Memory consumption with non avi files

Warren Hedges wrote on 9/14/2007, 7:55 PM
Is this normal behaviour?

When adding files to the project media list, around 3-4MB of memory is consumed for each clip added. This happens with XDCam proxies and quicktime .mov files (dv codec) but not normal .avi files. This obviously becomes a problem when using a large number of clips. On one occasion I was only able to import 2 discs (out of 9) into the project before the program repeatedly quit with an exception. This makes it a bit hard to edit anything with a bit length to it.

I am using Vegas 7.0e and have also experienced the same behaviour in Vegas pro 8.

Has anyone else struck this and is there a workaround?

Thanks
Warren

Comments

TheHappyFriar wrote on 9/14/2007, 8:10 PM
well, a work around is to render as DV AVI's I guess. QT loads up the external QW drivers. Have you checked WMV, mpeg-2, etc. files?
marks27 wrote on 9/14/2007, 8:31 PM
There is a preference setting which allows to only build peaks for visible events only. This might prevent unnecessary processing on media when it is just loaded, particularly if you are working with any sort of compressed media (mpeg2, etc). You take a bit of a hit later when you load up media, but nothing too horrible.

Ciao,

marks
Warren Hedges wrote on 9/14/2007, 9:07 PM
Its worse than I first thought!

In Explorer tab, just clicking on a file (.mov, .wmv, m2t, mpg) consumes about 3-4MB. Once the file has been selected, subsequent selection does not effect memory usage. However when the file is added to the project media list about 2MB is consumed.

avi and IMX encoded MXF files seem to be immune to this behaviour.

This is a SERIOUS memory leak!

Changing preferences to build peaks for visible events only appears to have no effect.


Can this problem be replicated on other systems?

thanks
Warren
TheHappyFriar wrote on 9/14/2007, 9:32 PM
i did this in vegas 6 too.

I 100% belive it's NOT a memory leak. It's either Vegas caching recently used files for faster playback (which seems to happen) or it's windows doing the same.

Odds are you could have to much in memory to handle the files you're trying to uncompress or there's an issue with your computer to cause it to crash. You never said your specs but how much memory you have (your profile says 1gb+). My dad has 512mb shared memory on his laptop & has editing 1hour+ of compressed videos & it's never crashed for him. He's using Vegas 4 currently, so it could be an issue with later versions but i doubt it. I believe in vegas 4 when you opened media it sucked up memory too.