OSSC (DIY video digitizer & scandoubler)

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Thomago
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Re: DIY video digitizer & scandoubler

Post by Thomago »

Hah... I would have loved to see an output mode other than 1440x960 for 480i Line4x mode. I mean... 1440x960 in and of itself is fine, but as described here (https://www.videogameperfection.com/for ... i480p576p/), the OSSC doesn't actually sample 1440 pixels, but only 720 pixels, which are then doubled. That makes anything that deviates from the standard 640xbla resolution look awful.

Even 720x960 output would be fine as an alternative, but, as far as I can see, there's no way of forcing that (in contrast to 480p Line2x mode).
RGB0b
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Re: DIY video digitizer & scandoubler

Post by RGB0b »

Sorry if this question has been answered before, but does anyone know of some CHEAP TV models available in the US that are SNES 4x and 5x compatible? Size could be 32" - 50", but 40" is probably ideal. A friend has a 32" Samsung that I'll try next week; Supposedly people have had good luck with those, but it's 1080p and while that's fine, I'd much prefer 4K. Once again, cheap is the most important factor, not quality: This is more for display then actual gaming.
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Jademalo
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Re: DIY video digitizer & scandoubler

Post by Jademalo »

Aww, my PC bluescreens if I try to capture Line2x Optim D:

Looks like I'm buying a new capture card, rip my wallet
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citrus3000psi
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Re: DIY video digitizer & scandoubler

Post by citrus3000psi »

retrorgb wrote:Sorry if this question has been answered before, but does anyone know of some CHEAP TV models available in the US that are SNES 4x and 5x compatible? Size could be 32" - 50", but 40" is probably ideal. A friend has a 32" Samsung that I'll try next week; Supposedly people have had good luck with those, but it's 1080p and while that's fine, I'd much prefer 4K. Once again, cheap is the most important factor, not quality: This is more for display then actual gaming.
How important is lag? I think my 2016 D Series Vizio handles all modes when NOT using HDMI port 5.
CobraKing
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Re: DIY video digitizer & scandoubler

Post by CobraKing »

ZellSF wrote:
HDMI IT content didn't seem to do anything for either the DVDO VP50 or the generic SCART scaler, but I didn't experiment that much with it.

I thought I'd mention. I thought the TX setting (DVI or HDMI) was useless, but it has a huge effect on image quality on the generic SCART scaler and a huge effect on supported modes on the XRGB-mini. Anyone who hasn't tried experimenting with that on their devices really should.
@ZellSF, in the above case which setting had a better image quality?

I noticed something on my 2011 Sony LCD TV when I switched between the modes, the colours seemed slightly more vibrant on HDMI.
RGB0b
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Re: DIY video digitizer & scandoubler

Post by RGB0b »

citrus3000psi wrote:
retrorgb wrote:Sorry if this question has been answered before, but does anyone know of some CHEAP TV models available in the US that are SNES 4x and 5x compatible? Size could be 32" - 50", but 40" is probably ideal. A friend has a 32" Samsung that I'll try next week; Supposedly people have had good luck with those, but it's 1080p and while that's fine, I'd much prefer 4K. Once again, cheap is the most important factor, not quality: This is more for display then actual gaming.
How important is lag? I think my 2016 D Series Vizio handles all modes when NOT using HDMI port 5.
In this case, lag is not important at all. LOL, it hurts my soul to type those words, but I just need a decent way to demonstrate certain things.

I tried a 2016 Vizio, but I didn't have good luck. I know different size panels react differently though...what size and model do you have?
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Jademalo
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Re: DIY video digitizer & scandoubler

Post by Jademalo »

retrorgb wrote:Sorry if this question has been answered before, but does anyone know of some CHEAP TV models available in the US that are SNES 4x and 5x compatible? Size could be 32" - 50", but 40" is probably ideal. A friend has a 32" Samsung that I'll try next week; Supposedly people have had good luck with those, but it's 1080p and while that's fine, I'd much prefer 4K. Once again, cheap is the most important factor, not quality: This is more for display then actual gaming.
My favourite test screen is my BenQ RL-2450HT. It supports every mode without fuss, and has a 1:1 pixel mode so there's no awful scaling artefacting. It's only 1080p and it's only 24" and as im reading this you want something 40" and this post is pointless, but it's honestly a great screen to demonstrate to people with. Everything is just so damn crisp on it
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marqs
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Re: DIY video digitizer & scandoubler

Post by marqs »

retrorgb wrote:Sorry if this question has been answered before, but does anyone know of some CHEAP TV models available in the US that are SNES 4x and 5x compatible? Size could be 32" - 50", but 40" is probably ideal. A friend has a 32" Samsung that I'll try next week; Supposedly people have had good luck with those, but it's 1080p and while that's fine, I'd much prefer 4K. Once again, cheap is the most important factor, not quality: This is more for display then actual gaming.
At least here in Europe cheap (<$500) 4k TVs are not that common yet.

On the other end of price scale, Panasonic EZ1002 seems to be one of the first great OLEDs for gaming (relatively low latency, BFI) according to initial reviews. Hopefully their lower-priced EZ952 model will have those characteristics too.
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Guspaz
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Re: DIY video digitizer & scandoubler

Post by Guspaz »

Not quite a TV, but the Epson PowerLite 8345/8350 supports 240x4 with 2 frames of latency (1080p projector) and can be found on eBay in new condition for $450 USD. Good for screens in the 60-100" range, IMO (larger screens work in dark rooms if you accept reduced colour accuracy). Does not work with x3 or x5, does not work with 480x2.

To be honest, the projector upscales 240p very crisply, so there isn't really a visible difference between 240x1, 240x2, or 240x4, although it's possible that a console with sharper RGB output might make the difference visible. Still, I leave it on 240x4 because, why not, it actually seems to be more compatible with x4 than x2 (GBI-ULL works x1 and x4 but not x2).
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citrus3000psi
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Re: DIY video digitizer & scandoubler

Post by citrus3000psi »

retrorgb wrote:
citrus3000psi wrote:
retrorgb wrote:Sorry if this question has been answered before, but does anyone know of some CHEAP TV models available in the US that are SNES 4x and 5x compatible? Size could be 32" - 50", but 40" is probably ideal. A friend has a 32" Samsung that I'll try next week; Supposedly people have had good luck with those, but it's 1080p and while that's fine, I'd much prefer 4K. Once again, cheap is the most important factor, not quality: This is more for display then actual gaming.
How important is lag? I think my 2016 D Series Vizio handles all modes when NOT using HDMI port 5.
In this case, lag is not important at all. LOL, it hurts my soul to type those words, but I just need a decent way to demonstrate certain things.

I tried a 2016 Vizio, but I didn't have good luck. I know different size panels react differently though...what size and model do you have?
I have a 40" panel. D40U-D1

I've had good luck with it taking almost any input on the non game port 5.
With the game port things get a little weird. I've had different OSSC (same firmware/settings) act different on the HDMI port 5.

All with audio boards + SNES. I've had:

One not sync at all
One work perfect
One where audio cuts in and out but video was fine.

So I don't know how sensetive the D series is with sync on this port.
Sirotaca
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Re: DIY video digitizer & scandoubler

Post by Sirotaca »

Sorry if this has come up a lot, but it's a long thread.

Is there a halfway-decent composite-to-RGBs/RGBHV/YPbPr transcoder that doesn't cost hundreds of dollars? It'd be nice to be able to ditch my Framemeister altogether, but I'm still on the fence about whether or not I like the idea of RGB-modding my Famicom.
Nrg
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Re: DIY video digitizer & scandoubler

Post by Nrg »

Sirotaca wrote:Is there a halfway-decent composite-to-RGBs/RGBHV/YPbPr transcoder that doesn't cost hundreds of dollars? It'd be nice to be able to ditch my Framemeister altogether, but I'm still on the fence about whether or not I like the idea of RGB-modding my Famicom.
If you can find an Extron CD400, get it. It's the best I've tested and used so far. (Note that Extron CD900 does not work properly, CD900 only accepts interlaced input, where CD400 seems to work fine with both progressive 240p/288p and 480i/576i inputs).
RGB0b
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Re: DIY video digitizer & scandoubler

Post by RGB0b »

@Jademalo - Thanks for the recommendation. I'll most likely pick up one of those RL-2450HT's at some point, if I can find it cheap.

@marqs - I think OLED is a bit out of my price range at the moment :) If I'm lucky, I might get one by the end of the year.

@guzpaz - That projector looks cool, but I'm constrained to using a TV, no bigger then 50" (but 40" is probably best).

@citrus3000psi - The D40U-D1 is the one I bought last year and had equally as inconsistent results as you did. Unless I find one really cheap, I think I'll start with a different model. Thanks though!
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citrus3000psi
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Re: DIY video digitizer & scandoubler

Post by citrus3000psi »

retrorgb wrote:@Jademalo - Thanks for the recommendation. I'll most likely pick up one of those RL-2450HT's at some point, if I can find it cheap.

@marqs - I think OLED is a bit out of my price range at the moment :) If I'm lucky, I might get one by the end of the year.

@guzpaz - That projector looks cool, but I'm constrained to using a TV, no bigger then 50" (but 40" is probably best).

@citrus3000psi - The D40U-D1 is the one I bought last year and had equally as inconsistent results as you did. Unless I find one really cheap, I think I'll start with a different model. Thanks though!

Did you sell your D40? Only HDMI port 5 gave me inconsistencies. HDM1-4 were rock solid.
RGB0b
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Re: DIY video digitizer & scandoubler

Post by RGB0b »

citrus3000psi wrote:Did you sell your D40? Only HDMI port 5 gave me inconsistencies. HDM1-4 were rock solid.
I returned it a few days after using it. It had 2 frames of lag on HDMI 5 and didn't work with 3x mode on the OSSC, so I figured it wasn't worth keeping.
NJRoadfan
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Re: DIY video digitizer & scandoubler

Post by NJRoadfan »

The thought of a Panasonic OLED set intrigued me after owning one of their plasmas. Turns out Panasonic completed exited the TV market in the USA last year :(

The TVs I've had the best luck with all the OSSC's modes so far have been all Samsungs. They seem to consistently tolerate out of spec signals.
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Re: DIY video digitizer & scandoubler

Post by orange808 »

retrorgb wrote:
citrus3000psi wrote:Did you sell your D40? Only HDMI port 5 gave me inconsistencies. HDM1-4 were rock solid.
I returned it a few days after using it. It had 2 frames of lag on HDMI 5 and didn't work with 3x mode on the OSSC, so I figured it wasn't worth keeping.
A 2016 D series?
We apologise for the inconvenience
RGB0b
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Re: DIY video digitizer & scandoubler

Post by RGB0b »

orange808 wrote:
retrorgb wrote:
citrus3000psi wrote:Did you sell your D40? Only HDMI port 5 gave me inconsistencies. HDM1-4 were rock solid.
I returned it a few days after using it. It had 2 frames of lag on HDMI 5 and didn't work with 3x mode on the OSSC, so I figured it wasn't worth keeping.
A 2016 D series?
Yes. Voultar and I argue about this all the time, since he loves his 50" D-Series and claims it has less then a frame of lag...but I have the pics to prove it: 2 Frames for me.

@NJRoadfan - Yeah, I'll look into Samsung's next week. If I find one, I'll report back.
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Jademalo
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Re: DIY video digitizer & scandoubler

Post by Jademalo »

Holy crap

I bought a broken iScan VP50Pro from ebay the other day, figured it was worth a shot at fixing. Looked literally brand new in the pictures, assumed it might be something like a dodgy power supply or a blown fuse/cap, especially since there's plenty of stuff on the net about people having dodgy VP50Pro PSUs.
Got it yesterday, and the seller just sent a random C13 lead with it, no power supply in sight. I started getting excited at this point, and ordered a replacement PSU from ebay.

Got it today, plugged it in, and the thing works absolutely flawlessly.
I absolutely cannot believe my luck :O


Are there any good guides out there to help configure it for the OSSC?
I've got absolutely no idea where to start, and obviously I want to try and get the best I can out of this thing.
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Xyga
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Re: DIY video digitizer & scandoubler

Post by Xyga »

So how much $? :mrgreen:
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Jademalo
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Re: DIY video digitizer & scandoubler

Post by Jademalo »

Xyga wrote:So how much $? :mrgreen:
£31.06 :mrgreen:
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Xyga
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Re: DIY video digitizer & scandoubler

Post by Xyga »

Lol. As cool as that guy's 1€ garage sale 'broken' pce GT he fixed in a minute I'd say.

Congratulations, I never gamble like that. Dah.
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ZellSF
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Re: DIY video digitizer & scandoubler

Post by ZellSF »

I spent so much time trying to figure out which devices I could use that I had to dig out from various places to get seamless 240p-480i transitions... then I figured out if the OSSC is set to linedouble and bob deinterlace then both my DVDO VP50 and TV can do transitions seamlessly. At a cost to image quality and input lag of course, but for Chrono Cross I think it will suffice.

Unless anyone's found a cheap HDMI to HDMI scaler with no OSD that switches seamlessly of course.
Jademalo wrote:Holy crap

I bought a broken iScan VP50Pro from ebay the other day, figured it was worth a shot at fixing. Looked literally brand new in the pictures, assumed it might be something like a dodgy power supply or a blown fuse/cap, especially since there's plenty of stuff on the net about people having dodgy VP50Pro PSUs.
Got it yesterday, and the seller just sent a random C13 lead with it, no power supply in sight. I started getting excited at this point, and ordered a replacement PSU from ebay.

Got it today, plugged it in, and the thing works absolutely flawlessly.
I absolutely cannot believe my luck :O


Are there any good guides out there to help configure it for the OSSC?
I've got absolutely no idea where to start, and obviously I want to try and get the best I can out of this thing.
It's always so tempting buying broken stuff from eBay, because there's always a pretty huge chance there's something simple. At 30£ for something that's known for faulty PSUs and is ridiculously expensive otherwise I definitely would've bought it if I saw it too.

No one's really written up any DVDO+OSSC guides. It's pretty much all down to personal preference.

Disable cadence detection (stored per input, per resolution) and HDCP or you'll get sync issues.

You might have trouble adjusting horizontal scale in line5x mode (various scale factors will result in artifacts), tweaking horizontal sample rate on the OSSC might help.

Input level and output level should both be set to PC, and your TV should have the corresponding setting set (RGB range, black level, hard to say without knowing which TV you have).

Framerate should be set to 60hz locked.
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marqs
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Re: DIY video digitizer & scandoubler

Post by marqs »

Thomago wrote:Hah... I would have loved to see an output mode other than 1440x960 for 480i Line4x mode. I mean... 1440x960 in and of itself is fine, but as described here (https://www.videogameperfection.com/for ... i480p576p/), the OSSC doesn't actually sample 1440 pixels, but only 720 pixels, which are then doubled. That makes anything that deviates from the standard 640xbla resolution look awful.

Even 720x960 output would be fine as an alternative, but, as far as I can see, there's no way of forcing that (in contrast to 480p Line2x mode).
That's something to look at when adding features/fixes on next fw. 480p x2 was originally designed to particulary use pixel repetition since majority of 480p sources (PC, consoles since DC) use well known CEA/VESA timings. For 480/576i full-width sampling makes more sense since there's lots of older stuff with custom timings.
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Jademalo
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Re: DIY video digitizer & scandoubler

Post by Jademalo »

ZellSF wrote:It's always so tempting buying broken stuff from eBay, because there's always a pretty huge chance there's something simple. At 30£ for something that's known for faulty PSUs and is ridiculously expensive otherwise I definitely would've bought it if I saw it too.

No one's really written up any DVDO+OSSC guides. It's pretty much all down to personal preference.

Disable cadence detection (stored per input, per resolution) and HDCP or you'll get sync issues.

You might have trouble adjusting horizontal scale in line5x mode (various scale factors will result in artifacts), tweaking horizontal sample rate on the OSSC might help.

Input level and output level should both be set to PC, and your TV should have the corresponding setting set (RGB range, black level, hard to say without knowing which TV you have).

Framerate should be set to 60hz locked.

Fantastic, that's exactly the kind of stuff I was looking for, thanks!

I realised yesterday that I had to update it since I couldn't use cadence detection, and it was still on 1.00. I had a USB to serial cable that I was using for my Extron crosspoint too, so I figured it wouldn't be too big of a job. Then of course everything went wrong and I ended up wiping the firmware entirely, lol.
Thankfully I ordered a new cable with the right chipset, and everything updated fine. I did have a bit of a panic earlier though, lol.


EDIT: Also I've been meaning to ask somewhere - Is there any way to get a 1:1 mode with the VP50Pro?
I would quite like to use 2x but capture in 720p for a couple of reasons (mainly since it doesn't support 768x480 out and only 720x480, so the 2x optimised modes don't work and you have to apply 4:3 aspect correction), but I can't figure out if it's possible to do that without extra scaling being added.

Actually, along those lines - Is there any way to tweak generic 4:3 on the OSSC so that the effective output area is 640x480 rather than 720x480? Or so that the x2 output resolution is just 640x480?
Last edited by Jademalo on Mon Jun 05, 2017 6:53 am, edited 2 times in total.
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Thomago
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Re: DIY video digitizer & scandoubler

Post by Thomago »

marqs wrote:That's something to look at when adding features/fixes on next fw.
:D :D :D
marqs wrote:480p x2 was originally designed to particulary use pixel repetition since majority of 480p sources (PC, consoles since DC) use well known CEA/VESA timings. For 480/576i full-width sampling makes more sense since there's lots of older stuff with custom timings.
Just in case: 480p x2 definitely needs full-width sampling too!
h1ghju1ce
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Re: DIY video digitizer & scandoubler

Post by h1ghju1ce »

Jademalo wrote:
I bought a broken iScan VP50Pro from ebay the other day, figured it was worth a shot at fixing. Looked literally brand new in the pictures, assumed it might be something like a dodgy power supply or a blown fuse/cap, especially since there's plenty of stuff on the net about people having dodgy VP50Pro PSUs.
Got it yesterday, and the seller just sent a random C13 lead with it, no power supply in sight. I started getting excited at this point, and ordered a replacement PSU from ebay.

Got it today, plugged it in, and the thing works absolutely flawlessly.
I absolutely cannot believe my luck

Awesome, I had a similar experience with an DVDO HD+ , on ebay for "parts not working" , bought it for £1 :shock:
bought a 3rd party PSU for it for £15, works perfectly

I even got a programmable remote for £6 , and programmed it using the remote from my VP30, so this unit is now my mates birthday present :)
RGB0b
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Re: DIY video digitizer & scandoubler

Post by RGB0b »

I found one 32" Samsung TV that supports all modes and has just under 2 frames of lag in game mode (not bad). It's by no means a great TV, but you can find them very cheap (sub-$200), so in my opinion, it's definitely "good enough": UN32J5003 / UN32J5003AF / UN32J5003AFXZA

I'm going to look into other sizes of this and see if I can find a cheap used one somewhere to test. I don't want to assume the other sizes will work too, as there are too many variables. I just thought I'd share that one though.
RGB0b
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Re: DIY video digitizer & scandoubler

Post by RGB0b »

Has anyone been able to find an HDMI capture card that reliably accepts 3x, 4x and 5x modes? Once again, I'm sorry for the pain-in-the-ass question, but I'm trying to finalize my setup. My Epiphan DVI2USB3 freaks out in all modes and my PEXHDCAP only works reliably in 2x mode.
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Jademalo
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Re: DIY video digitizer & scandoubler

Post by Jademalo »

+1 to that question, I've heard good things about the magewell one (http://www.magewell.com/usb-capture-hdmi) but I've yet to see any actual conclusive post about which modes it definitely supports.
If it can do x5, x5 optim, and x2 optim, then I'm definitely going to try and pick one up.
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