On Sat, 2019-02-23 at 16:06 +0100, Pali Rohár wrote: > Hello, > > I would like to discuss about licence problems with usage of LDAC > encoder libldac in pulseaudio. LDAC is a codec used by some Sony > bluetooth headsets and it would be nice to have support for it after my > patch series for Modular API for A2DP codecs is merged. > > There is only one released LDAC encoder. It is libldac which can be > found at: https://android.googlesource.com/platform/external/libldac/ > It is licensed under Apache License Version 2.0. > > If I understood correctly pulseaudio is licensed under LGPL v2.1 or > later with some exceptions when some optional GPL dependences are > enabled then server part is licensed under GPL v2 or later. So it can be > distributed under GPL v3, right? Please correct me if I'm wrong. > > According to FSF https://www.gnu.org/licenses/license-list.html#apache2 > Apache License Version 2.0 is compatible with GPL v3, but is > incompatible with GPL v2. > > So, would it be feasible to write LDAC specific code for pulseaudio > under GPL v3 license (in separate files) and make compile time option to > enable/disable GPL v3 LDAC support? When enabled it would mean that > compiled binary of puleaudio server and server modules are forced to be > distributed under GPL v3 and thanks to compatibility with Apache License > Version 2.0, it would be possible to use libdac library. When disabled > then it would be like before (without LDAC and with license like > before). Am I correct? Yes, I believe you're correct, and at least I am fine with adding LDAC support via libldac. -- Tanu https://www.patreon.com/tanuk https://liberapay.com/tanuk _______________________________________________ pulseaudio-discuss mailing list pulseaudio-discuss@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/pulseaudio-discuss
