Hardware trancoding issue artifcting

[sutt359 2]

Hi Guys

 

Been using emby for a very long time but thought i would do some upgrades to my system for 4k movies.

 

Ive installed a Nvidia Quadro p600 for hardware transcoding which works a treat on 1080/720p but when it comes to 4k, i get artifcting and the image brakes up.

 

I set emby back to CPU and it works fine converting 4k down 1080/720

 

When im home i can watch 4k direct play just fine, but when out and about i can watch where i left off at a lower quality.

 

This is going via firefox or edge and the windows 10 app.

 

My system

Hp Microserver Gen8

Windows server 2019

CPU Xeon E3-1260L

16GB ram

GPU Nvidia Quadro p600 2gb

 

Most recent from Nv

Nvidia Version: R430 U5 (431.70) WHQL

Release Date: 2019.7.29

Edited August 22, 2019 by sutt359

[Luke 42083]

Hi there, let's look at an example. Please attach the information requested in how to report a media playback issue. thanks !

[sutt359 2]

[Happy2Play 9783]

Please post the corresponding ffmpeg log.

[sutt359 2]

Just trying to work that out

embyserver.txt

embyserver-63702028800.txt

ffmpeg-transcode-f1ccd951-0e19-4032-b7a7-1ae2382d3071_1.txt

hardware_detection-63702058750.txt

Edited August 22, 2019 by sutt359

[Luke 42083]

As a test, if you disable hardware acceleration under server transcoding settings, does that make a difference?

[sutt359 2]

As a test, if you disable hardware acceleration under server transcoding settings, does that make a difference?

 

Yes if hardware acceleration is turned off it does work correctly and don't see any issues. But does send the cpu to 100% as expected

[Luke 42083]

Thanks, @@softworkz will review this.

[Happy2Play 9783]

Yes if hardware acceleration is turned off it does work correctly and don't see any issues. But does send the cpu to 100% as expected

 

Can you test with only HWA encoding enabled, then only HWA decoding enabled.

Edited August 22, 2019 by Happy2Play

[Luke 42083]

Yea and vice versa. Those would be good tests that would help softworkz.

 

Please also state your driver version in the first post. Thanks.

[sutt359 2]

Driver details added to first post

 

With decoders ticked and encoders un-ticked same issue.

 

With decoders un-ticked and encoders ticked no issue as CPU is at 100%

[Luke 42083]

Ok so it sounds like the decoder is responsible. Thanks.

[sutt359 2]

Ok so it sounds like the decoder is responsible. Thanks.

Is that a Nvidia or Emby issue?

[Luke 42083]

Please see post #8. Thanks.

[softworkz 5072]

Is that a Nvidia or Emby issue?

 

First, I'd say that it's not a matter of FullHD vs. 4k

It's rather an issue of decoding HEVC 10bit video with Nvidia Quadro.

 

Which makes it a known issue.

 

The good news is that we do have a Quadro in the lab for testing now, but it will take a little more time until we get to it.

 

The instant/preliminary solutions for you are either:

• DX11VA NVIDIA Quadro P600 - H.265 (HEVC)

  (try the DXVA Decoder)

  ...

  or

  ...

• Stick to CPU decoding

 

You should activate throttling in both cases.

 

The fact that you're seeing 100% CPU doesn't necessarily mean that your CPU is too weak or not suitable for the job.

It could be, but we'd need to see an ffmpeg log for this case to be sure.

Maybe the CPU is just slower than the hardware encoder. That's no problem as long as it's fast enough to decode at 1.0x speed.

Edited August 24, 2019 by softworkz

[Luke 42083]

This will be resolved in the upcoming Emby Server 4.4 release. Thanks.