JackAudio

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[Jack-Devel] [jackaudio/jack1] 96c3ac: Check for clock_nanosleep before use

by Paul Davis

Branch: refs/heads/master Home: https://github.com/jackaudio/jack1 Commit: 96c3ac0ae69f2a3dea6fea6fdc3a217853108cdb https://github.com/jackaudio/jack1/commit/96c3ac0ae69f2a3dea6fea6fdc3a21785… Author: Jeremy Huddleston Sequoia <jeremyhu(a)macports.org> Date: 2016-07-03 (Sun, 03 Jul 2016) Changed paths: M configure.ac M drivers/dummy/dummy_driver.c M drivers/dummy/dummy_driver.h Log Message: ----------- Check for clock_nanosleep before use Fixes a build failure on macOS 10.12 Sierra Commit: 67f05c995e777c007427f7071e4ae7246390e821 https://github.com/jackaudio/jack1/commit/67f05c995e777c007427f7071e4ae7246… Author: Paul Davis <paul(a)linuxaudiosystems.com> Date: 2016-09-14 (Wed, 14 Sep 2016) Changed paths: M configure.ac M drivers/dummy/dummy_driver.c M drivers/dummy/dummy_driver.h Log Message: ----------- Merge pull request #45 from jeremyhu/master Check for clock_nanosleep before use Compare: https://github.com/jackaudio/jack1/compare/0b0953db926f...67f05c995e77

9 years, 1 month

[Jack-Devel] [ANN] The QStuff* End of Summer'16 Release

by Rui Nuno Capela

Howdy! Modesty on the side, this is the ultimate Qstuff* End of Summer'16 release frenzy. Nothing less than the following gems: * QjackCtl 0.4.3 * Qsynth 0.4.2 * Qsampler 0.4.1 * QXGEdit 0.4.1 * QmidiCtl 0.4.1 * QmidiNet 0.4.1 are now released to the masses. Enjoy and have (lots of) fun! **QjackCtl - JACK Audio Connection Kit Qt GUI Interface [1]** QjackCtl 0.4.3 (end of summer'16) released! QjackCtl [1] is a(n ageing but still) simple Qt [7] application to control the JACK [8] sound server, for the Linux Audio [12] infrastructure. Website: http://qjackctl.sourceforge.net Project page: http://sourceforge.net/projects/qjackctl Downloads: http://sourceforge.net/projects/qjackctl/files - source tarball: http://download.sf.net/qjackctl/qjackctl-0.4.3.tar.gz - source package: http://download.sf.net/qjackctl/qjackctl-0.4.3-26.rncbc.suse.src.rpm - binary packages: http://download.sf.net/qjackctl/qjackctl-0.4.3-26.rncbc.suse.i586.rpm http://download.sf.net/qjackctl/qjackctl-0.4.3-26.rncbc.suse.x86_64.rpm Git repos: http://git.code.sf.net/p/qjackctl/code https://github.com/rncbc/qjackctl.git https://gitlab.com/rncbc/qjackctl.git https://bitbucket.com/rncbc/qjackctl.git Change-log: - Fix build error caused by variable length array. - Fix some tooltip spelling (patch by Jaromír Mikeš, thanks). - Translation (not) fix for the default server name "(default)". - Old "Start minimized to system tray" option returns to setup. - Dropped the --enable-qt5 from configure as found redundant given that's the build default anyway (suggestion by Guido Scholz, while for Qtractor [15], thanks). - Late again French (fr) translation update (by Olivier Humbert aka. trebmuh, thanks). **Qsynth - A fluidsynth Qt GUI Interface [2]** Qsynth 0.4.2 (end of summer'16) released! Qsynth [2] is a FluidSynth [10] GUI front-end application written in C++ around the Qt [7] framework using Qt Designer. Website: http://qsynth.sourceforge.net Project page: http://sourceforge.net/projects/qsynth Downloads: http://sourceforge.net/projects/qsynth/files - source tarball: http://download.sf.net/qsynth/qsynth-0.4.2.tar.gz - source package: http://download.sf.net/qsynth/qsynth-0.4.2-8.rncbc.suse.src.rpm - binary packages: http://download.sf.net/qsynth/qsynth-0.4.2-8.rncbc.suse.i586.rpm http://download.sf.net/qsynth/qsynth-0.4.2-8.rncbc.suse.x86_64.rpm Git repos: http://git.code.sf.net/p/qsynth/code https://github.com/rncbc/qsynth.git https://gitlab.com/rncbc/qsynth.git https://bitbucket.com/rncbc/qsynth.git Change-log: - Old "Start minimized to system tray" option returns to setup. - Dropped the --enable-qt5 from configure as found redundant given that's the build default anyway (suggestion by Guido Scholz, while for Qtractor [15], thanks). **Qsampler - A LinuxSampler Qt GUI Interface [3]** Qsampler 0.4.1 (end of summer'16) released! Qsampler [3] is a LinuxSampler [11] GUI front-end application written in C++ around the Qt [7] framework using Qt Designer. Website: http://qsampler.sourceforge.net Project page: http://sourceforge.net/projects/qsampler Downloads: http://sourceforge.net/projects/qsampler/files - source tarball: http://download.sf.net/qsampler/qsampler-0.4.1.tar.gz - source package: http://download.sf.net/qsampler/qsampler-0.4.1-18.rncbc.suse.src.rpm - binary packages: http://download.sf.net/qsampler/qsampler-0.4.1-18.rncbc.suse.i586.rpm http://download.sf.net/qsampler/qsampler-0.4.1-18.rncbc.suse.x86_64.rpm Git repos: http://git.code.sf.net/p/qsampler/code https://github.com/rncbc/qsampler.git https://gitlab.com/rncbc/qsampler.git https://bitbucket.com/rncbc/qsampler.git Change-log: - Fixed a race condition on creating sampler channels that ended in duplicate channel strips; also fixed channel auto-arrange. - Dropped the --enable-qt5 from configure as found redundant given that's the build default anyway (suggestion by Guido Scholz, while for Qtractor [15], thanks). - Automake: set environment variable GCC_COLORS=auto to allow GCC to auto detect whether it (sh/c)ould output its messages in color. **QXGEdit - A Qt XG Editor [4]** QXGEdit 0.4.1 (end of summer'16) released! QXGEdit [4] is a live XG instrument editor, specialized on editing MIDI System Exclusive files (.syx) for the Yamaha DB50XG [14] and thus probably a baseline for many other XG devices. Website: http://qxgedit.sourceforge.net Project page: http://sourceforge.net/projects/qxgedit Downloads: http://sourceforge.net/projects/qxgedit/files - source tarball: http://download.sf.net/qxgedit/qxgedit-0.4.1.tar.gz - source package: http://download.sf.net/qxgedit/qxgedit-0.4.1-8.rncbc.suse.src.rpm - binary packages: http://download.sf.net/qxgedit/qxgedit-0.4.1-8.rncbc.suse.i586.rpm http://download.sf.net/qxgedit/qxgedit-0.4.1-8.rncbc.suse.x86_64.rpm Git repos: http://git.code.sf.net/p/qxgedit/code https://github.com/rncbc/qxgedit.git https://gitlab.com/rncbc/qxgedit.git https://bitbucket.com/rncbc/qxgedit.git Change-log: - Dropped the --enable-qt5 from configure as found redundant given that's the build default anyway (suggestion by Guido Scholz, while for Qtractor [15], thanks). **QmidiCtl - A MIDI Remote Controller via UDP/IP Multicast [5]** QmidiCtl 0.4.1 (end of summer'16) released! QmidiCtl [5] is a MIDI remote controller application that sends MIDI data over the network, using UDP/IP multicast. Inspired by multimidicast [16] and designed to be compatible with ipMIDI [17] for Windows. QmidiCtl [5] has been primarily designed for the Maemo [18] enabled handheld devices, namely the Nokia N900 [19] and also being promoted to the Maemo Package repositories [20]. Nevertheless, QmidiCtl may still be found effective as a regular desktop application as well. Website: http://qmidictl.sourceforge.net Project page: http://sourceforge.net/projects/qmidictl Downloads: http://sourceforge.net/projects/qmidictl/files - source tarball: http://download.sf.net/qmidictl/qmidictl-0.4.1.tar.gz - source package: http://download.sf.net/qmidictl/qmidictl-0.4.1-9.rncbc.suse.src.rpm - binary packages: http://download.sf.net/qmidictl/qmidictl-0.4.1-9.rncbc.suse.i586.rpm http://download.sf.net/qmidictl/qmidictl-0.4.1-9.rncbc.suse.x86_64.rpm Git repos: http://git.code.sf.net/p/qmidictl/code https://github.com/rncbc/qmidictl.git https://gitlab.com/rncbc/qmidictl.git https://bitbucket.com/rncbc/qmidictl.git Change-log: - Dropped the --enable-qt5 from configure as found redundant given that's the build default anyway (suggestion by Guido Scholz, while for Qtractor [15], thanks). **QmidiNet - A MIDI Network Gateway via UDP/IP Multicast [6]** QmidiNet 0.4.1 (end of summer'16) released! QmidiNet [6] is a MIDI network gateway application that sends and receives MIDI data (ALSA-MIDI and JACK-MIDI) over the network, using UDP/IP multicast. Inspired by multimidicast [16] and designed to be compatible with ipMIDI [17] for Windows. Website: http://qmidinet.sourceforge.net Project page: http://sourceforge.net/projects/qmidinet Downloads: http://sourceforge.net/projects/qmidinet/files - source tarball: http://download.sf.net/qmidinet/qmidinet-0.4.1.tar.gz - source package: http://download.sf.net/qmidinet/qmidinet-0.4.1-10.rncbc.suse.src.rpm - binary packages: http://download.sf.net/qmidinet/qmidinet-0.4.1-10.rncbc.suse.i586.rpm http://download.sf.net/qmidinet/qmidinet-0.4.1-10.rncbc.suse.x86_64.rpm Git repos: http://git.code.sf.net/p/qmidinet/code https://github.com/rncbc/qmidinet.git https://gitlab.com/rncbc/qmidinet.git https://bitbucket.com/rncbc/qmidinet.git Change-log: - Dropped the --enable-qt5 from configure as found redundant given that's the build default anyway (suggestion by Guido Scholz, while for Qtractor [15], thanks). License: All of the Qstuff* are free, free, open-source Linux Audio [12] software, distributed under the terms of the GNU General Public License (GPL [13]) version 2 or later. References: [1] QjackCtl - A JACK Audio Connection Kit Qt GUI Interface http://qjackctl.sourceforge.net [2] Qsynth - A fluidsynth Qt GUI Interface http://qsynth.sourceforge.net [3] Qsampler - A LinuxSampler Qt GUI Interface http://qsampler.sourceforge.net [4] QXGEdit - A Qt XG Editor http://qxgedit.sourceforge.net [5] QmidiCtl - A MIDI Remote Controller via UDP/IP Multicast http://qmidictl.sourceforge.net [6] QmidiNet - A MIDI Network Gateway via UDP/IP Multicast http://qmidinet.sourceforge.net [7] Qt framework, C++ class library and tools for cross-platform application and UI development http://qt.io/ [8] JACK Audio Connection Kit http://jackaudio.org [9] ALSA, Advanced Linux Sound Architecture http://www.alsa-project.org/ [10] FluidSynth - A SoundFont Synthesizer A real-time software synthesizer based on SoundFont 2 specifications http://www.fluidsynth.org [11] LinuxSampler - The Linux Sampler Project A modular, streaming capable, realtime audio sampler http://www.linuxsampler.org [12] Linux Audio consortium of libre software for audio-related work http://linuxaudio.org [13] GPL - GNU General Public License http://www.gnu.org/copyleft/gpl.html [14] Yamaha DB50XG http://www.soundonsound.com/sos/1996_articles/may96/yamahadb50xg.html [15] Qtractor, an audio/MIDI multi-track sequencer http://qtractor.sourceforge.net [16] multimidicast - sends and receives MIDI from ALSA sequencers over network http://llg.cubic.org/tools/multimidicast [17] ipMIDI - MIDI over Ethernet ports - send MIDI over your LAN http://nerds.de [18] Maemo.org - Home of the Maemo community http://www.maemo.org [19] Maemo.org Wiki - Nokia N900 http://wiki.maemo.org/Nokia_N900 [20] Maemo.org - Downloads: QmidiCtl http://maemo.org/downloads/product/Maemo5/qmidictl See also: http://www.rncbc.org/drupal/node/1696 Enjoy && keep the fun, always! -- rncbc aka. Rui Nuno Capela

9 years, 1 month

[Jack-Devel] JACK1's Future?

by Josh de Kock

Hi, Back in January/February at the start of this year, Paul announced that he would be stepping down, and he requested that someone would stand for being the new maintainer. As far as I know, this didn't happen, up until Filipe Coelho(?) offered to maintain JACK1. After speaking with Paul around March, he said that once Ardour 5.0 was released he would do the final release of JACK1 and then hand over maintainership. There are a few pull requests on the GitHub, some of which are critical to the core functionality of JACK1, like the patch for OSX which begins to modernise JACK1's usages of the CoreAudio APIs (while still maintaining backward compatibility). I'd like to help the JACK community in getting OSX support up-to-scratch. There is a promising project called CaptainJack (https://github.com/Qix-/CaptainJack) which aims to be a modern replacement for JackOSX, which is a vital part of the JACK ecosystem within OSX. While it is just a start, it shows there is at least some interest. My question to the community is: Should an effort be put in to revive JACK1? And to Paul; I know it's only been a little over a month since 5.0 was released, but is it possible you could do this 'final release' of JACK1 soon so we can get the ball rolling again, or at least give some sort of time-frame on when this can be achieved. I personally think there should be an effort, the main issue at this time is how the clients are sorted, and there is a patch for this. I would be willing to step forward to fix all the issues related to OSX, and reattempt integration of Fons' topological sort patch. In addition to this, JACK1 is a good code-base, albeit slightly outdated, which makes a great reference implementation for JACK3. -- Josh

9 years, 1 month

[Jack-Devel] extremely useful stuff

by me

Hi, I found some extremely useful stuff and it was a real discovery for me, just give it a try! You may find more information here <http://spoquizugu.comicbooktheatre.com/e4eor> me

9 years, 1 month

[Jack-Devel] nice

by me

Hi, There is something nice I wanted to show you, just take a look <http://querymagu.edschneider.com/e4ihg> me

9 years, 1 month

[Jack-Devel] Negative xruns

by Miroslav Urbanek

Hi, JACK1 prints negative values in xrun errors. The problem started with Linux kernel 4.0, and I believe it is caused by the following commit: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=… A patch is attached. MU

9 years, 1 month

[Jack-Devel] Fwd: [PATCH] Explicitly enable timestamps in the ALSA backend

by Josh de Kock

Forwarding to Jack-devel (it was a direct reply to me, but I can't do anything with it at this stage). -------- Forwarded Message -------- Subject: Re: [Jack-Devel] Negative xruns Date: Fri, 9 Sep 2016 12:11:01 +0200 From: Miroslav Urbanek <mu(a)miroslavurbanek.com> To: Josh de Kock <josh(a)itanimul.li> Here you go. MU

9 years, 1 month

[Jack-Devel] How to handle freewheeling failure

by Kjetil Matheussen

Hi, I wonder how you normally handle the situation when the program exits abnormally (for instance if the user kills a client) while freewheeling. I'm not so interested in detecting this when it happens, but I want to handle it somewhat gracefully when my program is started again. I.e. I don't want the program not producing any sound and not informing that something is wrong. As far as I can see, there is no function to check whether jack is currently freewheeling (or is there?). So are there any potential problems just calling "jack_set_freewheel(g_jack_client, 1)" during program startup? (i.e. whether we are freewheeling or not)

9 years, 1 month

[Jack-Devel] jack_transport_query(client, NULL) always returns JackTransportStopped

by Kjetil Matheussen

Maybe I have misunderstood how things work, or I'm using too old version of jack, but here's what happens: 1. Start jack 2 (jack-audio-connection-kit-devel-1.9.9.5-1.fc17.x86_64) 2. Press the "Start transport rolling" button in qjackctl. 3. Qjackctl reports "Rolling" in the display. 4. Create jack client 5. Call jack_transport_query(client, NULL). 6. jack_transport_query(client, NULL) always returns JackTransportStopped Shouldn't jack_transport_query(client, NULL) return JackTransportRolling? (It doesn't matter whether I activate the client or not before calling jack_transport_query(client, NULL)).

9 years, 1 month

[Jack-Devel] Suggestion for an example program

by Peter Hoppe

Hi! In reference to https://github.com/jackaudio/example-clients: I saw the code as part of a question on Stackoverflow (http://stackoverflow.com/q/29748082/6544953). Would it be possible to include the source code below as an example? * There's already a midi controlled synth application in that repo (midisine.c). But I feel the example demonstrates in a clearer way how to send audio to the sound card's stereo output, because it just uses audio data, not audio data plus midi handling. * There's also the simple client example (simple_client.c), but that one (effectively) handles bi-directional audio data streaming. This client just sends audio data which makes it clearer how to use data output (and, by implication, data input). Long story in short - this example is clearer to n00bs (like me). Thank you for your consideration! > |/** @file simple_client.c * * @brief This simple client demonstrates > the basic features of JACK * as they would be used by many > applications. > */#include<stdio.h>#include<errno.h>#include<stdlib.h>#include<string.h>#include<math.h>#include<signal.h>#ifndefWIN32 > #include<unistd.h>#endif#include<jack/jack.h>jack_port_t*output_port1,*output_port2;jack_client_t*client;#ifndefM_PI > #defineM_PI (3.14159265)#endif#defineTABLE_SIZE > (200)typedefstruct{floatsine[TABLE_SIZE];intleft_phase;intright_phase;}paTestData;staticvoidsignal_handler(intsig){jack_client_close(client);fprintf(stderr,"signal > received, exiting ...\n");exit(0);}/** * The process callback for this > JACK application is called in a * special realtime thread once for > each audio cycle. * * This client follows a simple rule: when the JACK > transport is * running, copy the input port to the output. When it > stops, exit. > */intprocess(jack_nframes_tnframes,void*arg){jack_default_audio_sample_t*out1,*out2;paTestData > *data =(paTestData*)arg;inti;out1 > =(jack_default_audio_sample_t*)jack_port_get_buffer(output_port1,nframes);out2 > =(jack_default_audio_sample_t*)jack_port_get_buffer(output_port2,nframes);for(i > =0;i<nframes;i++){out1[i]=data->sine[data->left_phase];// left > out2[i]=data->sine[data->right_phase];// right data->left_phase > +=1;if(data->left_phase >=TABLE_SIZE)data->left_phase > -=TABLE_SIZE;data->right_phase +=10;// higher pitch so we can > distinguish left and right. if(data->right_phase > >=TABLE_SIZE)data->right_phase -=TABLE_SIZE;}return0;}/** * JACK calls > this shutdown_callback if the server ever shuts down or * decides to > disconnect the client. > */voidjack_shutdown(void*arg){exit(1);}intmain(intargc,char*argv[]){constchar**ports;constchar*client_name;constchar*server_name > =NULL;jack_options_toptions > =JackNullOption;jack_status_tstatus;paTestData data;inti;/*if (argc >= > 2) { // client name specified? client_name = argv[1]; if (argc >= 3) { > // server name specified? server_name = argv[2]; int my_option = > JackNullOption | JackServerName; options = (jack_options_t)my_option; > } } else { // use basename of argv[0] client_name = strrchr(argv[0], > '/'); if (client_name == 0) { client_name = argv[0]; } else { > client_name++; } }*/client_name ="mytest";for(i > =0;i<TABLE_SIZE;i++){data.sine[i]=0.2*(float)sin(((double)i > /(double)TABLE_SIZE)*M_PI *2.);}data.left_phase =data.right_phase > =0;// open a client connection to the JACK server client > =jack_client_open(client_name,options,&status,server_name);if(client > ==NULL){fprintf(stderr,"jack_client_open() failed, ""status = > 0x%2.0x\n",status);if(status &JackServerFailed){fprintf(stderr,"Unable > to connect to JACK server\n");}exit(1);}if(status > &JackServerStarted){fprintf(stderr,"JACK server started\n");}if(status > &JackNameNotUnique){client_name > =jack_get_client_name(client);fprintf(stderr,"unique name `%s' > assigned\n",client_name);}// tell the JACK server to call `process()' > whenever//there is work to be > done.jack_set_process_callback(client,process,&data);// tell the JACK > server to call `jack_shutdown()' if//it ever shuts down, either > entirely, or if it//just decides to stop calling > us.jack_on_shutdown(client,jack_shutdown,0);// create two ports > output_port1 > =jack_port_register(client,"output1",JACK_DEFAULT_AUDIO_TYPE,JackPortIsOutput,0);output_port2 > =jack_port_register(client,"output2",JACK_DEFAULT_AUDIO_TYPE,JackPortIsOutput,0);if((output_port1 > ==NULL)||(output_port2 ==NULL)){fprintf(stderr,"no more JACK ports > available\n");exit(1);}//Tell the JACK server that we are ready to > roll. Our// process() callback will start running now. > if(jack_activate(client)){fprintf(stderr,"cannot activate > client");exit(1);}// Connect the ports. You can't do this before the > client is// activated, because we can't make connections to clients// > that aren't running. Note the confusing (but necessary)// orientation > of the driver backend ports: playback ports are// "input" to the > backend, and capture ports are "output" from// it.ports > =jack_get_ports(client,NULL,NULL,JackPortIsPhysical|JackPortIsInput);if(ports > ==NULL){fprintf(stderr,"no physical playback > ports\n");exit(1);}if(jack_connect(client,jack_port_name(output_port1),ports[0])){fprintf(stderr,"cannot > connect output > ports\n");}if(jack_connect(client,jack_port_name(output_port2),ports[1])){fprintf(stderr,"cannot > connect output ports\n");}jack_free(ports);// install a signal handler > to properly quits jack client #ifdefWIN32 > signal(SIGINT,signal_handler);signal(SIGABRT,signal_handler);signal(SIGTERM,signal_handler);#elsesignal(SIGQUIT,signal_handler);signal(SIGTERM,signal_handler);signal(SIGHUP,signal_handler);signal(SIGINT,signal_handler);#endif// > keep running until the Ctrl+C while(1){#ifdefWIN32 > Sleep(1000);#elsesleep(1);#endif}jack_client_close(client);exit(0);}|

9 years, 1 month

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