WalkThrough_User_jack_control - jackaudio/jackaudio.github.com GitHub Wiki
jack_control is a Python based tool that allows to control the JACK server, using the newly defined DBUS service available in JACK2. It can be used when JACK has been compiled and installed with the DBUS layer. You can get and install Jack2 from SVN with :
git clone https://github.com/jackaudio/jack2
On Linux to build JACK with DBUS support, configure, build and install using :
./waf configure --dbus
./waf build
./waf install (in root)
The jack_control tool will be then installed. Look at what commands are available:
Usage: jack_control [command] [command] ...
Commands:
exit - exit jack dbus service (stops jack server if currently running)
status - check whether jack server is started, return value is 0 if runing and 1 otherwise
start - start jack server if not currently started
stop - stop jack server if currenly started
dl - get list of available drivers
dg - get currently selected driver
ds <driver> - select driver
dp - get parameters of currently selected driver
dpd <param> - get long description for driver parameter
dps <param> <value> - set driver parameter
il - get list of available internals
ip <name> - get parameters of given internal
ipd <name> <param> - get long description for internal parameter
ips <name> <param> <value> - set internal parameter
iload <name> - load internal
iunload <name> - unload internal
ep - get engine parameters
epd <param> - get long description for engine parameter
eps <param> <value> - set engine parameter
Commands allow to list the available drivers (backend), list parameters of all drivers, select a given driver, possibly set it's parameters, and start the JACK server with it. All server parameters can also be listed and changed. Internal clients can be listed and their parameters listed and changed.
State of server, drivers and internal clients are automatically saved and restored (using an XML based file).