Severe stuttering for 5-8K videos - only some

[Green_Bastard]

New Index owner here...just getting used to this but I notice that some videos - only from certain sources are unwatchable at higher than 4K. (severe stuttering/framerate) Yet other work just fine. I have HVEC codes installed and pretty good hardware (RTX 2070, Ryzen 2700x) -- is there a certain bitrate/encoding or something that can be problematic?

[Bl00dyMary]

if your 5k and above videos use avc codec above L5... there will be no hw acceleration.
use hvec (h265) codec instead and you'll get proper hw accleration stutter free playback

[Snow]

Had the same problem.
Use MermaidVR. No stutter.

[76561199129841526]

use NVidia control panel , left side manage 3d settings, program settings tab, select a program on the pull down list find the DEOVR Player and select it or add it if not found in the pull down, then go to power management and choose the
NVIDIA LOGO's PREFER MAXIMUM PERFORMANCE, click apply and see if that helps.
Also in the viewing room of Mixed reality there are windows apps sometimes running in the background, x them out and remove them from your room, perhaps even run a gaming boost to remove unecessary things running in your memory and shut down anything else that may be running in the background that you never fully shut down, because many apps have no exit, so you need to remove them through task manager-end task.

[Delacroix]

me too.. not working 8kvideo.. black screen

[76561199129841526]

if you get black screen you might need the latest LAV filters downloaded and it should tell you this.

[76561199129841526]

This might help some, I found mine was off and haven't tested it yet:
enable hardware acceleration:
Hardware acceleration is where certain processes - usually 3D graphics processing - is performed on specialist hardware on the graphics card (the GPU) rather than in software on the main CPU. In general you should always enable hardware acceleration as it will result in better performance of your application.
Find Hardware Accelerated GPU Scheduling in Settings
Open Start Menu and tap on Settings cog icon.
In Settings, click on 'System' and open 'Display' tab.
Under the “Multiple Displays” section, select “Graphics settings”.
Turn on “Hardware-accelerated GPU scheduling” option.
Restart the system.

but also check before restart:
First turn off in settings -Gaming-the game recordings
turn on game mode in settings-gaming-game mode
turn off in settings-gaming-captures-background recording and also turn off audio recording

[76561199129841526]

OK finally got rid of 90% of the stutter on 5-8k vids, only VR being buggy does sometimes a stutter occur, which is not the settings fault.
If you didn't pin Lav filters configuration properties to your start menu you will need to reinstall the latest filter .74.1 and choose to save to start menu then because of some glitch in the start menu it won't show up as an icon in your windows apps start menu you must choose it at the start menu "recently added" (top ofg the list), select the 3properties config files related to lav filters and select to pin them all to start so you can always change configs as needed. When installing it allows you to set the properties but without it being in your access menu only installing will allow you to change configs.
So that in mind
in LAV Video configuration you want video settings tab, go to hardware acceleration pull down and if you have Nvidia GPU you select Nvidia Cuvid, now it will use your GPU instead of maxing out your cpu. If you have another type of graphics card then choose DXVA2 copyback which will allow your blacked out hardware to be selectable to your graphics card, once again allowing gpu to accelerate your decoding of the coded video not the CPU.
Let me know if that solves your problems it did mine, an 8k video was flawless sound and all when I test it out.

[Z1 阿遠]

can not play video 6k or 8k too

[76561199129841526]

does it crash the player and take steam vr with it? This just started happening to me last few days as I got everything finally to work perfect. You can't win with these headsets, there's always something and by time you get it straightened out, your batteries die. *L*

[TROCH22]

Originally posted by Bl00dyMary:

if your 5k and above videos use avc codec above L5... there will be no hw acceleration.
use hvec (h265) codec instead and you'll get proper hw accleration stutter free playback

how do you do this?

[76561199129841526]

They might be talking about during creation not playback, your best bet is to install the latest windows 10 codec pack and k-lite codec pack and it will give you at startup a codec settings tweek whereby you should choose CUVID acceleration for your NVidia card if you have one. Your codec might be using cpu not gpu otherwise. I am able to get stutter free videos for some at a short time but then it crashes, so if you are crashing then you are better off with the stutter with hardware acceleration off then constant crashes with your GPU being used. Until they find a fix. I thought I had fixed it, because some videos performed stutter free, but it was just a tease.

[tommy vercetti]

Originally posted by Consumer Advocate:

This might help some, I found mine was off and haven't tested it yet:
enable hardware acceleration:
Hardware acceleration is where certain processes - usually 3D graphics processing - is performed on specialist hardware on the graphics card (the GPU) rather than in software on the main CPU. In general you should always enable hardware acceleration as it will result in better performance of your application.
Find Hardware Accelerated GPU Scheduling in Settings
Open Start Menu and tap on Settings cog icon.
In Settings, click on 'System' and open 'Display' tab.
Under the “Multiple Displays” section, select “Graphics settings”.
Turn on “Hardware-accelerated GPU scheduling” option.
Restart the system.

but also check before restart:
First turn off in settings -Gaming-the game recordings
turn on game mode in settings-gaming-game mode
turn off in settings-gaming-captures-background recording and also turn off audio recording

Turn on “Hardware-accelerated GPU scheduling” option. DO NOT DO THIS windows h/a is not what you may think, set your pc to ultimate performance, its hidden so search it, i cant remember exactly how, but will give 20% more than max. perf.

[jBird]

just try...
settings -> Developer -> Unity Player turn OFF

[tommy vercetti]

that answer should work, if not reset k-lite codec in k-lite 'codec tweak tool' and mess about with stuff in it, you wont break owt ,if it goes tits up reset, try again,repeat............ good luck 😁

[SKY]

Originally posted by Consumer Advocate:

OK finally got rid of 90% of the stutter on 5-8k vids, only VR being buggy does sometimes a stutter occur, which is not the settings fault.
If you didn't pin Lav filters configuration properties to your start menu you will need to reinstall the latest filter .74.1 and choose to save to start menu then because of some glitch in the start menu it won't show up as an icon in your windows apps start menu you must choose it at the start menu "recently added" (top ofg the list), select the 3properties config files related to lav filters and select to pin them all to start so you can always change configs as needed. When installing it allows you to set the properties but without it being in your access menu only installing will allow you to change configs.
So that in mind
in LAV Video configuration you want video settings tab, go to hardware acceleration pull down and if you have Nvidia GPU you select Nvidia Cuvid, now it will use your GPU instead of maxing out your cpu. If you have another type of graphics card then choose DXVA2 copyback which will allow your blacked out hardware to be selectable to your graphics card, once again allowing gpu to accelerate your decoding of the coded video not the CPU.
Let me know if that solves your problems it did mine, an 8k video was flawless sound and all when I test it out.

To get the other 10% on some vids, in Nvidea control panal, go to "Manage 3D setting" and turn "Power Management mode" settings to "Prefer maximum performance".