Possible to create a non-rectangular, uneven image?

[Hudson555x]

Natively Shotcut can’t perform this action.

Screen-in-Screen, need help to skew to trapezium

I try to make something like this: [msnbc4] I find it easy to use Chroma key to transparent my own “TV Frame” But I can’t find a way to “Scale” the video I want to display into the trapezium shape. Greatly appreciate if anyone who knows how to do this can give me a brief.