/usr/lib/x86_64-linux-gnu/libQtGStreamerUtils-0.10.so.0 is in libqtgstreamerutils-0.10-0 0.10.2-2ubuntu2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libQtGStreamerUtils-0.10.so.0.10.2