Update app.py

app.py

@@ -39,6 +39,9 @@ demo = gr.Interface(
     title=title,
     description=description
 )
+
+demo_video = gr.Video(value="DDMDeepsort1.mp4", label="Demo Video")
+
 html_content = """
 <div style="text-align: center;">
     <h1>Welcome to My Video Processing App</h1>
@@ -50,6 +53,7 @@ html_content = """
 """
 with demo:
     gr.HTML(html_content)
+    demo_video
 
 demo.launch()