feat: 视频上传

src/utils/tools.ts

@@ -109,4 +109,26 @@ export function downloadByUrl(url: string, filename?: string) {
 
 export function genRandomId() {
   return `id_${Date.now()}_${Math.floor(Math.random() * 10000)}`;
+}
+
+export function formatFileSize(bytes: number): string {
+  if (bytes === 0) return '0 Bytes';
+  
+  const k = 1024;
+  const sizes = ['Bytes', 'KB', 'MB', 'GB', 'TB'];
+  const i = Math.floor(Math.log(bytes) / Math.log(k));
+  
+  return parseFloat((bytes / Math.pow(k, i)).toFixed(2)) + ' ' + sizes[i];
+}
+
+export function getVideoDuration(file: any) {  
+  return new Promise((resolve) => {
+    const video = document.createElement('video');
+    video.preload = 'metadata';
+    video.onloadedmetadata = function() {
+      window.URL.revokeObjectURL(video.src);
+      resolve(video.duration);
+    };
+    video.src = URL.createObjectURL(file);
+  });
 }