1. Curl(7.66.0)
Licensed under the BSD License, which is available at https://curl.se/docs/copyright.html
2. Paho(1.2.0)
https://github.com/eclipse/paho.mqtt.c
Licensed under the Eclipse Public License - v 2.0 , which is available at https://github.com/eclipse/paho.mqtt.c/blob/master/LICENSE
3. Mbed_tls(2.16.3)
https://tls.mbed.org
Licensed under the Apache License 2.0, which is available at https://github.com/Mbed-TLS/mbedtls/blob/development/LICENSE
4. ffmpeg(4.4)
http://ffmpeg.org/
Licensed under GNU Lesser General Public License (LGPL) version 2.1, available at http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
5.zlib(1.2.11)
Licensed under the BSD License, which is available at https://www.zlib.net/zlib_license.html
6. minizip(2.9.3)
http://www.winimage.com/zLibDll/minizip.html
Licensed under the BSD License, which is available at https://github.com/zlib-ng/minizip-ng/blob/master/LICENSE
7.libx264(0.148.0.0)
http://www.videolan.org/developers/x264.html
Licensed under the GNU Lesser General Public License, version 2.0, which is available at https://www.gnu.org/licenses/old-licenses/gpl-2.0.html
9. libyuv(1747)
https://chromium.googlesource.com/libyuv/libyuv
Licensed under the BSD License, which is available at https://chromium.googlesource.com/libyuv/libyuv/+/HEAD/LICENSE
9. libopus(1.3.1)
Licensed under the BSD License, which is available at https://opus-codec.org/license/
10. speex
Licensed under the BSD License, which is available at http://www.xiph.org/licenses/bsd/speex/
11. opus
Licensed under the BSD License, which is available at https://opus-codec.org/license/
12. LZMA(7zip)
LZMA SDK is placed in the public domain.
Anyone is free to copy, modify, publish, use, compile, sell, or distribute the original LZMA SDK code, either in source code form or as a compiled binary, for any purpose, commercial or non-commercial, and by any means.
13. openssl
https://www.openssl.org
Licensed under the dual OpenSSL and SSLeay License, which is available at https://www.openssl.org/source/license-openssl-ssleay.txt
14. jsoncpp
https://github.com/open-source-parsers/jsoncpp/
Licensed under the MIT License, which is available at https://github.com/open-source-parsers/jsoncpp/blob/master/LICENSE