Capture card for arcade pcb RGB CGA modes?

[Fudoh]

Do you know a way to capture original resolution with this card?

With iuVCR you can capture in 320x240 instead of 640x480, but I would not recommend it. The reason is that you're capturing analogue sources, so there's no real horizontal definition of a certain resolution, but rather the capturing digitizes the input by sampling each line a certain time. Once you you got iuVCR running and captured a proper 480i59.94 stream let me know and we can take it from there as it needs a bit of VirtualDub filtering to get the best results (correct line offset etc...).

[Ed Oscuro]

Dohh, I'm getting interested in the Holo3d now.

Quick question, is there anything Stefan_L (and by extension, me) can do for the Sweetspot with Irem pre-M92 and Taito F1/F2 hardware?

Also, Arasoi was wondering if the Holo3D replaces a XRGB2 for scaling...myself, I've always felt that using a splitter for capture and gameplay is a good idea.

[Arasoi]

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[Fudoh]

Unfortunately I don't have a Sweetspot or Holo installed at this moment (switched to a Blackmagic Multibridge earlier this year), but I never had any problems with the Holo and iuVCR. You don't need the Channels settings, but the "Crossbar" and "Configure" button under the device selection on the "video" tab. Under capture format you can set the resolution you're capturing too and in the compression field at the bottom of the video tab you set you codec (HuffYUV for example).

If nobody else here can help out, I'll try to get my Holo running on a spare mainboard I still should have somewhere around...

[Arasoi]

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[Fudoh]

Maybe you could upload a short clip (10 seconds?) to Megaupload or any other site for me to download it, so I can check it out before I tell you do this or that in VDub....

[Arasoi]

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[Fudoh]

Thanks for the video. On which system is Space Manbow running ? The problem is that it doesn't run fixed on 60fps and I can't tell if it's the game (which I guess) or the capture.

Here's the converted video (might take a few minutes before it's available for download)
http://www.megaupload.com/?d=V07Q01M4

[Arasoi]

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[Arasoi]

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[Fudoh]

It does look good, but it doesn't actually need the work, because the Video does not have 60 different fields. Space Mabow seems to be running at around 20-30 fps max.

Anyway. For 240p content, create an AVIsynth script

AviSource("d:\your_captured_video.avi")
AssumeTFF()
SeparateFields()

Then open the AVS in Virtualdub and load the Field Shift Filter v1.0 by Gunnar Thalin, then add a resize filter and reduce the vertical resolution to 240 lines, add a 2nd resize filter and upscale again to 480 lines. After that you can apply cropping, resizing and anything you want as you like. The output is a progressive 480p60 video, so you cannot use DivX or MPEG codecs - remember that.

The resize filters should both be set to "nearest neighbor". The three filters get rid of any flickering or line offset. The 2nd rescale to 480p is just for creating a reasonable size. If you want to save the videos as 320x240 or less instead, you can leave it out.

If for any reason you get jumping lines, replace the AssumeTFF in the AVS Scrips by AssumeBFF or flip the switch in the Field Shift filter....

If you have other games which actually run at only 30fps or less, you can save the trouble and just use a deinterlacing filter in VirtualDub by dropping every 2nd field. Results are the same, but the resulting video will only have 480p30.

[Arasoi]

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