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Old 22nd August 2019, 22:55   #57181  |  Link
okc_smoker
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I'm having a strange issue I'm hoping someone here will be able to help with. A number of video files are failing to play in MPC-HC with MadVR as the renderer. MPC opens, but it just stays Paused. Clicking Play or Stop does nothing. If I switch the renderer to System Default or Enhance Video Renderer they play fine. It's not crashing or anything, so there's no error to report. They just don't play. Google has proved unhelpful, so I'm hoping someone here might have some ideas.
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Old 23rd August 2019, 00:48   #57182  |  Link
JarrettH
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I know madshi and his updates (and he's working on making it commercial), but it's coming up to a year next month. At least 0.92.17 has been solid for my purposes.
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Old 23rd August 2019, 01:33   #57183  |  Link
toki
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Quote:
Originally Posted by okc_smoker View Post
I'm having a strange issue I'm hoping someone here will be able to help with. A number of video files are failing to play in MPC-HC with MadVR as the renderer. MPC opens, but it just stays Paused. Clicking Play or Stop does nothing. If I switch the renderer to System Default or Enhance Video Renderer they play fine. It's not crashing or anything, so there's no error to report. They just don't play. Google has proved unhelpful, so I'm hoping someone here might have some ideas.
I have actually been having this same problem. I just close mpc-hc in task manager and open again and it works.
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Old 23rd August 2019, 14:43   #57184  |  Link
x7007
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Quote:
Originally Posted by mclingo View Post
There are two minor issues I am aware of.

1 - I have an issue where colours/reds are blown out with SDR material sub 60hz, I have tried any of the new drivers so I dont know whether its fixed. You will only see it if you are setup for HDR / 10 bit though. This can easily be fixed though on my system by setting up madvr calibration to BT2020.

2. The is a bug in MADVR when using 3D, if your desktop is 4k and you play a 3D MVC movie, when it comes out of the movie and drops back to 4k you get HDMI loss, there are lots of ways around this.

Some people have reported banding in some situations, i've never seen any ever, I have a 2015 4k LG EF950v OLED.

I'm currently using a RX 580, its good for NGU high but I usually run it at medium or low in to keep heat and noise down, i generally find there is no distinguishable differce between high and low for me anyway.
So is it not fixed with latest 19.8.1 ?

I have OLED LG C6 55"
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Old 23rd August 2019, 15:37   #57185  |  Link
svengun
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Originally Posted by nevcairiel View Post
That option would be absolutely terrible for a video player.

If anything you should enable it on a per-game basis, not globally, since it can interact badly with any sort of games as well if they rely on the graphics driver to provide buffering for smooth rendering.
I tried it out yesterday (global) , did zero effect for playback ...
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Old 23rd August 2019, 15:41   #57186  |  Link
okc_smoker
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Originally Posted by toki View Post
I have actually been having this same problem. I just close mpc-hc in task manager and open again and it works.
In my case, I think it had to do with using D3D11 as the decoder in LAV Video. I need to do some more testing, but I think changing it to DXVA2 may have fixed it. I'm just hoping that won't be a step down in quality.
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Old 23rd August 2019, 17:59   #57187  |  Link
toki
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Quote:
Originally Posted by okc_smoker View Post
In my case, I think it had to do with using D3D11 as the decoder in LAV Video. I need to do some more testing, but I think changing it to DXVA2 may have fixed it. I'm just hoping that won't be a step down in quality.
I haven't had the problem after it happening for the 1st couple of times. It only did it like maybe 2 to 5 times total.
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Old 23rd August 2019, 19:46   #57188  |  Link
Asmodian
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When using copy-back DXVA2 is the same quality as D3D11, there is only a difference when using Native decoding.
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Old 23rd August 2019, 20:27   #57189  |  Link
mclingo
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Originally Posted by x7007 View Post
So is it not fixed with latest 19.8.1 ?

I have OLED LG C6 55"

It may will be, i'm running 19.2.2, i dont upgrade any more unless I have to, no point as there have been no major updates to MADVR, this issues are minor for me, happy to stay as is.

Note this problem goes back as far as 16.8.x.x so i dont hold out any hope of it ever gettting fixed but i'm just not bothered as my system is 100 % working no frame drops or banding.
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Old 23rd August 2019, 21:21   #57190  |  Link
mclingo
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i tried the latest, still not fixed, seems fine otherwise.
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Old 24th August 2019, 09:18   #57191  |  Link
DMU
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5700/5700XT owners please check HDR passthrough at 8 bit in madVR devices->properties.
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Old 24th August 2019, 09:42   #57192  |  Link
oldpainlesskodi
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What issue are you looking for?

Update - HDR engages, but the image is washed out set at 8bit. Why would you want to set HDR at 8bit?
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Last edited by oldpainlesskodi; 24th August 2019 at 09:52.
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Old 24th August 2019, 10:44   #57193  |  Link
DMU
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To match the driver settings of the video card - UHD/8bit/RGB/60Hz. Nvidia has no problem with this.

Last edited by DMU; 24th August 2019 at 11:00.
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Old 24th August 2019, 10:49   #57194  |  Link
huhn
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if it is washed out you either set it up incorrectly or it doesn't work with AMD or your TV.
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Old 24th August 2019, 10:51   #57195  |  Link
oldpainlesskodi
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Works fine with HDR set at 10 bit (Madvr device properties), so Im not sure I understand what you are saying?
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Old 24th August 2019, 11:06   #57196  |  Link
huhn
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AMD API need 10 bit input no matter what to trigger HDR.
you have to wait for madshi to update the AGS to even have a chance for 8 bit HDR.
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Old 24th August 2019, 11:07   #57197  |  Link
DMU
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oldpainlesskodi thanks. You are correct. AMD still does not support 8 bit HDR from madVR.
huhn, are you think the problem is at madVR only?

Last edited by DMU; 24th August 2019 at 11:14.
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Old 24th August 2019, 11:16   #57198  |  Link
oldpainlesskodi
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Quote:
Originally Posted by huhn View Post
AMD API need 10 bit input no matter what to trigger HDR.
you have to wait for madshi to update the AGS to even have a chance for 8 bit HDR.
Ok. With it set at 10 bit in Madvr device properties, 60hz HDR kicks in with correct colors fine (obviously at 60hz the output to the screen is 8bit using Full RGB).

So, I'll ask again, why would you want to set Madvr to 8bit to watch HDR? Isnt 10bit part of the HDR spec?
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Last edited by oldpainlesskodi; 24th August 2019 at 11:22.
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Old 24th August 2019, 11:19   #57199  |  Link
skydreamer888
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@madshi

Nowadays the bandwidth of DisplayPort 1.2 or 1.4 is not enough for monitors with combination of high resolution, high refresh rate and 10-bit. Those monitors require compromises like lowering refresh rate, lowering bit depth to 8-bit or chroma subsampling depending what target you want to achieve.

It is possible to implement an automatic switch of combinations of resolution, refresh rate, bit depth and color format in madVR?

Thank you.

Last edited by skydreamer888; 24th August 2019 at 11:22.
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Old 24th August 2019, 11:22   #57200  |  Link
huhn
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HDR is not 10 bit and clearly not RGB on UHD BD. your TV supports 8 bit RGB so it has to be a spec.
video encoding/presentation and processing are very different things. 8 bit panels in Tv are very common even in flag ships and that's fine if the processing is fine too.

and why would you want to set madVR to 8 bit why not? sending 10 bit to the driver so it will change it to 8 bit is clearly not good.
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