- member variable is all protect → use method
- constructor → open()
open
- constructor(name, video api)
- constructor(0) means construct and open default camera
- bool open (index, camera api)
- index = camera_id + domain_offset_id
- bool isOpend() const
Realese
- realese() - called by destructor
- read() == >> do same - from first frame (grab() + retrieve())
- int var = cvRound(double get(videocapture property id))
- bool set(prop id, double)