Bina camera on kiye video recording kaise kare(how to capture a video without open camera) HD

hello,,pahle aap hmare channel ko subscribe kr le,,, dosto ap is video me jan skte h ki bina camera on kiye video kaise bnaye ,,hm kisi ldki ki ya fir koi bhi secret video bna skte h or samne wale ko pta bhi ni chlega...subscribe kare share kare or like karna na bhoole