/usr/lib/libQtGStreamer-0.10.so.0 is in libqtgstreamer-0.10-0 0.10.1-2ubuntu4.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/libQtGStreamer-0.10.so.0.10.1
/usr/lib/libQtGStreamer-0.10.so.0.10.1