snapshot of https://github.com/jitsi/jitsi-meet.git @ fd1749dd28f4138aa80234fc7f311b19aaffa0e7 (2026-09-15)

react/features/large-video/subscriber.web.ts

@@ -0,0 +1,38 @@
+// @ts-expect-error
+import VideoLayout from '../../../modules/UI/videolayout/VideoLayout';
+import StateListenerRegistry from '../base/redux/StateListenerRegistry';
+import { getVideoTrackByParticipant } from '../base/tracks/functions.web';
+
+import { getLargeVideoParticipant } from './functions';
+
+/**
+ * Updates the on stage participant video.
+ */
+StateListenerRegistry.register(
+    /* selector */ state => state['features/large-video'].participantId,
+    /* listener */ participantId => {
+        VideoLayout.updateLargeVideo(participantId, true);
+    }
+);
+
+/**
+ * Schedules a large video update when the streaming status of the track associated with the large video changes.
+ */
+StateListenerRegistry.register(
+    /* selector */ state => {
+        const largeVideoParticipant = getLargeVideoParticipant(state);
+        const videoTrack = getVideoTrackByParticipant(state, largeVideoParticipant);
+
+        return {
+            participantId: largeVideoParticipant?.id,
+            streamingStatus: videoTrack?.streamingStatus
+        };
+    },
+    /* listener */ ({ participantId, streamingStatus }, previousState: any = {}) => {
+        if (streamingStatus !== previousState.streamingStatus) {
+            VideoLayout.updateLargeVideo(participantId, true);
+        }
+    }, {
+        deepEquals: true
+    }
+);