Update app.py

app.py

@@ -9,6 +9,16 @@ from trimesh.exchange.gltf import export_glb
 import numpy as np
 import tempfile
 import copy
+
+def _remove_image_special(text):
+    text = text.replace('<ref>', '').replace('</ref>', '')
+    return re.sub(r'<box>.*?(</box>|$)', '', text)
+
+
+def is_video_file(filename):
+    video_extensions = ['.mp4', '.avi', '.mkv', '.mov', '.wmv', '.flv', '.webm', '.mpeg']
+    return any(filename.lower().endswith(ext) for ext in video_extensions)
+
 def predict(_chatbot, task_history):
     chat_query = _chatbot[-1][0]
     query = task_history[-1][0]