Changed back to stream

app.py

@@ -23,7 +23,7 @@ with gr.Blocks() as demo:
             input_img = gr.Image(label="Input", sources="webcam")
         with gr.Column():
             output_lbl = gr.Label(value="Output", label="Expression Prediction")
-        input_img.change(fn=predict, inputs=input_img, outputs=output_lbl)
+        input_img.stream(fn=predict, inputs=input_img, outputs=output_lbl,concurrency_limit=20,time_limit=20,stream_every=0.1)
 
 if __name__ == "__main__":