Sorry if it's an obvious issue already discussed on the list.
Surprisely, I didn't found anything related in the archive:
Is there a way with [jit.window] to get fullscreen and keep the
original image ratio? A bit like seeing a widescreen frame on a square
TV, leaving black stripes on top and bottom of image. I want to keep
the original 1024X685pixel frame ratio of my movies when I need a
I use Jitter 1.2.4
Thanks for any help or hints!