Aren't there only three types of camera work: long, mid and up? Wouldn't it be only three videos? :o
It's complicated.
There's Long, which can have the camera bounce/tracking turned on or off (That's 2)
There's Mid, which has 4 separate angles (Up/Down/Left/Right) which has camera bounce/tracking turned on or off (That's 8)
There's Up, which has 4 separate angles (Up/Down/Left/Right) which has camera bounce/tracking turn on or off (And here it's actually apparent, because you'll see the idol you're focusing on have their head go out of frame because it's not tracking their head) which gives it another 8.
I forget if the default is one in its own right (Which would make it up/down/left/right/neutral) but I don't think so, so the total is actually 18 (not 17, only cause Long DOES permit a tracking on/off, but the effects are very, very hard to spot)