Problems playing 4k movie files

[teaguejr]

Hello,

I have a problem that I can't solve, tried searching the internet with no success.

I had to reinstall Windows because of software problems. But when I played a 4k movie my CPU's max load was 8%. When I now play a movie on VLC the CPU load is 100% and on PotPlayer 55%. VLC is even having problems with 1080 movie files (100% CPU load), PotPlayer/WMP only has a max CPU load of 5% when it plays 1080 movie files.

What I have done:

Tried VLC 3.0.0 nightly build and set it to use DXVA:
-Tools -> Preferences -> Video Output = Automatic-- Tools -> Preferences -> Input/Codecs
- Hardware accelerated decoding = DXVA 2.0

Then saved, exited and restarted VLC.

Set it to use DXVA3 aka D3D11:
- Tools -> Preferences -> Video Output = D3D11
- Tools -> Preferences -> Input/Codecs Hardware accelerated decoding = D3D11 Video Acceleration

Then saved, exited and restarted VLC.
With Potplayer I did the same also DXVA 2.0 coding.

GPU drivers are up to date.
Added VLC and PotPlayer on Nvidia Whitelist, didn't helped. It even backfired for PotPlayer it went to use 100% CPU

VLC is broken, when I just open it, with nothing running, my CPU goes 100%

This was working before I reinstalled Windows, but now somehow it doesn't.
How can I fix it?

Specs:

OS: Windows 10 Pro 64 bit
CPU: i5-7600 3.5 Ghz
Memory: Corsair Vengeance LPX 16GB 3000MHz DDR4
GPU: Nvidia GeForce GTX 1070 (8GB)
HD: Seagate Barracuda 1 TB

 

[James Mason]

maybe you need a codec pack? https://www.codecguide.com/download_kl.htm

 

[teaguejr]

maybe you need a codec pack? https://www.codecguide.com/download_kl.htm

Can you see somewhere which codecs you have or miss?

 

[James Mason]

there's like tons of codecs out there, so it's kinda just better to grab them a whole bunch of them.
That's really the only reason I could think of for VLC not playing 4k videos right.

 

[teaguejr]

there's like tons of codecs out there, so it's kinda just better to grab them a whole bunch of them.
That's really the only reason I could think of for VLC not playing 4k videos right.

I renamed VLC and is playing now normally, exept the 4k file not.
That's still a high CPU usage ( 60% ). For the rest it's behaving good

 

[James Mason]

depending how the 4k video is encoded, high cpu usage is expected because the cpu has to decode it.
for example, this 8k-60fps video will crush your CPU:
https://www.youtube.com/watch?v=1La4QzGeaaQ

 

[teaguejr]

depending how the 4k video is encoded, high cpu usage is expected because the cpu has to decode it.
for example, this 8k-60fps video will crush your CPU:
https://www.youtube.com/watch?v=1La4QzGeaaQ

Ye rip my pc , but I don't have a 8k screen.
Weird thing is even on 4k it uses a lot of CPU ( 60% ), other YT 4k content 6% max CPU
Like this 1 https://www.youtube.com/watch?v=iNJdPyoqt8U&t=18s ( Costa Rica in 4k-60 FPS )

But before I didn't had this problem, it uses max 8% CPU.

 

[James Mason]

are you only testing it with one video?
I was trying to illustrate that it depends how the video is made that determines how CPU intensive it is.

 

[teaguejr]

are you only testing it with one video?
I was trying to illustrate that it depends how the video is made that determines how CPU intensive it is.

Atm yes, but getting an other 1 to check if the problem is consistent and that 1 worked before