Bliss OS 15.8.5 with FFMPEG 5.1.3 + libdav1d test

Описание: Play a 4K upscaled video of Bad Apple with AV1 decoding using FFMPEG 5.1.3 & libdav1d 1.2.0 on Bliss OS 15.8.5. While I do turn on VAAPI support for AV1, I don't have the hardware to test it right now.

Thanks Micheal Goffioul and KonstaKANG for the patches