I would like to watermark a video that is taken from for instance a webcam.
in the normal setup you would see this flow webcam -> capture software
what i would like to do programmatically is to webcam -> watermark -> capture software
how does one do this ? is there any frameworks for this? a requirement is not to capture and then store to disk since this is for a live stream.
also, would there need to another fake camera device to able to pull the signal from the processed watermark output signal?