Update app.py

app.py

@@ -341,6 +341,10 @@ def blur_image(image, depth, blur_data):
 def loadfile(f):
     return f
 
+def switch_dir(f):
+    print(f)
+    return gr.FileExplorer(root_dir=os.path.realpath(f))
+
 
 def select_frame(v, evt: gr.SelectData):
     global frame_selected
@@ -514,7 +518,8 @@ with gr.Blocks(css=css, js=js) as demo:
     with gr.Row():
         with gr.Column():
             input_url = gr.Textbox(value="./examples/streetview.mp4", label="URL")
-            input_file = gr.FileExplorer(elem_id="file_in", glob="*.mp4", root_dir="/tmp/gradio/", label="Files")
+            input_file = gr.FileExplorer(elem_id="file_in", glob="*", root_dir="/tmp/gradio/", label="Files")
+            input_url.input(switch_dir, inputs=[input_url], outputs=[input_file])
             input_video = gr.Video(label="Input Video", format="mp4")
             input_url.input(fn=loadfile, inputs=[input_url], outputs=[input_video])
             input_file.change(fn=loadfile, inputs=[input_file], outputs=[input_video])