code: func (d *Driver) StartVideo() (err error) {
  	buf, _ := d.createPacket(videoStartCommand, 0x60, 0)
  	binary.Write(buf, binary.LittleEndian, int16(0x00)) // seq = 0
  	binary.Write(buf, binary.LittleEndian, CalculateCRC16(buf.Bytes()))
  
  	_, err = d.cmdConn.Write(buf.Bytes())
  	return
  }
docs: // StartVideo tells Tello to send start info (SPS/PPS) for video stream.