videos can't cast to (chrome cast as example)

Use either DIAL protocol (old) preferably mDNS.
Libavahi has mDNS resolve in it. to be able to cast to a chrome cast.

[https://en.wikipedia.org/wiki/Multicast_DNS](url)
[https://en.wikipedia.org/wiki/Avahi_(software)](url)
[https://valadoc.org/avahi-gobject/index.htm](url)

Start with the proposed DIAL and mDNS approaches, then read the linked Multicast DNS, Avahi, and avahi-gobject references. Done means the video player can cast videos to a Chromecast. The issue names no files or tests, so the implementation scope and verification steps require project investigation.

Written by the indexing model from the issue text.