Starting with normal 1920/1080 video, I want to convert it to the vertical aspect ratio seen in cellphones.
A vertical "pillar" black matte is not sufficient. I need the reframed video to play full screen in a vertical cellphone screen.
I need a way to convert a widescreen original to play full screen vertically on a cellphone
I understand this would only use approx a third of the original video.
Is this doable ?