Considering the image-video interleave conversation.

app.py

@@ -132,22 +132,24 @@ def generate(image, video, message, chatbot, textbox_in, temperature, top_p, max
     else:
         # scanning the last image or video
         length = len(chatbot)
-        for i in range(length - 1, -1):
+        for i in range(length - 1, -1, -1):
             previous_image = re.findall(r'<img src="./file=(.+?)"', chatbot[i][0])
             previous_video = re.findall(r'<video controls playsinline width="500" style="display: inline-block;"  src="./file=(.+?)"', chatbot[i][0])
 
             if len(previous_image) > 0:
                 previous_image = previous_image[-1]
                 # 2.1 new image append or pure text input will start a new conversation
-                if video is not None or (image is not None and os.path.basename(previous_image) != os.path.basename(image)):
+                if (video is not None) or (image is not None and os.path.basename(previous_image) != os.path.basename(image)):
                     message.clear()
                     one_turn_chat[0] += "\n" + show_images
+                break
             elif len(previous_video) > 0:
                 previous_video = previous_video[-1]
                 # 2.2 new video append or pure text input will start a new conversation
                 if image is not None or (video is not None and os.path.basename(previous_video) != os.path.basename(video)):
                     message.clear()
                     one_turn_chat[0] += "\n" + show_images
+                break
 
     message.append({'role': 'user', 'content': textbox_in})
     text_en_out = handler.generate(data, message, temperature=temperature, top_p=top_p, max_output_tokens=max_output_tokens)