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Updated readme with proper configs
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README.md
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#
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> Detect AI-generated deepfakes in videos using computer vision and audio analysis
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[](https://fastapi.tiangolo.com)
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##
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- **AI-Powered Fusion**: Uses LLM to generate human-readable reports
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- **Interval Breakdown**: Shows exactly which parts of the video are suspicious
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- **REST API**: Easy integration with any frontend or application
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- Confidence scoring per frame
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- **Audio Analysis**
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- Voice synthesis detection
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- Spectrogram analysis for audio artifacts
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- Frequency pattern recognition
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- Audio splicing detection
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- **AI-Powered Reporting**
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- LLM-based evidence fusion (Google Gemini)
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- Natural language explanation of findings
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- Verdict with confidence percentage
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- Timestamped suspicious intervals
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### Processing Pipeline
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```
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Video Input
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↓
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┌───────────────────┐
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│ Media Extraction │ → Extract frames (5 per interval)
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│ │ → Extract audio chunks
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└────────┬──────────┘
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│
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├──────────────────────┬──────────────────────┐
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▼ ▼ ▼
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┌─────────────────┐ ┌─────────────────┐ ┌────────────────┐
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│ Video Analysis │ │ Audio Analysis │ │ Timeline Gen │
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│ • Face detect │ │ • Spectrogram │ │ • 2s intervals │
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│ • Region scan │ │ • Voice synth │ │ • Metadata │
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│ • Fake score │ │ • Artifacts │ │ │
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└────────┬────────┘ └────────┬────────┘ └────────┬───────┘
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│ │ │
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└──────────────┬──────────────┬─────────────┘
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▼ ▼
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┌──────────────────────────┐
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│ LLM Fusion Engine │
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│ • Combine evidence │
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│ • Generate verdict │
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│ • Natural language report│
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└────────────┬─────────────┘
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▼
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Final Report
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(JSON Response)
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```
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## Demo
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### Live Demo
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**API**: [https://deepdefend-api.hf.space](https://deepdefend-api.hf.space)
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**Docs**: [https://deepdefend-api.hf.space/docs](https://deepdefend-api.hf.space/docs)
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### Example Analysis
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<details>
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<summary>Click to see sample output</summary>
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```json
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{
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"verdict": "DEEPFAKE",
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"confidence": 87.5,
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"overall_scores": {
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"overall_video_score": 0.823,
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"overall_audio_score": 0.756,
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"overall_combined_score": 0.789
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},
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"detailed_analysis": "This video shows strong indicators of deepfake manipulation...",
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"suspicious_intervals": [
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{
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"interval": "4.0-6.0",
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"video_score": 0.891,
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"audio_score": 0.834,
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"video_regions": ["eyes", "mouth"],
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"audio_regions": ["voice_synthesis_artifacts"]
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}
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],
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"total_intervals_analyzed": 15,
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"video_info": {
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"duration": 12.498711111111112,
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"fps": 29.923085402583734,
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"total_frames": 374,
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"file_size_mb": 31.36
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},
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"analysis_id": "4cd98ea5-8c14-4cae-8da4-689345b0aabc",
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"timestamp": "2025-10-10T23:34:35.724916"
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}
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```
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</details>
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## Installation
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### Prerequisites
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- Python 3.10 or higher
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- FFmpeg installed on your system
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- Google Gemini API key
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### Local Setup
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1. **Clone the repository**
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```bash
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git clone https://github.com/yourusername/deepdefend.git
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```
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2. **Create virtual environment**
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```bash
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python -m venv venv
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# On Linux/Mac
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source venv/bin/activate
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# On Windows
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venv\Scripts\activate
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```
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3. **Install dependencies**
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```bash
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pip install -r requirements.txt
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```
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4. **Download ML models**
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```bash
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python models/download_model.py
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```
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*This will download ~2GB of models from Hugging Face*
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5. **Configure environment**
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```bash
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cp .env.example .env
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# Edit .env and add your GOOGLE_API_KEY
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```
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6. **Run the server**
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```bash
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uvicorn main:app --reload
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```
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The API will be available at `http://127.0.0.1:8000`
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### Docker Setup
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```bash
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# Build image
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docker build -t deepdefend .
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# Run container
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docker run -p 8000:8000 -e GOOGLE_API_KEY=your_key deepdefend
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```
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## Tech Stack
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### Backend
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- **Framework**: FastAPI 0.109.0
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- **Server**: Uvicorn
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- **ML Framework**: PyTorch 2.3.1
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- **Transformers**: Hugging Face Transformers 4.36.2
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### ML Models
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- **Video Detection**: [dima806/deepfake_vs_real_image_detection](https://huggingface.co/dima806/deepfake_vs_real_image_detection)
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- **Audio Detection**: [mo-thecreator/Deepfake-audio-detection](https://huggingface.co/mo-thecreator/Deepfake-audio-detection)
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- **LLM Fusion**: Google Gemini 2.5 Flash
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### Processing
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- **Computer Vision**: OpenCV, Pillow
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- **Audio Processing**: Librosa, SoundFile
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- **Video Processing**: FFmpeg
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### Deployment
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- **Container**: Docker
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- **Platforms**: Hugging Face Spaces
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## Project Structure
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```
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deepdefend/
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│
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│── extraction/
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│ ├── media_extractor.py # Frame & audio extraction
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│ └── timeline_generator.py # Timeline creation
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│
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│── analysis/
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│ ├── video_analyser.py # Video deepfake detection
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│ ├── audio_analyser.py # Audio deepfake detection
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│ ├── llm_analyser.py # LLM-based fusion
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│ └── prompt.py # LLM prompts
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│
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│── models/
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│ ├── download_model.py # Model downloader
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│ ├── load_models.py # Model loader
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│ ├── video_model/ # (Downloaded)
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│ └── audio_model/ # (Downloaded)
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│
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│── main.py # FastAPI application
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│── pipeline.py # Main detection pipeline
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│── requirements.txt # Python dependencies
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│── Dockerfile # Container configuration
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├── .gitignore
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└── README.md
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```
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# In your local folder, update README.md
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@"
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---
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title: DeepDefend API
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emoji: 🛡️
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colorFrom: red
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colorTo: blue
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sdk: docker
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app_port: 7860
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pinned: false
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---
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# 🛡️ DeepDefend API
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Advanced Multi-Modal Deepfake Detection System
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## API Endpoints
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- POST /api/analyze - Analyze video for deepfakes
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- GET /api/health - Health check
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- GET /api/stats - Statistics
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- GET /docs - Interactive API documentation
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## Usage
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Upload a video file to analyze:
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\`\`\`bash
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curl -X POST "https://nishchandel-deepdefend-api.hf.space/api/analyze" \\
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-F "file=@video.mp4"
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\`\`\`
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Visit /docs for interactive documentation.
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"@ | Out-File -FilePath README.md -Encoding utf8
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# Commit and push
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git add README.md
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git commit -m "Fix README configuration"
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git push space main
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