From a41c97e507d4d4fbd4582e9d67d8ba540ca0ee4e Mon Sep 17 00:00:00 2001 From: falkTX Date: Wed, 29 Sep 2021 12:47:57 +0100 Subject: [PATCH] Add special licensing note for LADSPA and DSSI Signed-off-by: falkTX --- LICENSING.md | 17 +++++++++++++++-- 1 file changed, 15 insertions(+), 2 deletions(-) diff --git a/LICENSING.md b/LICENSING.md index f54a4c6a..3e9f1f86 100644 --- a/LICENSING.md +++ b/LICENSING.md @@ -11,8 +11,21 @@ See the [LICENSE](LICENSE) file for copyright details. | Target | License(s) | License restrictions | Attribution | |-----------------|----------------------|-----------------------|-------------| | JACK/Standalone | MIT (RtAudio) | Copyright attribution | **RtAudio**: 2001-2019 Gary P. Scavone | -| LADSPA | LGPLv2.1+ | ??? | 2000-2002 Richard W. E. Furse, Paul Barton-Davis, Stefan Westerfeld | -| DSSI | LGPLv2.1+ | ??? | **DSSI**: 2004, 2009 Chris Cannam, Steve Harris and Sean Bolton;
**ALSA**: 1998-2001 Jaroslav Kysela, Abramo Bagnara, Takashi Iwai | +| LADSPA | LGPLv2.1+ | ??? (*) | 2000-2002 Richard W. E. Furse, Paul Barton-Davis, Stefan Westerfeld | +| DSSI | LGPLv2.1+ | ??? (*) | **DSSI**: 2004, 2009 Chris Cannam, Steve Harris and Sean Bolton;
**ALSA**: 1998-2001 Jaroslav Kysela, Abramo Bagnara, Takashi Iwai | | LV2 | ISC | Copyright attribution | 2006-2020 Steve Harris, David Robillard;
2000-2002 Richard W.E. Furse, Paul Barton-Davis, Stefan Westerfeld | | VST2 | GPLv2+ or commercial | Must be GPLv2+ compatible or alternatively use Steingberg VST2 SDK (no longer available for new plugins) | GPLv2+ compatible license or custom agreement with Steingberg | | VST3 | ISC | Copyright attribution | (none, only DPF files used) | + +### LADSPA and DSSI special note + +The header files on LADSPA and DSSI are LGPLv2.1+ licensed, which is unusual for pure APIs without libraries. +LADSPA authors mention this on ladspa.org homepage: + +> LADSPA has been released under LGPL (GNU Lesser General Public License). +> This is not intended to be the final license for LADSPA. +> In the long term it is hoped that LADSPA will have a public license that is even less restrictive, so that commercial applications can use it (in a protected way) without having to use a derived LGPL library. +> It may be that LGPL is already free enough for this, but we aren't sure. + +So the situation for LADSPA/DSSI plugins is unclear for commercial plugins. +These formats are very limited and not much used anymore anyway, feel free to skip them if this situation is a potential issue for you.