fork from https://sourceforge.net/projects/state-threads, nothing changed.
see: https://github.com/ossrs/state-threads/blob/master/README

For SRS, ST is patched for ARM/VALGRIND, please checkout the ST srs branch.

The State Threads library is a derivative of the Netscape Portable Runtime library (NSPR) and therefore is distributed under the Mozilla Public License (MPL) version 1.1 or the GNU General Public License (GPL) version 2 or later.

You can choose which of the two licenses you want or you can continue the dual license. Commercial interests probably will choose the MPL, and free software advocates likely will prefer the GPL.

For more information, please read LICENSE of ST.