+void
+TextContent::set_dcp_track (DCPTextTrack t)
+{
+ maybe_set (_dcp_track, t, TextContentProperty::DCP_TRACK);
+}
+
+void
+TextContent::unset_dcp_track ()
+{
+ maybe_set (_dcp_track, optional<DCPTextTrack>(), TextContentProperty::DCP_TRACK);
+}
+