adding button to download the video output

app.py

@@ -1125,7 +1125,7 @@ video_generation_interface = gr.Interface(
         gr.Slider(minimum=4, maximum=60, value=24, step=1, label="FPS"),
         gr.Slider(minimum=1.0, maximum=10.0, value=4.0, step=0.5, label="Duration (s)"),
     ],
-    outputs=gr.Video(label="Generated Video"),
+    outputs=gr.Video(label="Generated Video", show_download_button=True, format="mp4"),
     title="Video Generation",
     description=(
     "<div style=\"text-align:center\">Generate short videos via Hugging Face Inference Providers. "