Copyrights and Licenses

Software Copyrights

All original source code in this repository is Copyright (C) 2015-2018 Espressif Systems. This source code is licensed under the ESPRESSIF MIT License as described in the file LICENSE.

Additional third party copyrighted code is included under the following licenses:

  • mp3 library is Copyright (c) 2005-2008, The Android Open Source Project, and is licensed under the Apache License Version 2.0.

  • aac library is Copyright (c) 2005-2008, The Android Open Source Project, and is licensed under the Apache License Version 2.0.

  • amr library is Copyright (C) 2009 Martin Storsjo and is licensed under the Apache License Version 2.0.

  • opus library, Copyright 2001-2011 Xiph.Org, Skype Limited, Octasic,Jean-Marc Valin, Timothy B. Terriberry, CSIRO, Gregory Maxwell, Mark Borgerding, Erik de Castro Lopo, is licensed under 3-clause BSD license.

  • flac library, Copyright (C) 2011-2016 Xiph.Org Foundation, is licensed under Xiph.Org’s BSD-like license.

  • vorbis library, Copyright (c) 2002-2020 Xiph.org Foundation, is licensed under the 3-Clause BSD license.

Please refer to the COPYRIGHT in ESP-IDF Programming Guide

Where source code headers specify Copyright & License information, this information takes precedence over the summaries made here.