add random seed

app.py

@@ -400,6 +400,10 @@ def prepare_infer_func():
 def inference(prompt, ref_images, seed, size_level, infer_func=None):
     start_time = time.time()
 
+    if seed == -1:
+        import random 
+        random_seed = random.randint(0, 2**32 - 1)
+
     image = infer_func(
         prompt,
         negative_prompt="",
@@ -407,13 +411,13 @@ def inference(prompt, ref_images, seed, size_level, infer_func=None):
         num_samples=1,
         num_steps=28,
         cfg_guidance=6.0,
-        seed=seed,
+        seed=random_seed,
         show_progress=True,
         size_level=size_level,
     )[0]
     
     print(f"Time taken: {time.time() - start_time:.2f} seconds")
-    return image
+    return image, random_seed
 
 
 def create_demo():