Linux-audio-dev

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3 participants
7448 discussions

Re: [LAD] [FFADO-devel] can't build libffado 2.2.1 under gentoo

by Jonathan Woithe

On Thu, Apr 14, 2016 at 10:24:05AM +0200, Stefan Richter wrote: > On Apr 14 Stefan Richter wrote: > > gcc (Gentoo 4.9.3 p1.2, pie-0.6.3) 4.9.3" > > [...] > > Build log: http://pastebin.com/fRHScVVH > > > > Not sure what changed since the last successful build. gcc was possibly > > the same. > > Build fails in the same way with gcc (Gentoo 4.8.5 p1.3, pie-0.6.2) 4.8.5. Current svn builds fine for me in Slackware 14.1: gcc 4.8.2, libxml++ 2.37.2, dbus-c++ git from Nov 2014, glibmm 2.36.2. My compilation lines do *not* include "-std=c++11", so I wonder whether the presence of that is the root cause for the trouble. My typical g++ call is g++ -o src/dice/dice_avdevice.os -c -m64 -Wall -g -Werror -fPIC -fPIC ... This is in a multilib x86_64 environment, so "-m64" is expected. I don't think the "-std=c++11" should be specified; it would be interesting to query the ebuild commit log to see what reason was given when it was added (assuming that this is where it's coming from). Is there a way for you to hack the build script to get rid of it so this theory can be tested? Also, following up on my earlier comment about libxml++, I checked my logs and the problem I was thinking about wasn't a compilation error, but was related to the chasing the cause of warnings in a couple of libraries. It's therefore not relevant here. Regards jonathan

8 years, 5 months

Re: [LAD] [FFADO-devel] can't build libffado 2.2.1 under gentoo

by Jonathan Woithe

On Thu, Apr 14, 2016 at 09:30:21AM +0200, Stefan Richter wrote: > > On 04/13/16 20:27, Nikita Zlobin wrote: > > > Hello, i'm trying to build libffado from proaudio overlay. > [...] > > > Somewhat long time ago (about year) i could install it, but now i have > > > following problems on compilation: > > > - First, it seems, that it now uses more modern language features: the > > > specified option --std=c99, added by one of ebuild's patch, as well > > > as without any options (tried to build tarball with) gives long error > > > list. > > > - With compiler flag --std=c++11 compilation continued for relatively > > > long time, but then failed with following > > > errors: http://pastebin.com/hkttBN9X > > Building from a recent ffado.org SVN checkout worked for me on Gentoo > sometime earlier this year. > > But right now it fails to build for me too. > $ gcc --version > gcc (Gentoo 4.9.3 p1.2, pie-0.6.3) 4.9.3" > [...] > Build log: http://pastebin.com/fRHScVVH > > Not sure what changed since the last successful build. gcc was possibly > the same. In Nikita's report the errors are reported in src/libutil/cmd_serialize.h. This file hasn't been changed for ages and certainly not any time this year. There may be something rather obscure going on, but it's hard to see that any changes have been made to FFADO to cause Nikita's errors. I wonder there is something strange going on with the compiler or the compilation environment. In Stefan's report the error is different: /usr/include/glibmm-2.4/glibmm/ustring.h:267:12: error: expected â;â at end of member declaration ~ustring() noexcept; ^ This file is included via libxml++'s exception.h header file. I know there have been some issues with libxml++ and newer gcc versions so I wonder whether any of those are behind this. I remember that libxml++ did throw me some curveballs when I moved my development system from gcc 4.5.x to 4.8.x but I can't remember the details - I'll look them up tonight. It wasn't anything that affected FFADO though. Regards jonathan

8 years, 5 months

can't build libffado 2.2.1 under gentoo

by Nikita Zlobin

Hello, i'm trying to build libffado from proaudio overlay. The problem seems to be in ffado itself. Somewhat long time ago (about year) i could install it, but now i have following problems on compilation: - First, it seems, that it now uses more modern language features: the specified option --std=c99, added by one of ebuild's patch, as well as without any options (tried to build tarball with) gives long error list. - With compiler flag --std=c++11 compilation continued for relatively long time, but then failed with following errors: http://pastebin.com/hkttBN9X there seems to be one common feature: definition with "quadlet_t" argument fails to overload same def with "byte_t" arg. I looked to src/libutil/cmd_serialize.h, and there are four (with original) variants for each functions... i don't understand, why only quadlet_t - typed variant fails, while others proceed. What i found yet is that this type is defined in raw1394 headers: $ grep -r 'quadlet_t;' /usr/include /usr/include/libraw1394/raw1394.h:typedef u_int32_t quadlet_t; And what is interesting, when i tried to build from tarball manually: $ scons -DCOMPILE_FLAGS='--std=c++11' ... that flag was not even passed to g++, so thanks for gentoo S). ------------- $ gcc --version gcc (Gentoo 4.9.3 p1.5, pie-0.6.4) 4.9.3

8 years, 5 months

[ANN] The Qstuff* Spring'16 Release Frenzy

by Rui Nuno Capela

Hi, On the wake of the miniLAC2016(a)c-base.org Berlin [14], and keeping up with tradition, the most venerable of the Qstuff* are under the so called Spring'16 release frenzy... Enjoy the party! - QjackCtl 0.4.2 - Qsynth 0.4.1 - Qsampler 0.4.0 - QXGEdit 0.4.0 - QmidiCtl 0.4.0 - QmidiNet 0.4.0 Details are as follows... **QjackCtl - JACK Audio Connection Kit Qt GUI Interface [1]** QjackCtl 0.4.2 (spring'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 Downloads: http://sourceforge.net/projects/qjackctl/files - source tarball: http://download.sf.net/qjackctl/qjackctl-0.4.2.tar.gz - source package: http://download.sf.net/qjackctl/qjackctl-0.4.2-25.rncbc.suse.src.rpm - binary packages: http://download.sf.net/qjackctl/qjackctl-0.4.2-25.rncbc.suse.i586.rpm http://download.sf.net/qjackctl/qjackctl-0.4.2-25.rncbc.suse.x86_84.rpm Git repos: http://git.code.sf.net/p/qjackctl/code https://github.com/rncbc/qjackctl Change-log: - Added a brand new "Enable JACK D-BUS interface" option, split from the old common "Enable D-BUS interface" setup option which now refers to its own self D-BUS interface exclusively. - Dropped old "Start minimized to system tray" option from setup. - Add double-click action (toggle start/stop) to systray (a pull request by Joel Moberg, thanks). - Added application keywords to freedesktop.org's AppData. - System-tray icon context menu has been fixed/hacked to show up again on Plasma 5 (aka. KDE5) notification status area. - Switched column entries in the unified interface device combo-box to make it work for macosx/coreaudio again. - Blind fix to a FTBFS on macosx/coreaudio platforms, a leftover from the unified interface device selection combo-box inception, almost two years ago. - Prevent x11extras module from use on non-X11/Unix plaforms. - Late French (fr) translation update (by Olivier Humbert, thanks). License: QjackCtl [1] is free, open-source Linux Audio [12] software, distributed under the terms of the GNU General Public License (GPL [13]) version 2 or later. **Qsynth - A fluidsynth Qt GUI Interface [2]** Qsynth 0.4.1 (spring'16) released! Qsynth [2] is a FluidSynth GUI front-end application written in C++ around the Qt framework [7] using Qt Designer. Website: http://qsynth.sourceforge.net Downloads: http://sourceforge.net/projects/qsynth/files - source tarball: http://download.sf.net/qsynth/qsynth-0.4.1.tar.gz - source package: http://download.sf.net/qsynth/qsynth-0.4.1-7.rncbc.suse.src.rpm - binary packages: http://download.sf.net/qsynth/qsynth-0.4.1-7.rncbc.suse.i586.rpm http://download.sf.net/qsynth/qsynth-0.4.1-7.rncbc.suse.x86_84.rpm Git repos: http://git.code.sf.net/p/qsynth/code https://github.com/rncbc/qsynth Change-log: - Dropped old "Start minimized to system tray" option from setup. - CMake script lists update (patch by Orcan Ogetbil, thanks). - Added application keywords to freedesktop.org's AppData. - System-tray icon context menu has been fixed/hacked to show up again on Plasma 5 (aka. KDE5) notifications status area. - Prevent x11extras module from use on non-X11/Unix plaforms. - Messages standard output capture has been improved in both ways a non-blocking pipe may get. - Regression fix for invalid system-tray icon dimensions reported by some desktop environment frameworks. License: Qsynth [2] is free, open-source Linux Audio [12] software, distributed under the terms of the GNU General Public License (GPL [13]) version 2 or later. **Qsampler - A LinuxSampler Qt GUI Interface [3]** Qsampler 0.4.0 (spring'16) released! Qsampler [3] is a LinuxSampler [11] GUI front-end application written in C++ around the Qt framework [7] using Qt Designer. Website: http://qsampler.sourceforge.net Downloads: http://sourceforge.net/projects/qsampler/files - source tarball: http://download.sf.net/qsampler/qsampler-0.4.0.tar.gz - source package: http://download.sf.net/qsampler/qsampler-0.4.0-17.rncbc.suse.src.rpm - binary packages: http://download.sf.net/qsampler/qsampler-0.4.0-17.rncbc.suse.i586.rpm http://download.sf.net/qsampler/qsampler-0.4.0-17.rncbc.suse.x86_84.rpm Git repos: http://git.code.sf.net/p/qsampler/code https://github.com/rncbc/qsampler Change-log: - Added application keywords to freedesktop.org's AppData. - Prevent x11extras module from use on non-X11/Unix plaforms. - Messages standard output capture has been improved again, now in both ways a non-blocking pipe may get. - Single/unique application instance control adapted to Qt5/X11. License: Qsampler is free, open-source Linux Audio [12] software, distributed under the terms of the GNU General Public License (GPL [13]) version 2 or later. **QXGEdit - A Qt XG Editor [4]** QXGEdit 0.4.0 (spring'16) released! QXGEdit [4] is a live XG instrument editor, specialized on editing MIDI System Exclusive files (.syx) for the Yamaha DB50XG and thus probably a baseline for many other XG devices. Website: http://qxgedit.sourceforge.net Downloads: http://sourceforge.net/projects/qxgedit/files - source tarball: http://download.sf.net/qxgedit/qxgedit-0.4.0.tar.gz - source package: http://download.sf.net/qxgedit/qxgedit-0.4.0-7.rncbc.suse.src.rpm - binary packages: http://download.sf.net/qxgedit/qxgedit-0.4.0-7.rncbc.suse.i586.rpm http://download.sf.net/qxgedit/qxgedit-0.4.0-7.rncbc.suse.x86_84.rpm Git repos: http://git.code.sf.net/p/qxgedit/code https://github.com/rncbc/qxgedit Change-log: - Prevent x11extras module from use on non-X11/Unix plaforms. - French (fr) translations update (by Olivier Humbert, thanks). - Fixed port on MIDI 14-bit controllers input caching. License: QXGEdit [4] is free, open-source Linux Audio [12] software, distributed under the terms of the GNU General Public License (GPL [13]) version 2 or later. **QmidiCtl - A MIDI Remote Controller via UDP/IP Multicast [5]** QmidiCtl 0.4.0 (spring'16) released! QmidiCtl [5] is a MIDI remote controller application that sends MIDI data over the network, using UDP/IP multicast. Inspired by multimidicast (http://llg.cubic.org/tools) and designed to be compatible with ipMIDI for Windows (http://nerds.de). QmidiCtl has been primarily designed for the Maemo enabled handheld devices, namely the Nokia N900 and also being promoted to the Maemo Package repositories. Nevertheless, QmidiCtl may still be found effective as a regular desktop application as well. Website: http://qmidictl.sourceforge.net Downloads: http://sourceforge.net/projects/qmidictl/files - source tarball: http://download.sf.net/qmidictl/qmidictl-0.4.0.tar.gz - source package: http://download.sf.net/qmidictl/qmidictl-0.4.0-8.rncbc.suse.src.rpm - binary packages: http://download.sf.net/qmidictl/qmidictl-0.4.0-8.rncbc.suse.i586.rpm http://download.sf.net/qmidictl/qmidictl-0.4.0-8.rncbc.suse.x86_84.rpm Git repos: http://git.code.sf.net/p/qmidictl/code https://github.com/rncbc/qmidictl Change-log: - Added application keywords to freedesktop.org's AppData. License: QmidiCtl [5] is free, open-source Linux Audio [12] software, distributed under the terms of the GNU General Public License (GPL [13]) version 2 or later. **QmidiNet - A MIDI Network Gateway via UDP/IP Multicast [6]** QmidiNet 0.4.0 (spring'16) released! QmidiNet [6] is a MIDI network gateway application that sends and receives MIDI data (ALSA-MIDI [9] and JACK-MIDI [8]) over the network, using UDP/IP multicast. Inspired by multimidicast and designed to be compatible with ipMIDI for Windows. Website: http://qmidinet.sourceforge.net Downloads: http://sourceforge.net/projects/qmidinet/files - source tarball: http://download.sf.net/qmidinet/qmidinet-0.4.0.tar.gz - source package: http://download.sf.net/qmidinet/qmidinet-0.4.0-9.rncbc.suse.src.rpm - binary packages: http://download.sf.net/qmidinet/qmidinet-0.4.0-9.rncbc.suse.i586.rpm http://download.sf.net/qmidinet/qmidinet-0.4.0-9.rncbc.suse.x86_84.rpm Git repos: http://git.code.sf.net/p/qmidinet/code https://github.com/rncbc/qmidinet Change-log: - Allegedly fixed for the socketopt(IP_MULTICAST_LOOP) reverse semantics on Windows platforms (as suggested by Paul Davis, from Ardour ipMIDI implementation, thanks). - Added application keywords to freedesktop.org's AppData. License: QmidiNet [6] is 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] miniLAC2016(a)c-base.org Berlin miniLAC is a compact, community-driven version of the Linux Audio Conference http://minilac.linuxaudio.org/ http://lac.linuxaudio.org/ See also: http://www.rncbc.org/drupal/node/1026 Enjoy && keep the fun, always! -- rncbc aka. Rui Nuno Capela

8 years, 6 months

TOKOKY

by Andrej Candrák

8 years, 6 months

A question for USB/MIDI experts

by Fons Adriaensen

Hello all, Sadly I won't be able to make it to the miniLAC as work keeps me in München during the weekend :-( For those who'll be there, have a good time ! Meanwhile I'm trying to understand the following: I'm using a Novation LaunchControl (8 pads and 16 rotary controllers). When I use it via ALSA sequencer, I get the expected MIDI events: note on/off, controller, and sysex. When I access it directly as a USB device using libusb, I see the expected MIDI data, but with some extra bytes, e.g. (all values in hex): [09] 90 09 7f (note on) [08] 80 09 00 (note off) [0b] b0 15 23 (controller) [04] f0 00 20 [04] 29 02 0A [07] 77 00 ff (sysex) where the bytes in [] are the ones that are *not* part of the MIDI message. Now since things work perfectly with ALSA sequencer without required a specific driver, either * ALSA knowns about the details of this particular device, * or these extra bytes are part of some standard. Given that there seems to be one extra byte for every three expected ones, could it be that this is some format that encodes 24 bits in 32 ? lsusb output for this device is: Bus 003 Device 004: ID 1235:0034 Focusrite-Novation Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 1.10 bDeviceClass 0 bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 64 idVendor 0x1235 Focusrite-Novation idProduct 0x0034 bcdDevice 0.00 iManufacturer 1 Focusrite A.E. Ltd iProduct 2 Launch Control iSerial 0 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 82 bNumInterfaces 2 bConfigurationValue 1 iConfiguration 0 bmAttributes 0x80 (Bus Powered) MaxPower 60mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 0 bInterfaceClass 1 Audio bInterfaceSubClass 1 Control Device bInterfaceProtocol 0 iInterface 3 Launch Control AudioControl Interface Descriptor: bLength 9 bDescriptorType 36 bDescriptorSubtype 1 (HEADER) bcdADC 1.00 wTotalLength 9 bInCollection 1 baInterfaceNr( 0) 1 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 0 bNumEndpoints 2 bInterfaceClass 1 Audio bInterfaceSubClass 3 MIDI Streaming bInterfaceProtocol 0 iInterface 3 Launch Control MIDIStreaming Interface Descriptor: bLength 7 bDescriptorType 36 bDescriptorSubtype 1 (HEADER) bcdADC 1.00 wTotalLength 46 MIDIStreaming Interface Descriptor: bLength 6 bDescriptorType 36 bDescriptorSubtype 2 (MIDI_IN_JACK) bJackType 1 Embedded bJackID 1 iJack 0 MIDIStreaming Interface Descriptor: bLength 9 bDescriptorType 36 bDescriptorSubtype 3 (MIDI_OUT_JACK) bJackType 1 Embedded bJackID 2 bNrInputPins 1 baSourceID( 0) 1 BaSourcePin( 0) 1 iJack 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 1 MIDIStreaming Endpoint Descriptor: bLength 5 bDescriptorType 37 bDescriptorSubtype 1 (GENERAL) bNumEmbMIDIJack 1 baAssocJackID( 0) 2 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x02 EP 2 OUT bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 1 MIDIStreaming Endpoint Descriptor: bLength 5 bDescriptorType 37 bDescriptorSubtype 1 (GENERAL) bNumEmbMIDIJack 1 baAssocJackID( 0) 1 Any info much appreciated !! Ciao, -- FA A world of exhaustive, reliable metadata would be an utopia. It's also a pipe-dream, founded on self-delusion, nerd hubris and hysterically inflated market opportunities. (Cory Doctorow)

8 years, 6 months

[ANN] Qtractor 0.7.6 - A Hazier Photon is released!

by Rui Nuno Capela

Hey, Spring'16 release frenzy [7] isn't over as of just yet ;) Keeping up with the tradition, Qtractor 0.7.6 (a hazier photon) is released! Qtractor [1] is an audio/MIDI multi-track sequencer application written in C++ with the Qt framework [2]. Target platform is Linux, where the Jack Audio Connection Kit (JACK [3]) for audio and the Advanced Linux Sound Architecture (ALSA [4]) for MIDI are the main infrastructures to evolve as a fairly-featured Linux desktop audio workstation GUI, specially dedicated to the personal home-studio. Website: http://qtractor.sourceforge.net Downloads: http://sourceforge.net/projects/qtractor/files - source tarball: http://download.sf.net/qtractor/qtractor-0.7.6.tar.gz - source package: http://download.sf.net/qtractor/qtractor-0.7.6-24.rncbc.suse.src.rpm - binary packages: http://download.sf.net/qtractor/qtractor-0.7.6-24.rncbc.suse.i586.rpm http://download.sf.net/qtractor/qtractor-0.7.6-24.rncbc.suse.x86_84.rpm Git repos: http://git.code.sf.net/p/qtractor/code https://github.com/rncbc/qtractor Change-log: - Plug-ins search path and out-of-process (aka. dummy) VST plug-in inventory scanning has been heavily refactored. - Fixed and optimized all dummy processing for plugins with more audio inputs and/or outputs than channels on a track or bus where it's inserted. - Fixed relative/absolute path mapping when saving/loading custom LV2 Plug-in State Presets. License: Qtractor [1] is free, open-source Linux Audio [5] software, distributed under the terms of the GNU General Public License (GPL [6]) version 2 or later. References: [1] Qtractor - An audio/MIDI multi-track sequencer http://qtractor.sourceforge.net [2] Qt framework, C++ class library and tools for cross-platform application and UI development http://qt.io/ [3] JACK Audio Connection Kit http://jackaudio.org [4] ALSA, Advanced Linux Sound Architecture http://www.alsa-project.org/ [5] Linux Audio consortium of libre software for audio-related work http://linuxaudio.org [6] GPL - GNU General Public License http://www.gnu.org/copyleft/gpl.html [7] The Qstuff* Spring'16 Release Frenzy http://www.rncbc.org/drupal/node/1026 See also: http://www.rncbc.org/drupal/node/1028 Enjoy && Keep the fun, always. -- rncbc aka. Rui Nuno Capela

8 years, 6 months

Instant DPF effect plugins

by Christopher Arndt

Hi all, I have created a template to set up a DISTRHO Plugin Framework effect plugin project quickly using the (Python) tool cookiecutter. https://github.com/SpotlightKid/cookiecutter-dpf-effect When you have installed cookiecutter, you create a new project with: cookiecutter https://github.com/SpotlightKid/cookiecutter-dpf-effect A directory named after the value you gave for repo_name (e.g. "simplegain") will be created and initialized as a git repository and DPF added as a git submodule. Enter the directory and run make: cd <repo_name> make The template compiles a simple gain plugin. Change the implementation in plugins/<plugin_name>/Plugin<plugin_name>.cpp as needed. Share & Enjoy! Chris

8 years, 6 months

Musikmesse

by Gianfranco Ceccolini

Hi everyone As some of you might know, part of the MOD Team is going to be at the Musikmesse from April 7th to 10th. Unfortunately it clashes with the miniLAC so, differently from last year’s LAC, we won’t be present at the Conference with the entire team as we did last year. For those who won’t be able to attend the miniLAC but can get a day trip, we have available some courtesy visitor one-day-passes to the Musikmesse. They are valid in any of the days form 7th to 10th. If anyone is interested just let us know and we’ll manage a way to hand them over. Best Gianfranco Ceccolini MOD Devices +49 160 646 9313 gianfranco(a)moddevices.com

8 years, 6 months

miniLAC2016: Special guest

by David Runge

Dear miniLAC attendees, we are very excited to announce our special guest for miniLAC2016: Linus Torvalds, the creator of the Linux kernel and the awesome VCS git, himself will attend to the weekend of workshops, lectures and hacking sessions at c-base next weekend. All the best and see you at the space station next week! David -- David Runge Schreinerstraße 11 10247 Berlin http://sleepmap.de

8 years, 6 months

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Linux-audio-dev