Viewerframe Mode Refresh Verified Instant

In live events (sports, news, gaming), protocols like WebRTC or LL-HLS use "viewerframe mode refresh" to drop outdated frames and catch up to the live edge. Without verification, the player might display old, stale frames, ruining the real-time experience.

| Test Case | Mode | Action | Expected Result | | :--- | :--- | :--- | :--- | | TC-01 | Live | Run 60s stream at 30fps | Frame counter increments smoothly; no tearing | | TC-02 | Strobe | Set interval to 200ms | Frame updates exactly every 200ms ±10ms | | TC-03 | On-Demand | Rapid manual refresh (10 clicks/sec) | No duplicate frames; no UI freeze | | TC-04 | All | Toggle mode mid-refresh | Mode change applies within 1 frame cycle | | TC-05 | Live | Simulate network jitter | Frame refresh skips gracefully, no crash | viewerframe mode refresh verified

After sending a new frame, the server should provide a checksum (e.g., MD5 or SHA-256 of the frame data). The client recalculates the checksum upon receipt. "Verified" is only declared when both match. In live events (sports, news, gaming), protocols like

In critical systems (e.g., surgical displays), loss of “verified” triggers an immediate freeze of the viewerframe and logs the event. The client recalculates the checksum upon receipt