After Effects 5.0 not enough memory to open file?

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After Effects 5.0 not enough memory to open file?

Postby BasharOfTheAges » Tue Aug 29, 2006 3:08 pm

I'm trying to inport a rather large graphic into AE 5.0 (just under 12000 pixels wide) and i'm being told i lack enough memory to open the image. I currently have 640MB of PC2100 in my system now and i'll have 1GB tomorow. The one issue i'm seeing is that the image is only 90MB, so in terms of memory space wise i'm fine.

Anyone familiar with the error i'm talking about? Perhaps it's not correctly described or correctly stated by AE and the problem is more spicific and something other than a RAM issue.

I'm going to need to import around 200 or so such images into AE. Each one causes VDubMod to freeze so i cant turn it into a video stream before I import. Any suggestions? A different version of AE perhaps?
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Postby DeinReich » Tue Aug 29, 2006 4:58 pm

Wild guess, but save the image as a different file type perhaps? If it's in .bmp or .png, just save it as a high quality .jpg and it should still look fine.
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Postby BasharOfTheAges » Tue Aug 29, 2006 5:19 pm

It actually is a high-quality JPEG. That's all the software i used to create it will export as.
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Postby Zarxrax » Tue Aug 29, 2006 7:02 pm

After Effects has to decompress the image to work with it. That means, in order to see how much space the file will REALLY take up in memory, you need to save it as an uncompressed format like BMP.
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Postby Purge » Tue Aug 29, 2006 7:08 pm

quote:

The following formula helps you determine the amount of RAM you need based on the footage: Image Width in Pixels x Image Height in Pixels x 4 Bytes of Memory for 32 bits-per-pixel (bpp) or 8 Bytes of Memory for 64 bpp. For example, a 30,000-x-30,000-pixel image requires 3.5 GB of RAM to import and display each frame. However, a 30,000-x-486-pixel image requires only 60 MB of RAM. Memory requirements for 16-bits-per-channel (bpc) project color depth are approximately double those for 8 bpc.
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Postby BasharOfTheAges » Tue Aug 29, 2006 7:11 pm

Ah, so this isn't an old way of saying "AE can't work with something that big (physically)"

It's just a single 4:3 0.9 PAR image that happens to be just under 12000 pixels wide... and that won't even load. I swore I heard you could import stuff a lot bigger than that without problems.

I need to get a few hundred of these into an animated stream (complete with zooming and resizing so the export will only be like 640x480 anyways. What can i do?
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Postby Zarxrax » Tue Aug 29, 2006 7:19 pm

Split it up into smaller images, then combine them together in after effects.

BTW, for the image specifications you mentioned that would mean it would take at least 324mb of ram to load the image, since I assume it would be 24bit. When you factor in the amount of ram that windows eats up, and the ram that AE itself is eating, then it's quite possible that the total would exceed 640mb. Of course, I don't think it should really be a problem if you have virtual memory enabled in windows...

But anyways, once you get to 1gb of ram, you might be able to handle it. However, handling about 200 of those... I just don't think you will be able to do it on 1gb of ram without some clever workarounds.
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Postby BasharOfTheAges » Tue Aug 29, 2006 7:21 pm

heh, well acording to that formula i'd need close to a GB for the picture. How would this work with a video stream or a series of pictures? By that formula a lot of the stuff I've actually done in AE couldn't be done on my system if it's additive.
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Postby BasharOfTheAges » Tue Aug 29, 2006 7:24 pm

Zarxrax wrote:BTW, for the image specifications you mentioned that would mean it would take at least 324mb of ram to load the image, since I assume it would be 24bit. When you factor in the amount of ram that windows eats up, and the ram that AE itself is eating, then it's quite possible that the total would exceed 640mb. Of course, I don't think it should really be a problem if you have virtual memory enabled in windows...


That's why I though the error message was wrong. I have plenty of virtual memory reserved, but AE isn't even attempting to utilize it.
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Postby Zarxrax » Tue Aug 29, 2006 8:49 pm

Well, for videos it doesnt have to load the entire video into memory, only really 1 frame at a time. At 640x480, that usually means about 1mb per frame.

And as for multiple pictures, you really only need memory for whats on display at any particular point in time. For instance, if you plan to do something like just pan across all 200 images, one or 2 at a time... thats probably doable. If you want to have all 200 12000x9000 resolution images onscreen all at once though, theres no way in hell, aside from making lower resolution images to dynamically swap in and out, depending on their distance from the camera.
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Postby BasharOfTheAges » Tue Aug 29, 2006 9:12 pm

I was going for a frame by frame image sequence. those 200 images are frames of video that have been turned into mosaics, and virtualdub doesn't want to load even one of those images up so i could save it as a video sequence.

Thanks for the help. And btw, this was the video i had bothered you about betaing a while back - let's just say it's slow going 230 hours of work so far and very little to show for it
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Postby Purge » Tue Aug 29, 2006 9:33 pm

im going of hear-say but you could also try gimp/cinepaint to save the sequence as an avi file.
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Postby BasharOfTheAges » Wed Aug 30, 2006 12:39 am

Purge wrote:im going of hear-say but you could also try gimp/cinepaint to save the sequence as an avi file.


Quite possibly, but I need to have the image stream in AE anyways, so I figure frame by frame manipulation won't be that bad. I can always take what I did to the previous frame and apply it to the next one and work from there. I'm already going frame by frame for certain masks and video stream overlays, so it's not going to increase the dificulty that much.
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Postby BasharOfTheAges » Thu Aug 31, 2006 3:41 pm

And my RAM is DOA... i love life sometimes.


I'm RMA-ing it, but i still can't figure out why the fuck AE isn't using virtual memory when it's trying to load the image... so i really doubt this RAM will help at all.
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Postby Gepetto » Fri Sep 01, 2006 2:13 pm

Does the resolution really have to be that big? If I get it right, your images are groups of different frames that you'll zoom in and out from. If that's the case, each frame in the image shouldn't have to be in full resolution (compared to your project resolution).

You can actually get good results with 3/4 resolution, or even 1/2 depending on how fast the motion is actually going on in the video. After all, properly encoded 320x240 videos can be displayed fullscreen on a 1024x768 monitor without looking ugly. IF the problem is with your RAM/virtual memory, resizing the images into something smaller can solve, or at least help solve your problem (e.g. even if it persists now, when your 1GB RAM kicks in). After all, the resolution is the big determinant of the filesize (just look at Purge's calculations).
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