README.md

---
title: AI Video Clipper
emoji: 🎬
colorFrom: purple
colorTo: pink
sdk: gradio
sdk_version: 5.42.0
app_file: app.py
pinned: false
license: mit
short_description: Transform long videos into viral short clips using AI
tags:
- video-editing
- ai
- social-media
- clips
- tiktok
- instagram
- youtube-shorts
- content-creation
- viral
- auto-captioning
---

# 🎬 AI Video Clipper

Transform your long-form videos into viral short clips automatically using AI! This application mimics the core functionality of OpusClip with open-source technologies.

## ✨ Features

### 🤖 AI-Powered Analysis
- **Smart Moment Detection**: Uses advanced NLP to identify the most engaging parts of your video
- **Virality Scoring**: Predicts which clips have the highest potential for social media success
- **Multi-Modal Analysis**: Combines audio features, sentiment analysis, and content understanding

### 📱 Social Media Optimization
- **Auto 9:16 Conversion**: Automatically converts to vertical format perfect for TikTok, Instagram Reels, YouTube Shorts
- **Smart Cropping**: Intelligently crops and scales video content
- **Background Blur**: Creates cinematic background when needed

### 📝 Auto-Captioning
- **High-Accuracy Transcription**: Uses OpenAI Whisper for precise speech-to-text
- **Emoji Enhancement**: Automatically adds relevant emojis to increase engagement
- **Multi-Language Support**: Works with videos in multiple languages

### 🎯 Content Intelligence
- **Hook Detection**: Identifies compelling opening statements and cliffhangers
- **Emotional Analysis**: Detects high-engagement emotional moments
- **Keyword Optimization**: Recognizes viral keywords and phrases

## 🚀 How It Works

1. **Upload**: Drop your video file (MP4, AVI, MOV, MKV, WebM)
2. **Configure**: Set clip duration (15-90 seconds) and number of clips (1-5)
3. **Process**: AI analyzes your video for the best moments
4. **Download**: Get optimized clips ready for social media

## 📊 Virality Scoring Algorithm

The AI evaluates clips based on:
- **Sentiment Analysis**: Positive/negative emotional impact
- **Emotional Intensity**: Surprise, excitement, engagement levels  
- **Viral Keywords**: Money, secrets, transformations, reactions
- **Hook Patterns**: "You won't believe", "This will change", etc.
- **Audio Features**: Tempo, energy, vocal dynamics
- **Optimal Length**: 30-60 second sweet spot for maximum retention

## 🎥 Best Practices

### Ideal Content Types:
- **Podcasts & Interviews**: Great for extracting key insights and memorable quotes
- **Educational Content**: Tutorial highlights and "aha moments"
- **Webinars & Presentations**: Key takeaways and surprising statistics
- **Product Reviews**: Before/after comparisons and reactions
- **Storytelling**: Climactic moments and emotional peaks

### Tips for Best Results:
- ✅ Upload videos with clear, audible speech
- ✅ Longer videos (5+ minutes) provide more clip opportunities  
- ✅ Content with emotional moments scores higher
- ✅ Good lighting and stable footage improve final quality
- ❌ Avoid videos with background music louder than speech
- ❌ Very quiet or poor audio quality may affect transcription

## 🔧 Technical Details

### AI Models Used:
- **Whisper Base**: For speech transcription and timestamp alignment
- **RoBERTa Sentiment**: For emotional analysis and engagement prediction
- **DistilRoBERTa Emotion**: For detecting surprise, excitement, and other high-engagement emotions

### Processing Pipeline:
1. **Audio Extraction**: Separates audio track for analysis
2. **Transcription**: Generates timestamped text with word-level precision
3. **Feature Analysis**: Extracts tempo, energy, and acoustic features
4. **Content Scoring**: Evaluates each segment for viral potential
5. **Clip Generation**: Creates optimized vertical videos with subtitles
6. **Quality Enhancement**: Applies blur backgrounds and text styling

## 📈 Performance Optimizations

- **Efficient Processing**: Uses base models optimized for speed
- **Smart Batching**: Processes multiple segments simultaneously
- **Memory Management**: Automatic cleanup prevents memory leaks
- **Fast Encoding**: Uses ultrafast presets for quick turnaround

## 🎨 Customization Options

- **Clip Duration**: 15-90 seconds (30-60s recommended)
- **Number of Clips**: 1-5 clips per video
- **Subtitle Toggle**: Enable/disable auto-generated captions
- **Emoji Integration**: Automatic contextual emoji insertion

## 🔒 Privacy & Security

- **No Data Storage**: Videos are processed temporarily and automatically deleted
- **Local Processing**: All AI analysis happens on the server without external API calls
- **Secure Upload**: Files are handled securely with temporary storage only

## 🚀 Getting Started

This application is designed to run on Hugging Face Spaces with the free tier. Simply upload your video and let the AI work its magic!

Perfect for:
- 📱 Content creators looking to repurpose long-form content
- 🎬 Marketers creating social media campaigns
- 🎓 Educators extracting key teaching moments
- 💼 Businesses showcasing product highlights
- 🎙️ Podcasters creating promotional clips

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*Built with ❤️ using open-source AI technologies. Transform your content strategy today!*