madVR - high quality video renderer (GPU assisted) - Page 3283

huhn · 29th January 2025, 10:43

is the video in question AV1 encoded?
or are you using CUVID?

647830 · 29th January 2025, 10:57

Quote:

Originally Posted by huhn

is the video in question AV1 encoded?
or are you using CUVID?

MediaInfo says:

Video
ID : 4113 (0x1011)
Menu ID : 1 (0x1)
Format : HEVC
Format/Info : High Efficiency Video Coding
Format profile : Main 10@L5.1@High
Codec ID : 36
Duration : 1 h 39 min
Bit rate : 94.2 Mb/s
Width : 3 840 pixels
Height : 2 160 pixels
Display aspect ratio : 16:9
Frame rate : 24.000 FPS
Color space : YUV
Chroma subsampling : 4:2:0 (Type 2)
Bit depth : 10 bits
Bits/(Pixel*Frame) : 0.473
Stream size : 65.7 GiB (94%)
Writing library : ATEME Titan File 3.9.4 (4.9.4.12)
Color range : Limited
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709

I am not using CUVID.

GCRaistlin · 29th January 2025, 23:49

Quote:

Originally Posted by GCRaistlin

Epson EH-TW9200, Radeon HD7850, Crimson 17.7.1, Win81x64, MPC-HC and MPC-HC64
In exclusive mode, madVR recognizes 24 Hz screen refresh rate as 23 Hz. As a result, when I play a 24p video I get one dropped frame every 40 seconds instead of every 14 minutes (at least that's what debug OSD says). 50 Hz mode and 60 Hz mode are recognized just fine. What can be done about that?

The solution is [x] hack Direct3D to make 24.000 Hz and 60.000 Hz work

Quote:

Originally Posted by madshi

older Windows 10 versions, and also Windows 8.1, like to switch to 23.976 Hz and 59.940 Hz in FSE mode, even if madVR asks for 24.000 Hz and 60.000 Hz.

huhn · 30th January 2025, 04:51

Quote:

Originally Posted by 647830

MediaInfo says:

Video
ID : 4113 (0x1011)
Menu ID : 1 (0x1)
Format : HEVC
Format/Info : High Efficiency Video Coding
Format profile : Main 10@L5.1@High
Codec ID : 36
Duration : 1 h 39 min
Bit rate : 94.2 Mb/s
Width : 3 840 pixels
Height : 2 160 pixels
Display aspect ratio : 16:9
Frame rate : 24.000 FPS
Color space : YUV
Chroma subsampling : 4:2:0 (Type 2)
Bit depth : 10 bits
Bits/(Pixel*Frame) : 0.473
Stream size : 65.7 GiB (94%)
Writing library : ATEME Titan File 3.9.4 (4.9.4.12)
Color range : Limited
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709

I am not using CUVID.

you are using D3D11 native so it is not a PCIe bandwidth issue.
the file is HEVC 95 mbit that's nothing for a 1000 series hardware decoder.

the hags issues should result in glitches and maybe drops not repeats and audio distortion and is an win 11 issue.

maybe try your luck with the mpc-be internal decoder instead of lavfilter.
there is also reports of mpc-be not working with madVR but that's also on win 11.

this looks more like a decoder issue then a madVR one.

mclingo · 30th January 2025, 12:26

Quote:

Originally Posted by GCRaistlin

The solution is [x] hack Direct3D to make 24.000 Hz and 60.000 Hz work

I get this issue when i'm using wireless headphones, is there anything wireless or bluetooth in your audio stack, although mine doesnt settle to normal after a while so it wont be that i'm guessing.

clsid · 30th January 2025, 15:33

Win11 24H2 had some audio bugs in update from earlier this month. Latest update supposedly fixes (some of) them.

The audio hardware provides the reference clock during playback. So issues with unstable clock deviation are indeed likely coming from audio stack. Such as a buggy driver. But there are also power saving options in Windows that can for example temporarily turn off USB/Bluetooth audio device during inactivity, causing delays when receiving sound again.

In case of audio issues always check DPC Latency.

clsid · 30th January 2025, 15:34

Disabling Hardware-Accelerated GPU Scheduling has worked for several people to fix the sudden presentation glitch stuttering problems on Win11 24H2.

Bedouille69 · 30th January 2025, 16:50

Quote:

Originally Posted by clsid

Disabling Hardware-Accelerated GPU Scheduling has worked for several people to fix the sudden presentation glitch stuttering problems on Win11 24H2.

Yes it's the only fix and it requires a reboot to be effective.

647830 · 31st January 2025, 08:14

Thank you for all your replies. However I have win10 1806 (Oct '18) precisely to try avoiding such issues. So the problem is likely elsewhere. Maybe an HDCP issue? My PC is connected to my AVR through HDMI so it is GTX1080 (2.2 compliant) connected to my AVR (also 2.2 compliant). My NVCP shows a supported HDCP link, but in windows settings / sound, under my AVR it says HDCP not supported. Strange. I will also investigate latency as suggested. Looks like it is a sound issue through HDMI although i am not sure.

huhn · 31st January 2025, 12:40

it's clearly a decoding issue if there would be a sound issue the queue wouldn't drop.

just use a NULL renderer to test.

647830 · 31st January 2025, 15:05

Yes you are right huhn, using NULL renderer for sound does not address the issue. Should i change my PC and/or GPU?

huhn · 31st January 2025, 17:32

the issue doesn't make sense the GPU can decode that so the CPU shouldn't matter.

a hardware decoder shouldn't fall behide ever but that seems to be the case here.
try the build in decoder from mpc-be. try lavfilter software to figure out what is going on first.

lvqcl · 31st January 2025, 18:29

Quote:

Originally Posted by 647830

Bit rate : 94.2 Mb/s

Maybe bitrate is too high?

huhn · 31st January 2025, 19:32

that's below UHD blu ray spec should be a clear no.
even a 960 can do that with ease.
pascal is far far better.

647830 · 31st January 2025, 19:35

Tried MPC-BE built-in decoder, but the issue remains. From time to time frame rate drops as low as 14 or even below (movie is 24).
It happens only on some movies, all are UHD, so maybe too high bitrate (video + Dolby Atmos) for my set-up to render properly?
I also did a latency check with LatencyMon, it was not very good and I stopped some processes o/w Defender antivirus live monitoring but not sufficient. In windows task manager however GPU does not exceed 25%, CPU and RAM max 20%. And video also stops from time to time in Kodi built-in player with this movie (although i unticked DXVA2 acceleration as otherwise the movie with green/pink).

Sunspark · 31st January 2025, 19:35

There's a contradiction here.

>Windows 10 22H2 build 19045.5247
>I have win10 1806 (Oct '18)

Are you talking two separate machines/partitions?

Rule out the USB bus for the skips. Copy the media file to your internal boot drive and see if it still happens there.

huhn · 31st January 2025, 19:42

yes your storage is maybe to slow or if it is lan you need 1gbit for UHD BD 100 mbit is not enough

647830 · 31st January 2025, 19:51

Quote:

Originally Posted by Sunspark

There's a contradiction here.

>Windows 10 22H2 build 19045.5247
>I have win10 1806 (Oct '18)

Are you talking two separate machines/partitions?

Rule out the USB bus for the skips. Copy the media file to your internal boot drive and see if it still happens there.

Yes, I restored a backup this morning, that's why, but same issue with both versions...

647830 · 31st January 2025, 19:53

Quote:

Originally Posted by huhn

yes your storage is maybe to slow or if it is lan you need 1gbit for UHD BD 100 mbit is not enough

It is lan 1gbit with synology nas.

huhn · 31st January 2025, 20:09

try it local.

30th January 2025, 15:33	#65646 \| Link
clsid ***** Join Date: Feb 2005 Posts: 5,712	Win11 24H2 had some audio bugs in update from earlier this month. Latest update supposedly fixes (some of) them. The audio hardware provides the reference clock during playback. So issues with unstable clock deviation are indeed likely coming from audio stack. Such as a buggy driver. But there are also power saving options in Windows that can for example temporarily turn off USB/Bluetooth audio device during inactivity, causing delays when receiving sound again. In case of audio issues always check DPC Latency. __________________ MPC-HC 2.4.0

30th January 2025, 15:34	#65647 \| Link
clsid ***** Join Date: Feb 2005 Posts: 5,712	Disabling Hardware-Accelerated GPU Scheduling has worked for several people to fix the sudden presentation glitch stuttering problems on Win11 24H2. __________________ MPC-HC 2.4.0

31st January 2025, 19:35	#65655 \| Link
647830 Registered User Join Date: Dec 2024 Posts: 11	Tried MPC-BE built-in decoder, but the issue remains. From time to time frame rate drops as low as 14 or even below (movie is 24). It happens only on some movies, all are UHD, so maybe too high bitrate (video + Dolby Atmos) for my set-up to render properly? I also did a latency check with LatencyMon, it was not very good and I stopped some processes o/w Defender antivirus live monitoring but not sufficient. In windows task manager however GPU does not exceed 25%, CPU and RAM max 20%. And video also stops from time to time in Kodi built-in player with this movie (although i unticked DXVA2 acceleration as otherwise the movie with green/pink). Last edited by 647830; 31st January 2025 at 19:38.

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29th January 2025, 10:43	#65641 \| Link
huhn Registered User Join Date: Oct 2012 Posts: 8,341	is the video in question AV1 encoded? or are you using CUVID?

31st January 2025, 08:14	#65649 \| Link
647830 Registered User Join Date: Dec 2024 Posts: 11	Thank you for all your replies. However I have win10 1806 (Oct '18) precisely to try avoiding such issues. So the problem is likely elsewhere. Maybe an HDCP issue? My PC is connected to my AVR through HDMI so it is GTX1080 (2.2 compliant) connected to my AVR (also 2.2 compliant). My NVCP shows a supported HDCP link, but in windows settings / sound, under my AVR it says HDCP not supported. Strange. I will also investigate latency as suggested. Looks like it is a sound issue through HDMI although i am not sure.

31st January 2025, 12:40	#65650 \| Link
huhn Registered User Join Date: Oct 2012 Posts: 8,341	it's clearly a decoding issue if there would be a sound issue the queue wouldn't drop. just use a NULL renderer to test.

31st January 2025, 15:05	#65651 \| Link
647830 Registered User Join Date: Dec 2024 Posts: 11	Yes you are right huhn, using NULL renderer for sound does not address the issue. Should i change my PC and/or GPU?

31st January 2025, 17:32	#65652 \| Link
huhn Registered User Join Date: Oct 2012 Posts: 8,341	the issue doesn't make sense the GPU can decode that so the CPU shouldn't matter. a hardware decoder shouldn't fall behide ever but that seems to be the case here. try the build in decoder from mpc-be. try lavfilter software to figure out what is going on first.

31st January 2025, 19:32	#65654 \| Link
huhn Registered User Join Date: Oct 2012 Posts: 8,341	that's below UHD blu ray spec should be a clear no. even a 960 can do that with ease. pascal is far far better.

31st January 2025, 19:35	#65656 \| Link
Sunspark Registered User Join Date: Nov 2015 Posts: 620	There's a contradiction here. >Windows 10 22H2 build 19045.5247 >I have win10 1806 (Oct '18) Are you talking two separate machines/partitions? Rule out the USB bus for the skips. Copy the media file to your internal boot drive and see if it still happens there.

31st January 2025, 19:42	#65657 \| Link
huhn Registered User Join Date: Oct 2012 Posts: 8,341	yes your storage is maybe to slow or if it is lan you need 1gbit for UHD BD 100 mbit is not enough

31st January 2025, 20:09	#65660 \| Link
huhn Registered User Join Date: Oct 2012 Posts: 8,341	try it local.