Initial commit

utils/getVideoDuration.ts

@@ -0,0 +1,34 @@
+// utils/getVideoDuration.ts
+export async function getVideoDuration(file: File): Promise<number> {
+  return new Promise((resolve, reject) => {
+    // create an object URL for the file
+    const url = URL.createObjectURL(file);
+    const video = document.createElement('video');
+
+    // Make sure it doesn't try to load UI, just metadata
+    video.preload = 'metadata';
+    video.src = url;
+
+    const cleanup = () => {
+      URL.revokeObjectURL(url);
+      video.removeAttribute('src');
+      video.load();
+    };
+
+    video.addEventListener('loadedmetadata', () => {
+      // duration in seconds (float)
+      const duration = video.duration;
+      cleanup();
+      // Some encodings return Infinity — guard that
+      if (!isFinite(duration) || duration <= 0) {
+        return reject(new Error('Could not determine duration'));
+      }
+      resolve(Math.round(duration)); // return integer seconds
+    });
+
+    video.addEventListener('error', (e) => {
+      cleanup();
+      reject(new Error('Error reading video metadata'));
+    });
+  });
+}