Revert "remove code of nothingless WRT abouttofinish interrupts"
Revert "remove code of nothingless WRT abouttofinish interrupts"

This did in fact properly work prior to the commit. The problem was
elsewhere.

This reverts commit 8deb772b4d4e69e4ccb28871ed4aef7f00cf6952.

KDE/phonon-gstreamer,shadeslayer/phonon-gstreamer,KDE/phonon-gstreamer,shadeslayer/phonon-gstreamer,shadeslayer/phonon-gstreamer