/usr/lib/x86_64-linux-gnu/libccrtp.so is in libccrtp-dev 2.0.9-2.2+b2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libccrtp.so.2.0.6
/usr/lib/x86_64-linux-gnu/libccrtp.so.2.0.6