Mailing List AE-List@media-motion.tv ? Message #47388
From: Jim Curtis <jpcurtis@me.com>
Subject: Re: [AE] looping player
Date: Tue, 15 Jan 2013 09:10:57 -0600
To: After Effects Mail List <AE-List@media-motion.tv>
You are correct about the uneven number of frames.  I animated a logo on a flag using Zaxwerks Flag 3.0.1.  They introduced a "seamless loop" function in version 3. It doesn't work as advertised.  Not for me so far, anyway.  

I spent about 5 hours trying to get my animation to loop perfectly, trying various loop points and durations.

I didn't get a seamless loop when I had my duration set to 10 sec. exactly, but I did have success making it 10:01 (at 29.97 fps).

So… back to the drawing board.  I'll try again making it 10:00 exactly.  Maybe I'll have better luck at a non-fractional frame rate, too.

Rick, thank you very much for the insight.


Jim




On Jan 15, 2013, at 9:00 AM, Rick Gerard wrote:

> I would bet that you've got an uneven number of frames. h.264 uses IBP
> frame sequences and your clip's length is probably off by a frame or
> two so the compression scheme is repeating a frame to make up the
> difference. You'll have to exactly match the IBP sequence to prevent
> the duplicate frame by shifting the length of your loop a frame at a
> time until it works. Someone may know the cadence of your compression
> scheme but Wikipedia was no help at all for me.
>
> There are other formats that will playback on a windows machine. You
> could try that or you can try shifting the loop point a frame at a
> time until you get to the right number of frames.
>
> +---End of message---+
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