Code Editor for app.py

import streamlit as st
import tempfile
import os
from datetime import timedelta

st.title("Video Editor")
st.write("Upload a video file to edit its playback settings")

# File uploader
uploaded_file = st.file_uploader("Choose a video file", type=['mp4', 'mov', 'avi', 'mkv'])

if uploaded_file is not None:
    # Save uploaded file to temporary location
    with tempfile.NamedTemporaryFile(delete=False, suffix='.mp4') as tmp_file:
        tmp_file.write(uploaded_file.read())
        video_path = tmp_file.name
    
    st.success("Video uploaded successfully!")
    
    # Video editing controls
    st.subheader("Video Controls")
    
    col1, col2 = st.columns(2)
    
    with col1:
        start_time = st.number_input("Start time (seconds)", min_value=0, value=0)
        autoplay = st.checkbox("Autoplay", value=False)
        muted = st.checkbox("Muted", value=False)
    
    with col2:
        end_time = st.number_input("End time (seconds)", min_value=0, value=0)
        loop = st.checkbox("Loop", value=False)
    
    # Subtitle upload
    st.subheader("Subtitles (Optional)")
    subtitle_file = st.file_uploader("Upload subtitle file", type=['vtt', 'srt'])
    
    # Display video with settings
    st.subheader("Video Preview")
    
    video_kwargs = {
        'autoplay': autoplay,
        'loop': loop,
        'muted': muted
    }
    
    # Add start time if specified
    if start_time > 0:
        video_kwargs['start_time'] = start_time
    
    # Add end time if specified
    if end_time > 0:
        video_kwargs['end_time'] = end_time
    
    # Add subtitles if uploaded
    if subtitle_file is not None:
        with tempfile.NamedTemporaryFile(delete=False, suffix='.vtt') as subtitle_tmp:
            subtitle_tmp.write(subtitle_file.read())
            video_kwargs['subtitles'] = subtitle_tmp.name
    
    # Display the video
    with open(video_path, 'rb') as video_file:
        video_bytes = video_file.read()
        st.video(video_bytes, **video_kwargs)
    
    # Video information
    st.subheader("Video Information")
    st.write(f"Original filename: {uploaded_file.name}")
    st.write(f"File size: {len(video_bytes) / (1024*1024):.2f} MB")
    
    # Clean up temporary files
    try:
        os.unlink(video_path)
        if 'subtitles' in video_kwargs:
            os.unlink(video_kwargs['subtitles'])
    except:
        pass

else:
    st.info("Please upload a video file to get started")
    
    # Show example with a sample video URL
    st.subheader("Example with YouTube Video")
    st.write("Here's an example with a YouTube video:")
    
    example_url = "https://www.youtube.com/watch?v=dQw4w9WgXcQ"
    st.video(example_url, start_time=10, end_time=30)
    
    st.code(f'st.video("{example_url}", start_time=10, end_time=30)')