Very High CPU with playback

[Efficient_Good_5784]

I did wonder if I have setup the preferences for the encoding type:
------------------------------------------------------------------------
Enable hardware decoding for
H264: selected (this was default)
HEVC: selected  (changed this from default as should be supported: https://jellyfin.org/docs/general/admini...ion/intel/)
MPEG2: selected  (changed this from default - this was a guess)
VC1: selected (this was default)
VP8: not selected (didn't change default)
VP9: not selected (didn't change default)
AV1: not selected (I don't think this is supported with the Celeron j4125: https://jellyfin.org/docs/general/admini...ion/intel/)
HEVC 10bit:  selected (this was default)
VP9 10bit:  selected (this was default)

Prefer OS native DXVA or VA-API hardware decoders: selected (this was default)
------------------------------------------------------------------------

Does anybody have the preferred transcoding options for Synology 920+?

The J4125's iGPU can handle all the decode codecs except for AV1.

So just enable all of them minus AV1.

Likewise for the encoding format options, you can enable HEVC, but keep AV1 encoding disabled.