Coverity 1139613
It is needed to update location properties and it was being lost on state changes, causing issues if the pipeline was to be reused
It only gets the sink flag set when it adds the multifilesink, that happens in null->ready and it might be too late. Set the flag explicitly on the constructor. https://bugzilla.gnome.org/show_bug.cgi?id=711086
gnutls is used to implement AES decryption