On 2022-01-25 16:02:29 (-0700), Paul Davis wrote: > Again, PipeWire *is* JACK and it is also PulseAudio. It it not a > replacement for PulseAudio, it is a replacement for both of them. Once > you are using PipeWire, everything you've read about JACK bridging > etc. becomes incorrect and irrelevant. That is technically not necessarily true, as it depends on how the build of pipewire is configured (e.g. by default its JACK libraries are configured to be installed to a pipewire internal location and it does not install the header files) and how packages for a given distribution are created from it. On Arch Linux we have switched to a scenario where pipewire-jack (the JACK implementation of pipewire, which depends on pipewire) is a virtual provider of "jack". On Arch that also includes the headers, as we do not really split for -dev packages. The jack2 package also provides "jack" and therefore the two implementations conflict with one another and can not be installed side by side anymore. Switching between the implementations has become a bit easier now that we have jack-example-tools [1]. Pipewire can be installed without also having to install pipewire-jack or pipewire-pulse (the pulseaudio implementation of pipewire). This means that pipewire may be used on top of a different JACK implementation (e.g. jack2), which apparently is possible [2]. From a user's perspective I believe this gives the highest amount of flexibility to choose what they like. It is true though, that some statements in regards to workflows with JACK tooling might not hold when using pipewire-jack (e.g. pipewire-jack does not currently implement internal clients or dbus support). This is why I started a comparison table [3] for users to give a rough overview at least. Best, David [1] https://github.com/jackaudio/jack-example-tools [2] https://gitlab.freedesktop.org/pipewire/pipewire/-/wikis/JACK [3] https://wiki.archlinux.org/title/JACK_Audio_Connection_Kit#Comparison_of_JACK_implementations -- https://sleepmap.de
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