>>150027174That is a legal delivery. The ball doesn't have to hit the pitch before the batter receives the ball, although that is the most common form of delivery you would see in cricket.
These deliveries are known as full tosses, generally aimed between knee and waist height. They're not usually the most controlled deliveries as you see from the webm, and often result in runs being scored. They are often the result of a bowler making an error in his placement, but are sometimes intentional as well.
A delivery above waist height that does not hit the pitch before reaching the batsman is called a beamer and IS illegal. The bowler will be warned and a 'no ball' called, requiring it to be delivered again and a run being credited to the batting team.
A slight variation is a delivery called a yorker that looks like a full toss but pitches right at the batters toes. A hard ball to deliver accurately, and often the delivery most bowlers will be aiming for when they accidentally bowl a full toss as seen in the webm.