Video upload system through media from computer or mobile

Hello i'm using this WordPress theme-http://motors.stylemixthemes.com/classified/ In this page(http://motors.stylemixthemes.com/classified/add-car/) when someone want to add car.They will get a option to upload video from youtube.But i want to make a option so that user can add video from mobile or computer. Any body can help please? enter image description here