[noggin]

fetch the remote, checkout fernet's master branch and search :-)

I'm not an expert - just git cloned the fernetmenta xbmc git and did a recursive grep looking for "yadif". Couldn't see any other areas in the xbmc code where YADIF was involved - so think my W3FDIF mods were suitable for deinterlacing both software and VAAPI decoded video?

Think I've done enough to realise there's probably an issue with 4:2:2 - which is such a niche requirement (more so than Hi10p - though at least there is a reason for 4:2:2 !) that I suspect I'll just have to hope someone investigates.