Here is an update from mid 2018.
https://blogs.gnome.org/uraeus/2018/10/30/pipewire-hackfest/
Here are presentation slides from a 2019 talk.
https://fosdem.org/2019/schedule/event/pipewire/attachments/slides/2826/export/events/attachments/pipewire/slides/2826/PipeWire.pdf
Mostly over my head, except I can glean enough to see if
will be some time coming...
--
Joel Roth
"Welcome to the World Heat Bank, where we store your waste
energy and return it with interest."