So far all I hear is Greek. Koloko will know who most of them are.
I finally got a chance to look at the link. The prayers are in fact in Greek with a little Arabic thrown in. The vested hierarchs are likely Eastern hierarchs in communion with Rome. The Patriarch of Constantinople, the Patriarch of Roumania and the Archbishop of Greece are the ones in black to the left of the coffin as one looks at it. The prayers said are those for the burial of a Christian and are graveside prayers. The Xristos Anestis was chanted becuase in the Church of Rome Easter has already been celebrated. In one part you hear the words "en topo fotino etc." There they are praying that God will give rest "...to your servant John Paul, the Pope and Bishop of Rome in a place of light, in a place of refreshment, where there is no pain, sorrow or suffering...." The Orthodox here will recognize the prayers.