Fix crash when closing video window
Fix crash when closing video window

insidegui/WWDC,kosicki123/WWDC,SampleLiao/WWDC,happyeverydayzhh/WWDC,liric28/WWDC,davieds/WWDC,SoneeJohn/WWDC,xqz001/WWDC,xqz001/WWDC,davieds/WWDC,insidegui/WWDC,liric28/WWDC,SampleLiao/WWDC,kosicki123/WWDC,MaddTheSane/WWDC,happyeverydayzhh/WWDC,insidegui/WWDC,qzs21/WWDC,kosicki123/WWDC,natecook1000/WWDC,SoneeJohn/WWDC,vamsirajendra/WWDC,vamsirajendra/WWDC,qzs21/WWDC,insidegui/WWDC