If I self host some kind of private video chat service, is the video data transferred direct from connected peer to peer? Does it go through the self hosted service instance? Or does that depend on which video server is used?
Of course it depends on what software you are using.
Though as a rule of thumb, peers try to connect directly. That’s not always possible due to firewalls/NATs, so often TURN servers are used as intermediary.
Jitsi Meet can be self-hosted. The data will go through your server, but end-to-end encryption can be used.
Another option is Wirow. Again, data goes through the servers.
I do not think if there are any peer-to-peer video chat applications. If there were, why would there be a need for self-hosting a server?
I do not think if there are any peer-to-peer video chat applications.
https://en.wikipedia.org/wiki/Tox_(protocol)
Also when you use Jingles on XMPP, usually the voice and video part is P2P. Negociation goes through the federated xmpp servers of the respective users.
That depends entirely on the protocol you’re using… That’s like asking if HTTP works the same way as vittorrent because they both are used to transfer files.