Access SDI2USB 3.0 SDI Output Programmatically

Is it possible to access the SDI output on the SDI2USB 3.0 programmatically? Looking at the examples and API in the SDK this doesn’t appear to be the case. I’m interested in adding text/graphic overlays to the SDI input video before sending it to the SDI output.

Thanks!

Unfortunately you cannot access the SDI output in any way, this is just a split out from the SDI input.