/srv/irclogs.ubuntu.com/2022/06/17/#ubuntustudio-devel.txt

arraybolt3[m]So, I now know how to turn PipeWire on and off, and how to turn PipeWire pulseaudio on and off. I don't think it's possible to turn of PipeWire's JACK support, but I don't think we need to since JACK and PipeWire JACK can be running at the same time. So that leaves only the last item.00:07
arraybolt3[m]To start PipeWire: systemctl --user start pipewire00:10
arraybolt3[m]To stop PipeWire: systemctl --user stop pipewire.socket00:11
arraybolt3[m]To start PipeWire PulseAudio: systemctl --user start pipewire-pulse00:11
arraybolt3[m]To stop PipeWire PulseAudio: systemctl --user stop pipewire-pulse.socket (note that this leaves PipeWire itself running)00:12
arraybolt3[m]Starting and stopping PipeWire also start and stop the JACK part of PipeWire.00:12
arraybolt3[m]To start PulseAudio (not PipeWire): systemctl --user start pulseaudio00:12
arraybolt3[m]To stop PulseAudio (not PipeWire): systemctl --user stop pulseaudio.socket00:13
arraybolt3[m]So that's the progress I've made, I'll report back the procedure for the JACK bridge once I've got that part done.00:13
arraybolt3[m]OvenWerks: Pinging.00:13
arraybolt3[m]Just realized that you probably mean "turn on" PipeWire JACK as in, make programs use it by default. That's what you meant by "two libs to switch out". The "pw-jack" command appears to do that automatically, but we probably don't want users having to manually run pw-jack to make their programs JACK'd into PipeWire.00:17
arraybolt3[m]To enable PipeWire JACK, add these lines to the end of ~/.profile: https://termbin.com/319m00:38
arraybolt3[m]To disable PipeWire JACK, clear the LD_LIBRARY_PATH variable in ~/.profile.00:39
arraybolt3[m](I stole the LD_LIBRARY_PATH trick from the pw-jack script, it also looks like it has further info in it that can be reverse-engineered and put into Studio Controls most likely. Stuff like setting the buffer size.)00:52
arraybolt3[m]Bah, I'm hung up on the last step. With WirePlumber, you're supposed to be able to edit /usr/share/wireplumber/main.lua.d/50-alsa-config.lua to create a PipeWire-to-JACK bridge, but it keeps making a "PipeWire proxy destroyed" error and idk why (bug?). Supposedly the functionality we're looking for existed when using pipewire-media-session, but when I use that, I can't get PipeWire PulseAudio or PipeWire JACK working at all01:39
arraybolt3[m]and I'm not getting any errors that appear suspicious.01:39

Generated by irclog2html.py 2.7 by Marius Gedminas - find it at mg.pov.lt!