Update

public/ffmpeg_packages/util/webpack.config.cjs

@@ -0,0 +1,12 @@
+const path = require("path");
+
+module.exports = {
+  mode: "production",
+  entry: "./dist/cjs/index.js",
+  output: {
+    library: "FFmpegUtil",
+    libraryTarget: "umd",
+    filename: "index.js",
+    path: path.resolve(__dirname, "dist", "umd"),
+  },
+};