code.delx.au - pulseaudio/blob - LICENSE

   1 All PulseAudio source files are licensed under the GNU Lesser General Public
   2 License. (see file LGPL for details)
   3
   4 However, the server side has optional GPL dependencies.  These include the
   5 libsamplerate and gdbm (core libraries), LIRC (lirc module), FFTW (equalizer
   6 module) and bluez (bluetooth proximity helper program) libraries, although
   7 others may also be included in the future.  If PulseAudio is compiled with these
   8 optional components, this effectively downgrades the license of the server part
   9 to GPL (see the file GPL for details), exercising section 3 of the LGPL.  In
  10 such circumstances, you should treat the client library (libpulse) of PulseAudio
  11 as being LGPL licensed and the server part (libpulsecore) as being GPL licensed.
  12 Since the PulseAudio daemon, tests, various utilities/helpers and the modules
  13 link to libpulsecore and/or the afore mentioned optional GPL dependencies they
  14 are of course also GPL licensed also in this scenario.
  15
  16 In addition to this, if D-Bus support is enabled, the PulseAudio client library
  17 (libpulse) MAY need to be licensed under the GPL, depending on the license
  18 adopted for libdbus. libdbus is licensed under either of the Academic Free
  19 License 2.1 or GPL 2.0 or above. Which of these applies is your choice, and the
  20 result affects the licensing of libpulse and thus, potentially, all programs
  21 that link to libpulse.
  22
  23 Andre Adrian's echo cancellation implementation is licensed under a less
  24 restrictive license - see src/modules/echo-cancel/adrian-license.txt for
  25 details.
  26
  27 Some other files pulled into PA source (i.e. reference implementations that are
  28 considered too small and stable to be considered as an external library) use the
  29 more permissive MIT license. This include the device reservation DBus protocol
  30 and realtime kit implementations.
  31
  32 Additionally, a more permissive Sun license is used for code that performs
  33 u-law, A-law and linear PCM conversions.
  34
  35 While we attempt to provide a summary here, it is the ultimate responsibility of
  36 the packager to ensure the components they use in their build of PulseAudio
  37 meets their license requirements.