The portable Universal Plug and Play (UPnP) SDK provides support for building UPnP-compliant control points, devices, and bridges on several operating systems.
The main repository is at GitHub in https://github.com/pupnp/pupnp. This is just a clone repository for legacy reasons.
Old SourceForge repo: git://pupnp.git.sourceforge.net/gitroot/pupnp/pupnp
The Physical Security Interoperability Alliance (PSIA) was founded to promote the interoperability of IP enabled security devices and systems using freely available protocols and standards such as HTTP, HTTPS, XML, RTP, RTSP, zeroconf, etc.