The instructions here enabled hardware decoding on my j5005 board (UHD Graphics 605/Gemini Lake) but encoding produced garbled output.   I assumed it had something to do with Unraid or the 4.19 kernel but apparently not - it's solved by forcing Emby to use the container's i965_drv_video.so instead of iHD_drv_video.so.   NOTE 1: As of Emby 4.6.* which includes an iHD driver with fixes for Gemini Lake it's no longer necessary to disable iHD, so I've struck through the instruct