Cannot capture in 640x480 even with an Athlon XP! Could be??

[semmerket]

Hi,

I've some problems with capture in 640 x 480, 29.97fps, no sound, in VirtualDub... Some people in this forum say that they can capture in their systems with this resolution... THE REAL PROBLEM IS HERE: my computer is all brand new!!!! ANd why so, I cannot capture, and those people with computers "slowers" than mine can???

My config:

Windows XP
Athlon XP 1600+
MOBO Soyo Dragon Plus KT266A
256 RAM DDR PC2100
40 GB HD Maxtor 7200RPM
Video ASUS V8200 DeLuxe GeForce 3 Ti200


I've tried already all recent drivers, directx 8.1, last detonator drivers... enable DMA all this performance tips... The most strange thing is that CPU's benchmark of windows always jumps to 100%, when capturing!! This could be possible, even with a powerful CPU like Athlon XP??????

Please, someone! Give me a light!!!!

[Mirror_Image]

Different video codecs place widely different loads on your CPU. Uncompressed AVI files are enormous, but stress the CPU very little, whereas a hefty compresion codec can really load your CPU (because it's doing more.

What kind of Capture card are you using?

[zzyzzx]

Are you sure it's not your motherboard?



it looks like it has some of those crappy VIA chips on them. Good luck trying to get it to work properly!

[khelms]

Are you sure DMA is turned on for your hard drive?

[semmerket]

Yes! this is my motherboard!!! Yes I tried capture in uncrompressed RGB... the benchmark goes into 100% too!!!
Yes! I'm using 80 wire flat cable, bus mastering enabled, DMA mode active. The HD is placed alone in IDE 1.
I know .. those VIA chipsets are really problematic, but I searched for informations about this chipset before buy the mobo and I don't found any problem... but is really strange a benchmark in 100%, even with DMA enabled and uncompressed capture! I'll check for more informations for those chipset. But if anyone knows anymore about this problem, please, post here.

Thanks a lot!!

[Roginator]

Use the trial version of AVI_IO as a test. If that works, maybe you screwed up a settng in VirtualDub.

[semmerket]

Thanks for the advice!! but... where can I find this utility?

[Frost]

One of my boxes is a dual-boot Win98se and XP 2600. I cannot capture ANYTHING with ANY DECENCY in XP. Yes DMA is enabled, drive regularly defragged, latest drivers including some windows capture update....etc. The box is a 1 Ghz Athlon OC'ed to 1.2 w/512 MB DDR, GeForce2 and the same soyo Dragon MB w/2 ATA-100 drives; 40Gb and 60GB respectively. However, if I boot back into win98se I can capture at stupid high resolutions w/stupid high bitrates. Cannot even capture at VCD standard on XP w/out MAD dropped frames. In 98 I have tested up to 12 Mbit/sec video at 640x240 in both AVI and straight to MPEG-2 with NO dropped frames. My card is an ATI Video Wonder PCI. If anyone knows of any issuses w/this and XP please let me know...

[Roginator]

Oooh...Winblows XP...

I'm no expert, but in XP aren't you stuck using WDM drivers? If you go back to Win98 you can use the VfW drivers. Or you can find a VfW wrapper that's not very efficient.

Another alternative you might try is to use a program called iuVCR which reportedly allows decent capturing with WDM drivers.

Hey..someone jump in here.

Check the "How To" section or "Tools" to the left for iuVCR.

[semmerket]

Yes... in theory the Windows XP don't have official capture drivers... but I actually using the drivers for win2k and are perfectly running, except for the problem that I cannot capture with a decent resolution without drop frames...

I don't think that the problem is the OS because I have the same problems with win2k and I don't think that I can return to win98 only to test, because my HD is NTFS actually...

if anyone could test this issue... but I still have some doubts in the drivers... the 100% of cpu use when capture, really is giving me white hair!!!

[Chubs]

I have a simular system and I can not capture worth a crap with Virt-dub. Infact my particular card ATI Radian does not like VFW for capture at all. Try capturing in a different program and see if that helps. Also use a good codec like huffyv or mjpeg that will make a difference. :wink: