ref: c57288b6b6bdc05f8497721d37b6867b74eb79a2
parent: e9980927f7ddd347981839aec144441aa78258d4
author: Guangwei <guangwwa@cisco.com>
date: Tue Aug 7 10:23:04 EDT 2018
delete test samples which turn out to be clips from actual movie trailers