List of best mirrors for IP address 3.142.195.79, located in an unknown country.
I am very sorry, but no mirror was found. Feel free to download directly:
http://mirrordirector-mb.raspbian.org/raspbian/pool/main/g/gstreamermm-1.0/libgstreamermm-1.0-1_1.10.0+dfsg-5_armhf.deb