[noggin]

I’ve got a resolution down switching patch that I have been testing so 720 content will be output at a 720p resolution.

It also includes a Kodi settings adjustable switch. Will be in the next release real soon.

You cannot use Bicubic or lanczos3, not enough CPU ponies on AMLogic devices.

So in this case 720p stuff will trigger a format switch to 720p, output in native mode, and then allow the TV to upscale?

Do you do this based on both horizontal AND vertical resolution (horizontal res >720 but 1280 or fewer horizontal samples), AND vertical (720 or fewer vertical lines) - to cope with letterbox and non-square 1280x1080 stuff? (If you just look at horizontal res the 1280 x 1080 could be confusing).

Or do you do a test after PAR has been taken into account (so 1280x1080 and 1440x1080 16:9 non-square stuff is seen as 1920x1080)

Hilariously you can end up with 1280x720 non-square pixel content that should be output as letterboxed 1920x720 in a 1920x1080 raster NOT 1280x720...