liBDSM is released under LGPLv2.1 (or later) and is also available
under a commercial license.

By contributing to this project, you allow VideoLabs to reship the
unmodified code under a commercial license.
You also allow VideoLAN and VideoLabs to relicense the project to a
different open source license, never more restrictive than the LGPL
(like a BSD/MIT/Apache license).

===
