something like 

git reset --hard 2037bf63cdf25462ca606f4a28636e12df77c2a0

before applying this patch

then run cin like

CIN_10BIT_ENC=p010le bin/cin

or replace p010le with whatever equivalents y210le (?)

sorry, I just hanged my X session so can't copy/paste exact output, but if you launch cingg with

error=debug in bin/ffmpeg/encode.opts it will print list of accepted by vaapi library formats at encoding attempt.

I think this is still more like prototype to see if we can get it working, I hope to wire it to existing profile reading mechanism.