diff options
Diffstat (limited to 'audio/jack-audio-connection-kit/README')
| -rw-r--r-- | audio/jack-audio-connection-kit/README | 36 |
1 files changed, 15 insertions, 21 deletions
diff --git a/audio/jack-audio-connection-kit/README b/audio/jack-audio-connection-kit/README index cfe51aab6259f..d8f932733e7d7 100644 --- a/audio/jack-audio-connection-kit/README +++ b/audio/jack-audio-connection-kit/README @@ -1,26 +1,20 @@ JACK is a low-latency audio server, written primarily for Linux. It can -connect a number of different applications to an audio device, as well -as allow them to share audio among themselves. Its clients can run in -their own processes (ie. as a normal application) or they can run within -a JACK server instance (i.e. as a "plugin"). +connect a number of different applications to an audio device, as well as +allow them to share audio among themselves. Its clients can run in their +own processes (ie. as a normal application) or they can run within a JACK +server instance (i.e. as a "plugin"). -Jack uses /dev/shm as a temporary directory for its processes; this is a -relatively new change, as it used to use /mnt/ramfs. You may pass an -alternate location as JACKTMP when executing the script. For example: - JACKTMP=/mnt/tmp jack-audio-connection-kit.SlackBuild -Assuming you use the default /dev/shm as temporary directory, be sure you -have an appropriate line in /etc/fstab to mount it: - tmpfs /dev/shm tmpfs defaults 0 0 -If you don't accept the script's default, you'll need to have the appropriate -mountpoint set up in fstab and mounted, but a discussion of how to do that -is outside the scope of this document. - -jackd has to run with realtime priviledges. One way to do this on Slackware would -be to use set_rlimits. Since 12.2 there's another way, though experimental. If -you have a filesystem that supports posix capabilities (reiserfs does not), you -can grant jackd the rights to run in realtime mode, even when started as normal user -with the following command: +jackd has to run with realtime priviledges. One way to do this on Slackware +would be to use set_rlimits. Since 12.2 there's another way. If you have +a filesystem that supports posix capabilities (reiserfs does not), you +can grant jackd the rights to run in realtime mode, even when started as +normal user with the following command: setcap cap_ipc_lock,cap_sys_nice=ep /usr/bin/jackd -jack optionally uses libsndfile which is also available at SlackBuilds.org. +If you use qjackctl to start jack, it will need the same capabilities set +to be able to start jack as non-root user. You can use the same command +just with 'qjackctl' instead of 'jackd' + +jack optionally uses libsndfile, libffado and celt, which are all available +at SlackBuilds.org. |