madVR - high quality video renderer (GPU assisted)

[647830]

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

[huhn]

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]

Bit rate : 94.2 Mb/s

Maybe bitrate is too high?

[huhn]

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]

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]

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]

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

[647830]

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]

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]

try it local.

[647830]

try it local.

You were right. When playing it local, it works perfectly!
So this is my LAN, 1Gbit is not enough, and I would have never thought about this, so thank you for your help and support, very helpful!
I just have to upgrade my network to 2.5Gbit or 5.0Gbit now.
Hope this can also help others who might have the same issue.

[Sunspark]

The filesystem of the drive makes a difference too. ExFAT has trouble under certain conditions. If your drive is that filetype, reformat it as NTFS. It might be all that you need to do.

[clsid]

Try to significantly increase the queue settings in LAV Splitter so that it can buffer more data.

A high amount of network activity can also be a cause of the high DPC latency.

File fragmentation on your storage drive can also cause dips in reading speed.

[huhn]

You were right. When playing it local, it works perfectly!
So this is my LAN, 1Gbit is not enough, and I would have never thought about this, so thank you for your help and support, very helpful!
I just have to upgrade my network to 2.5Gbit or 5.0Gbit now.
Hope this can also help others who might have the same issue.

no your nas has just major performance issues. try clsid recommendation.
this is also a possible indicator for a dying disk.
or your nas is running at 100 mbit happens.
1000 mbit is plenty for normal encodes i have/had a couple of files that need NVME disc as a source AVC 1080p120 4:4:4 predictable lossless and stuff like that. nothing lossless encoded should need more then 1000mbit there is a good chance your NAS can't even do that and still more then plenty fast.

Try to significantly increase the queue settings in LAV Splitter so that it can buffer more data.

A high amount of network activity can also be a cause of the high DPC latency.

File fragmentation on your storage drive can also cause dips in reading speed.
i used very high lav settings where i was buffering entire blu ray. this made the issue much worse because the nas was starting to put the disc to sleep. don't over do it!

[VergiL]

Hello everyone, I have just installed mpcbe madvr and lav on my brother's PC (rtx 3050) everything works fine but the change of upscaler and/or processing has no effect on the rendering time (still ~ 14ms).. although CTRL+j tells me the right parameters and is correct. Any idea where this could come from? I would like to point out that I have already installed madvr on several PCs and I have not had this problem.

https://i.goopics.net/800/kbj55m.jpg (https://goopics.net/i/kbj55m)

[Skylinestar]

I have ripped my 1080p bluray via makemkv. I have problem where the PGS subtitle is outside of the video screen area. I want the PGS sub to be inside the video area. I understand PGS is just an image, and could be as large as a 1080p (am I correct?). Is it still impossible for madvr, with MPC-BE player, to shift up this subtitle?

https://i.imgur.com/m6sWfKD.jpeg

[dbcooper]

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 (https://resplendence.com/latencymon).

The recent update preview fixed a problem I was having with using my USB-DAC (introduced in January or December windows updates for win11 2024h2).

[dbcooper]

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

I seem to still be getting a single frame stutter every few minutes. Hopefully recent updates have fixed it.

[GCRaistlin]

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

Unfortunately it reduces the render queue dramatically (from "7-8/8" to "3-5/8") causing a lot of dropped frames from time to time. So I have to refuse either using FSE mode or using 24 Hz and 60 Hz refresh rates. What is the lesser evil? Mostly I watch NTSC films with Reclock at 24 fps.

[Asmodian]

Why would you want to use FSE today?

[GCRaistlin]

Asmodian
MadVR and your graphics driver take full controll of the display, bypassing the Windows desktop manager. This means less interferences from other applications and better clock adjustment = less stutter / less dropped or repeated frames.
https://www.reddit.com/r/htpc/comments/uy3p9v/what_does_the_exclusive_fullscreen_mode_in_madvr/
Isn't it true?

[GCRaistlin]

Also:
[Enabled] madVR has exclusive access to the display, nothing else can draw to the display without dropping out of this mode. This is the most stable mode for madVR because it has the most control over when and how video frames are displayed. There is a slight flicker and delay as madVR enters and exits this mode. Required for 10 bit in Windows 7 or 8.
http://forum.doom9.org/showthread.php?p=1709764#post1709764

I do use 10 bit color depth for my projector (though I'm not sure if FSE required for 10 bit in Windows 8.1).

[huhn]

Why would you want to use FSE today?
to get rid of presentation issues. which are very common at the moment.
Asmodian

https://www.reddit.com/r/htpc/comments/uy3p9v/what_does_the_exclusive_fullscreen_mode_in_madvr/
Isn't it true?
not on win 10 it is by default simulated to get the "real" FSE you need compatibility mode with disabled FSE optimization
Also:

http://forum.doom9.org/showthread.php?p=1709764#post1709764

I do use 10 bit color depth for my projector (though I'm not sure if FSE required for 10 bit in Windows 8.1).

if i remember correctly win 10 added support for WFS 10 bit surface 8 can't do that you may need FSE to have any chance of getting 10 bit.

[GCRaistlin]

huhn
How do I know that 10 bit color depth doesn't work?

[huhn]

this line: https://i.postimg.cc/HW2zrCGg/thisline.png
that is what the GPU driver get's the GPU driver needs to output 10 bit too or else it is dither or worse it to 8 bit.

on the past madVR did never send 10 bit to the nvidia GPU driver when the GPU driver was set to 8 bit. that doesn't seem to be the case anymore and i'm able to send 10 bit to the GPU driver when i'm outputting 8 bit on the GPU (this was results in massive banding in the past).
this was always possible on AMD but no major bugs where known. HDR wasn't working in 8 bit so you known... kind of needed.

[GCRaistlin]

huhn
I opened this png with MPC-HC and made it fullscreen. The picture looks ugly as it stretched vertically. Or what should I do with it?

[huhn]

you read what is on in. the last part tells you if it is 10 bit or not.
if that line in your player with what ever file is saying 10 bit madVr is sending 10 bit.

[GCRaistlin]

What do you mean by "with what ever file"? I can get this line in my player only if I open this and only this file in my player. And I see "(10 bit)".

[huhn]

how do i fix that.

ahhh uff just open any file what so ever anything you like.
now search in your OSD for a line shown in my image usually line 4 and read it that's it.

it should look like the image i shared.

[GCRaistlin]

Thanks, now I got it. "8 bit" unfortunately.

[Rittberg]

Hello,
My system Win 10 x64 , with RTX 4070 super , projecting the image to Sony VPL-XW 7000es.
In order to watch 4K HDR materials I am using the MPC – HC + MadVr ,
The MadVr is calibrated according to the guide in the following link:
https://nicko88.com/misc/madVR settings/
I find that with the above-mentioned calibration selecting “tone map HDR using pixel shaders” in MadVr – dark scene looks excellent.
But when selecting – “Passthrough HDR to display” the darks scene looks with less details but from the other side the all picture is more vibrant.
Is there a way to select “tone map HDR using pixel shaders” option, and to keep the vibrant picture?

Thanks for any Idea .

[toki]

stuttering is driving me crazy! I have windows 11, tried vsync in gpu, power adaptive, high performance in windows, frames in advance to 1 and 3. nothing is working. It was working fine until I had to replace my m.3 drive.

[Asmodian]

Have you turned off 'Hardware Accelerated GPU Scheduling'?

[toki]

It's off in mpc-hc. I have it on dxva2 (native)

[Asmodian]

It is a Windows setting.

For Windows 11 it is in System -> Display -> Graphics -> Advanced graphics settings.

[toki]

so the advanced graphics section kept crashing everytime I tried opening it, ran scans, now it's open, turned off acceleration. Now testing. Will report back... Turning it off seems to have fixed it. Now I'm afraid to update graphics driver, lol. Thanks for the help

[toki]

ok, it didn't fix it, still doing it

[Childofbodom]

ok, it didn't fix it, still doing it

Same for me, Disabling HAGS doesnt fix it! I have also tried MPCVR but the stutter (presentation glitch) issues seem decoder independent as that renderer gives the same glitches on Win 11 24H2.

I had to revert to windows 11 23H2, that is the only way to fix it.

Hope either MadVR gets patched, NVdia fixes their driver OR M$fT fixes its shitty OS.

Fingers crossed..

[Sunspark]

You guys don't have to use Windows 11.. 10 will still be receiving updates to 2032.

[clsid]

Also disable low latency mode in driver settings.

[huhn]

you can also install the newest beta it will not show gliches anymore at least for me the counter isn't there anymore.

[mzso]

Hi!

Is the HDR rendering supposed to be this obnoxiously resource intensive? At first I couldn't figure out why the GPU usage goes so high, went to nearest neighbour on chroma upscaling and such.
But it turns out it's the HDR tone mapping using pixel shaders. It prevents me from having a smooth playback with UHD files.
If I disable it GPU usage drops to like tenth of what it was. But then of course I can't watch the HDR files.

[huhn]

trade quality for performance yes it is supposed to be like that.

[mzso]

trade quality for performance yes it is supposed to be like that.

Which option makes the most sense to be traded?
"compromise on HDR luminance channel quality" seems to free up the most performance. "don't measure HDR frame peak luminance" is barely noticeable. "compromise on HDR tone & gamut mapping accuracy" is somewhere in the middle.

[huhn]

you are asking the wrong person.
i barely experimented with that.
if i remeber corectly "compromise on HDR luminance channel quality" does barely anything positive negative while "compromise on HDR tone & gamut mapping accuracy" is day night. "don't measure HDR frame peak luminance" sounds like it is the most important thing if it comes to DTM without it you are just TM...

[mzso]

you are asking the wrong person.
i barely experimented with that.
if i remeber corectly "compromise on HDR luminance channel quality" does barely anything positive negative while "compromise on HDR tone & gamut mapping accuracy" is day night. "don't measure HDR frame peak luminance" sounds like it is the most important thing if it comes to DTM without it you are just TM...

Thanks.

[Childofbodom]

you can also install the newest beta it will not show gliches anymore at least for me the counter isn't there anymore.

which beta? Measure 207? for me there are still glitches with that one. (on win11 24H2)

[huhn]

beta 208

[ttnuagmada]

Quick question if anyone can answer, I'm too lazy to pull my gear out to test:

So long as MadVR is passing metadata to the display, does it matter if Windows HDR is on? Watching a little bit of content on my C1, I don't see any concerns, but I haven't tested extensively.

[huhn]

just a different API that's it.
it is usually preferred not to use HDR toggled on in windows with madVR and let the other API take over.

please don't use this "logic" for a lack of a better word for other software or games where this is different. Microsoft wants user to use windows HDR for HDR.