/usr/lib/x86_64-linux-gnu/libbzrtp.so is in libbzrtp-dev 1.0.2-1.1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libbzrtp.so.0.0.0
/usr/lib/x86_64-linux-gnu/libbzrtp.so.0.0.0