[SailfishDevel] Route media sound stream to FIFO

[Michael Fuchs]

Hi,

I built snapcast for SailfishOS [2]. Snapcast is a "Synchronous multi-room 
audio player". [1]

Everything works as expected now. Next step is the integration into Sailfish 
user experience. It should be simple to create a GUI, which starts/stops the 
snapclient.

But I don't know how to solve the server part of snapcast. Snapserver reads 
audio data from a FIFO buffer and broadcasts it to the network.
Creating a pulseaudio FIFO sink is clear to me. Either you write it into the 
config file pulse audio config file or load it via pacmd:

	$ pacmd load-module module-pipe-sink file=/tmp/snapfifo sink_name=Snapcast
	$ pacmd update-sink-proplist Snapcast device.description=Snapcast

But how do I route the media streams from the default sink to the FIFO-sink as 
soon as snapserver is running? (Like when you plug in a headphone or connect 
to a bluetooth device.)

Thanks for any advice.

cheers, Michael.



[1] https://github.com/badaix/snapcast
[2] https://build.merproject.org/package/show/home:fooxl:sailfish/snapcast