nedko
commented
1 year ago List of control API header improvements over the basic design that suited the initial jackdbus:
- Internal clients, GRAME
- Portability to non-UNIX, Microsoft Windows in particular, sigset_t is replaced with jackctl_sigmask_t (GRAME)
- parameter constraints in control API (nedko)
- Master/Slave driver concept and SwitchMaster, @surfacepatterns (Devin Anderson, no copyright line) and GRAME
- jackctl_server_create() gets two parameters, on_device_acquire and on_device_release, as dbus device reservation was moved to jackdbus on request to keep jackd clean of dbus (nedko)
- jackd "session file" support (Timo Wischer, falktx, no copyright line)
- jackctl_server_create2() with additional on_device_reservation_loop parameter, so that jackd can have device reservation too. ("Fix blocking DBus device reservation, so it plays nice with others"), by falktx, no copyright line
Future non-stub implementation of a libjackserver in PipeWire that is suitable (works without significant regressions against the jack2 version) for LADI/jackdbus will:
- use SPA plugins instead of internal clients (internal client concept is probably mostly reusable)
- Rework clocked driver switching mechanism to one suitable for more than one active master-clocking drivers in the graph (complete rework of the interface Master/Slave/SwitchMaster interface)
Currently, the functions are stubs:
timur@pop-os:~/jack2$ /usr/bin/jackd -d alsa jackdmp 1.9.22 Copyright 2001-2005 Paul Davis and others. Copyright 2004-2016 Grame. Copyright 2016-2023 Filipe Coelho. jackdmp comes with ABSOLUTELY NO WARRANTY This is free software, and you are welcome to redistribute it under certain conditions; see the file COPYING for details [W][01086.573069] default | [ control.c: 67 jackctl_server_create2()] not implemented (nil) (nil) (nil) [W][01086.573216] default | [ control.c: 154 jackctl_server_get_parameters()] 0x5648831c2910: not implemented [W][01086.573260] default | [ control.c: 142 jackctl_server_get_drivers_list()] 0x5648831c2910: not implemented [W][01086.573297] default | [ control.c: 225 jackctl_driver_get_name()] 0x5648831c28f0: not implemented Unknown driver "alsa" [W][01086.573352] default | [ control.c: 94 jackctl_server_destroy()] 0x5648831c2910: not implemented