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Old 27th March 2018, 21:13   #49861  |  Link
sneaker_ger
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Quote:
Originally Posted by MrGlasspoole View Post
Win 8.1/Skylake-S (HD 530)
[...]
I tried the "madVR low-end preset for low-end GPUs such as Intel built-in GPUs" settings from LAV Filters Megamix (https://anime.my/tutorials/watching-...uda/#checklist) - which should be madVR default anyway.
Dropped frames all over the place...
Even on 4K H.264-AVC MPEG-4 [29.970fps][19Mbps][8bits]...
Show us the OSD (ctrl+j, then screenshot). Maybe RAM is too low? Then you can lower queue sizes (madvr settings -> "rendering" -> "general settings"). Or does this not happen because it can use the system RAM which is plenty?

Last edited by sneaker_ger; 27th March 2018 at 21:16.
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Old 27th March 2018, 22:27   #49862  |  Link
MrGlasspoole
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8GB RAM and task manager says 38% usage.
MPC-HC CPU usage goes up to 70% with madVR and QS in LAV.
With copy-back it's ~45%

With EVR the Sony HEVC 59/60fps Videos work up until ~25 seconds and sometimes one minute. Then the sound starts to stutter and slowly the Frame rate in the MPC-HC statistics window is going down.

The attachment is:
4K H.264-AVC MPEG-4 [60.000fps][8-35Mbps][8bits][DD 5.1 (AC-3)] Big Buck Bunny
in madVR.

With EVR this movies video is smooth but sound is totally out of sync. Sync Offset, dropped and Jitter show all 0.
Attached Images
 

Last edited by MrGlasspoole; 27th March 2018 at 22:32.
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Old 27th March 2018, 22:53   #49863  |  Link
mclingo
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Sorry guys to bang on about my colour issues again but DCP-P3 is defo not right, still far too red. I've found something else though which i'm hoping might give someone an idea whats going on and its an odd one... this problem stops and reverts colour too normal when I play a movie in 60hz instead of the correct res of 23,976, yup, WTF???

I first thought, well it must be invoking a different profile on my TV so I changed a few settings on 60hz, stopped the movie, went back to 23hz and the settings were still changed so its not a profile on my TV, surely someone must have an idea whats going on now?

anyone?


EDIT - just to make sure I wasnt going made, i've test EVR renderer in 23/60 hz, no issues so has to be an issue with MADVR, not sure what to do with this now, I cant watch everything in 60hz

Last edited by mclingo; 27th March 2018 at 23:06.
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Old 27th March 2018, 22:53   #49864  |  Link
Warner306
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Originally Posted by Axelpowa View Post
I think not, but Im not sure right now.

So far I remember I have nothing active at the tab of color and gamma.

Regards!
I found an old post from madshi that claims disable calibration controls sends the source gamut, so you shouldn't be too far off. That could have changed in subsequent builds.

I would suggest trying DCI-P3. Although your projector claims it is displaying Rec.2020, it is almost guaranteed it is less than 100% of DCI-P3. There is a fair difference between the size of the two gamuts.

If selecting DCI-P3 and turning off gamma processing doesn't fix anything, then I don't know what is going on.
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Old 27th March 2018, 23:15   #49865  |  Link
Manni
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Originally Posted by Warner306 View Post
I found an old post from madshi that claims disable calibration controls sends the source gamut, so you shouldn't be too far off. That could have changed in subsequent builds.

I would suggest trying DCI-P3. Although your projector claims it is displaying Rec.2020, it is almost guaranteed it is less than 100% of DCI-P3. There is a fair difference between the size of the two gamuts.

If selecting DCI-P3 and turning off gamma processing doesn't fix anything, then I don't know what is going on.
BT2020 is the correct setting on the JVC for HDR content. What counts is not the native gamut (it is true that the JVC reaches about DCI-P3, not BT2020), but the content is encoded into a BT2020 container, so to display it properly you have to select a BT2020 color profile, which will use BT2020 saturations. If you use DCI-P3, the color is right at the edge, but not inside the gamut. If you use BT2020, the color is right always (and clipped/tonemapped when it goes beyond the native capacity of the display).

DCI-P3 is irrelevant for consumer content. Unless you only use MadVR, which can convert to any gamut you want, BT2020 is the correct option.

So selecting DCI-P3 in MadVR would only be correct if a DCI-P3 calibration was made in the JVC, which isn't an option unless you create and upload with the Autocal software a specific DCI-P3 colour profile. Out of the box, the correct choice is therefore BT2020 if you want a wide color gamut, and so BT2020 should also be specified in MadVR, otherwise the colors will be wrong inside the gamut.
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Last edited by Manni; 27th March 2018 at 23:41.
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Old 27th March 2018, 23:35   #49866  |  Link
mclingo
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right.

I managed to finally get some decent shots of whats going on here and i'm right about BT2020 being the best fit on my setup, still no idea why.

check these out.

Left to right, (1) standard EVR render, (2) calibration off in MADVR, (3) calibration on in MADVR set to DCI-P3, (4) calibration on in MADVR set to BT3030

https://www.dropbox.com/s/c1ob95e391...mage7.jpg?dl=0

Even with my mobile phones poor performance its managed to capture some differences in saturation at least, obviously in person the EVR and BT2020 look more natural than this.

Last edited by mclingo; 27th March 2018 at 23:49.
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Old 27th March 2018, 23:40   #49867  |  Link
Warner306
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Originally Posted by Manni View Post
BT2020 is the correct setting on the JVC for HDR content. What counts is not the native gamut (it is true that the JVC reaches about DCI-P3, not BT2020), but the content encoded into a BT2020 container, so to display it properly you have to select a BT2020 color profile, which will use BT2020 saturations. If you use DCI-P3, the color is right at the edge, but not inside the gamut. If you use BT2020, the color is right always (and clipped/tonemapped when it goes beyond the native capacity of the display).

DCI-P3 is irrelevant for consumer content. Unless you only use MadVR, which can convert to any gamut you want, BT2020 is the correct option.

So selecting DCI-P3 in MadVR would only be correct if a DCI-P3 calibration was made in the JVC, which isn't an option unless you create and upload with the Autocal software a specific DCI-P3 colour profile. Out of the box, the correct choice is therefore BT2020 if you want a wide color gamut, and so BT2020 should also be specified in MadVR, otherwise the colors will be wrong inside the gamut.
Ok, sounds convincing.
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Old 27th March 2018, 23:58   #49868  |  Link
ryrynz
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Quote:
Originally Posted by StinDaWg View Post
Is this an Nvidia bug? madVR? Windows?
I'm using 390.77, I'd recommend giving that a shot.

Warner, can you calm down on your quoting? You can edit the quotes down in size like I did above.
I swear half this thread is useless full post quotes...

Last edited by ryrynz; 28th March 2018 at 00:01.
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Old 28th March 2018, 00:08   #49869  |  Link
maxkolonko123
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Originally Posted by Warner306 View Post
This was covered in great length over the past couple of days. Set it to RGB to avoid color conversions and the loss of chroma upscaling when anything besides 4:4:4 is sent.
I think u didnt understood me

When i set PC label on lg and set full range RGB 8bit colors are fine, but they look same as YCbCr 422 10bit etc, like i dont see any difference.

When i set HDMI label on LG and set full RGB 8bit then black i way over dark, but when i set it to YCbCr 422 10bit or YCbCr 444 8bit its fine ( and the colors looks like full RGB on PC label )

So do you mean i should leave on PC label and set to full RGB 8bit ?

cheers
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Old 28th March 2018, 00:12   #49870  |  Link
mclingo
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Originally Posted by mclingo View Post
right.

I managed to finally get some decent shots of whats going on here and i'm right about BT2020 being the best fit on my setup, still no idea why.

check these out.

Left to right, (1) standard EVR render, (2) calibration off in MADVR, (3) calibration on in MADVR set to DCI-P3, (4) calibration on in MADVR set to BT3030

https://www.dropbox.com/s/c1ob95e391...mage7.jpg?dl=0

Even with my mobile phones poor performance its managed to capture some differences in saturation at least, obviously in person the EVR and BT2020 look more natural than this.

EDIT, i've installed an ancient version of MADVR/LAV/AMD drivers, guess what, no longer broken, these are all from aug 2016.

so to see if it is MADVR I installed the latest MADVR on top of the old LAV/AMD drivers, broken again.

I'll see if I can work out at what point this broke in MADVR, MADSHI might then be able to work out what was done, might take me a while though so if anyone has an idea which version this problem started with please let me know.

I'm currently on V09024, will start working forwards.
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Old 28th March 2018, 00:24   #49871  |  Link
mclingo
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ok, got that wrong, this old version of MADVR didnt have use DIRCT3D11 tick, it turns out this is actually whats causing the problem, eveything was ok until I ticked that, so there are now three ways to stop this problem,. 3 bits of evidence.


- Put my TV in PC mode - problems goes away
- turn off refresh rate switching and play movie at 60hz
- turn of use DIRECT3D11

I might be even more baffled now
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Old 28th March 2018, 00:26   #49872  |  Link
Warner306
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Originally Posted by maxkolonko123 View Post
When i set HDMI label on LG and set full RGB 8bit then black i way over dark, but when i set it to YCbCr 422 10bit or YCbCr 444 8bit its fine ( and the colors looks like full RGB on PC label )

So do you mean i should leave on PC label and set to full RGB 8bit ?

cheers
The idea is the same...

On the HDMI label of your display, change the HDMI black level to full range. This might be set by default on the PC label. The black level could have a number of names depending on the display, so you may have to search for it in the menus.

Then, set it as follows:

(madVR) RGB Full -> (GPU) RGB Full -> (Display) RGB Full

This treats your display as a PC monitor as it is connected to a PC.

As for your choice of bit depth, read the discussion that starts here: https://forum.doom9.org/showthread.p...67#post1836967
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Old 28th March 2018, 00:47   #49873  |  Link
maxkolonko123
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Originally Posted by Warner306 View Post
The idea is the same...

On the HDMI label of your display, change the HDMI black level to full range. This might be set by default on the PC label. The black level could have a number of names depending on the display, so you may have to search for it in the menus.

Then, set it as follows:

(madVR) RGB Full -> (GPU) RGB Full -> (Display) RGB Full

This treats your display as a PC monitor as it is connected to a PC.

As for your choice of bit depth, read the discussion that starts here: https://forum.doom9.org/showthread.p...67#post1836967
Ok cool now it make sense, cause tbh with you buddy im kinda noobish in all this

Madvr i have set to RGB full, black levels are set to low on hdmi port.

One more question for you, i use my lg mostly for hdr/4k movies i dont do much playing at all, so would i benefit more from full RGB 8bit rather then YCbCr 422 10bit?
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Old 28th March 2018, 01:01   #49874  |  Link
Warner306
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Originally Posted by maxkolonko123 View Post
One more question for you, i use my lg mostly for hdr/4k movies i dont do much playing at all, so would i benefit more from full RGB 8bit rather then YCbCr 422 10bit?
You can set your desktop to 8-bit RGB at 60Hz. Then play a movie with a 24 fps frame rate and return to the GPU control panel. Set it to 10/12-bits. That way, you don't have to compromise. The desktop remains at RGB Full and video playback remains at RGB Full; and the video playback is at 10-bits, not 8-bits.
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Old 28th March 2018, 01:08   #49875  |  Link
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got a nice easy workaround in place for my color issues - ive setup two profiles, HDR and SDR, HDR has DIRECT3d on SDR has it off, seems to work a treat.

If (HDR) "HDR"

If (not HDR) "SDR"
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Old 28th March 2018, 01:16   #49876  |  Link
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Originally Posted by Warner306 View Post
You can set your desktop to 8-bit RGB at 60Hz. Then play a movie with a 24 fps frame rate and return to the GPU control panel. Set it to 10/12-bits. That way, you don't have to compromise. The desktop remains at RGB Full and video playback remains at RGB Full; and the video playback is at 10-bits, not 8-bits.
I did try your way, by setting RGB full 8bit in desktop then play movie and try to change it to 10bit but, highest i can set over RGB is 8bit, only on YCbCr 422 i can set to 10-12bit.

Next thing what i notice is :

When set RGB full 8bit and left black level on tv to low ( which is when is way to dark) and opened madshi chrome pattern i can clearly see 422 but i cant see 444 only small shade of it. But when i change black level to high ( then is not over dark ) i cant see any number on pattern, either 422 or 444.

When i set YCbCr 422 i can see clearly both number 422 and 444 ( 422 is brightish and 444 is darkish font )

But when i set RGB full on PC label input on tv the 422 number is visible but kinda like fainting, but 444 is really clearly then so it's like opposite to what i can see over HDMI label input and PC label input.

So my question is what i should see or what should be more visible over another in what mode ? cause this is really confusing for me

Last edited by maxkolonko123; 28th March 2018 at 01:55.
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Old 28th March 2018, 01:55   #49877  |  Link
Warner306
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Originally Posted by maxkolonko123 View Post
Highest i can set over RGB is 8bit, only on YCbCr 422 i can set to 10-12bit
Did you play a 24 fps video and return to the GPU control panel while it was playing? Start at 8-bits RGB. You set different values for lower refresh rates.
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Old 28th March 2018, 01:58   #49878  |  Link
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Originally Posted by mclingo View Post
got a nice easy workaround in place for my color issues - ive setup two profiles, HDR and SDR, HDR has DIRECT3d on SDR has it off, seems to work a treat.

If (HDR) "HDR"

If (not HDR) "SDR"
Have you tried using the calibration settings posted by ratings.com for your display? This is good enough to consider your display calibrated.
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Old 28th March 2018, 01:59   #49879  |  Link
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Did you play a 24 fps video and return to the GPU control panel while it was playing? Start at 8-bits RGB. You set different values for lower refresh rates.

Yeah i did, but other funny thing as well is that whenever i try to change refresh rate from 59hz in nvidia, to any other like 23hz 24hz etc, its automatically change back to 59hz

I do see P010, 10bit, 4:2:0 in madvr osd though

I tried it either with 4k movie in HDR and SDR 1080p movie

madvr osd on 1080p 24 fps movie is like that : h264, 8bit, 4:2:0 -> NV12, 8bit, 4:2:0

With HDR movie madvr doesnt have the second part after 4:2:0 like u see above in 1080p movie osd

Last edited by maxkolonko123; 28th March 2018 at 02:09.
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Old 28th March 2018, 02:38   #49880  |  Link
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Originally Posted by maxkolonko123 View Post
One more question for you, i use my lg mostly for hdr/4k movies i dont do much playing at all, so would i benefit more from full RGB 8bit rather then YCbCr 422 10bit?
Yes, madVR has very good chroma scaling and 10 bit is a very small improvement over 8 bit with high quality dithering.

YCbCr 4:2:2 loses 1/3 of the video data, both chroma channels are resized to half of their resolution horizontally by the GPU. This also requires converting the RGB output of madVR to YCbCr first and then the display converting back to RGB how ever it does.
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