Devices > Video Cards, Monitors, Televisions, and Projectors
Display Settings Automatic Change Mode
tij:
I am not sure its possible to send "native" 4:2:0 to TV … if madVR is used, then madVR will at least do chroma up sampling to 4:4:4
But assuming you don't care about chroma up sampling … keep switching resolution from 1080p to 2160p to PAL/NTSC will play havoc with you DPI settings (change the size if text, and other items) unless you set it at 100%
If you truly want to send "untouched" signal to TV … you can set your MC output Zone to your TV (LG OLED are DLNA renderers if connected to network)
As for madVR scaling vs LG scaling … it really depends on GPU your PC has … IMHO madVR more advance scaling algorithm do produce better results but need good GPU (my 2016 LG does do good scaling) … but honestly, I don't think I can tell difference in double blind test lol (what I like about madVR is adjustment I can make VS total no control of LG process)
tij:
--- Quote from: IAM4UK on August 24, 2019, 08:33:28 pm ---Since y'all are obviously well-informed, I'll ask another related question that probably is not an MC thing: When I watch HDR content via MC, all content I watch after that is played back as if it were HDR, even if it's not. Rebooting the computer is the only way to reset that; simply restarting MC isn't enough. Thoughts?
--- End quote ---
That sounds like HDR getting stuck after playback … and Windows colors looks super saturated after that
You need to update Windows to fix that … don't remember which version though
Also, what GPU you use?
wer:
--- Quote from: tij on August 24, 2019, 08:35:11 pm ---If you truly want to send "untouched" signal to TV … you can set your MC output Zone to your TV (LG OLED are DLNA renderers if connected to network)
--- End quote ---
Ah of course, I had forgotten. Tij is quite correct. You can use Zoneswitch to send different video files to different zones (zone=output configuration) based on whatever rules you want, so you can have 1080 output in one zone and 2160 in the other. That would allow you to do it without relying on madvr mode switching.
I still recommend letting madvr do the NTSC upscaling.
tij:
--- Quote from: IAM4UK on August 24, 2019, 08:33:28 pm ---I will dig into the madVR options.
--- End quote ---
Before you dig into madVR … you need to understand a bit how it works.
Unlike PC (where your picture is broken down to Red Green Blue … aka RGB), video distribution is broken down to YCbCr (Y is the luma component and Cb and Cr are the blue-difference and red-difference chroma components … basically Y is greyscale image, and Cb and Cr carry color information)
video distribution is done in 4:2:0 … basically color components are provided at lower resolution (only 25% … see attached picture)
So steps to display 4:2:0 are
(1) up sample chroma to 4:4:4
(2) scale image to final resolution … which involve scaling luma and chroma to final resolution … always use better algorithm for luma scaling
thing to keep in mind … sometimes its more efficient to overscale by using doubling or quadrupling then downscale to final desired resolution (there are options in MadVR for that)
When video is playing … press CTR+J to display madVR menu … from there you can see how long MadVR takes to process you settings … processing time should be less than fps or you will have frame drops (if you doing scaling for 23.97fps … your processing should take less than 1/23.97 = 0.0417s = 41.7ms … aim for 75%-80% of that to give you some head room)
MadVR can be set up to apply different algorithms depending on content resolution and/or frame rate … but that's another topic
tij:
Also … madVR does not do deinterlacing … and MC "hides" deinterlacing options which can be set in LAV filter
I have PAL DVDs of Simpsons and Futurama … theoretically, if PAL was mastered properly, deinterlacing PAL should be easier … but Futurama and Simpsons PAL DVDs were terribly mastered … in this case LG did a better deinterlacing job than MC (less combing effects … not sure if MC would have done better if I had access to deinterlacing options) … in the end, I just hunted down second hand NTSC DVDs for Simpsons and Futurama and MC performed on par with LG on deinterlacing
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