SOLVED: Inconsistent success in playback

[TheDreadPirate]

Use this table to check the correct boxes.  The "Rocket Lake" column.

https://en.wikipedia.org/wiki/Intel_Quic...d_encoding

In the Jellyfin Transcoding dashboard, the list of codecs at the top are codecs you are telling Jellyfin to use the GPU to DEcode.  If they are unchecked the video will be decoded on the CPU.  These only apply when a client needs a video transcoded.

"Allow encoding in HEVC format" can be checked to enable encoding to HEVC for supported clients.  You can also check both tone mapping boxes.

Thanks, I could map most of it, but of course it is not 1-to-1 with the Jellyfin settings which makes it a bit confusing.

There are a couple of areas I couldn't figure out:

1. Some hardware encoding (H264 and AV1) work but not at certain bit depths, is there a way to distinguish that in Jellyfin? It seems like it is all or none
   
2. It is unclear what the RExt things are, I just marked them yes
   
3. I couldn't find a definite answer on the low-power H264 and HEVC encoding options for Rocket Lake.
   
4. Also, I read about the VPP tone mapping and some people were saying not to use it over OpenCL but that was three years ago. Has that changed?
   

[YES] H264 // Rocket Lake does not support AVC High 10, how do I distinguish this
[YES] HEVC
[YES] MPEG2
[YES] VC1
[No] VP8
[YES] VP9
[YES] AV1 // but not for 12-bit which is also not something that can be set in Jellyfin 
[YES] HEVC RExt 8/10bit
[YES] HEVC RExt 12bit

[YES] Prefer OS native DXVA or VA-API hardware decoders

[YES] Enable hardware encoding
[No] Enable Intel Low-Power H.264 hardware encoder
[No] Enable Intel Low-Power HEVC hardware encoder

[YES] Allow encoding in HEVC format // limited to 4:2:0 in 12-bit
[No] Allow encoding in AV1 format

[No] Enable VPP Tone mapping

[YES] Enable tone mapping

Answers in red.

[*]Some hardware encoding (H264 and AV1) work but not at certain bit depths, is there a way to distinguish that in Jellyfin? It seems like it is all or none

• I've never had issues transcoding H264 Hi10P content.  There are a lot of checks in the EncodingHelper to narrow down supported codecs based on the boxes checked.  Hi10P is always software decoded on my Arc GPU, which doesn't support Hi10P.  Regarding AV1 12-bit, you will almost certainly never encounter this with "real" movies and shows.  Probably limited to test media and mastering sources.
  

[*]It is unclear what the RExt things are, I just marked them yes

• RExt are advanced HEVC profiles, with higher bit depths and chroma subsampling.  Intel has a github page that is more detailed than the wiki I linked.  Use the "TGLx" column (refers to GPU architecture)
  
• https://github.com/intel/media-driver?ta...g-features
  
• TLDR; you can check all the HEVC RExt boxes
  

[*]I couldn't find a definite answer on the low-power H264 and HEVC encoding options for Rocket Lake.

• These are optional for Rocketlake and require additional setup in the OS that I'm not sure if possible on unRAID.  My unRAID test setup has an AMD GPU so I can't test this and work out the process, if it is even possible to begin with.
  

[*]Also, I read about the VPP tone mapping and some people were saying not to use it over OpenCL but that was three years ago. Has that changed?

• This has not changed.  VPP is an Intel driver level tone mapping capability.  It is faster, only works on certain kinds of HDR10 content, but produces worse results.  OpenCL tone mapping is preferred and can be used on all HDR types.
  

The boxes you've checked are correct.