Several licences are used, depending on the project. In brief:
|FLUTE/ALC||Two implementations are available, one is commercial, the other one is open-source (GNU/GPL)||see here|
|NORM||open-source (GNU/GPL)||see here|
|LDPC||open-source (GNU/LGPL for INRIA’s code, and specific for Radford Neals’ code)||see here|
Interested people are invited to see the per-project licence web page, the licence file in the distribution, and/or contact me.