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JPEG sequences… How many frames?
Hello,
I’m having an interesting issue, actually quite
frustrating. I’m trying to create an uncompressed
AVI file from a sequence of JPEGs. There are 2601
frames in the sequence. Background:The frames are generated using C4D and files are on
a network server.I copy the JPEG files to my local HD and import the
files into AE as a sequence.I try to render and frames are messed up, some are
half drawn, all green, or luminance changes. Worse
is when AE tells me the file is unrecognized. When
I look at the individual frame in the windows picture
viewer, it is clearly broke.So I go check the file on the network server and it
is perfect. I recopy the files and all seems fine,
but other frames fail. They could be anywhere in the
sequences, even ones that worked eariler and weren’t
re-copied.So I thought there might be a problem with the copy,
so I compressed the sequence then copied it over.
Uncompressing and using these files results in the
same behavior.Finally I broke the sequence into groupings of less than
500frames. I was able to get something from this, but
it wasn’t perfect. Still had a few luminance changes,
but everything rendered.Question is, what is the biggest sequence AE can handle?
Are there specific methods for this. I’ve used 100
files before and not had a problem. Is there a better
flow for this?I am running AE 8.0.2 CS3 on a XP-sp2 with 3GB of ram
and 2 internal HDs.Any ideas would be much appreciated.
Thanks
MBW
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4 Replies
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Hmph. Odd. The number of JPEGS is not an issue, though. I’ve handled longer sequences, but then again … they were TGAs. To be safe, consider rendering TGAs next time. I don’t know why, but …?
Is there any chance you could import the files from the server, render to a TGA sequence on the local HD, then make an AVI out of that?
… or just render the AVI using the files from the server? It’s not like you need real-time access, as you would in an NLE …?
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Steve,
Thanks for the response. I also wouldn’t think AE would
care about the number of JPEGs. I originally rendered
TIFF files, but the same issue occured so I don’t think
it has to do with the files being JPEG.
You know I thought about just using the server files,
but I am afraid that AE is corrupting the JPEGs and
don’t want to destroy these. I guess I’ll have to try
it since that would tell me if the copy was the problem.
I’m just hoping to exhaust all other possibilities first.Thanks for the suggestions!
Mark
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Do you have to make it an AVI, that is what I would think is the issue. AVI’s always give me problems some times strange stuff like your talking about. The length of the sequence is not a big deal at all though I have had things over 5,000 frames and it was fine. I was not rendering AVI’s though. Are you interpertating all the footage the same? What AVI compression are you using? I would try a different one, and go through all the files with thumbnails on to check all the frames before you start.
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Bryan,
Well I could try to make it a MOV file,
but I find that AVIs work better on my PC.
Present case withstanding. At some point it
has to be rendered to something and I was thinking
that an uncompressed AVI would be the easiest,
but you bring up a good point. I’ll try the
quicktime and see if it is any better.Thanks
Mark
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