This confused me as well.
There are two "versions" (for lack of a better term) of Co-Star: A software solution, and a software/hardware solution.
The software solution: The Kaleidescape provides a unified interface. (At least on Crestron: The Kaleidescape-provided module provides hooks so you can tell which player is playing the movie. Using this hook, you can tell the Crestron to decide what input to switch to in order to see the movie for NVX or DM switching hardware.)
The software/hardware solution: The Kaleidescape provides the same unified interface. But there's a small hardware box where you plug both players into the Co-Star hardware, and then the output has the proper output. This is controlled, I believe, because the Kaleidescape system turns off the HDMI output on the player that isn't active, and the Co-Star switch just picks the "active" connection.
It turns out that this switch isn't compatible with the newer NVX switcher, but it does work with the older DM switcher.
If your Kaleidescape interface on Control4 can tell you which player is active, you should be able to do switching yourself, just like @Bauer89 is doing with his receiver (in Crestron land).
There are two "versions" (for lack of a better term) of Co-Star: A software solution, and a software/hardware solution.
The software solution: The Kaleidescape provides a unified interface. (At least on Crestron: The Kaleidescape-provided module provides hooks so you can tell which player is playing the movie. Using this hook, you can tell the Crestron to decide what input to switch to in order to see the movie for NVX or DM switching hardware.)
The software/hardware solution: The Kaleidescape provides the same unified interface. But there's a small hardware box where you plug both players into the Co-Star hardware, and then the output has the proper output. This is controlled, I believe, because the Kaleidescape system turns off the HDMI output on the player that isn't active, and the Co-Star switch just picks the "active" connection.
It turns out that this switch isn't compatible with the newer NVX switcher, but it does work with the older DM switcher.
If your Kaleidescape interface on Control4 can tell you which player is active, you should be able to do switching yourself, just like @Bauer89 is doing with his receiver (in Crestron land).