On the screen, the four men turned in unison and began walking toward the camera. As they got closer, the video feed didn't just show the hallway anymore. In the reflection of the polished brass doorknobs, Julian saw his own room. He saw the back of his own head, illuminated by the glow of the laptop.
motion is the critical operator here. It tells the camera software to display feed that detects movement. In practical terms, if a camera is pointed at a static hallway, motion mode activates the encoding/streaming of video only when something changes in the frame. inurl viewerframe mode motion hotel verified