NVR Analyzer

A comprehensive tool for analyzing Network Video Recorder (NVR) devices and their connected cameras.

Features

• Multi-brand support: Automatically detects or manually specifies NVR brand (Dahua, Hikvision, ONVIF)
• Multiple information gathering methods:
  • Direct API calls to NVR configuration endpoints
  • ONVIF protocol for standardized access
  • RTSP stream analysis for reliable fallback
• Camera screenshot capture: Saves a snapshot from each working camera
• Overlay text extraction: Uses AI to extract camera names from video overlays
• Accurate bitrate calculation: Captures short video segments to calculate actual bitrate
• Comprehensive reporting: Generates CSV reports and detailed logs
• Multi-NVR scanning: Can scan multiple NVRs in a single run

Quick Start

# Make the script executable
chmod +x nvr-analyzer.py

# Install dependencies
./nvr-analyzer.py --install-deps

# Run the analyzer
./nvr-analyzer.py --ips 192.168.1.100 --username admin --password your_password

Documentation

For detailed documentation, see nvr-analyzer.md.

Requirements

• Python 3.6 or higher
• FFmpeg (required for stream analysis and screenshot capture)
• Python libraries:
  • requests
  • pillow (optional, for image resolution detection)

License

This tool is provided as-is with no warranty. Use at your own risk.