I am tired of frame drops!

[liemannen]

Hi,

I was wondering if there is someone have any ideas how to get rid of the darn rame drops. There are about 50 drops each at every 10 s when i do basic capturing for VCD in Vdub or Vidcap32 (384x288. YUY2, Hudffyuv. CD audio, AVI) I use Win2000 Pro and use a Miro StudioPCTV PCI.
Smeone said "-look for Processes thar steals RAM".. so which ones can be turned off? That the harddrives is in DMA mode is checked. Is there any BIOS settings that one shuld do that optimizes capturing?
As windows is using ACPI they say IRQ sharing is not a problem?

My Computer:
AMD Athlon 750, 256 PC133, Abit KA7-100, 2x30 IBM HD UDMA 100, Soudblaster LIVE 1024, ELSA GeForce2 AGP + CD, NIC and an old 8 GB HD.

:evil:

[Anonymous65]

Drop the Huff encoder. The Mjpeg encoder is faster (Morgan or Picvideo). Set the quality to 19 or 95% for a 5:1 compression. This will cut your file size in half compared to Huff, and lower the system demand a lot.

[Poplar]

Your computer should be fast enough. If the CPU usage is low and you are still dropping lot of frames, the problem is with your hard drive. IBM doesn't make fastest hard drives, even though they are labeled as ATA100/7200rpm. I read an test of hard drives on PC World Magazine, in which Maxtor 5200rpm hard drive beats many 7200rpm hard drives, including IBM. In fact, they are the slowest hard drives out there.
My system is an ancient PIII-500. It can hardly handle Huffyuv. Usually I capture uncompressed, because I have a big 80GB Maxtor DiamondMax 5400rpm hard drive that can handle the data rate at 480X480. It's a little bit funny that my CPU can't handle it but my hard drive can.

[Shabubu]

More importantly make sure that the old 8Gb hard disk and the CD roms aren't on the same IDE channel as the capture drives. The IDE channel will only go as fast as the slowest device on it so that will cause your hard disks to run at UDMA 33 or slower (depending on the specs of those drives).

[Bstansbury]

There are many things that can cause your system to drop frames,... so you have to hunt till you find what is causing the problem. My system is 750 MHz Duron and I can capture up to 640x480. One thing I see in you system is the Soundblaster audio card. I've see other posts that talk about all kinds of capture problems with the soundblaster card. I suspect it has to do with the IRQ's used by the soundcard,... and if it is sharing an IRQ with the capture card. There are all kinds things you can check in your OS and in your Bios. Also, you have a KA7 motherboard. This tells me you probably have the Via KT133 chip set on that MOB.. If this is the case you need to get the latest drives for that chip set and update the Bios on your motherboard.

For more details on all of this and How to tune your system,... look into the "User Guides" section of these forums for a guide I wrote and saved there. While you don't have an ATI Capture card,... most of the tuning information applies to most system. Also there is a "Twealing Guide" for Windows 2000,... which is what you have. Go to this web site and at the bottom of that page you can click on "Dave's" guides for Win 2k.

http://www.videoguys.com/Win2K.html


Hope this helps.

[kwag]

Hi,

I was wondering if there is someone have any ideas how to get rid of the darn rame drops. There are about 50 drops each at every 10 s when i do basic capturing for VCD in Vdub or Vidcap32 (384x288. YUY2, Hudffyuv. CD audio, AVI) I use Win2000 Pro and use a Miro StudioPCTV PCI.
Smeone said "-look for Processes thar steals RAM".. so which ones can be turned off? That the harddrives is in DMA mode is checked. Is there any BIOS settings that one shuld do that optimizes capturing?
As windows is using ACPI they say IRQ sharing is not a problem?

My Computer:
AMD Athlon 750, 256 PC133, Abit KA7-100, 2x30 IBM HD UDMA 100, Soudblaster LIVE 1024, ELSA GeForce2 AGP + CD, NIC and an old 8 GB HD.

Hi liemannen:

Download this drivers:
http://btwincap.sourceforge.net/

And your problems will be over.
You can capture at any resolution.
It never fails, and I use Huffy CODEC capturing at 352x480, and drops 2 or 3 frames in a 2 hour capture.

kwag

[Ronin2]

I found the best combination with the PCTV Card for me is capturing at 480 x 576 (PAL) with AVI_IO, PICVideo codec with quality set at 19 and the RGB24 setting. I'm running Win98SE so I use the capture driver that came with the card.
VDub is used to cut out the unwanted bits and frame serve to TMPGenc to create standard SVCD mpeg files.
Let us know how you go.
Ronin2