AVI capturing: resolution problem

[alejandro_dehoz]

I tried to follow the instructions found in this page to capture analog video (Hi8:PAL) with virtualdub, but when I try fix resolution to 768 x576 I get a 418 error: video resolution format error. The only resolultion that it accepts is 384x288, and with the data format, it does not accept YUY2, only RGB16 bits (I have installed huffyuv already)
I capture with an AverTV 203 card, with the s-video connector, and the RCA sound directly to the audio card. I have an AMD XP2600, 512Mb at 400 MHz, 80Gb at 7200rpm

Can someone help me?

[Will Hay]

I'm far from an expert and some other knowledgeable chap will most certainly expand but it may be that you're limited by the capabilities of your capture card.
i know nothing of your specirfic card but I do know some budget models can only capture a certain size.
Will

[sacajaweeda]

Which drivers are you using? The ones you get when you buy the Connexant cards won't be much use to you if you want to cap full resolution. Check these out....

http://www.iulabs.com/drv/index.shtml

There other "tweaked" drivers out there as well but I'm lazy and don't feel much like searching. There is also a decent program there at that site called IUVcr which works pretty good with those cards. I used it for a while myself (even paid for it) but I started using VirtualVCR and haven't really gone back to it. Both programs do a good job capturing video. IUVcr I had progressive audio synch problems with though, and VirtualVCR has a nice dynamic resampling feature that keeps the audio synched a lot better, so that's a plus for VirtualVCR, but the IUVcr program has a tuner that I like a lot more than the one that comes with the (free) VirtualVCR program, so they both have their pluses and minuses.

[FOO]

The capture card probably can't do 768 wide. Where did you get
that number ? 720 is standard .

[trevlac]

The capture card probably can't do 768 wide. Where did you get
that number ? 720 is standard .

768x576 is PAL 4:3 in PC pixels. VirtualVCR and BTwincap driver will do this in YUY2 no problem.

As far as 720 being a standard. Hardly. An analog PAL is 52 microseconds "wide". If you sample at standard (ITU-601) 13.5MHz, you get 702 pixels. Depending on the driver he uses, he may not get the whole 52 microseconds.

Bottom line:
Anyone who goes Analog to Digital at 720, using a Non DV device is getting a distorted picture.

768 for PAL viewing on a PC is closer than 720. For his driver, I'd say 762 and pad to 768 is right on. His driver probably will not let him do 762. He could try 764/760 or get a better driver.

[trevlac]

I tried to follow the instructions found in this page to capture analog video (Hi8:PAL) with virtualdub, but when I try fix resolution to 768 x576 I get a 418 error: video resolution format error. The only resolultion that it accepts is 384x288, and with the data format, it does not accept YUY2, only RGB16 bits (I have installed huffyuv already)
I capture with an AverTV 203 card, with the s-video connector, and the RCA sound directly to the audio card. I have an AMD XP2600, 512Mb at 400 MHz, 80Gb at 7200rpm

Can someone help me?

I do not use VirtualDub to capture. However, your problem is probably because Vdub follows an older standard for capture. Your driver follows a newer standard. There is a thing that is called a 'wrapper' that once installed may help.

Look here and find 'Error 418' on the page for more info on your problem.

Hope this helps....

[trevlac]

I'm far from an expert and some other knowledgeable chap will most certainly expand but it may be that you're limited by the capabilities of your capture card.
i know nothing of your specirfic card but I do know some budget models can only capture a certain size.
Will

Actually Will,

The budget model Hardware works quite well. It's the software that stinks. If you use an ATI card, you may be surprized to hear that it's drivers capture width are about 715/705 (depending on the theater chip/driver you have). This means 704 is a better option for you. Also, if AIT lets you do 768, this is a nice option for PAL on a PC. We here in NTSC land are stuck with 648x480. Thankfully I don't know what I am missing.

[RoopeT]

Disable overlay mode, use priview mode instead -> you should be able to capture > 288 lines.