import streamlit as st
from io import BytesIO
import base64

st.title("Video Player")

def allowed_file(filename):
    return '.' in filename and filename.rsplit('.', 1)[1].lower() in ['mp4']

uploaded_file = st.file_uploader("Select a video", type=None)

if uploaded_file:
    if allowed_file(uploaded_file.name):
        video_bytes = uploaded_file.getvalue()
        st.video(video_bytes)
    else:
        st.write("Error: Only MP4 files are allowed.")