Ladspa

LADSPA support

Note that LADSPA support is experimental currently so this page is intended mainly for developers.

Compiling with LADSPA support enabled

Required packages: ladspa-sdk

Compiling Mixxx with LADSPA support:

scons ladspa=1

Installing

If you're updating from a previous version of Mixxx, you'll need to reinstall the skins (as root):

rm -Rf /usr/local/share/mixxx/skins
scons install

(the directory can be different, e.g. /usr/share/mixxx)

Presets are now in Trunk <del> You'll also need some presets. Just download ladspa_presets.tar.bz2 and extract the directory ladspa_presets to your Mixxx share directory (as root):

tar -C /usr/local/share/mixxx/ -xjf ladspa_presets.tar.bz2

</del>

Required plugins

I'm not sure if Debian package names are correct.

Preset	Plugin(s)	Library	Debian package	Gentoo package	Homepage
Compressor	Compress	caps.so	caps	caps-plugins	http://quitte.de/dsp/caps.html
PlateReverb	Plate2x2	caps.so	caps	caps-plugins	http://quitte.de/dsp/caps.html
Delay5s	delay_5s	cmt.so or delay.so	cmt	ladspa-cmt	http://www.ladspa.org/cmt
DJFlanger	djFlanger	dj_flanger_1438.so	swh-plugins	swh-plugins	http://plugin.org.uk
Karaoke	karaoke	karaoke_1409.so	swh-plugins	swh-plugins	http://plugin.org.uk

Using

The LADSPA window is hidden by default. You can enable it by activating LADSPA > Show LADSPA window from the menu.

Currently the following skins are supported: outlineSmall, outline, outlineClose, traditional, hercules, nCut, Collusion (1280), Collusion (1280-WS).

Integration into Trunk TODO

All the LADSPA code is already in trunk, it just needs to be enabled by default. In order for us to do this "right", here's the stuff that needs to be done:

• Integrate LADSPA window into main window (in progress by Albert)
• Make LADSPA pane use QGridLayout
• Remove LADSPA menu
• Pick the default LADSPA plugins:
• Make sure we have preset XML files for all of these.
• Build them on OS X, recommend them on Linux, repack Audacity plugin build on Windows or have installer fetch them from Audacity's site.
• Use pre-built plugins for Win32 (Audacity win32 LADSPA Plugins) and Linux (cmt, caps, swh-plugins).
• Add LADSPA presets and plugins to trunk
• Modify SConscript to install them on OS X, Linux (and move to dist dir on Win32)
• Modify mixxx.nsi to install/uninstall them on Windows
• Update src/debian/rules file (might not need editing, but doublecheck)

    * Figure out deployment strategy for Linux:
       * On Windows/OS X, we'll just bundle them
       * ... but on Linux, we may only want to ship the presets files and require users to install their distro's LADSPA plugins package (Anyone have ideas here?)