Mode Refresh | Viewerframe

: In "Refresh" mode, the camera does not stream. Instead, it serves a single JPEG image that the browser must manually or automatically request again at a set frequency. This is often used as a fallback for browsers that do not support MJPEG or to conserve bandwidth. Key Implementation Details

Most standard UI frameworks rely on a passive refresh model—they update only when the data changes. However, ViewerFrame contexts are unique because they often contain stateful renderers (like WebGL contexts, video decoders, or canvas elements). When you switch modes without a proper refresh, the following issues arise: viewerframe mode refresh

dirtyRects.push_back(newDirty);