If some people want to crop video to fit different screen aspect ratios, it would be nice for the frame to advertise its "center" so the playback device can app

If some people want to crop video to fit different screen aspect ratios, it would be nice for the frame to advertise its "center" so the playback device can apply the appropriate cropping and matting. Maybe I have my player set to "3:2 full screen, up to 30% crop.". It's not something I would do personally, but it would be better than pan and scan being something implemented in the encode itself.