Update app.py

app.py

@@ -221,8 +221,7 @@ def inference_and_return_video(dilation_iterations, num_inference_steps, video_s
     return video_file
 
 @spaces.GPU(duration=60)
-def track_video(n_frames):
-    global video_state
+def track_video(n_frames,video_state):
     input_points = video_state["input_points"]
     input_labels = video_state["input_labels"]
     frame_idx = video_state["frame_idx"]
@@ -285,7 +284,7 @@ def track_video(n_frames):
     video_file = f"/tmp/{time.time()}-{random.random()}-tracked_output.mp4"
     clip = ImageSequenceClip(output_frames, fps=15)
     clip.write_videofile(video_file, codec='libx264', audio=False, verbose=False, logger=None)
-    return video_file
+    return video_file,video_state
 
 text = """
 <div style='text-align:center; font-size:32px; font-family: Arial, Helvetica, sans-serif;'>