Just in case you're having trouble finding the constants for this like I was. They are as-of-yet unlisted on the predefined constants page.
INTERLACE_UNDEFINED, UndefinedInterlace
INTERLACE_NO, NoInterlace
INTERLACE_LINE, LineInterlace
INTERLACE_PLANE, PlaneInterlace
INTERLACE_PARTITION, PartitionInterlace