diff --git a/bigbluebutton-html5/imports/ui/components/video-provider/service.js b/bigbluebutton-html5/imports/ui/components/video-provider/service.js
index 33d2ced3e8bc9807f7275f4b10988c568f40de55..a52ec5773369a2280cd409b835743427c537594f 100755
--- a/bigbluebutton-html5/imports/ui/components/video-provider/service.js
+++ b/bigbluebutton-html5/imports/ui/components/video-provider/service.js
@@ -501,11 +501,11 @@ class VideoService {
       this.applyBitrate(peer, bitrate);
     }
 
-    if (constraints && typeof constraints.video === 'object') {
+    if (constraints && typeof constraints === 'object') {
       peer.peerConnection.getSenders().forEach(sender => {
         const { track } = sender;
         if (track && track.kind === 'video' && typeof track.applyConstraints  === 'function') {
-          let normalizedVideoConstraints = this.reapplyResolutionIfNeeded(track, constraints.video);
+          let normalizedVideoConstraints = this.reapplyResolutionIfNeeded(track, constraints);
           track.applyConstraints(normalizedVideoConstraints)
             .then(() => {
               logger.info({
diff --git a/bigbluebutton-html5/private/config/settings.yml b/bigbluebutton-html5/private/config/settings.yml
index 7f1b56445a25c69b88ec9dc63e4642f396b9dc70..4958a10c7d23c6b478eb00e8b3a6d1c59d5ef3ad 100755
--- a/bigbluebutton-html5/private/config/settings.yml
+++ b/bigbluebutton-html5/private/config/settings.yml
@@ -116,49 +116,49 @@ public:
         - window
         - screen
       firefoxScreenshareSource: window
+    # cameraProfiles is an array of:
+    # - id: profile identifier
+    #   name: human-readable profile name
+    #   bitrate
+    #   hidden: whether this profile will be hidden in the video preview dropdown
+    #   constraints: a video media constraints dictionary (without the video key)
     cameraProfiles:
       - id: low-u30
         name: low-u30
         bitrate: 30
         hidden: true
         constraints:
-           video:
-              frameRate: 3
+          frameRate: 3
       - id: low-u25
         name: low-u25
         bitrate: 40
         hidden: true
         constraints:
-           video:
-              frameRate: 3
+          frameRate: 3
       - id: low-u20
         name: low-u20
         bitrate: 50
         hidden: true
         constraints:
-           video:
-              frameRate: 5
+          frameRate: 5
       - id: low-u15
         name: low-u15
         bitrate: 70
         hidden: true
         constraints:
-           video:
-              frameRate: 8
+          frameRate: 8
       - id: low-u12
         name: low-u12
         bitrate: 90
         hidden: true
         constraints:
-           video:
-              frameRate: 10
+          frameRate: 10
       - id: low-u8
         name: low-u8
         bitrate: 100
         hidden: true
         constraints:
-           video:
-              frameRate: 10
+          frameRate: 10
       - id: low
         name: Low quality
         default: false
@@ -181,6 +181,10 @@ public:
     enableListenOnly: true
     autoShareWebcam: false
     skipVideoPreview: false
+    # Entry `thresholds` is an array of:
+    # - threshold: minimum number of cameras being shared for profile to applied
+    #   profile: a camera profile id from the cameraProfiles configuration array
+    #            that will be applied to all cameras when threshold is hit
     cameraQualityThresholds:
       enabled: false
       thresholds: