From 83dfb67f2310011bff9da41e0108422b15fb71e7 Mon Sep 17 00:00:00 2001
From: William Liang <wliang67@bloomberg.net>
Date: Thu, 29 Sep 2022 11:26:07 -0400
Subject: [PATCH] fix(video-mute) prevent multiple camera track creation

---
 conference.js | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/conference.js b/conference.js
index 6374507f5..bb9400208 100644
--- a/conference.js
+++ b/conference.js
@@ -459,6 +459,11 @@ export default {
      */
     _localTracksInitialized: false,
 
+    /**
+     * Flag used to prevent the creation of another local video track in this.muteVideo if one is already in progress.
+     */
+    isCreatingLocalTrack: false,
+
     isSharingScreen: false,
 
     /**
@@ -1028,11 +1033,13 @@ export default {
 
         const localVideo = getLocalJitsiVideoTrack(APP.store.getState());
 
-        if (!localVideo && !mute) {
+        if (!localVideo && !mute && !this.isCreatingLocalTrack) {
             const maybeShowErrorDialog = error => {
                 showUI && APP.store.dispatch(notifyCameraError(error));
             };
 
+            this.isCreatingLocalTrack = true;
+
             // Try to create local video if there wasn't any.
             // This handles the case when user joined with no video
             // (dismissed screen sharing screen or in audio only mode), but
@@ -1054,6 +1061,9 @@ export default {
                     logger.debug(`muteVideo: calling useVideoStream for track: ${videoTrack}`);
 
                     return this.useVideoStream(videoTrack);
+                })
+                .finally(() => {
+                    this.isCreatingLocalTrack = false;
                 });
         } else {
             // FIXME show error dialog if it fails (should be handled by react)