AE Error

[Nejc]

Yo!

I've got a problem, so I thought a nice place to ask for solution or a reason why the problem is occouring, is here.

Well, it's like this: I'm working on a small beta with Bleach (just to practice flow and such), beacuse when I get all of Naruto episodes I'm gonna start my 'Master' Project, which basicly sums up all my effort, skill and creativity.
But while working on the Bleach beta, I got an error, that likes to occur often enough when I'm doing other projects, which I can't afford, since I need to concetrate on making my AMV and NOT, solving Adobe problems.

But let's cut the chase and get down to specifications;

The error that I'm getting is as it follows: "After Effects error: overflow converting ratio denominators (17 :: 18)"

The video that I'm using is a Bleach movie (the second one);
Width: 768
Hight: 432
Framerate: 23
Bit rate: 128kbps
Audio format: MPEG Layer-3

I'm using Adobe After Effects v7.0

Basicly, when I point my curser over the second half of the movie, ANYWHERE, it brings up the error and doesn't refresh the image, dis - enabling me to countinue my project at will.
I hope you guys can help, I would most thankfull. ^.^

Oh and, to clarify, I don't think the movie is compressed at all, it's over 700 MB's.

Cao~

[mirkosp]

What's the video codec? If it's divx or xvid, then there it is your issue...

[Krisqo]

After a quick google search I stumbled across:

17 :: 18

Message text:
After Effects error: Overflow converting ratio denominators.
Message interpretation:
See 17 :: 16
Possible causes:
See 17 :: 16
Resolution or workaround
See 17 :: 16

So I clicked for 17 :: 16 and got this:

17 :: 16
December 9th, 2008

Message text:
After Effects error: Zero denominator in ratio addition.

Message interpretation:
After Effects was unable to calculate a proper sub-sampling pattern for its own transforms or an effect failed in calculating a pixel value.

Possible causes:
Your composition or footage use an unusual resolution.

Resolution or workaround
Modify your composition or footage resolution if possible. Cropping or resizing an image in Photoshop can make all the difference. f you are working in an anamorphic composition, try to switch to the square pixel equivalent

I also found it brought up on CreativeCow using CS3 but I think it might apply to 7.0. Does not hurt.

http://forums.creativecow.net/thread/2/917034

[Nejc]

Hmm, thanks for the help so far. I tryed changing the resolution to widescreen and back to pixel square and tried different width&hight values, though, it didn't fix it. But I'll try some more and see what comes up.

Also, the codec apears to be 'H.264/MPEG-4 AVC'. It's not Divx or Xvid, so I don't think that's a problem. Furthermore, I feel compiled to mention that I've searched for a solution of this problem over at Adobe.com forums and found some other topics with the same problem/error as mine, though I found no solution in those topics and also, the people that we're getting this error were using AE CS3 and were claiming that such error does not occur in AE 7.0, which is quite bizzare.

Well anyway, more help appriciated, I hope I can get this thing FIXED!

[mirkosp]

Also, the codec apears to be 'H.264/MPEG-4 AVC'. It's not Divx or Xvid, so I don't think that's a problem.

It's still a problem. Xvid and Divx are just the most common troublemaking ones, but really ANY lossy codec (H264 too) will have issues if you want to edit directly with it. There are some ways to fix this issue, one of them being working with avisynth+vfapi. Another one would be converting the clips you need to use to a lossless codec, such as huffyuv or lagarith, and use those to edit.

Also, 768x432 is a perfectly fine mod16 widescreen standard with square pixels, so you don't really have to worry about the resolution.

[Shui]

Overflow converting ratio denominators can be caused because the program interprets the source framerate wrong.
You can bypass this by inserting the frame rate of your Video files manually.