VirtualDub Squashes Video Resolution

2012-10-27 01:59:23 pm

Hey guys, I've been trying to set VirtualDub up for recording, and I haven't been having too much luck. I've looked around for an answer to this, but haven't been able to find one. When I try to record with Vdub the preview window looks fine. It's at 720x480 like I told it in the custom format. However, when I actually capture the video, the captured file is at 720x240, and when I look under the cropping options it's also 720x240 there, but no cropping has actually been done. I'm really sick of trying to find out how to fix this, so any help would be greatly appreciated.

Thanks Smiley

Thread title:

TheThrillness

Edit history:

TheThrillness: 2012-10-27 02:10:51 pm

TheThrillness: 2012-10-27 02:10:10 pm

2012-10-27 02:08:49 pm

thethrillness.blogspot.com

I'm guessing the video source is from a retro console? The only sources I have ever seen with 720x240 is with SCART RGB sources and I highly doubt you are recording from SCART RGB and Sync Strike?

Cropping has nothing to do with the video size in this regard. If you have a 720x240 source from SCART RGB, you want to find the scan line double option in Virtualdub to make it 720x480.

Like I said, if you are not using SCART RGB and something like composite or s-video, you have misconfigured your device as it should be displaying the 240p as 480i. I don't know about the consequences of line doubling composite sources as I would imagine this would mess the deinterlacing when encoded.

TLoZSR

2012-10-27 02:11:07 pm

I am using composite on a wii, which is pretty far from a retro console, lol. I may have misconfigured it somewhere, but amarectv captures it fine (amarectv has its other issues, and I don't want to use it) What do you suggest I do with this?

TheThrillness

Edit history:

TheThrillness: 2012-10-27 02:12:57 pm

2012-10-27 02:12:42 pm

thethrillness.blogspot.com

Have you looked at the guide? It may provide some configuration options you did not know about in Virtualdub: http://forum.speeddemosarchive.com/post/complete_creating_sda_acceptable_videos_ezcap_guide_.html

Look around step 6.

TLoZSR

Edit history:

TLoZSR: 2012-10-27 02:57:07 pm

2012-10-27 02:19:31 pm

I have used that guide in the past, and everything used to work fine, but it's been a while since I did that. I went through it again real quick, and everything is set correctly, and I'm still having problems.

Something I just thought of, very recently my old capture card died, and I had to buy a new one. I got the same exact card, but I might be missing some drivers or something? Last time I remember having vdub working was on my old card.

Edit: tried installing drivers, no cigar Sad

nate

2012-10-27 04:02:57 pm

what is the framerate of the output video?

TLoZSR

Edit history:

TLoZSR: 2012-10-27 04:07:54 pm

2012-10-27 04:03:53 pm

the framerate is 29.97

also, this may help, at any resolution I select (like 640x480 or anything else) the height is always half of what I selected, the width is always right.

nate

2012-10-27 04:09:42 pm

have you tried using different capture software? right now it sounds like a driver thing to me ... maybe a bad capture device.

TLoZSR

2012-10-27 04:12:07 pm

I've used amarec fine, but I want to switch to vdub because amarec has been too unstable for me :\

TLoZSR

2012-10-27 04:59:43 pm

ok, I managed to fix it by deleting all of virtualdub's entries in the registry, thanks for the help everyone Smiley

Raelcun

Edit history:

Raelcun: 2013-02-02 03:55:12 pm

2013-02-02 03:54:59 pm

We require more minerals

So I was setting up vdub today ran into the same issue and found out there's an option under video that likes to default to checked which anyone running into this problem should check.

Video ==> Vertical reduction ==> Set to none

If it was defaulting to 2:1 let it did with mine, then it was literally just chopping half the vertical of your video off.