Libraries for Video Capture Device

I thought I had found a really good guide at https://www.nvidia.com/content/dam/en-zz/Solutions/design-visualization/quadro-product-literature/PG-03776-001_v05.pdf

But it’s 11 years old and it seems all of the VideoCaptureDevice stuff was renamed or moved. I cannot find the functionality in current libraries.

// Enumerate available video capture devices
VideoInDevices = glXEnumerateVideoCaptureDevicesNV(dpy, screen, &numDevices);

Could somebody point me towards current functionality like this? Code examples?

I guess you don’t own one of those:
https://www.pny.eu/de/professional/explore-all-products/legacy-products/431-nvidia-quadro-k6000-sdi-io
they have long been discontinued, only supported by older drivers.

Something like this: https://www.abaco.com/products/nvp2102a

Those are really custom design with their own fpga, needing custom drivers and libs/api from abaco, I guess.