HDMI 1.4 transmitter IP core is ideal for DVD, Blu-Ray Disc players, set-top boxes, A/V receivers. The IP core provides full support for HDCP 1.3 encryption. It also contains the Built-In Self Test ...

These cables are much cheaper than HDMI ... so he decided to reverse engineer an IP HDMI extender. After connecting a DVD player and TV, he fired up Wireshark and started sniffing the packets.