Ok, it is some bad magic for me. For testing are good these free samples: Sample Content
Taked photos with playing on last nightly build of CE22NO. (…on older kernel .119 on oldest build of CE22NO is good HW playing all these videos on my device. Only newer kernel have bug on my device. Exception are videos in mjpeg, but is other “story”. MJPEG are problematic also in android on this device: Missing support for Motion jpeg (as mjpeg or .avi) in case of s922x and maybe others amlogic processors).
I have last idea, that create directory for loading of video_ucode.bin, in that is maybe trouble with not mounted vendor filesystem on my device on CE22NO.It would be help to changing maybe incompatible Android ucode firmwares (with xj?) to CE22NO. You have identical ucode on am6plus as i have? Ugoos AM6+, hardware decoder not working - #14 by atirage21