add some debug information in handler.py

handler.py

@@ -41,6 +41,8 @@ class EndpointHandler:
         image_input = data.get("image", None)
         video_input = data.get("video", None)
 
+        print("📨 收到 prompt:", repr(prompt))  # 打印 prompt 内容
+        
         # 判断image输入是路径还是base64字符串
         if image_input:
             if os.path.exists(image_input):
@@ -59,19 +61,39 @@ class EndpointHandler:
                 self.vision_feature = self.chat.get_video_embedding(video_input)
             else:
                 tmp_path = save_base64_to_tempfile(video_input, suffix=".mp4")
+                print("📼 保存临时视频路径:", tmp_path)
                 self.vision_feature = self.chat.get_video_embedding(tmp_path)
                 os.unlink(tmp_path)
             self.modal_type = "video"
             self.chat.conv = get_conv_template("husky").copy()
+            
+            # 🔍 打印中间处理的 video_tensor shape
+            if isinstance(self.vision_feature, torch.Tensor):
+                print("📏 视觉特征张量 shape:", self.vision_feature.shape)
+            else:
+                print("❌ self.vision_feature 不是张量，类型:", type(self.vision_feature))
 
         else:
             self.modal_type = "text"
             self.vision_feature = None
 
-        conversations = self.chat.ask(prompt, self.chat.conv, modal_type=self.modal_type)
-        output = self.chat.answer(conversations, self.vision_feature, modal_type=self.modal_type)
+        try:
+            # ✅ 打印视觉特征存在与否
+            print("🧠 当前 modal_type:", self.modal_type)
+            print("🧠 是否有视觉特征:", self.vision_feature is not None)
+
+            conversations = self.chat.ask(prompt, self.chat.conv, modal_type=self.modal_type)
+            output = self.chat.answer(conversations, self.vision_feature, modal_type=self.modal_type)
+
+            # ✅ 打印 chat.answer 结果
+            print("📤 推理输出:", repr(output.strip()))
 
-        # 更新对话历史
-        self.chat.conv.messages[-1][1] = output.strip()
+            self.chat.conv.messages[-1][1] = output.strip()
+            return {"output": output.strip()}
 
-        return {"output": output.strip()}
+        except Exception as e:
+            # 🧨 如果出错，打印详细报错信息
+            import traceback
+            print("❌ 推理出错:")
+            traceback.print_exc()
+            return {"error": str(e)}