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Re: Appian Graphics Gemini PCI - S3 Savage MX 16MB

Posted on 2021-01-17, 15:04

So what are actually the PCI Vendor / Device IDs of your card? Does it also use the 86C290 chipset? Since there was the question about benchmarks here, I did a few with the Spectrah Dynamics Inc LD-S370 Savage MX https://retronn.de/imports/hwgal/hw_s3_savage_mx_spectrah.html See the second …

Re: DScaler 4.2.3a

Posted on 2020-12-19, 14:22

Hmm, I have not touched the video recording part, but maybe progressive output somehow interfers with that. I have to look into this. What would be the advantages for capturing with DScaler when going from AVI to MKV? The only thing I can imagine is writing the DAR to the container.

Re: VGA Capture Thread

Posted on 2020-11-13, 10:44

I don't know, 720 x 400 would show as 4:3 if you don't have a choice of display, but I personally never end up squishing it when viewing in a capture window. By the way, have you done testing on the effects of interpolated scaling on temporal image quality on YouTube? I've noticed it tends to end …

Re: VGA Capture Thread

Posted on 2020-10-24, 11:41

If you capture YUV the OSSC doubling is a good option. If you capture RGB it is on your side where you do the color space conversion. As you upscale for youtube anyway, it makes sense to already provide the encoder with the RGB data and let it do the conversion. Aspect ratio: In a general case there …

Re: VGA Capture Thread

Posted on 2020-10-21, 09:34

I use Epiphan cards and made some years ago a tool for such optimizations. It is much easier to tune the stuff when you have the numbers at hand and don't have to judge some noise in screenshots. It was posted in this thread here: https://www.vogons.org/viewtopic.php?f=63&t=26661&p=370770#p370770 …

Re: VGA Capture Thread

Posted on 2020-09-16, 09:42

AFAIR there are no 4K capture cards that capture RGB. (Correct me if you know one) Every flat panel screen samples 400p modes as 720, so e.g. 320x200 is displayed wrong since it requires sampling with 640 pixels.

Re: Cirrus Logic Eagle II 8-bit VGA card

Posted on 2020-08-04, 20:23

I recently got a similar card, long, 8 bit ISA, with CL-GD520/540. Thanks for the DIP switches, that helped. My card has an 32kB Eagle II BIOS V2.12 from 1988. When switched to MDA the BIOS size shrinks to 4 kB. If there is interest I can upload the image.

Re: MCA Adlib card -- just need pictures

Posted on 2020-07-22, 09:38

Interesting, however it is somewhat unclear to me from the description if it works in a faster MCA machine like a Model 80 and if the lockup issue in combination with memory expansion cards is resolved. The description does not mention any of these points that came up here in the thread.

Re: VGA Capture Thread

Posted on 2020-07-09, 11:00

What is quite odd is that it cuts off left and top. Like it samples the full screen and then output only the lower right part of it. Usually if a device just samples 350 lines of a 400 line resolution only the top 350 lines are displayed.

Re: DScaler 4.2.3a

Posted on 2020-07-06, 16:02

First of all I just did a a few small contributions to the already existing DScaler project with changes that adressed some of my own points. Though, it is good to hear that it works good for your application too. PVR3000 Deluxe: It mainly depends what driver API the card offers. DScaler supports …

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