Code Editor for app.py

import streamlit as st
import yt_dlp
from moviepy.editor import VideoFileClip
import os
import tempfile

st.title("YouTube to TikTok Clipper")
st.write("Create TikTok clips from YouTube videos most viewed moments")

# Input for YouTube URL
youtube_url = st.text_input("Enter YouTube video URL")

# Duration selector for clip
clip_duration = st.slider("Select clip duration (seconds)", min_value=5, max_value=60, value=15)

if youtube_url and st.button("Generate Clip"):
    try:
        with st.spinner("Processing video..."):
            # Create a temporary directory to store files
            temp_dir = tempfile.mkdtemp()
            output_path = os.path.join(temp_dir, "output.mp4")
            
            # Download YouTube video
            ydl_opts = {
                'format': 'best[height<=1080]',
                'outtmpl': os.path.join(temp_dir, 'video.mp4'),
            }
            
            with yt_dlp.YoutubeDL(ydl_opts) as ydl:
                # Get video info
                info = ydl.extract_info(youtube_url, download=True)
                video_duration = info.get('duration')
                title = info.get('title')
                
                st.write(f"Video Title: {title}")
                st.write(f"Duration: {video_duration} seconds")
                
                # For this example, we'll take a clip from the middle of the video
                # In a real application, you would need to analyze view statistics
                # to find the most viewed moments
                start_time = (video_duration - clip_duration) // 2
                
                # Load the video and create clip
                with VideoFileClip(os.path.join(temp_dir, 'video.mp4')) as video:
                    # Create clip
                    clip = video.subclip(start_time, start_time + clip_duration)
                    
                    # Resize for TikTok (1080x1920)
                    clip_resized = clip.resize(height=1920)
                    
                    # Write the final clip
                    clip_resized.write_videofile(
                        output_path,
                        codec='libx264',
                        audio_codec='aac'
                    )
                
                # Display the clip
                with open(output_path, 'rb') as f:
                    video_bytes = f.read()
                    st.video(video_bytes)
                
                # Download button
                st.download_button(
                    label="Download TikTok Clip",
                    data=video_bytes,
                    file_name="tiktok_clip.mp4",
                    mime="video/mp4"
                )
                
    except Exception as e:
        st.error(f"An error occurred: {str(e)}")
    finally:
        # Cleanup temporary files
        if 'temp_dir' in locals():
            import shutil
            shutil.rmtree(temp_dir)

st.markdown("""
### Instructions:
1. Paste a YouTube video URL
2. Select the desired clip duration
3. Click "Generate Clip" to create a TikTok-formatted video
4. Download the clip and upload it to TikTok

Note: This demo creates a clip from the middle of the video. A full version would analyze view statistics to find the most engaging moments.
""")