If the hostname of a proxy server resolves to multiple IP addresses,
a connection is established to each of them.
Changes to the DNS are monitored regularly and proxy connections are
created or deleted as necessary.
When a publisher has a connection the publisher can update the
connection (for example, to add a video track to an audio only
connection) by sending an updated offer to Janus. Janus detects that,
adjusts the connection and then sends back an answer. Once the publisher
connection is updated Janus starts a renegotiation for the subscribers
and generates the offers to be sent to them.
The signaling server did not handle the event, so the offers were not
sent and the subscriber connections were not updated. Now the offers are
sent as needed, which makes possible for the renegotiation to be
completed by the clients.
In this case the "offer" message will also include an "update" parameter
so clients can differentiate between offers to create new connections or
update the existing one.
Signed-off-by: Daniel Calviño Sánchez <danxuliu@gmail.com>
If a client publishes audio/video and no longer has the video permission,
the whole publisher will be closed. Previously this was only checking
the generic "media" permission.
This can be used for example to route all users on continent A to proxies
on continent B. Useful if no proxy exists on continent A and the global
selection chooses a non-ideal proxy.
- Individually for each backend.
- For the proxy client (i.e. signaling server using cluster of proxies).
- For the proxy server / MCU.
The smallest bandwidth configured will be used, e.g. if a backend has a
larger limit than the MCU assigned for the stream, the limit of the MCU
server will be used.
