NCast digitalizer are capture cards able to detect input automatically, shifting through numerous resolutions up to 1920x1200. They are also able to capture two video streams simultaneously building a side-by-side stream by hardware.
On Galicaster they use the generic v4l2 plugin with the possibility of being configured manually.
There is a full guide on how to install the driver and configure on the package itself, a file labeled README.
To download and install the driver run: