Update app.py

app.py

@@ -131,10 +131,18 @@ def main():
         
         source_path = None
         uploaded_file = None
-        if source_type == "Video File":
-            uploaded_file = st.file_uploader("Choose a video file", type=['mp4', 'avi', 'mov'])
-            if uploaded_file:
-                source_path = BytesIO(uploaded_file.getvalue())
+        if source_type == "Video File" and source_path:
+            # Create a temporary file with a specific extension
+            temp_dir = tempfile.gettempdir()
+            temp_path = os.path.join(temp_dir, 'temp_video.mp4')
+            with open(temp_path, 'wb') as f:
+                f.write(source_path.getvalue())
+            
+            cap = cv2.VideoCapture(temp_path)
+            if not cap.isOpened():
+                st.error("Error: Could not open video file. Please ensure it's a supported format (MP4 with H.264 encoding recommended)")
+                return None
+            return cap
         elif source_type == "RTSP Stream":
             source_path = st.text_input("Enter RTSP URL", placeholder="rtsp://your-camera-url")