containing complete frame information. However, the frames in between do NOT have complete information. Interframe codecs toss out duplicated information.

In order to maintain peak rendering efficiency, AE needs complete information for each and every frame. But because these kinds of footage contain only partial information, AE freaks out, resulting in a wide variety of problems.


Dave LaRonde
Sr. Promotion Producer
KCRG-TV (ABC) Cedar Rapids, IA


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