Qtractor

Music Production

Source (required if based on other people's work): https://github.com/rncbc/qtractor

16
Score 88%
Description:

Qtractor is an audio/MIDI multi-track sequencer application written in C++ with the Qt framework. Target platform is Linux, where the Jack Audio Connection Kit (JACK) for audio and the Advanced Linux Sound Architecture (ALSA) for MIDI are the main infrastructures to evolve as a fairly-featured Linux desktop audio workstation GUI, specially dedicated to the personal home-studio.

Features:

- Multi-track audio and MIDI sequencing and recording.
- Developed on the Qt C++ application and UI framework [1].
- Uses JACK [2] for audio and ALSA [3] sequencer for MIDI
as multimedia infrastructures.
- Traditional multi-track tape recorder control paradigm.
- Audio file formats support: OGG (via libvorbis [6]),
MP3 (via libmad [7], playback only), WAV, FLAC, AIFF
and many, many more (via libsndfile [4]).
- Standard MIDI files support (format 0 and 1).
- Non-destructive, non-linear editing.
- Unlimited number of tracks per session/project.
- Unlimited number of overlapping clips per track.
- XML encoded session/project description files (SDI).
- Point-and-click, multi-select, drag-and-drop interaction
(drag, move, drop, cut, copy, paste, paste-repeat, delete, split, merge).
- Unlimited undo/redo.
- Built-in mixer and monitor controls.
- Built-in connection patchbay control and persistence
(a-la QjackCtl [16]).
- LADSPA [5], DSSI [11], native VST [12] and LV2 [13] plug-ins support.
- Unlimited number of plug-ins per track or bus.
- Plug-in presets, programs and chunk/configurations support, including
native VST FXB/FXP file support.
- Unlimited audio/MIDI effect send/return inserts per track or bus.
- Loop-recording/takes.
- Audio/MIDI clip fade-in/out, cross-fade (linear, quadratic, cubic).
- Audio/MIDI clip gain/volume, normalize, export.
- Audio/MIDI track and plugin parameter automation (dynamic curves,
sample&hold, linear and spline modes).
- Audio clip time-stretching (WSOLA-like or via librubberband [9]),
pitch-shifting (via librubberband [9]) and seamless sample-rate
conversion (via libsamplerate [8]).
- Audio/MIDI track export (mix-down, render, merge, freeze).
- Audio/MIDI metronome bar/beat clicks.
- Unlimited tempo/time-signature map.
- Unlimited location/bar markers.
- MIDI clip editor (matrix/piano roll).
- MIDI instrument definitions (a-la Cakewalk(tm) (*.ins) [18]);
SoundFont (*.sf2) and MIDI Names XML (*.midnam) files also supported.
- MIDI controller mapping/learn/assignment (mixer and plug-in parameters).
- MIDI system exclusive (SysEx) setups.
- JACK transport sync master/slave.
- JACK session support.
- NSM (Non Session Management) support [15].
- MMC control surface enabled.
- MIDI Clock, Song Position Pointer (SPP) support.
- Configurable PC-keyboard and MIDI controller shortcuts.
Last changelog:

0.9.1 2018-05-29 Pre-LAC2018 Release Frenzy 1 month ago

- Displaying MIDI note(on) events as diamonds instead of simple rectangles (aka. Drum Mode) is now being introduced as an optional MIDI track property (Drums) and as a MIDI clip editor (piano-roll) visual option (cf. View/Drum Mode).
- Extended multi-selection is now supported on all the Connections client/port lists, allowing for multiple (dis)connections at once.
- Added LV2 UI sample-rate option support.
- Always reset all internal dedicated MIDI controllers, eg. MIDI track volume (CC#7) and panning (CC#10), on Transport/Panic and after rendering export to aud1io (ie. Track/Export Tracks/Audio...) as needed to reset MIDI instrument plugins to nominal session state.
- Fix, detect and preserve MIDI Bank-select method across MIDI track/clips editing operations.
- Fixed MIDI track and clip note min/max display range while recording and also when duplicating tracks.
- Added "All files (*.*)" filter to every file requestor dialog, wherever missing.
- The tiny zoom-magnifier icons have been revamped.

dragonlord79

10 years ago

Hey man you did a really good job with Qtractor !
It was time that a cool audio sequencing application was developed !
To be honest I haven't tried it yet, but I'm following with pleasure your constant improvements and efforts. I am a hard user of Cubase SX and I would really love to definitely switch to Linux also for that purpose, and achieve 0 latency recording and mastering.
The key thing for these applications is a serious VST instruments support. Once you get it you're done ! Have you planned it at all for the future ?

Again, many congratulations !

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rncbc

10 years ago

Thanks, and please, do have a try. It will much appreciated.

Regarding VST support: it is in deed in the workings. On the workbench there's DSSI and native VSTi plug-in support. That's right, with DSSI-VST you will reach windows VSTs through wine, and with native VSTs you should have an open road to native linux VSTs (yes, there are some few out there;)

it's coming, but I can't really tell when it will be ready ;)

byee

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MiTcX

10 years ago

hi,
great app !
i would like to save the project but not in a media file, can we ? like the audacity .aup

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MiTcX

10 years ago

ok, i found it.
maybe the 2 windows when you want to save are unusual, for me

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rncbc

10 years ago

Maybe we're confusing disparate concepts; probably it needs some clarification.

In qtractor, exporting is the process to produce a mix-down of one or several tracks resulting into a brand new media file; it's like rendering audio _or_ MIDI into a new media file (either audio file _or_ SMF, not both).

OTOH, regarding the "project" concept, IIUC, is here known and called as "session", as the program's "working session". This working session is rightly stored as a XML encoded file (.qtr file ext/suffix) as being the complete description of the arrangement, including all audio/MIDI tracks, clips, buses and the whole setup made while operating the application program. Have this noted, that a session file does NOT ever store or include any kind of media contents, rather just the file path references where it might get found in the local file system.

HTH

Cheers && Happy New Year

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mapi

10 years ago

Mandriva 2008.0 i686 rpm here:

http://mandriva.99k.org/

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vwinwv

10 years ago

here is a problem i ran into...


make[1]: Entering directory `/tmp/qtractor-0.0.5.702'
g++ -c -pipe -O2 -Wall -W -D_REENTRANT -DQT_NO_DEBUG -DQT_XML_LIB -DQT_GUI_LIB -DQT_CORE_LIB -I/usr/share/qt4/mkspecs/linux-g++ -I. -I/usr/include/qt4/QtCore -I/usr/include/qt4/QtCore -I/usr/include/qt4/QtGui -I/usr/include/qt4/QtGui -I/usr/include/qt4/QtXml -I/usr/include/qt4/QtXml -I/usr/include/qt4 -Isrc -I/usr/include/qt4 -I/usr/include/qt4 -I/usr/local/include -I/usr/include -I/usr/include/qt4 -I. -I. -I/usr/include/qt4/QtCore -I/usr/include/qt4/QtCore -I/usr/include/qt4/QtGui -I/usr/include/qt4/QtGui -I/usr/include/qt4/QtXml -I/usr/include/qt4/QtXml -I/usr/include/qt4 -Isrc -I/usr/include/qt4 -I/usr/include/qt4 -I/usr/local/include -I/usr/include -I/usr/include/qt4 -I. -I. -o qtractorMainForm.o src/qtractorMainForm.cpp
src/qtractorMainForm.cpp: In constructor ‘qtractorMainForm::qtractorMainForm(QWidget*, Qt::WindowFlags)’:
src/qtractorMainForm.cpp:232: error: ‘class QDoubleSpinBox’ has no member named ‘setKeyboardTracking’
make[1]: *** [qtractorMainForm.o] Error 1
make[1]: Leaving directory `/tmp/qtractor-0.0.5.702'
make: *** [qtractor] Error 2

i did get the ./configure to work...i install qt4-kdecopycat-{core,dev,gui,sql}
libasound2 and dev
ladsps-sdk

but,when i go to make i get this error...i tried the cd/ win32 qmake && make but i get the same thing...any thoughts?

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rncbc

10 years ago

That is a light Qt 4.3 version mismatch somewhere (nb. you're dealing with a Qt4 version suited for KDE4, maybe Qt4.3.0, which I have skipped).

Please, edit src/qtractorMainForm.cpp and change line 232, or around where it reads:

#if QT_VERSION >= x040300
m_pTempoSpinBox->setKeyboardTracking(false);
#endif

change it to:

#if QT_VERSION >= 0x040301
m_pTempoSpinBox->setKeyboardTracking(false);
#endif

or, just get rid of the #if/endif block if you like; it's only usable on >= Qt4.3.1 anyway ;)
--
rncbc aka Rui Nuno Capela

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andreak

10 years ago

Hi.
Apparently Kubuntu only provides the JACK application and not the devel-libs. Or am I wrong? Anybody who can point me to the .debs for "jackd-devel"?

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rncbc

10 years ago

as i used to say, i'm no debian expert, but i do remember that the packages name to look for ought to be libjack-dev, libjack0-dev or even libjack0.100.0-dev on some older dabianese package naming convention.

guess its in ubuntu's universe repository but who am i to tell that for sure :)

cheers.

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andreak

10 years ago

libjack0.100.0-dev did the trick:-)

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burundukkedbl

11 years ago

g++ -c -pipe -O2 -Wall -W -D_REENTRANT -DQT_NO_DEBUG -DQT_XML_LIB -DQT_GUI_LIB -DQT_CORE_LIB -DQT_SHARED -I/usr/lib/qt4/mkspecs/linux-g++ -I. -I/usr/lib/qt4/include/QtCore -I/usr/lib/qt4/include/QtGui -I/usr/lib/qt4/include/QtXml -I/usr/lib/qt4/include -Isrc -I/usr/lib/qt4/include -I/usr/local/include -I/usr/include -I. -I. -o qtractorFileListView.o src/qtractorFileListView.cpp
src/qtractorFileListView.cpp: In member function ‘void qtractorFileListView::itemClickedSlot(QTreeWidgetItem*)’:
src/qtractorFileListView.cpp:594: error: ‘class qtractorFileGroupItem’ has no member named ‘setExpanded’
src/qtractorFileListView.cpp:594: error: ‘class qtractorFileGroupItem’ has no member named ‘isExpanded’

Mandriva Linux 2007 qt 4.1.4

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rncbc

11 years ago

Oops. You're on Qt 4.1, the offending code is already over Qt 4.2, sorry.

As quick workaround you may edit the offending file, src/qtractorFileListView.cpp, line 594, and where you read:

pGroupItem->setExpanded(!pGroupItem->isExpanded());

substitute it exactly by:

setItemExpanded(pGroupItem, !isItemExpanded(pGroupItem));

or you can wait and I will fix that on CVS in a few minutes :)

Cheers.

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burundukkedbl

11 years ago

from last svn objects compiled normally? but when linking see this:
qtractorMidiClip.o: In function `qtractorMidiClip::seek(unsigned long)':
qtractorMidiClip.cpp:(.text+0xd1): undefined reference to `qtractorMidiCursor::seek(qtractorMidiSequence*, unsigned long)'
qtractorMidiClip.o: In function `qtractorMidiClip::reset(bool)':
qtractorMidiClip.cpp:(.text+0x279): undefined reference to `qtractorMidiCursor::reset(qtractorMidiSequence*, unsigned long)'
qtractorMidiClip.o: In function `qtractorMidiClip::process(unsigned long, unsigned long)':
qtractorMidiClip.cpp:(.text+0x4d7): undefined reference to `qtractorMidiCursor::seek(qtractorMidiSequence*, unsigned long)'
qtractorMidiClip.o: In function `qtractorMidiClip::drawClip(QPainter*, QRect const&, unsigned long)':
qtractorMidiClip.cpp:(.text+0x742): undefined reference to `qtractorMidiCursor::reset(qtractorMidiSequence*, unsigned long)'
qtractorMidiClip.o: In function `qtractorMidiClip::qtractorMidiClip(qtractorTrack*)':
qtractorMidiClip.cpp:(.text+0x9ae): undefined reference to `qtractorMidiCursor::qtractorMidiCursor()'
qtractorMidiClip.cpp:(.text+0x9bc): undefined reference to `qtractorMidiCursor::qtractorMidiCursor()'
qtractorMidiClip.o: In function `qtractorMidiClip::qtractorMidiClip(qtractorTrack*)':
qtractorMidiClip.cpp:(.text+0xaae): undefined reference to `qtractorMidiCursor::qtractorMidiCursor()'
qtractorMidiClip.cpp:(.text+0xabc): undefined reference to `qtractorMidiCursor::qtractorMidiCursor()'
qtractorMidiClip.o: In function `qtractorMidiClip::openMidiFile(qtractorMidiFile*, int)':
qtractorMidiClip.cpp:(.text+0xc8a): undefined reference to `qtractorMidiCursor::reset(qtractorMidiSequence*, unsigned long)'
qtractorMidiClip.cpp:(.text+0xca7): undefined reference to `qtractorMidiCursor::reset(qtractorMidiSequence*, unsigned long)'
qtractorMidiClip.o: In function `qtractorMidiClip::qtractorMidiClip(qtractorMidiClip const&)':
qtractorMidiClip.cpp:(.text+0xf10): undefined reference to `qtractorMidiCursor::qtractorMidiCursor()'
qtractorMidiClip.cpp:(.text+0xf1e): undefined reference to `qtractorMidiCursor::qtractorMidiCursor()'
qtractorMidiClip.o: In function `qtractorMidiClip::qtractorMidiClip(qtractorMidiClip const&)':
qtractorMidiClip.cpp:(.text+0x1020): undefined reference to `qtractorMidiCursor::qtractorMidiCursor()'
qtractorMidiClip.cpp:(.text+0x102e): undefined reference to `qtractorMidiCursor::qtractorMidiCursor()'
collect2: ld returned 1 exit status

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rncbc

11 years ago

I guess you've updated from CVS alright, but somehow you probably forgot to regenerate the autoconf stuff.

Remember, when checking out from CVS you must do the `make -f Makefile.cvs` all over gain.

Seeya.

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burundukkedbl

11 years ago

It's working. Thank's. :o)

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montoya

11 years ago

And for export into .ogg or .mp3 my project?

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rncbc

11 years ago

Export is not yet featured. Keep in mind this is still alpha stage on development.

But you can bounce your session into a new track. Just add a new empty audio track, connect the outputs of all other tracks to the input of this new one, arm it for recording and start record+play. There you go, you'll be recording (in real time, though) what would be the result of a future export operation.

Depending on your current audio capture option (see menu View/Options.../Audio/Capture) the captured file might be in the Ogg Vorbis format.

There is no current nor future plans for MP3 encoding support, so that's a definite NO for the last half of your question. Remember that MP3 is only supported on playback. It has nasty technical drawbacks and its not a very wise choice for audio recording altogether. Choose OGG instead, or better yet, FLAC. That's only my opinion, of course.

Cheers.

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montoya

11 years ago

"The audio/MIDI engine could not be started.

Make sure the JACK audio server (jackd) and/or
the ALSA Sequencer kernel module (snd-seq-midi)
are up and running and then restart the session."

I install all librearies (also jackd) but playlist not run :(

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rncbc

11 years ago

You have to start jackd sound server in first place. Make it a try with yours truelly QjackCtl :)

But, if its the very first time you are dealing with jackd, please be prepared that things might get harsh before you have a full top-notch audio system under you rig :)

In summary you'll have to make sure you, as a user, have realtime scheduler privileges.

Check your /etc/security/limits.conf file for some entries like this ones:

@audio - rtprio 90
@audio - nice -10
@audio - memlock 4000000

Then you have to add yourself (the username) part of the audio group. For the fast track, and most promiscuous too, just replace '@audio' by '*' in the above lines.

After those modifications, which should be carried on by root anyway, you must relogin as your regular user and then start jackd. If you're lacking QjackCtl GUI friendliness, you can start it from the command line, like this:

$ jackd -R -dalsa -dhw:0 -r44100 -p1024 -n2

Another issue could be that the ALSA sequencer kernel module might not be currently loaded. You can get the head-start by doing it as root:

# modprobe snd-seq-midi

From now on you can hit qtractor and start playing around. I hope you get the picture all right.

Cheers.

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montoya

11 years ago

I have this errors:

fra@debian:~/Desktop/qtractor-0.0.1.582$ make
make[1]: Entering directory `/home/fra/Desktop/qtractor-0.0.1.582'
g++ -c -pipe -O2 -Wall -W -D_REENTRANT -DQT_NO_DEBUG -DQT_XML_LIB -DQT_GUI_LIB -DQT_CORE_LIB -I/usr/share/qt4/mkspecs/linux-g++ -I. -I/usr/include/qt4/QtCore -I/usr/include/qt4/QtCore -I/usr/include/qt4/QtGui -I/usr/include/qt4/QtGui -I/usr/include/qt4/QtXml -I/usr/include/qt4/QtXml -I/usr/include/qt4 -Isrc -I/usr/local/include -I/usr/include -I/usr/include/qt4 -I. -I. -o qtractorConnections.o src/qtractorConnections.cpp
src/qtractorConnections.cpp: In constructor 'qtractorConnections::qtractorConnections(QWidget*)':
src/qtractorConnections.cpp:51: error: invalid use of undefined type 'struct qtractorConnectForm'
src/qtractorConnections.h:31: error: forward declaration of 'struct qtractorConnectForm'
src/qtractorConnections.cpp:53: error: invalid use of undefined type 'struct qtractorConnectForm'
src/qtractorConnections.h:31: error: forward declaration of 'struct qtractorConnectForm'
src/qtractorConnections.cpp:58: error: 'QHBoxLayout' was not declared in this scope
src/qtractorConnections.cpp:58: error: 'pLayout' was not declared in this scope
src/qtractorConnections.cpp:58: error: expected type-specifier before 'QHBoxLayout'
src/qtractorConnections.cpp:58: error: expected `;' before 'QHBoxLayout'
src/qtractorConnections.cpp:85: error: invalid use of undefined type 'struct qtractorConnectForm'
src/qtractorConnections.h:31: error: forward declaration of 'struct qtractorConnectForm'
src/qtractorConnections.cpp:87: error: invalid use of undefined type 'struct qtractorConnectForm'
src/qtractorConnections.h:31: error: forward declaration of 'struct qtractorConnectForm'
src/qtractorConnections.cpp: In destructor 'virtual qtractorConnections::~qtractorConnections()':
src/qtractorConnections.cpp:102: error: invalid use of undefined type 'struct qtractorConnectForm'
src/qtractorConnections.h:31: error: forward declaration of 'struct qtractorConnectForm'
src/qtractorConnections.cpp:104: error: invalid use of undefined type 'struct qtractorConnectForm'
src/qtractorConnections.h:31: error: forward declaration of 'struct qtractorConnectForm'
src/qtractorConnections.cpp:109: warning: possible problem detected in invocation of delete operator:
src/qtractorConnections.cpp:109: warning: invalid use of undefined type 'struct qtractorConnectForm'
src/qtractorConnections.h:31: warning: forward declaration of 'struct qtractorConnectForm'
src/qtractorConnections.cpp:109: note: neither the destructor nor the class-specific operator delete will be called, even if they are declared when the class is defined.
src/qtractorConnections.cpp: In member function 'void qtractorConnections::showBus(qtractorBus*, qtractorBus::BusMode)':
src/qtractorConnections.cpp:188: error: invalid use of undefined type 'struct qtractorConnectForm'
src/qtractorConnections.h:31: error: forward declaration of 'struct qtractorConnectForm'
src/qtractorConnections.cpp:190: error: invalid use of undefined type 'struct qtractorConnectForm'
src/qtractorConnections.h:31: error: forward declaration of 'struct qtractorConnectForm'
src/qtractorConnections.cpp:191: error: invalid use of undefined type 'struct qtractorConnectForm'
src/qtractorConnections.h:31: error: forward declaration of 'struct qtractorConnectForm'
src/qtractorConnections.cpp:192: error: invalid use of undefined type 'struct qtractorConnectForm'
src/qtractorConnections.h:31: error: forward declaration of 'struct qtractorConnectForm'
src/qtractorConnections.cpp:194: error: invalid use of undefined type 'struct qtractorConnectForm'
src/qtractorConnections.h:31: error: forward declaration of 'struct qtractorConnectForm'
src/qtractorConnections.cpp:197: error: invalid use of undefined type 'struct qtractorConnectForm'
src/qtractorConnections.h:31: error: forward declaration of 'struct qtractorConnectForm'
src/qtractorConnections.cpp:198: error: invalid use of undefined type 'struct qtractorConnectForm'
src/qtractorConnections.h:31: error: forward declaration of 'struct qtractorConnectForm'
src/qtractorConnections.cpp:200: error: invalid use of undefined type 'struct qtractorConnectForm'
src/qtractorConnections.h:31: error: forward declaration of 'struct qtractorConnectForm'
src/qtractorConnections.cpp:202: error: invalid use of undefined type 'struct qtractorConnectForm'
src/qtractorConnections.h:31: error: forward declaration of 'struct qtractorConnectForm'
src/qtractorConnections.cpp:204: error: invalid use of undefined type 'struct qtractorConnectForm'
src/qtractorConnections.h:31: error: forward declaration of 'struct qtractorConnectForm'
src/qtractorConnections.cpp:213: error: invalid use of undefined type 'struct qtractorConnectForm'
src/qtractorConnections.h:31: error: forward declaration of 'struct qtractorConnectForm'
src/qtractorConnections.cpp:215: error: invalid use of undefined type 'struct qtractorConnectForm'
src/qtractorConnections.h:31: error: forward declaration of 'struct qtractorConnectForm'
src/qtractorConnections.cpp:216: error: invalid use of undefined type 'struct qtractorConnectForm'
src/qtractorConnections.h:31: error: forward declaration of 'struct qtractorConnectForm'
src/qtractorConnections.cpp:217: error: invalid use of undefined type 'struct qtractorConnectForm'
src/qtractorConnections.h:31: error: forward declaration of 'struct qtractorConnectForm'
src/qtractorConnections.cpp:220: error: invalid use of undefined type 'struct qtractorConnectForm'
src/qtractorConnections.h:31: error: forward declaration of 'struct qtractorConnectForm'
src/qtractorConnections.cpp:224: error: invalid use of undefined type 'struct qtractorConnectForm'
src/qtractorConnections.h:31: error: forward declaration of 'struct qtractorConnectForm'
src/qtractorConnections.cpp:225: error: invalid use of undefined type 'struct qtractorConnectForm'
src/qtractorConnections.h:31: error: forward declaration of 'struct qtractorConnectForm'
src/qtractorConnections.cpp:228: error: invalid use of undefined type 'struct qtractorConnectForm'
src/qtractorConnections.h:31: error: forward declaration of 'struct qtractorConnectForm'
src/qtractorConnections.cpp:231: error: invalid use of undefined type 'struct qtractorConnectForm'
src/qtractorConnections.h:31: error: forward declaration of 'struct qtractorConnectForm'
src/qtractorConnections.cpp:233: error: invalid use of undefined type 'struct qtractorConnectForm'
src/qtractorConnections.h:31: error: forward declaration of 'struct qtractorConnectForm'
src/qtractorConnections.cpp: In member function 'void qtractorConnections::refresh()':
src/qtractorConnections.cpp:253: error: invalid use of undefined type 'struct qtractorConnectForm'
src/qtractorConnections.h:31: error: forward declaration of 'struct qtractorConnectForm'
src/qtractorConnections.cpp: In member function 'void qtractorConnections::clear()':
src/qtractorConnections.cpp:260: error: invalid use of undefined type 'struct qtractorConnectForm'
src/qtractorConnections.h:31: error: forward declaration of 'struct qtractorConnectForm'
make[1]: *** [qtractorConnections.o] Error 1
make[1]: Leaving directory `/home/fra/Desktop/qtractor-0.0.1.582'
make: *** [qtractor] Error 2

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rncbc

11 years ago

I've found that my autoconf/qmake wrapping always clashes on debian. On debian based distros (e.g. ubuntu), it has come to my knowledge, deployment of the Qt devel tools (qmake, uic, moc) is not as usual and somehow the debianese folks decided to rename the executables to somethink like qmake-qt4, moc-qt4, uic-qt4 and what not. This is braindead broken IMO, and it surely is non standard. Why on earch would one rename the original executable files? Betas me.

OK. Let's try another way.

First of all make certain you have all Qt4 devel tools installed. That is qmake, moc and uic. As said, probably those are renamed with the -qt4 suffix. You have to cheack that out. Let's assume qmake has been renamed to qmake-qt4.

Second, make sure you have all the dependencies also in place, that are libjack, libasound (alsa), libsndfile, ladspa, libvorbis(enc, file) and libmad, specially the devel ones.

Third, on the qtractor source tree you may find the win32 sub-directory. Move in there and just type `qmake-qt4 && make`.

Hopefully it will build fine, and you'll end there with the `qtractor` executable ready to run and play.

Enjoy.

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montoya

11 years ago

Thanks ;) now work it. I execute your 3° option: qmake && make.

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wolffc

11 years ago

Hi, it's not "braindead broken" it's just a way of having qt3 and qt4 coexist in the FHS.

You just need to adjust debians "alternatives" system (man update-alternatives) or, if you still compile against qt3 more often, set some environment variables in the shell, you use to build the qt4 program:
export LD_LIBRARY_PATH=/usr/lib:$LD_LIBRARY_PATH
export PATH=/usr/share/qt4/bin:$PATH
export QTDIR=/usr/share/qt4
export QT_PLUGIN_PATH=/usr/share/qt4/plugins
unset XDG_CONFIG_DIRS
unset XDG_DATA_DIRS

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rncbc

11 years ago

Thanks for the heads-up on FHS.

Ah,... on so-called "sane" distros (aka not "braindead broken", sorry for the pun) qt3 and qt4 do coexist. And that's what I'm used to. Setting the build environment for each one has been just a matter of PATH tweaking, if one at all. Not a debianese mess, even if its FHS compliant or what. Sorry again :)

Particular problem with Qt deployment on debian seems to be the way that Qt programs, headers, libraries and what not, are kept splintered across the file system. On "sane but FHS broken" distros, all of the Qt tree is usually kept under one single point. Just a minor cost of a particular distro non-standard design ;)

Of course, I should know better that debian guys/gals always know what they're doing :)

Sorry for the twisted humor, and most of all, just plain debian ignorance ;)

Now, back to reality, does it help in any way having this one for a start?

$ ./configure --with-qt=/usr/share/qt4

Just trying... but I'm afraid, due to the way my reasoning works, it should also fail on debian FHS splintering :P

Cheers.

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0.9.1 2018-05-29 Pre-LAC2018 Release Frenzy 1 month ago

- Displaying MIDI note(on) events as diamonds instead of simple rectangles (aka. Drum Mode) is now being introduced as an optional MIDI track property (Drums) and as a MIDI clip editor (piano-roll) visual option (cf. View/Drum Mode).
- Extended multi-selection is now supported on all the Connections client/port lists, allowing for multiple (dis)connections at once.
- Added LV2 UI sample-rate option support.
- Always reset all internal dedicated MIDI controllers, eg. MIDI track volume (CC#7) and panning (CC#10), on Transport/Panic and after rendering export to aud1io (ie. Track/Export Tracks/Audio...) as needed to reset MIDI instrument plugins to nominal session state.
- Fix, detect and preserve MIDI Bank-select method across MIDI track/clips editing operations.
- Fixed MIDI track and clip note min/max display range while recording and also when duplicating tracks.
- Added "All files (*.*)" filter to every file requestor dialog, wherever missing.
- The tiny zoom-magnifier icons have been revamped.

0.9.0 2018-03-22 Early Spring'18 Beta 3 months ago

- New View/Options.../Plugins/Experimental/Show plugins on track list/left pane option is in effect on tracks that are tall enough in height for their plugins list to fit on the Bus column.
- Fixed a day-zero bug over the MIDI Insert (Send/Return) pseudo-plugin, which was duplicating MIDI events onto the next LV2 plugin in chain, causing strange hanging notes, mutes, retriggerings and what not.
- MIDI track and clip note min/max range display now fixed.
- MIDI Program Change events (PC) now have their proper program number as parameter, instead of value, on the internal MIDI event representation.
- Merging MIDI clips while on SMF Format 0 has been fixed: was merging always onto the same MIDI channel (2), most often the wrong one, resulting in an empty or blank clip.
- When importing from standard MIDI files (SMF), set track names from Mtrk TRACKNAME meta-events instead of filename.
- Avoid asking to save as to existing or just newly created clip file-names, whenever possible.
- Disable singleton/unique application instance setup logic when the display server platform is not X11.
- Whether to use native file browser/requester dialogs is now an effective option when launching under NSM session management (was once disabled initially).
- Content files are now saved as symlinks when saving to JACK and/or NSM session directories/folders.
- Trying to get CC14 MSB+LSB (course+fine) running status on, no matter whether each pairing event are under 200ms apart.
- Possible VST plug-in GUI reparenting hack/fix on Qt5/Xcb.

0.8.6 2018-01-30 Winter'18 Beta 5 months ago

- Added LV2_UI_updateRate option support.
- Added brand new option to deactivate plugins only if they can produce sound cf. main menu Track/Auto Deactivate (by Andreas Müller aka. schnitzeltony, thanks).
- Workaround native file dialogs hang up by setting parent widget to NULL; it should be noted that dialogs now get an own entry in the task-bar (also by Andreas Müller aka. schnitzeltony, thanks).
- Added ARM NEON acceleration support (by Andreas Müller aka. schnitzeltony, thanks).
- Track count "limit" and a "Delta" mode flag, for momentary and encoded controllers support, have been added to MIDI Controllers generic mapping (cf. View/Controllers...; after an original pull-request by Holger Dehnhardt, thanks).
- A little hardening on the configure (autoconf) macro side.
- Pinned current/hi-lighted track dangling after removal.
- An anti-flooding timer is now in place in MIDI Controller assignment (aka. MIDI learn) dialog.
- Add MMC Track input monitor support.
- New user preference option: View/Options.../General/Options /Reverse keyboard modifiers role (Shift/Ctrl), applied to main transport re-positioning commands: Trasnport/Backward, Forward, etc.
- VST Time/Transport information is now also updated as on playing when in audio export aka. freewheeling mode.
- LXVST_PATH environment variable now takes precedence over VST_PATH as Linux-native VST plug-ins search path.
- MIDI Controllers mapped to non-toggling shortcuts now work as one-shot triggers, independent of MIDI event value.

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updated May 29 2018
added Apr 14 2007
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