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This removes one unnecessary exception in the PulseAudio licensing terms. In December 2016 I asked permission from all qpaeq contributors for the license change, and all gave the permission. I have archived the emails here: https://www.freedesktop.org/software/pulseaudio/misc/qpaeq_relicensing_emails.txt
41 lines
2.1 KiB
Plaintext
41 lines
2.1 KiB
Plaintext
All PulseAudio source files, except as noted below, are licensed under the GNU
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Lesser General Public License. (see file LGPL for details)
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However, the server side has optional GPL dependencies. These include the
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libsamplerate and gdbm (core libraries), LIRC (lirc module) and FFTW (equalizer
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module), although others may also be included in the future. If PulseAudio is
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compiled with these optional components, this effectively downgrades the
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license of the server part to GPL (see the file GPL for details), exercising
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section 3 of the LGPL. In such circumstances, you should treat the client
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library (libpulse) of PulseAudio as being LGPL licensed and the server part
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(libpulsecore) as being GPL licensed. Since the PulseAudio daemon, tests,
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various utilities/helpers and the modules link to libpulsecore and/or the afore
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mentioned optional GPL dependencies they are of course also GPL licensed also
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in this scenario.
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In addition to this, if D-Bus support is enabled, the PulseAudio client library
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(libpulse) MAY need to be licensed under the GPL, depending on the license
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adopted for libdbus. libdbus is licensed under either of the Academic Free
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License 2.1 or GPL 2.0 or above. Which of these applies is your choice, and the
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result affects the licensing of libpulse and thus, potentially, all programs
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that link to libpulse.
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Andre Adrian's echo cancellation implementation is licensed under a less
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restrictive license - see src/modules/echo-cancel/adrian-license.txt for
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details.
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Some other files pulled into PA source (i.e. reference implementations that are
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considered too small and stable to be considered as an external library) use the
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more permissive MIT license. These include the device reservation DBus protocol
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and realtime kit implementations.
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A more permissive BSD-style license is used for LFE filters, see
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src/pulsecore/filter/LICENSE.WEBKIT for details.
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Additionally, a more permissive Sun license is used for code that performs
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u-law, A-law and linear PCM conversions.
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While we attempt to provide a summary here, it is the ultimate responsibility of
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the packager to ensure the components they use in their build of PulseAudio
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meets their license requirements.
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