chromecast: unable to cast to more than 1 device per session
The title of this ticket is a little misleading as the http-port and host of the two outgoing streams must also be the same (which they are in the general case as most do not bother changing these settings).
I do not own a chromecast device, so I cannot test it locally, but as
stream_out/chromecast
has hard-coded paths for both the stream
and the art (if any), it means that a second chromecast session cannot
be created (as it would then listen on the same paths through
httpd_host_t
).
It should be easily reproducible through a VLM configuration, which can be provided if needed.