[Huliwang]

cctvv normally at a  high angle..so this is not cctv footage
somemore he audio is clear..which mean he camea is next to them

Depends how far they were sitting from the camera. If the camera is directly overhead, of course cannot get the picture like in the clip. If they are sitting about 30 feet away from the camera, the camera should be able to capture them at an oblique angle which will appear like in the video clip. 
If the camera was a police camera from outside the shop, then the angle will be much better.