Is there any way to get around the problem that [pix_mix] doesn't work when there is no video running at the left input?

I find this object very confusing. But I am trying to build some basic VJ software here, and I need to be able to not have the video running all the time at both channels.

Is there maybe a way I can use pix_image in on one of the channels, and have it pretend it is a video?

i think its possible to mix a video with an image ASLONG they are the same size.

If it's possible to know when a video isn't playing you can use [demux] to have the active video channel bypass the [pix_mix] object until there are 2 simultaneous videos again.