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@@ -11,8 +11,21 @@ See the [LICENSE](LICENSE) file for copyright details. |
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| Target | License(s) | License restrictions | Attribution | |
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|-----------------|----------------------|-----------------------|-------------| |
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| JACK/Standalone | MIT (RtAudio) | Copyright attribution | **RtAudio**: 2001-2019 Gary P. Scavone | |
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| LADSPA | LGPLv2.1+ | ??? | 2000-2002 Richard W. E. Furse, Paul Barton-Davis, Stefan Westerfeld | |
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| DSSI | LGPLv2.1+ | ??? | **DSSI**: 2004, 2009 Chris Cannam, Steve Harris and Sean Bolton;<br/> **ALSA**: 1998-2001 Jaroslav Kysela, Abramo Bagnara, Takashi Iwai | |
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| LADSPA | LGPLv2.1+ | ??? (*) | 2000-2002 Richard W. E. Furse, Paul Barton-Davis, Stefan Westerfeld | |
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| DSSI | LGPLv2.1+ | ??? (*) | **DSSI**: 2004, 2009 Chris Cannam, Steve Harris and Sean Bolton;<br/> **ALSA**: 1998-2001 Jaroslav Kysela, Abramo Bagnara, Takashi Iwai | |
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| LV2 | ISC | Copyright attribution | 2006-2020 Steve Harris, David Robillard;<br/> 2000-2002 Richard W.E. Furse, Paul Barton-Davis, Stefan Westerfeld | |
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| 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 | |
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| VST3 | ISC | Copyright attribution | (none, only DPF files used) | |
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### LADSPA and DSSI special note |
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The header files on LADSPA and DSSI are LGPLv2.1+ licensed, which is unusual for pure APIs without libraries. |
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LADSPA authors mention this on ladspa.org homepage: |
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> LADSPA has been released under LGPL (GNU Lesser General Public License). |
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> This is not intended to be the final license for LADSPA. |
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> 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. |
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> It may be that LGPL is already free enough for this, but we aren't sure. |
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So the situation for LADSPA/DSSI plugins is unclear for commercial plugins. |
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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. |
