daymade

Video Comparer — Development skill for Claude Code

Development community Intermediate

Compare video files and content.

How to install Video Comparer

Installs to ~/.claude/skills/video-comparer/

Terminal

git clone --depth 1 https://github.com/daymade/claude-code-skills /tmp/claude-code-skills \
  && mkdir -p ~/.claude/skills \
  && cp -r /tmp/claude-code-skills/video-comparer ~/.claude/skills/video-comparer

Clones the whole repository, because a skill folder can carry scripts and resources beside its SKILL.md.

What Video Comparer does

A professional video comparison tool that analyzes compression quality and generates interactive HTML reports. Compare original vs compressed videos with detailed metrics (PSNR, SSIM) and frame-by-frame visual comparisons.

Alternatives in Development

Sora — Generate, remix, and manage short video clips via OpenAI's Sora API 14.6k ★
Haft — Engineering decisions engine that know when they're stale 1.4k ★
Setup Video Vision — Interactive setup wizard for claude-video-vision — configure backend, whisper, frames, and verify dependencies 1.3k ★

Repository README

This is the README for daymade/claude-code-skills, shared by 5 entries in this directory. It describes the repository, not this entry specifically.

Video Comparer

Features

🎯 Video Analysis

Metadata Extraction: Codec, resolution, frame rate, bitrate, duration, file size
Quality Metrics: PSNR (Peak Signal-to-Noise Ratio) and SSIM (Structural Similarity Index)
Compression Analysis: Size and bitrate reduction percentages

🖼️ Interactive Comparison

Three Viewing Modes:
- Slider Mode: Interactive before/after slider using img-comparison-slider
- Side-by-Side Mode: Simultaneous display of both frames
- Grid Mode: Compact 2-column layout
Zoom Controls: 50%-200% zoom with real image dimension scaling
Responsive Design: Works on desktop, tablet, and mobile

🔒 Security & Reliability

Path Validation: Prevents directory traversal attacks
Command Injection Prevention: No shell=True in subprocess calls
Resource Limits: File size and timeout restrictions
Comprehensive Error Handling: User-friendly error messages

Quick Start

Prerequisites

Python 3.8+ (for type hints and modern features)
FFmpeg (required for video analysis)

# macOS
brew install ffmpeg

# Ubuntu/Debian
sudo apt install ffmpeg

# Windows
# Download from https://ffmpeg.org/download.html

Basic Usage

# Navigate to the skill directory
cd /path/to/video-comparer

# Compare two videos
python3 scripts/compare.py original.mp4 compressed.mp4

# Open the generated report
open comparison.html  # macOS
# or
xdg-open comparison.html  # Linux
# or
start comparison.html  # Windows

Command Line Options

python3 scripts/compare.py   [options]

Arguments:
  original      Path to original video file
  compressed    Path to compressed video file

Options:

...