Tone Mapping issues

[s0larsoul]

Can you share the media info of the video?  In the Jellyfin UI go to the video and click on the "..." context menu and click "Media Info".  There is a copy button at the top of the window that pops up.

Coming back after fixing metadata and additionally trying the source files. Here is an example of metadata:

Code:

Video
Title: 4K HEVC HDR
Codec: HEVC
AVC: No
Profile: Main 10
Level: 153
Resolution: 3840x2160
Aspect ratio: 16:9
Anamorphic: No
Interlaced: No
Framerate: 23.976025
Bitrate: 29254 kbps
Bit depth: 10 bit
Video range: HDR
Video range type: HDR10
Color space: bt2020nc
Color transfer: smpte2084
Color primaries: bt2020
Pixel format: yuv420p10le
Ref frames: 1

I'm at Win11, Jellyfin Media Player (Desktop). There is still no HDR output, just the tonemapped video, whether HDR is enabled in Windows settings or not. Now I know I can tune tonemapping via mpv.conf locally, but I would like to get HDR metadata sent to display. MPC with MadVR and mpv-shim works correctly. I've tried target-colorspace-hint=yes and vo=gpu-next in the config. With the latter video plays back correctly, but weirdly in a separate window. Am I missing something, or HDR direct playback is currently impossible in Desktop client natively, without mpv-shim or other third-party shenanigans? Is Desktop client in work at all, or should I not expect any updates (half a year already) and move to some other solution?