Hi All

I'm looking to get a site off the ground, where

users can upload videos
other users vote for that video
Videos can be shared via social media

The aim is to run a contest with the most popular video wining a prize.

I know there are several video scripts that are youtube like clones which allow you to upload/share videos, however, would anyone know if there are any with a voting system or should I be looking to get something custom coded?

Cheers
Perry