/usr/lib/x86_64-linux-gnu/libswresample.so.2 is in libswresample2 7:3.4.2-2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libswresample.so.2.9.100
/usr/lib/x86_64-linux-gnu/libswresample.so.2.9.100