Enable JACK audio support with selectable client names and autoconnection?

[EternityForest]

GStreamer supports JACK perfectly well, but as is, there is no way to control autoconnection, or client name.

I propose two changes:

A --jack-client-name to be used with the "jackaudiosink" element A --jack-port-pattern, or a reuse of the existing device option, to control the port-pattern of the GStreamer object.

As these are simple changes, I plan to do them myself, but I'd rather start a discussion here in the best way to do this, to see if this is something that could possibly be upstreamed.

My use case is allowing music streamed from a phone to coexist with an existing JACK based framework that handles things like voice announcements, but I think this is simple and useful enough that lots of applications could be found.

[Baffless]

Hi Exactly thats the problem. It autoconnects to jack system1 and 2 ports. I was thinking to edit the code, but i am not SW engineer, so searched the code, but could find anything related to jack port connection part in code. What part of the code does that.Can someone help here? Thanks

[EternityForest]

Not sure what part of the code, look for "gstreamer" and output stuff from there and you can probably find it.

There is a workaround though, with a long ugly command line. Here's the code I use to launch from within Python. Note the random nonsense in port-pattern, if you leave it blank it autoconnects to system.

´´´ x = ['gmediarender', '--gstout-videosink', 'glimagesink', '--gstout-audiopipe', 'jackaudiosink slave-method=0 port-pattern="jkhjkjhkhkhkhkjhk" client-name='+data.get("device.advertiseName", 'DLNA')] ´´´

[Baffless]

I looked in all files for words connect, port, jack, active,gstreamer. Could't find anything that i could think that points to connection part. Maybe i don't understand . Thanks for workaround, but i don't understand how to use it properly. syntax even for running is not very clear if run with provided script and chose alsa i still get it in jack world.But i prefer like this: /usr/local/bin/gmediarender --gstout-audiopipe "something her" --gstout-audiodevice "something her" but cant figure out the syntax , cant find an example.

[Baffless]

Found the solution for autoconnect issue! You just have to add --autoconnect 'a' when running jackd. in example this works for me: /usr/bin/jackd --autoconnect 'a' -t2000 -dalsa -dhw:MKII -r96000 -p2048 -n3 more info related is here https://github.com/jackaudio/jack2/issues/731