I notice that Jellyfin can transcode via bitrate but there is nothing for container dimensions, all of my material is Blu ray quality CRF23 H265 encoded or UHD CRF23 H265 the problem is while 2/3rds of the devices used to watch the streams are perfectly fine a TV albeit a 4K one seems unable to decode the stream as if it's just to much for its CPU, I tried reducing the bit rate to CRF 28 and using VBR but it didn't really help the problem. We know it's not a network issue as there is zero packet loss it's simply the hardware is unable to decode the 1920x1080 CRF 23 Stream. Re-scaling the image to 720x576 and then letting the 4K set up scale from that to 4K looks fantastic but we can't trans code in that way.

Is there any possibility that some cleaver clogs could come up with a plugin that would allow this, preferably in the same way that bit rate does now - literally lets you click and say Scale to Blu Ray/Scale to DVD. I believe that transcoding uses ffmpeg under the hood and I know that ffmpeg can do this as I occasionally scale my UHD's down to Full HD and let my TV at home ( again which does a good job ) upscale the image.

OR ... Maybe someone has done this already and I just have not heard of it.

Oh while I don't know the model of the TV ( but I will find out ) my server should be able to cope with it.

AMD Epyc 7773x + 512GB Ram 14 x 22TiB Seagate Exos 512MB Cache drives in Raid Z2 with PM9A3 Slog and ARC, Dual 10Gbe Lan nVidia 4060Ti 8Gb for transcode.