Update app.py

app.py

@@ -414,6 +414,9 @@ def generate_audio_core(video_file, caption):
         status = log_step("📹 Step 2: Checking video duration...")
 
         duration = get_video_duration(mp4_path)
+        if duration > 15:
+            #yield log_step(f"❌ Video duration {duration:.1f}s exceeds the 15s limit. Please upload a shorter video."), None
+            return log_step(f"❌ Video duration {duration:.1f}s exceeds the 15s limit. Please upload a shorter video."), None
         log_step(f"⏱️ Step 2 cost: {time.time() - step_start:.2f}s")
 
         # ---- Step 3: Extract video frames ----