3D stereoscopic video, line-by-line (interlaced) in QML.

[pauldotknopf]

I'd like to implement a QML component that accepts two video inputs (using the MediaPlayer component) to combine them into a single line-interlaced image for 3D monitors. Each horizontal line alternates between left and right image.

Here is a demo: https://www.youtube.com/watch?v=KS2g8k1tkmg

I found an example of someone using QPainter and masking to paint two images, but I don't think it is very performant.

With that said, what is my best approach here?

I don't have a problem with getting the QVideoFrame from the MediaPlayer components.

Should I try to use the QSGVideoNode? Will the QSGNode types allow me to achieve combine/render two QSGVideoNode instances in line-interlaced mode?

Should I just use the QQuickFramebufferObject class and do things myself with traditional OpenGL commands?