DLNA
https://www.dlna.org/
To aid in DLNA Certification, DLNA Test Tools were developed to streamline the process. The tools lower the cost to develop new products and free up engineers' precious time.
Digital Living Network Alliance - Wikipedia
https://en.wikipedia.org/wiki/Digital_Living_Network_Alliance
Digital Living Network Alliance (DLNA) (originally named Digital Home Working Group, DHWG) was founded by a group of PC and consumer electronics companies in June 2003...
DLNA: what it is and what you need to know | TechRadar
https://www.techradar.com/news/digital-home/home-networking/dlna-what-it-is-and-what-you-need-to-know-1079015
The Digital Living Network Alliance is a non-profit trade organisation, and it was DLNA-compatible devices use UPnP to communicate, and there are three classes of DLNA devices: Home Network...