PDA

View Full Version : HD video cpu requirement

Neuromancer
08-15-08, 12:02 AM
Ok..

On my intel systems, I see 20% or higher on an OCed c2d system running 1680x1050 playing back bluray rips on my main machine. Using FFDShow for playback in WMP11


And yet...

750MHz duron 768MB RAM and a geforce MX2, also using FFDShow to playback although its WMP9 or 10 in Windows Fundamentals... plays back all my hd content with no stuttering.


Technically it should not be possible, and yet there it is... are we being lied to, to buy higher hardware? Is it because this machine only has 2 real purposes, ICS and video playback?

Is it that its using older WMP? Or less overhead OS?

Obviously considering this old card it is not GPU encoding going on (well that and FFDshow is CPU de/en-coding software), although before I found out it works just fine, I was thinking about getting a AGP card with that ability...

Anyone else running old machines for HD playback?
joesaiditstrue
08-15-08, 02:43 AM
i dunno, i used to use ffdshow for 1080p mkv/wmv's and in scenes with lots of smaller images moving around rapidly (sandman forming in spiderman 3, the crowds in Vantage Point, etc) made the movie slow down, then try to speed back up in the next scene, and was very annoying (this was with MPC, VLC, Zoom Player, and WMP)

i got the CoreAVC codec, and all of those problems vanished. ffdshow isn't very good IMO

btw the slowdown/speedup issue was on both my main PC, as well as my HTPC which is a C2D E4500 @ 3ghz, 3GB DDR2-667, Vista Ultimate x86, Radeon 1950XT 512MB PCI-E
ou_phidelt
08-15-08, 04:24 AM
What video cards are you using? Do you possibly have some the GPU doing the heavy work on the slower machine where the CPU is doing the heavy lifting on the C2D?
joesaiditstrue
08-15-08, 01:06 PM
What video cards are you using? Do you possibly have some the GPU doing the heavy work on the slower machine where the CPU is doing the heavy lifting on the C2D?

can you configure ffdshow to work with the GPU?
Mr.Guvernment
08-15-08, 01:09 PM
Yes, any ATi 3 series or higher and any nVIDIA 8 series or higher will decode HD content with programs like PowerDVD or coreAVC which support hardware acceleration - thus the GPU does all the work.

so most any cpu will work, if you have one of those vid cards
Neuromancer
08-15-08, 01:35 PM
can you configure ffdshow to work with the GPU?

No FFDshow is purely CPU

Which is why I asked. As MrGuv mentioned only powerdvd/coreavc use GPU encoding.