Update app.py

app.py

@@ -93,10 +93,10 @@ You'll get a 3D trajectory plot, annotated replay, and OUT/NOT OUT decision.
 
             def on_video_upload(video_file):
                 if video_file is None:
-                    return None
+                    return ""
                 file_path = video_file.name if hasattr(video_file, "name") else video_file
                 return save_uploaded_video(file_path, video_file)
-
+            video_output = gr.Textbox(visible=False)
             video_input.change(
                 fn=on_video_upload,
                 inputs=[video_input],
@@ -123,7 +123,6 @@ After recording or uploading a video, switch to the **LBW Review** tab and click
             trajectory_plot_output = gr.Image(label="3D Trajectory plot")
 
             def on_analyse(_):
-                video_path = out_video_path.value
                 if not video_path or not os.path.exists(video_path):
                     return (
                         "Please record or upload a video in the first tab.",
@@ -143,7 +142,7 @@ After recording or uploading a video, switch to the **LBW Review** tab and click
 
             analyse_button.click(
                 fn=on_analyse,
-                inputs=[analyse_button],
+                inputs=[video_output],
                 outputs=[
                     decision_output,
                     ball_speed_output,