I need HELP, please!

[egov]

I am going through a hard time with my G200 Marvel TV and your help is the only chance I have. This computer has been earning my living for the last 7 years and now I am stuck with expensive and useless hardware. The whole story started since I bought Matrox Marvel G200 TV (over $500). The original idea was to use the hardware MJPEG compression for home video editing. But when I capture I have those checkerboard patterns http://server3002.freeyellow.com/statii/Untitled-2.jpg and the problem was never resolved. I replaced the video-card with a new one, changed 3 power supplies, motherboard, soundcard, even moved to a new place, but the problem remains unsolved. I found other people that have the same difficulties:
http://forums.murc.ws/ubb/Forum2/HTML/003709.html
http://forums.murc.ws/ubb/Forum2/HTML/003804.html
http://forums.murc.ws/ubb/Forum2/HTML/004137.html
http://forum.matrox.com/mgaforum/For...ML/002516.html

I was never able to convince Matrox that the problem is with their card, so now have to give up the possibility of using MJPEG for editing, unless someone can help me convince them. The last chance I have is using YUY2 with HuffYuv. Then I run into another problem: during or after capture the machine is crashing on blue screen with messages such as "A fatal exception OE has occured at 0028:C1634c63" and MMTASK caused a general protection fault
in module MMSYSTEM.DLL at 0004:00002054.
Registers:
EAX=0db70005 CS=1ea7 EIP=00002054 EFLGS=00000286
EBX=00025d94 SS=392f ESP=00001ee0 EBP=80920bbf
ECX=0002392f DS=0d87 ESI=00000000 FS=27ef
EDX=00012827 ES=2827 EDI=00000000 GS=0000
Bytes at CS:EIP:
ca 02 00 90 c8 04 00 00 57 56 1e b8 5f 1e 8e d8
Stack dump:
00000db7 00000000 1ee51ef8 28270000 44c0392f 282741f7 10d01f12 000017b7 00002827 074c0401 00000000 000044c0 1f6816bf 17af23a0 00000000 28270000

I am in desperate need to fix the problem.
Someone suggested that it could be a conflict with the video card and the MSI 6309 VIA chipsets, so I bought ASUS CUSL2-C with the lastest Intel 815E chipset http://www.asus.com/products/motherb...ntiumpro/cusl2 but the problem remains.

here's a brief description of my system:
PIII 733MHz on ASCUC CUSL2-C motherboard, PC100 256 MB memory, 1 ATA66 HDD 27Gig, 1 ATA100 HDD 40Gig (only for videocapture), Sound Blaster 128 PCI, PCI Lan controller

here's a hardware report:
http://server3002.freeyellow.com/statii/hardware.txt

[windigo]

have you tried using s-video or another composite cable you should try that before u pull your hair out .

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MSI K7TPro2 Duron 750@900
256Ram G400DH32mb
Pioneer SCSI 16xDVD

[Brian Ellis]

Egov

I notice that all the refs you give are N. American. I have never seen anything like it on PAL. Could it be something inherent in NTSC?

What frame frequency do you run at? You may have to force it to the standard (29.9something) from the nominal 30 Hz. This kind of patterning would be typical of some kind of phase or frequency shift. Other than that, sorry, don't have any suggestions.



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Brian (the terrible)

[egov]

I haven't tried the S-VIDEO input.
I tried all possible capture rates, starting from 15 fps

[TIbrO]

I think I have read at some other posts that the S-Video indeed eliminates the checkerboard patterns in captures over 352x240. Something to do with Liminance and Color signal seperation or something...

[egov]

352 x 240 does not provide enough quality for editing purpose.
I created a simple test for checkerboard effect at http://members.nbci.com/_XMCM/worldw...deo/index.html
The steps you should follow are: set the screen resolution to 800 x 600, 16 bit, enable TV out, in Display properties/Settings/Advanced/TV output, set Brightness to 150, Contrast to 200, Saturation 120, antiflicker to 0. Then create a loop by connecting the BOB Video Out with Video In or simply record the test pattern on VCR and play it back.
Bring up the PC-VCR, set it to record MJPEG at 704x480. Open the test page in the browser and record 3-4 minutes with PC-VCR.
Then, try to play it with Windows Media Player or PC-VCR. Sometimes, when played, the image is so blurred by the video driver that the pattern is "dissolved", but in fact if you look carefully, it appears as a "boiling" noise, like from an old VHS tape. If you do not see the pattern, open the capture in VirtualDub (http://www.geocities.com/virtualdub/v1_4c/VirtualDub-1_4c.zip ). There it is clearly visible: http://members.nbci.com/worldwinner1/video/prfile.gif
you can clearly see the pattern over the red, yellow and the green circles.

Note: NBCI.COM does not allow direct link to pictures, so you have to download them first on your computer before viewing them.