[damagedspline]

I dont know enough to do that right now. My understanding is the build process downloads a patched version of FFMpeg for use with the 3D build. Because the base version of FFMPEG has changed in Kodi 19 we would need a new patched version of FFMPEG on top of any changes need to the normal code. @afedchin is the only one who I know who has managed this in the past.

IIRC there where patch files in the ffmpegfolder which got applied while building it. Maybe that still works?

If no one else does I might find time to give it a try on Sunday.

I gave it a quick shot a couple of days ago - DXVA has been completely rewritten. Unlike the the switch from 18.7 to 18.9, this time it will take much more effort.