Update app.py

app.py

@@ -192,7 +192,7 @@ with gr.Blocks(css=css) as demo:
                     driving_video = gr.Video(label="Driving Video")
                 with gr.Group():
                     with gr.Row():
-                        best_frame = gr.Number(value=36, label="Best Frame", info="specify the frame index in the driving video where the head pose best matches the source image (note: precision of best_frame index might affect the final quality)")
+                        best_frame = gr.Number(value=18, label="Best Frame", info="specify the frame index in the driving video where the head pose best matches the source image (note: precision of best_frame index might affect the final quality)")
                         out_frames = gr.Number(value=-1, label="Out Frames", info="number of generation frames")
                     with gr.Accordion("Driving video Frames", open=False) as frames_gallery_panel:
                         driving_frames = gr.Gallery(show_label=True, columns=6, height=380, elem_id="frames-gallery")
@@ -232,6 +232,13 @@ with gr.Blocks(css=css) as demo:
         outputs = [driving_video, driving_frames, frames_gallery_panel],
         queue = False
     )
+
+    driving_video.change(
+        fn = load_driving_video,
+        inputs = [driving_video],
+        outputs = [driving_video, driving_frames, frames_gallery_panel],
+        queue = False
+    )
     
     submit_btn.click(
         fn = run_xportrait,