RTSP vs ONVIF vs HTTP: Which Protocol Should You Use?

RTSP — Real-Time Streaming Protocol

Best for: Live video streaming from IP cameras.

RTSP is the industry standard for transmitting live video over IP networks. Supported by virtually all cameras. Low latency, bandwidth-efficient. Works with browsers via MSE/WebSocket on RTSP.cam. Video only — no camera control (PTZ, settings).

ONVIF — Open Network Video Interface Forum

Best for: Camera discovery, PTZ control, event handling.

ONVIF is a standard for controlling cameras and discovering them on the network. Supports PTZ, motion detection events, and interoperability between brands. Video streaming via ONVIF is usually RTSP underneath.

HTTP — HyperText Transfer Protocol

Best for: Camera web interface, snapshots, configuration.

HTTP is used for the camera admin panel and snapshot URLs. Universal, works through any firewall. MJPEG over HTTP uses 5-10x more bandwidth than RTSP — not suitable for continuous streaming.

When to Use Each

• Just watch video: Use RTSP. Try RTSP.cam.
• Control camera (PTZ): Use ONVIF.
• Admin panel: Use HTTP.
• Take snapshot: Use HTTP URL or ONVIF.
• NVR integration: RTSP for video + ONVIF for control.