cant get transcoding to work

[caleb87]

Some movies won't play on my Chromecast Ultra 4k. Pretty sure it's because they are 10 bit. I'm trying to get transcoding to work, but have had no success.

I have tried on several different servers. Ubuntu w/ AMD 6900 XT with 7950x CPU. Tried AMD AMF, VAAPI, and V4L2. Also tried a Windows 11 machine with 7950x and 4090. The windows server didn't provide the same logs. 

I included ffmpeg logs for both servers, but not all settings attempted. I also included the end of jellyfin server log.

Any ideas on what I'm doing wrong?

MOVIE INFO:
Video
Title: 4K HEVC HDR
Codec: HEVC
Profile: Main 10
Level: 153
Resolution: 3840x2160
Aspect ratio: 16:9
Interlaced: No
Framerate: 23.976025
Bitrate: 61054 kbps
Bit depth: 10 bit
Video range: HDR
Video range type: HDR10
DV title: DV Profile 7.6
DV version major: 1
DV version minor: 0
DV profile: 7
DV level: 6
DV rpu preset flag: 1
DV el preset flag: 1
DV bl preset flag: 1
DV bl signal compatibility id: 6
Color space: bt2020nc
Color transfer: smpte2084
Color primaries: bt2020
Pixel format: yuv420p10le
Ref frames: 1