Is there a Multiplex with X inputs to control X outputs?
Terminology
You did not describe a &quot;multiplexor&quot; in your comments. If you want the &quot;straight-across&quot; configuration you described, you are looking for a &quot;Video Switch&quot; with one of the following architectures:

4x1
4x1:1
4SPST (4x single-pole, single-throw)
4 Channel

If you want an any-to-any configuration, you are looking for a &quot;cross-bar&quot; switch.
If you want a one-to-many configuration you are looking for a &quot;multiplexor&quot;.
Examples
The exact switches you need depend entirely on the type of &quot;video&quot; signal you are switching, but for cell-phone type camera modules (LVDS) here are some IC's to look at.