A new USB-firmware-based open hardware product is being funded on CrowdSupply: Numato Lab’s Opsis, an FPGA-based HDMI2USB video capture device:
The Opsis was designed to run the HDMI2USB firmware developed by the TimVideos.us project. This firmware makes it easy to build automated conference/event recording systems. The HDMI2USB.tv firmware emulates a standard UVC webcam, allowing any video software, such as Skype, Google Hangouts, or WebRTC, to then send it to an online audience.
https://www.crowdsupply.com/numato-lab/opsis
http://hdmi2usb.tv/home/
Firmware Security 