clean cache when exit
clean cache when exit

lheric/GitlHEVCAnalyzer,linqiaozhou/GitlHEVCAnalyzer,lheric/GitlHEVCAnalyzer,lheric/GitlHEVCAnalyzer,linqiaozhou/GitlHEVCAnalyzer,linqiaozhou/GitlHEVCAnalyzer