JackAudio

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601 discussions

[Jack-Devel] Status of cgroups support/coexistence?

by Mark Haun

On a Linux 4.2 system with realtime scheduling controlled by cgroups, what is the current recommended strategy to get jackd working as a non-root user? There was an old wiki page, https://github.com/jackaudio/jackaudio.github.com/wiki/Cgroups describing some built-in support (e.g. --with-default-cgroup configuration switch). But none of this is in the current git HEAD. (I am using jack2 1.9.11.) And a somewhat related question: Is there currently support for running jack as root and allowing client programs with multiple UIDs to connect? I tried following an old recipe using JACK_PROMISCUOUS_SERVER, but it didn't seem to make any difference; running jackd as root, only root can connect. Regards, Mark

9 years, 7 months

Re: [Jack-Devel] [LAD] updates

by Adrian Knoth

On Sun, Aug 23, 2015 at 03:49:26PM +0000, Fons Adriaensen wrote: > I also completely replaced the code in Jack1 that > calculates the proper running order of clients. > The previous algorithm failed to do this in some > cases. It could not be 'fixed' easily as it was > basically using the wrong algorithm. > > Affected files are > > modified: include/engine.h > modified: include/internal.h > modified: jackd/clientengine.c > modified: jackd/clientengine.h > modified: jackd/engine.c > > There seems to be no interest from the Jack devs, > but if anybody wants to test this I can either > provide the modified files or a patch against > git commit 5af5815c47630b77cc71c91a460f8aa398017cf7 > (current HEAD). Not that I consider myself a jack-dev anymore, but how about you just share out your patch on jack-devel or as a pull-request on github? My impression is that somebody is just going to merge it. ;) Cheers -- mail: adi(a)thur.de http://adi.thur.de PGP/GPG: key via keyserver

9 years, 7 months

[Jack-Devel] Fwd: Bug#786737: jackd1: crashes with -n option specified

by Adrian Knoth

Hi! This just caught my attention. I didn't look into it, yet, but maybe somebody has some cycles to investigate. Cheers -------- Forwarded Message -------- Subject: Bug#786737: jackd1: crashes with -n option specified Resent-Date: Mon, 25 May 2015 02:57:01 +0000 Resent-From: Frank Heckenbach <f.heckenbach(a)fh-soft.de> Resent-To: debian-bugs-dist(a)lists.debian.org Resent-CC: Debian Multimedia Maintainers <pkg-multimedia-maintainers(a)lists.alioth.debian.org> Date: Mon, 25 May 2015 04:53:18 +0200 From: Frank Heckenbach <f.heckenbach(a)fh-soft.de> Reply-To: Frank Heckenbach <f.heckenbach(a)fh-soft.de>, 786737(a)bugs.debian.org To: submit(a)bugs.debian.org Package: jackd1 Version: 1:0.124.1+20140122git5013bed0-3 Severity: normal Tags: upstream patch When the "-n" option is given, jackd crashes when accessing properties (which it seems to do implicitly for any client, e.g. jack_lsp). To reproduce: jackd -nfoo -dalsa or JACK_DEFAULT_SERVER=bar jackd -nfoo -dalsa While jackd is running, repeat this: JACK_DEFAULT_SERVER=foo jack_lsp After a few tries, jackd crashes: /dev/shm/jack-0/default/__db.001: No such file or directory cannot open DB environment: No such file or directory Segmentation fault I found several problems in the code: - jack_property_init(): Returns early if db_env != NULL. However, on failure later returns with db_env != NULL, but db == NULL. Callers assume db != NULL after it returns. Patch below. This fixes at least the segfault, but the error message remains (and whatever consequences it may have, I don't know). - 7 places in metadata.c: if (jack_property_init (NULL)) { If NULL is passed for server_name, of course it won't use the actual server name. How is this supposed to work at all? Was it ever tested? A fix should consist of passing the actual server name from the callers. --- libjack/metadata.c +++ libjack/metadata.c @@ -45,11 +45,11 @@ /* idempotent */ - if (db_env) { + if (db) { return 0; } - if ((ret = db_env_create(&db_env, 0)) != 0) { + if (!db_env && (ret = db_env_create(&db_env, 0)) != 0) { jack_error ("cannot initialize DB environment: %s\n", db_strerror(ret)); return -1; } _______________________________________________ pkg-multimedia-maintainers mailing list pkg-multimedia-maintainers(a)lists.alioth.debian.org http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/pkg-multimedia-main…

9 years, 7 months

Re: [Jack-Devel] jack1 and MIPS architecture

by Jeremy Jongepier

On 08/19/2015 10:15 AM, Matt Flax wrote: > Good news, > > It turns out these problems were because shm was on a very space > restricted device ... I moved shm to the tmp directory and it is now > functioning as it should. > > jack1 on MIPS arch. is tested working. > I ran jackd 1 using 2ms latency, no xruns. That is with a 48kHz sample > rate. > > I played from my desktop using netjack one and I have seen the I2S data > flowing out ... nice first test. When I get an audio codec connected I > will do a listening test. > > Matt Awesome! What kind of board are you using by the way? Jeremy

9 years, 8 months

[Jack-Devel] Want to get involved in testing Windows Jack - Already using Ableton, etc.

by djbarney

Hi Jack people, I am doing a lot of testing of various types of Windows audio software at the moment. ReWire is good but Jack would make a nice alternative. I tested in Windows Vista and got Jack Audio running, but it crashed a few times and I got very crackly audio. After moving to my Windows 7 64bit dual boot installation (I eventually discovered the custom/hacked PAX drivers for my X-Fi card to replace buggy Creative drivers) I found Jack more stable but still get this crackling in the audio - this is not present in any other audio from my system, MME, ASIO, games, ReWire, etc. So how do I get involved with the Windows version ? I can put in bug reports and do testing. I have been known to fire up windows compilers (after eating the right kind of mushrooms, ya know how it is) but I'm not an experienced coder. Frankly I wonder what is causing the crackling because the rest of Jack in Windows seems to be working and stable. DJ Barney -- ~~~ http://djbarney.org

9 years, 8 months

[Jack-Devel] jackd on low memory embedded systems

by Matt Flax

Hi there, I am wanting to run jackd on low resourced/power embedded systems (running Linux). When I run jackd on these systems it tries to lock down way to much memory ... much more then is available. Is the amount of memory locked down by jackd configurable ? Or is it an operating system set thing ? Does anyone have any constructive ideas or suggestions for running jackd on these low resource embedded systems ? thanks Matt

9 years, 9 months

[Jack-Devel] [ANN] QjackCtl 0.4.0 is out!

by Rui Nuno Capela

Hi all, as in through the hottest of summers--as southerners can't even wait--here comes part one: QjackCtl 0.4.0 (summer'15) is out! though aside that everybody knows this already, QjackCtl is a (maybe not so any more but) simple Qt [3] application to control the JACK [2] sound server, for the Linux Audio infrastructure. website: http://qjackctl.sourceforge.net downloads: http://sourceforge.net/projects/qjackctl/files - source tarball: http://download.sourceforge.net/qjackctl/qjackctl-0.4.0.tar.gz - source package: http://download.sourceforge.net/qjackctl/qjackctl-0.4.0-23.rncbc.suse132.sr… - binary packages: http://download.sourceforge.net/qjackctl/qjackctl-0.4.0-23.rncbc.suse132.i5… http://download.sourceforge.net/qjackctl/qjackctl-0.4.0-23.rncbc.suse132.x8… Change-log: - Some windows fixes added (patch by Kjetil Matheussen, thanks). - Most advanced Setup/Settings are moved into new Setup/Advanced settings tab; limit range for the real-time priority setting, now having 6 as absolute minimum valid value (after patches by Robin Gareus, thanks). - A new top-level widget window geometry state save and restore sub-routine is now in effect (EXPERIMENTAL) - Delayed geometry setup for widget windows upon startup has been deprecated and scrapped altogether. - Setup/settings dialog tab is going into some layout changes; also got rid of old patchbay auto-refresh timer cruft, which was previously hidden/disabled. - New socket names are now automatically inferred from selected client names while on the Patchbay widget, Socket dialog. - Fixed for some strict tests for Qt4 vs. Qt5 configure builds. - German (de) translation update (by Guido Scholz, thanks). License: QjackCtl stands free, still open-source software, distributed under the terms of the GNU General Public License (GPL [4]) version 2 or later. Weblog (upstream support): http://www.rncbc.org See also: http://www.rncbc.org/drupal/node/912 References: [1] QjackCtl - A JACK Audio Connection Kit Qt GUI Interface http://qjackctl.sourceforge.net [2] JACK Audio Connection Kit http://jackaudio.org [3] Qt framework, C++ class library and tools for cross-platform application and UI development http://qt.io/ [4] GPL - GNU General Public License http://www.gnu.org/copyleft/gpl.html Enjoy && have a whole hot'ta Summer'15 fun! -- rncbc aka. Rui Nuno Capela -- rncbc aka. Rui Nuno Capela

9 years, 9 months

[Jack-Devel] [jackaudio/jack1] 0abd99: [metadata] fix unfreed DBT key/data tuples causing...

by Paul Davis

Branch: refs/heads/master Home: https://github.com/jackaudio/jack1 Commit: 0abd99b2d1278373d958300d2575f5964e161acb https://github.com/jackaudio/jack1/commit/0abd99b2d1278373d958300d2575f5964… Author: rncbc <rncbc(a)gamma.rncbc.lan> Date: 2015-04-19 (Sun, 19 Apr 2015) Changed paths: M libjack/metadata.c Log Message: ----------- [metadata] fix unfreed DBT key/data tuples causing several mem-leaks. Commit: 57c2bc1d4a2559e2d462e394ba06dd827740f874 https://github.com/jackaudio/jack1/commit/57c2bc1d4a2559e2d462e394ba06dd827… Author: rncbc <rncbc(a)gamma.rncbc.lan> Date: 2015-04-19 (Sun, 19 Apr 2015) Changed paths: M libjack/metadata.c Log Message: ----------- [metadata] fix unfreed DBT key/data tuples causing several mem-leaks. (2) Commit: 4f4523bb00a3f12169e205d18bab3aceab50bce0 https://github.com/jackaudio/jack1/commit/4f4523bb00a3f12169e205d18bab3acea… Author: rncbc <rncbc(a)gamma.rncbc.lan> Date: 2015-04-19 (Sun, 19 Apr 2015) Changed paths: M libjack/metadata.c Log Message: ----------- [metadata] fix unfreed DBT key/data tuples causing several mem-leaks. (3) Commit: 71ad620daab1e9a844edfed6a10d07c4a89506f1 https://github.com/jackaudio/jack1/commit/71ad620daab1e9a844edfed6a10d07c4a… Author: rncbc <rncbc(a)gamma.rncbc.lan> Date: 2015-04-19 (Sun, 19 Apr 2015) Changed paths: M libjack/metadata.c Log Message: ----------- [metadata] fix unfreed DBT key/data tuples causing several mem-leaks. (4) Commit: 3e8e8ee917545750d7a8408940348c45c2df1b01 https://github.com/jackaudio/jack1/commit/3e8e8ee917545750d7a8408940348c45c… Author: rncbc <rncbc(a)gamma.rncbc.lan> Date: 2015-04-19 (Sun, 19 Apr 2015) Changed paths: M libjack/metadata.c Log Message: ----------- [metadata] fix unfreed DBT key/data tuples causing several mem-leaks. (5) Commit: 3b9c817a9488d00d5c0d37c48af092e698d1f616 https://github.com/jackaudio/jack1/commit/3b9c817a9488d00d5c0d37c48af092e69… Author: rncbc <rncbc(a)gamma.rncbc.lan> Date: 2015-04-19 (Sun, 19 Apr 2015) Changed paths: M libjack/metadata.c Log Message: ----------- [metadata] fix unfreed DBT key/data tuples causing several mem-leaks. (6) Commit: 940c811392eae31ac778b424bc38b0b517a2a8d5 https://github.com/jackaudio/jack1/commit/940c811392eae31ac778b424bc38b0b51… Author: rncbc <rncbc(a)gamma.rncbc.lan> Date: 2015-04-20 (Mon, 20 Apr 2015) Changed paths: M libjack/metadata.c Log Message: ----------- [metadata] fix unfreed DBT key/data tuples causing several mem-leaks. (7) Commit: 60d74536e66510baca02a0718fffc256b107d2fc https://github.com/jackaudio/jack1/commit/60d74536e66510baca02a0718fffc256b… Author: Robin Gareus <robin(a)gareus.org> Date: 2015-05-01 (Fri, 01 May 2015) Changed paths: M libjack/client.c Log Message: ----------- support [unescaped] double-quotes in jackdrc allow autostart of jackd on OSX where device-names can contain spaces. Commit: 4f0fe014fb05a322f5cd56e718f2929df365b642 https://github.com/jackaudio/jack1/commit/4f0fe014fb05a322f5cd56e718f2929df… Author: Dominic Sacré <dominic.sacre(a)gmx.de> Date: 2015-05-01 (Fri, 01 May 2015) Changed paths: M jackd/engine.c Log Message: ----------- fix segfault caused by incorrect jack_error() format string Commit: 6816710adc72bd22f8968e2627459d142f72ce66 https://github.com/jackaudio/jack1/commit/6816710adc72bd22f8968e2627459d142… Author: rncbc <rncbc(a)gamma.rncbc.lan> Date: 2015-05-01 (Fri, 01 May 2015) Changed paths: M libjack/metadata.c Log Message: ----------- [metadata] fix unfreed DBT key/data tuples causing several mem-leaks. Commit: a1bf5da92ef3e71cd1405c8a2472234249c87dd2 https://github.com/jackaudio/jack1/commit/a1bf5da92ef3e71cd1405c8a247223424… Author: rncbc <rncbc(a)gamma.rncbc.lan> Date: 2015-05-01 (Fri, 01 May 2015) Log Message: ----------- Merge branch 'master' of https://github.com/rncbc/jack1 Commit: 2a2047cd2ea8ac3ee4638db7a625123552573871 https://github.com/jackaudio/jack1/commit/2a2047cd2ea8ac3ee4638db7a62512355… Author: rncbc <rncbc(a)gamma.rncbc.lan> Date: 2015-05-02 (Sat, 02 May 2015) Changed paths: M drivers/alsa_midi/alsa_midi.c Log Message: ----------- Merge branch 'fix_alsa_midi_freewheeling' Commit: 5af5815c47630b77cc71c91a460f8aa398017cf7 https://github.com/jackaudio/jack1/commit/5af5815c47630b77cc71c91a460f8aa39… Author: Paul Davis <paul(a)linuxaudiosystems.com> Date: 2015-07-02 (Thu, 02 Jul 2015) Changed paths: M libjack/metadata.c Log Message: ----------- Merge pull request #20 from rncbc/master [metadata] fix unfreed DBT key/data tuples causing several mem-leaks. Compare: https://github.com/jackaudio/jack1/compare/b7099ac25d1b...5af5815c4763

9 years, 9 months

[Jack-Devel] [jackaudio/jack1] bdb6e8: including S24_LE/BE formats to linux alsa driver

by Paul Davis

Branch: refs/heads/master Home: https://github.com/jackaudio/jack1 Commit: bdb6e8ec52f2cdf899a925292fda5a5de982b5dd https://github.com/jackaudio/jack1/commit/bdb6e8ec52f2cdf899a925292fda5a5de… Author: falkTX <falktx(a)gmail.com> Date: 2015-06-26 (Fri, 26 Jun 2015) Changed paths: M drivers/alsa/alsa_driver.c Log Message: ----------- including S24_LE/BE formats to linux alsa driver Commit: b7099ac25d1b8de34994c69365d2cda032cf5d96 https://github.com/jackaudio/jack1/commit/b7099ac25d1b8de34994c69365d2cda03… Author: Paul Davis <paul(a)linuxaudiosystems.com> Date: 2015-07-02 (Thu, 02 Jul 2015) Changed paths: M drivers/alsa/alsa_driver.c Log Message: ----------- Merge pull request #23 from falkTX/master including S24_LE/BE formats to linux alsa driver Compare: https://github.com/jackaudio/jack1/compare/3340034dfbf2...b7099ac25d1b

9 years, 9 months

[Jack-Devel] Odp: Re: Odp: Re: jack1: jack_transport does not work as master

by Pawel

I send a patch once on this list and this is a "patched" version. I keep this, because it was very helpfull while testing and improve other apps ( like hydrogen , fsthost ), especially tempo change issues. Not perfect but better than "official", especially in low tempos ( like 30 BPM ). .. so yes you are inconvincible ;-) P. Dnia Czwartek, 2 Lipca 2015 20:17 Paul Davis <paul(a)linuxaudiosystems.com> napisał(a) > Was this the stuff you tried (unsuccessfully) to convince me need to > go into the tools repo? > > On Thu, Jul 2, 2015 at 1:12 PM, Pawel <xj(a)wp.pl> wrote: > > Hi, > > > > Tobias, you can check my slightly improved version of jack_transport: > > https://sourceforge.net/p/nxjsm/code/HEAD/tree/trunk/tools/transport.c > > > > I'm also the author of new Hydrogen jack-master code. It's works much better , but probably not perfect ;-) > > > > P. > > > > Dnia Czwartek, 2 Lipca 2015 18:57 Paul Davis <paul(a)linuxaudiosystems.com> napisał(a) > >> Frankly, computing BBT time has never been part of "how to use the > >> JACK API". It should probably never have been included in the source > >> code in the first place. > >> > >> Managing BBT time is *extremely* complex - we have worked on it for > >> years in Ardour and it still has issues. I'd prefer to just rip it > >> out. > >> > >> On Thu, Jul 2, 2015 at 12:47 PM, Tobias Hoffmann > >> <lfile-list(a)thax.hardliners.org> wrote: > >> > On 02/07/15 17:30, Tobias Hoffmann wrote: > >> >> > >> >> On 02/07/15 15:38, Paul Davis wrote: > >> >>> > >> >>> jack_transport is not intended to act as a the time master. > >> >> > >> >> Well, comparing example-clients/transport_client.c and tools/transport.c, > >> >> I'd say the one big difference between the two is that tools/transport.c > >> >> (aka jack_transport) can act as a *simple* timebase master... > >> > > >> > > >> > Ok, I see now that the BBT update algorithm (in the "else" branch in > >> > timebase()) in transport.c is quite broken, because it accumulates rounding > >> > errors. However always using the first, recalculating branch (basically: if > >> > (true)) seems to be stable -- or at least: better than Hydrogen's timebase > >> > master, which updates the BBT only every few cycles... (I've read that > >> > somewhere a completely rewritten Jack Master implementation for Hydrogen is > >> > available, which I have not tested yet). > >> > > >> > I find it quite sad that even some code distributed in the jack tarball is > >> > an example of how NOT to use the Jack API ... > >> > > >> > Tobias > >> > > >> > > >> > > >> > > >> > > >> _______________________________________________ > >> Jack-Devel mailing list > >> Jack-Devel(a)lists.jackaudio.org > >> http://lists.jackaudio.org/listinfo.cgi/jack-devel-jackaudio.org > > > > > > > > _______________________________________________ > > Jack-Devel mailing list > > Jack-Devel(a)lists.jackaudio.org > > http://lists.jackaudio.org/listinfo.cgi/jack-devel-jackaudio.org

9 years, 9 months

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