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licensing.rst

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Licensing

Source code

Roc Toolkit source code is licensed under MPL-2.0.

Included third-party code

The following third-party code is included in Roc Toolkit source tree:

  • dr_wav (MIT-0)
  • hedley (CC0)
  • Lock-Free free list implementation by Cameron Desrochers (BSD 2-Clause)

Each component retains its original license notice within its source files. The complete Roc Toolkit distribution is available under MPL-2.0, as all included third-party code is compatible with this license.

Dependencies

Roc Toolkit depends on several external libraries. The effective license of your final application will depend on which dependencies you enable during build.

Review the :doc:`dependencies page </building/dependencies>` for detailed license information. You may want to disable dependencies with strong copyleft licenses (such as GPL) at build time to maintain license compatibility with your project.

OpenFEC

OpenFEC is an optional but very useful dependency that allows to restore lost packets. OpenFEC source code has several licenses. Most of the code is licensed under CeCCIL-C, which is LGPL-like. LDPC-Staircase codec, however, is licensed under CeCCIL, a stricter GPL-like license. There are also portions under BSD-like and CC BY-SA licenses that may require attribution.

OpenFEC If you can't fulfill CeCCIL requirements, you can build OpenFEC with LDPC-Staircase disabled. When using our fork, you can pass -DOF_USE_LDPC_STAIRCASE_CODEC=OFF option to cmake. Alternatively, you can disable OpenFEC dependency altogether by passing --disable-openfec option to scons, but then you won't have loss recovery.