100 % CPU utilization in new windows10 PC

[#thweiss]

I started a new Ticket "4k video with AV1-Codec freeze by playing" in the Bug-Tracker under the Link:

- https://trac.videolan.org/vlc/ticket/24922#ticket

[plaurits]

Thanks a lot thweiss.
Pls. let me know if you need any more info from my side.
Br Peter

[Jean-Baptiste Kempf]

You need to share the VLC logs then.

[plaurits]

already done earlier in this thread, repeated here
log added as https://pastebin.com/zrMuwvxu and screenshot into https://ibb.co/CbbRtLq

[InTheWings]

fine, that’s almost the same I am observing. And almost same pattern with 5k player.

How is that surprising since that's an hidden VLC inside

[InTheWings]

Processor: Intel(R) Core(TM) i5-8265U CPU @ 1.60GHz (8 CPUs), ~1.8GHz

If that's AV1 >= 4K or any other codec 8K, that's CPU decoded.
I don't think low power CPU can do this, even with 8 threads.

[InTheWings]

The downloaded 4k-Youtube-Video "COSTA RICA IN 4K 60fps HDR (ULTRA HD).mp4" start and play for some Secounds, bevor the Image stand and the Audio plays alone.

I tested with "D3D9 Output" in VLC-Player 3.0.11 (64-Bit) and got 100% CPU-Power with 15% GPU-usage.

- Windows 10
- CPU Intel Core i7-9700
- Intel UHD Graphics 630
- 25"-Monitor 2.560×1.440 Pixel

Content is 10-Bit 60 fps AV1.
I highly doubt even 8 full cores from i7-9700 can achieve this in real time

[InTheWings]

No SIMD for AV1 10bit yet.

No issue then, that can't work.

[#thweiss]

I will add a Link to an other 4k Video to compare it, which will play fine on the same Computer.

4k Video-Example "[4K UHD]_Cyberpunk 2077 — New Official Trailer — The Gig.webm"
https://we.tl/t-ZBnxCNV3q1

Code: Select all

General Complete name : C:\Temp\[4K UHD]_Cyberpunk 2077 — New Official Trailer — The Gig.webm Format : WebM Format version : Version 4 File size : 171 MiB Duration : 2 min 14 s Overall bit rate : 10.7 Mb/s Writing application : Lavf58.29.100 Writing library : Lavf58.29.100 Video ID : 1 Format : VP9 Codec ID : V_VP9 Duration : 2 min 14 s Width : 3 840 pixels Height : 2 160 pixels Display aspect ratio : 16:9 Frame rate mode : Constant Frame rate : 60.000 FPS Color space : YUV Language : English Default : Yes Forced : No Color range : Limited Color primaries : BT.709 Transfer characteristics : BT.709 Matrix coefficients : BT.709 Audio ID : 2 Format : Opus Codec ID : A_OPUS Duration : 2 min 14 s Channel(s) : 2 channels Channel layout : L R Sampling rate : 48.0 kHz Bit depth : 32 bits Compression mode : Lossy Language : English Default : Yes Forced : No

[plaurits]

Hi
Let's focus on issue with AV1 coded mp4 as described in ticket.
As mentioned this same video is playing fine with Movie & TV app in windows10 as soon as you install AV1 extension
br
Peter

[plaurits]

link to AV1 extension
https://www.microsoft.com/en-us/p/av1-v ... verviewtab

[#thweiss]

Amazing, after download and install the "AV1 Codec" I could play the 4k Video in "Movies & TV" with constantly, small Jerks in my other Computer.

Windows 10
Intel Core i5-2500 CPU @ 3.30GHz
NVIDIA GeForce GTX 750 Ti
25"-Monitor 2.560×1.440 Pixel

CPU Workload: 53%
GPU Workload: 15-32%

[plaurits]

Yes, I have observed exactly the same on same PC which has issue playing with VLC.

[Lotesdelere]

Content is 10-Bit 60 fps AV1.
I highly doubt even 8 full cores from i7-9700 can achieve this in real time

Maybe not, but the point is that it's playing better with any other player.

[plaurits]

No, since movie and TV app can do the job, issue is with VLC - exactly as mentioned in ticket.

[InTheWings]

Hi
Let's focus on issue with AV1 coded mp4 as described in ticket.
As mentioned this same video is playing fine with Movie & TV app in windows10 as soon as you install AV1 extension
br
Peter

Same Video or same file ?

[plaurits]

Yes, exact same video shared at https://e.pcloud.link/publink/show?code ... YH0kzwkc9y is playing fine on my DS10U5 with with "movie & TV" app.
But same video with VLC goes to appr. 100% CPU since GPU apparently is not used.

[plaurits]

Hi forum
I see following note in ticket
“10bit 60fps AV1 without SIMD..
wait for 10 bit SIMD”
When is support of this expected?

[plaurits]

Does anybody have some update here?