Update app.py

app.py

@@ -39,7 +39,7 @@ def run_generate_low(prompt, neg_prompt, start_img, height, width, duration, cfg
         if start_img:
             num_frames_estimate = int(duration * 24)
             items_list = [[start_img, 0, 1.0]]
-            conditioning_items = video_generation_service._prepare_condition_items(items_list, height, width, num_frames_estimate)
+            conditioning_items = video_generation_service.prepare_condition_items(items_list, height, width, num_frames_estimate)
 
         used_seed = None if randomize_seed else seed
         video_path, tensor_path, final_seed = video_generation_service.generate_low(