app.py

import gradio as gr

def greet(name):
    return "Hello " + name + "!!"

#def video_identity(video):
#    return hello

examples = [
    "https://ak.picdn.net/shutterstock/videos/21179416/preview/stock-footage-aerial-shot-winter-forest.mp4",
    "https://ak.picdn.net/shutterstock/videos/5629184/preview/stock-footage-senior-couple-looking-through-binoculars-on-sailboat-together-shot-on-red-epic-for-high-quality-k.mp4",
    "https://ak.picdn.net/shutterstock/videos/1063125190/preview/stock-footage-a-beautiful-cookie-with-oranges-lies-on-a-green-tablecloth.mp4"
]
iface = gr.PlayableVideo(examples[0])
#iface = gr.Interface(video_identity, 
#                    gr.Video(), 
#                    "playable_video", 
#                    examples=examples,
#                    cache_examples=True)

#iface = gr.Interface(fn=greet, inputs="text", outputs="text")
iface.launch()