Welcome to Doom9's Forum, THE in-place to be for everyone interested in DVD conversion.

Before you start posting please read the forum rules. By posting to this forum you agree to abide by the rules.

 

Go Back   Doom9's Forum > Hardware & Software > Software players

Reply
 
Thread Tools Search this Thread Display Modes
Old 21st December 2019, 15:39   #58181  |  Link
huhn
Registered User
 
Join Date: Oct 2012
Posts: 7,903
8 bit at the gpu level madVR both?
did you disable dithering for some reasons?
huhn is offline   Reply With Quote
Old 21st December 2019, 19:32   #58182  |  Link
VBB
Registered User
 
VBB's Avatar
 
Join Date: May 2016
Location: Long Beach, CA, USA
Posts: 620
Quote:
Originally Posted by adhara View Post
Hi guys,

Is 10bits bug fixed in windowed mode for those using Nvidia graphic card ?

So what's the best mode to use for 4K output (HDR and non HDR): FSE or Windowed ?

Thx
I recently switched to 10-bit, and I haven't noticed any issues. This is with latest Windows 10, which doesn't support FSE any longer. So, even if you set madVR to FSE, the output will be in FSW mode. madRV OSD will confirm this.
__________________
Henry | LG OLED65C7P | Denon AVR-X3500H | ELAC Uni-Fi x7 | ELAC Debut 2.0 SUB3030 x2 | NVIDIA SHIELD TV Pro 2019 | Plex
VBB is offline   Reply With Quote
Old 21st December 2019, 19:43   #58183  |  Link
VBB
Registered User
 
VBB's Avatar
 
Join Date: May 2016
Location: Long Beach, CA, USA
Posts: 620
@mparade - Are you using PC mode on the C9? That would explain the severe banding in HDR. If you can't live without 4:4:4, try setting the driver to YCbCr 4:4:4 8-bit, madVR to 8-bit for both SDR and HDR. You'll still see some banding, especially in HDR, but that's as good as it gets in PC mode. If you can do without 4:4:4, change the C9 to regular HDMI mode, set the driver to YCbCr 4:2:2 10-bit, madVR to 10-bit. In both cases the TV needs to be set to Black Level Low.

BTW, there's another thread that's better suited for OLED discussion.
__________________
Henry | LG OLED65C7P | Denon AVR-X3500H | ELAC Uni-Fi x7 | ELAC Debut 2.0 SUB3030 x2 | NVIDIA SHIELD TV Pro 2019 | Plex
VBB is offline   Reply With Quote
Old 21st December 2019, 20:13   #58184  |  Link
shimarin
Registered User
 
Join Date: Nov 2019
Posts: 9
Are the bar graphs in the scaling section accurate for both upscaling and downscaling?
shimarin is offline   Reply With Quote
Old 21st December 2019, 22:45   #58185  |  Link
chros
Registered User
 
chros's Avatar
 
Join Date: Mar 2002
Posts: 2,323
Quote:
Originally Posted by mparade View Post
Thanks. I tried today the 8-bit output as well. Severe banding still very visible in homogenous flat areas on my calibrated LG C9V. Using Oppo-203 there is no such visual annoying issues.
What output your Oppo is set to? Are you only talking about HDR? (My chinese Oppo clone is on the way )
__________________
Ryzen 5 2600,Asus Prime b450-Plus,16GB,MSI GTX 1060 Gaming X 6GB(v398.18),Win10 LTSC 1809,MPC-BEx64+LAV+MadVR,Yamaha RX-A870,LG OLED77G2(2160p@23/24/25/29/30/50/59/60Hz) | madvr config
chros is offline   Reply With Quote
Old 21st December 2019, 23:05   #58186  |  Link
Klaus1189
Registered User
 
Join Date: Feb 2015
Location: Bavaria
Posts: 1,666
Do you have a link of the oppo clone?
Klaus1189 is offline   Reply With Quote
Old 22nd December 2019, 00:33   #58187  |  Link
mparade
Registered User
 
Join Date: Nov 2013
Posts: 577
Quote:
Originally Posted by chros View Post
What output your Oppo is set to? Are you only talking about HDR? (My chinese Oppo clone is on the way )
Color Space: YCbCr 4:2:2
Color Depth: Auto
Output Resolution: Custom
Custom Resolution: UHD Auto

Yes, only HDR movies have this annoying banding effect.
mparade is offline   Reply With Quote
Old 22nd December 2019, 01:11   #58188  |  Link
VBB
Registered User
 
VBB's Avatar
 
Join Date: May 2016
Location: Long Beach, CA, USA
Posts: 620
Color Space: YCbCr 4:2:2

That is why.
__________________
Henry | LG OLED65C7P | Denon AVR-X3500H | ELAC Uni-Fi x7 | ELAC Debut 2.0 SUB3030 x2 | NVIDIA SHIELD TV Pro 2019 | Plex
VBB is offline   Reply With Quote
Old 22nd December 2019, 10:57   #58189  |  Link
mparade
Registered User
 
Join Date: Nov 2013
Posts: 577
Quote:
Originally Posted by huhn View Post
8 bit at the gpu level madVR both?
did you disable dithering for some reasons?
Yes. Both are set to 8-bit. I did not disable dithering.
I would check it's current setting. Both LAVVideo and madVR has dithering setting, right?
mparade is offline   Reply With Quote
Old 22nd December 2019, 12:02   #58190  |  Link
Asmodian
Registered User
 
Join Date: Feb 2002
Location: San Jose, California
Posts: 4,406
When using madVR's LAVVideo's dither settings do not come into effect, they are only for rare use cases and should pretty much always be left as default.
__________________
madVR options explained
Asmodian is offline   Reply With Quote
Old 22nd December 2019, 13:19   #58191  |  Link
mparade
Registered User
 
Join Date: Nov 2013
Posts: 577
Quote:
Originally Posted by VBB View Post
Color Space: YCbCr 4:2:2

That is why.
Thank you very much. When using settings proposed by you above, I can get rid of banding indeed but I got other very annoying visual things like: almost black grey bars and dull picture (with black level set to low of course both in madvr and OLED). Using Oppo I got black bars and for me visually excellent picture using the same input and picture settings on my TV. Maybe, Oppo is conjuring something magical before sending the signal to the OLED.

Last edited by mparade; 22nd December 2019 at 13:27.
mparade is offline   Reply With Quote
Old 22nd December 2019, 13:45   #58192  |  Link
QBhd
QB the Slayer
 
QBhd's Avatar
 
Join Date: Feb 2011
Location: Toronto
Posts: 697
madVR should stay set to 0-255 in this use case.

QB
__________________
QBhd is offline   Reply With Quote
Old 22nd December 2019, 13:46   #58193  |  Link
SamuriHL
Registered User
 
SamuriHL's Avatar
 
Join Date: May 2004
Posts: 5,351
Set madvr to 0 to 255 levels else the video gets double compressed which is what you're experiencing.

Sent from my SM-G975U using Tapatalk
__________________
HTPC: Windows 11, AMD 5900X, RTX 3080, Pioneer Elite VSX-LX303, LG G2 77" OLED
SamuriHL is offline   Reply With Quote
Old 22nd December 2019, 15:53   #58194  |  Link
mparade
Registered User
 
Join Date: Nov 2013
Posts: 577
Thanks! It solved the issue! WOW!
mparade is offline   Reply With Quote
Old 22nd December 2019, 19:47   #58195  |  Link
VBB
Registered User
 
VBB's Avatar
 
Join Date: May 2016
Location: Long Beach, CA, USA
Posts: 620
Glad it worked
__________________
Henry | LG OLED65C7P | Denon AVR-X3500H | ELAC Uni-Fi x7 | ELAC Debut 2.0 SUB3030 x2 | NVIDIA SHIELD TV Pro 2019 | Plex
VBB is offline   Reply With Quote
Old 23rd December 2019, 10:31   #58196  |  Link
chros
Registered User
 
chros's Avatar
 
Join Date: Mar 2002
Posts: 2,323
Quote:
Originally Posted by Klaus1189 View Post
Do you have a link of the oppo clone?
Its offical name is M9702 and current version is v3, and its official page. (There are plenty of yt videos in various languages about it.)
__________________
Ryzen 5 2600,Asus Prime b450-Plus,16GB,MSI GTX 1060 Gaming X 6GB(v398.18),Win10 LTSC 1809,MPC-BEx64+LAV+MadVR,Yamaha RX-A870,LG OLED77G2(2160p@23/24/25/29/30/50/59/60Hz) | madvr config

Last edited by chros; 23rd December 2019 at 10:41.
chros is offline   Reply With Quote
Old 23rd December 2019, 11:12   #58197  |  Link
Klaus1189
Registered User
 
Join Date: Feb 2015
Location: Bavaria
Posts: 1,666
Thanks, I have an original 203 but worth to look at all possibilities.
Klaus1189 is offline   Reply With Quote
Old 23rd December 2019, 12:32   #58198  |  Link
el Filou
Registered User
 
el Filou's Avatar
 
Join Date: Oct 2016
Posts: 896
Quote:
Originally Posted by shimarin View Post
Are the bar graphs in the scaling section accurate for both upscaling and downscaling?
It's just a coarse indication of each algo's characteristics but probably not a scientific measurement. For example, the sharpness graph doesn't change much between the different NGU variants even though Sharp is much sharper than Antialias.
__________________
HTPC: Windows 10 22H2, MediaPortal 1, LAV Filters/ReClock/madVR. DVB-C TV, Panasonic GT60, Denon 2310, Core 2 Duo E7400 oc'd, GeForce 1050 Ti 536.40
el Filou is offline   Reply With Quote
Old 23rd December 2019, 13:36   #58199  |  Link
mparade
Registered User
 
Join Date: Nov 2013
Posts: 577
Quote:
Originally Posted by SamuriHL View Post
Set madvr to 0 to 255 levels else the video gets double compressed which is what you're experiencing.

Sent from my SM-G975U using Tapatalk
Strange...I would have thought that an other chain should be working. In this way, source is being converted twice, by madVR and the GPU:

source Limited Range 16-235 -> (madVR) PC levels (0-255) -> (GPU) Limited Range 16-235 -> (Display) 16-235

and somehow this seems to be the solution.
mparade is offline   Reply With Quote
Old 23rd December 2019, 17:38   #58200  |  Link
nevcairiel
Registered Developer
 
Join Date: Mar 2010
Location: Hamburg/Germany
Posts: 10,344
Source to madVR is not much of a conversion, because it's simply part of the YCbCR -> RGB conversion. But yes the GPU then compresses the range.

If your display expects limited range, you can avoid the GPU compressing the range by setting madVR to limited range, and GPU to full range. However this has the downside that the range of everything that's not madVR is wrong - which matters if you do gaming or use the system for anything but madVR playback.

These two combinations are the only choice for a limited range display, because the desktop itself is always full range.
__________________
LAV Filters - open source ffmpeg based media splitter and decoders
nevcairiel is offline   Reply With Quote
Reply

Tags
direct compute, dithering, error diffusion, madvr, ngu, nnedi3, quality, renderer, scaling, uhd upscaling, upsampling

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +1. The time now is 23:56.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.