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Old 17th January 2020, 15:13   #58381  |  Link
stefanelli73
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Quote:
Originally Posted by huhn View Post
the trade for quality option has no effect on path through.
the point of path through it that the image is not touched and you get different results depending on the API which shows there is clearly an issue.
that TRADE QUALITY FOR PERFORMANCE option, has no effect on the hdr passthrough I also know for what I have specified that I have used it for the tone mapping of madvr
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Old 17th January 2020, 15:37   #58382  |  Link
el Filou
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What mclingo meant is that there is/was (?) a bug affecting RX 5700 users, where if madVR itself switches the card to HDR mode, it then outputs Bt.709 colour space instead of Bt.2020, so the image is seriously (not slightly) undersaturated.
If you did not encounter this issue when you used passthrough and let madVR do the switch then it means something is different on your RX 5700 system, or the bug has been fixed.
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Old 17th January 2020, 16:09   #58383  |  Link
oldpainlesskodi
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The bug is still there in the latest 20.1.2 drivers.
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Old 17th January 2020, 18:35   #58384  |  Link
DMU
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Quote:
Originally Posted by el Filou View Post
it then outputs Bt.709 colour space instead of Bt.2020, so the image is seriously (not slightly) undersaturated.
Minor fix:
It then outputs Bt.709 colour space flag instead of Bt.2020, so the image is seriously (not slightly) undersaturated. If on your TV you can forcefully select BT.2020 color space, then the image will be normal.
AMD APU with Vega iGPU has same issue.
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Old 17th January 2020, 20:08   #58385  |  Link
mclingo
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Hi,this is rough representation of what I am seeing with RX 5700 bug, beginning of bladerunner 2049

https://1drv.ms/u/s!AgvFafeelEBij75e...ll3yw?e=nM5M1Y
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Last edited by mclingo; 17th January 2020 at 20:22.
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Old 18th January 2020, 01:44   #58386  |  Link
Asmodian
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Yes, that looks like what I would expect from that bug.
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Old 18th January 2020, 02:39   #58387  |  Link
WuNgUn
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Man!
On a Plex media group on Facebook...
People trying to tell me their Firestick is a better renderer than a decent HTPC with MadVR/LAV upscaling, etc played thru Jriver MC or equivalent....
Some people's kids...
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Old 18th January 2020, 11:17   #58388  |  Link
DMU
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Quote:
Originally Posted by mclingo View Post
Hi,this is rough representation of what I am seeing with RX 5700 bug, beginning of bladerunner 2049

https://1drv.ms/u/s!AgvFafeelEBij75e...ll3yw?e=nM5M1Y
I would say a too much rough representation. In reality is not so scary.
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Last edited by DMU; 18th January 2020 at 11:19.
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Old 18th January 2020, 21:38   #58389  |  Link
mclingo
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yes, its not quite as bad as that, its not far off though, those red gloves look orange on my system as well as washed out.
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Old 19th January 2020, 00:35   #58390  |  Link
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Do you have to be in YCbCr/YUV format to subsample chroma data? I heard RGB doesn't support it...
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Old 19th January 2020, 01:49   #58391  |  Link
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Yes, subsampling chroma requires having the chroma separate from the luma.

RGB has these concepts mixed together, changing R (or G/B) changes both the chroma and the luma values. The chroma is Cb and Cr (color information) while the luma is Y (black and white information). Subsampling the chroma is simply resizing the Cb and Cr channels to 960x1080 (422) or 960x540 (420) for nominally 1920x1080 video.

YCbCr is an odd concept, originally developed to make color TV signals backwards compatible with black and white TVs (well it is the digital version of YUV, the analog version of this concept). You could make red and blue half the resolution of green for a similar (but much worse) kind of subsampling but no hardware actually supports such a terrible quality option. Doing the matrix math to first convert to YCbCr is definitely worth it if you want to subsample.
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Last edited by Asmodian; 19th January 2020 at 01:58.
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Old 19th January 2020, 16:46   #58392  |  Link
Milez7494
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I've used MadVR for a while now and noticed it's not been updated in a while.

I'm not asking when the next update is going to come out but does anyone know what the status of the project is? Madshi doesn't look like he's posted here since the last update.

Genuinely curious since MadVR appears to be a very popular piece of software. It's strange that the developer would go nearly a year without letting the community know what's going on (I'm not saying that we're entitled to this or that Madshi owes us anything).
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Old 19th January 2020, 17:16   #58393  |  Link
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He is still working on it. He was just very busy with another project as well. You can expect a new version sometime in the coming months with a cool new advanced dynamic tonemapping algorithm. You can follow development details on another forum.
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Old 19th January 2020, 19:25   #58394  |  Link
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any idea why on W7/HD7850/1080p60 DVI any kind of NGU is now randomly running in B&W when using FS(E or not), windowed is fine and also any other kind of doubler. I haven't changed anything
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Old 20th January 2020, 22:36   #58395  |  Link
SirMaster
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Quote:
Originally Posted by Milez7494 View Post
I've used MadVR for a while now and noticed it's not been updated in a while.

I'm not asking when the next update is going to come out but does anyone know what the status of the project is? Madshi doesn't look like he's posted here since the last update.

Genuinely curious since MadVR appears to be a very popular piece of software. It's strange that the developer would go nearly a year without letting the community know what's going on (I'm not saying that we're entitled to this or that Madshi owes us anything).
There have actually been 113 (plus a few extra) beta builds of madVR since the last official release as madshi has been aggressively tweaking and improving the HDR to SDR tone-mapping.

He doesn't want to do an official release until it's all just right.
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Old 21st January 2020, 05:07   #58396  |  Link
Magik Mark
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Guys,

Can you help me create a profile that would do the ff:

If video has letter box and black bar width will not fit 2 rows of subtitle then move image to top and subtitle to the bottom of the screen
else move subtitle to the bottom of the screen only
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Old 21st January 2020, 05:36   #58397  |  Link
huhn
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madVR doesn't know how big the subtitles are

and even if madVR could do that it would mean the image could be moved alot why would you want that.

just move it to the top all the time this way the image doesn't move from time to time.
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Old 21st January 2020, 21:10   #58398  |  Link
Wilmar
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Hi everyone!
I can’t make HDR work properly with madVR and PotPlayer + 4K HDR-capable TV.
I enabled HDR in madVR settings – screenshot.
My MadVR settings config is here.
The TV says it’s getting HDR image. However, the colours don’t look HDR at all. Moreover, when played via the TV directly, the video looks properly. But playing it via the PC results in faded, dull and dark image.
I tried enabling and disabling Windows HDR – to no avail.
Here’s what PotPlayer says about the video with Windows HDR enabled and disabled respectively.
No Windows HDR
Windows HDR
Am I doing something wrong?
Thanks.

My configuration:
Windows 10 64 bit 1903
Nvidia Geforce 1080Ti (Driver ver. 441.87)
MadVR ver. 0.92.17
PotPlayer 1.7.18346
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Old 21st January 2020, 21:14   #58399  |  Link
clsid
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The screenshot shows "HDR: unknown properties", meaning it can't find the HDR metadata.

Use LAV Video decoder. Disable the internal video decoder and video processor in Potplayer.
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Old 22nd January 2020, 18:09   #58400  |  Link
SirMaster
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Here is a question I always wondered.

On the "trade quality for performance page":

https://i.postimg.cc/prp3BTy5/trade_...erformance.png

There is the option "scale chroma separately, if it saves performance".

Is this really lower quality? And why or in what way would it be lower quality when enabling the option? Why shouldn't we always have that option enabled?
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