DV500 with Dual Processors

Pwolf · Post by **Pwolf** » Tue Aug 19, 2003 4:03 am

I am running a 2.8ghz p4 and i edit with Avisynth. It is pretty fast IMO. I can watch an avs file in real time with some filters on also. The only problem i have is when i am editing with a lot of scripts but that issue came up in the mailing list and the solution was to put this before any commands (just put it at the top of the file):

SetMemoryMax(16)

I havn't tested it much though. damn i really need to start editing again

Pwolf

ErMaC · Post by **ErMaC** » Tue Aug 19, 2003 1:30 pm

The DV500 will accellerate the video creation process even when using AVS files... here's how:

The DV500's onboard DV encoder hooks into the codec is uses to compress, and so basically all DV compression is hardware assisted. So when I drop an AVS file onto the timeline and hit render, the card's doing the compression work - my CPU's doing the decoding from AVISynth work, though.

As for your question about dual processor... because the encode and decode threads are separate, and sometimes when you have multiple layers you're decoding two threads at once, so the whole thing can take decent advantage of multiprocessor.
But honestly you won't see that much of a speed increase from JUST SMP unless you're using SMP-enabled AVS filters, doing at least 2 layers at all times, or doing your final render to something that isn't DV.
however, moving from a 1GHz machine to a 2000+ might provide enough of a speed increase right there to make it worth your while.

TokyoU15 · Post by **TokyoU15** » Tue Aug 19, 2003 6:43 pm

thank you for the clarification ErMaC, I appreciate it.

Pwolf · Post by **Pwolf** » Sat Aug 23, 2003 5:35 am

So with my 2.8ghz, will buying a DV500 be worth it if i am editing with AVS files? or will i be better off keeping my money?

Pwolf

FurryCurry · Post by **FurryCurry** » Sat Aug 23, 2003 2:59 pm

A DV 500 will not accelerate avisynth.

Pwolf · Post by **Pwolf** » Sat Aug 23, 2003 3:37 pm

ermac just said it would....

Pwolf

TokyoU15 · Post by **TokyoU15** » Sat Aug 23, 2003 4:34 pm

Then why are you asking a question already answered?

I think you missunderstood Ermac. All the card will do is handle the rendering, but your CPU is decoding avisynth to work.

It doesn't really speed up the decoding of AVISynth, it just handles the compression (rendering) of your files in premiere while your CPU feeds it the working avs file (running through avisynth).

If I'm mistaken, please correct me.

Pwolf · Post by **Pwolf** » Sat Aug 23, 2003 5:54 pm

Well the thing is i am confused. Will it help me at all with editing? Does the card speed up editing or just speed up rendering to DV?

Pwolf

NicholasDWolfwood · Post by **NicholasDWolfwood** » Sat Aug 23, 2003 6:10 pm

NO

Let me put it into term's you'll understand.

Say you lay down a bunch of AVISynth clips on the timeline, just straight cuts, no effects or transitions. Then you hit Enter to Preview the render. The DV500 will render the preview in DV, and the decoding of the AVS files is done by the CPU. The DV500 will only assist in rendering previews / final exports to DV.

Pwolf · Post by **Pwolf** » Sat Aug 23, 2003 6:17 pm

ok that helps... i guess i wont buy it then.

Pwolf