Move uniqueness filter from getQualityOptions to setQualityMenu

src/js/controls.js

@@ -641,9 +641,10 @@ const controls = {
         const type = 'quality';
         const list = this.elements.settings.panes.quality.querySelector('ul');
 
-        // Set options if passed and filter based on config
+        // Set options if passed and filter based on uniqueness and config
         if (utils.is.array(options)) {
-            this.options.quality = options.filter(quality => this.config.quality.options.includes(quality));
+            this.options.quality = utils.dedupe(options)
+                .filter(quality => this.config.quality.options.includes(quality));
         }
 
         // Toggle the pane and tab

src/js/html5.js

@@ -20,12 +20,9 @@ const html5 = {
     // Get quality levels
     getQualityOptions() {
         // Get sizes from <source> elements
-        const sizes = html5.getSources.call(this)
+        return html5.getSources.call(this)
             .map(source => Number(source.getAttribute('size')))
             .filter(Boolean);
-
-        // Reduce to unique list
-        return utils.dedupe(sizes);
     },
 
     extend() {