First release

node_modules/@videojs/vhs-utils/src/media-groups.js

@@ -0,0 +1,22 @@
+/**
+ * Loops through all supported media groups in master and calls the provided
+ * callback for each group
+ *
+ * @param {Object} master
+ *        The parsed master manifest object
+ * @param {string[]} groups
+ *        The media groups to call the callback for
+ * @param {Function} callback
+ *        Callback to call for each media group
+ */
+export const forEachMediaGroup = (master, groups, callback) => {
+  groups.forEach((mediaType) => {
+    for (const groupKey in master.mediaGroups[mediaType]) {
+      for (const labelKey in master.mediaGroups[mediaType][groupKey]) {
+        const mediaProperties = master.mediaGroups[mediaType][groupKey][labelKey];
+
+        callback(mediaProperties, mediaType, groupKey, labelKey);
+      }
+    }
+  });
+};