Update app.py

app.py

@@ -99,11 +99,12 @@ def video_inference(video_file):
 # Button Toggle Function
 def toggle_button(has_result):
     """
-    Returns button label and visibility states based on whether a result has been generated.
+    Returns visibility states for start_again_btn and start_btn based on has_result.
     """
     if has_result:
-        return "Start Again", gr.Button(visible=True), gr.Button(visible=False)
-    return "Start", gr.Button(visible=False), gr.Button(visible=True)
+        return gr.update(visible=True), gr.update(visible=False)
+    else:
+        return gr.update(visible=False), gr.update(visible=True)
 
 # Build the Gradio App
 def build_app():
@@ -120,13 +121,13 @@ def build_app():
         with gr.Row():
             with gr.Column():
                 video = gr.Video(
-                    source="webcam",
+                    sources=["webcam"],
                     label="Webcam Recording",
                     format="mp4"
                 )
                 # Two buttons: one for Start, one for Start Again
-                start_again_btn = gr.Button("Start Again", visible=False)
                 start_btn = gr.Button("Start", visible=True)
+                start_again_btn = gr.Button("Start Again", visible=False)
             with gr.Column():
                 output_text = gr.Textbox(label="Model Output")
 
@@ -147,7 +148,7 @@ def build_app():
         has_result.change(
             fn=toggle_button,
             inputs=has_result,
-            outputs=[start_again_btn, start_again_btn, start_btn]
+            outputs=[start_again_btn, start_btn]
         )
 
         # Clicking either button resets the video and output