FFmpeg WebAssembly Assistant

About

This skill provides comprehensive guidance for integrating FFmpeg into browser-based environments using WebAssembly, enabling powerful media processing without server-side dependencies. It simplifies complex technical requirements like SharedArrayBuffer implementation, COOP/COEP header configuration for multi-threading, and framework-specific setups for React, Vue, and Next.js. Whether you are building browser-based video editors, media extraction tools, or thumbnail generators, this skill offers production-ready recipes, performance optimization techniques, and troubleshooting for edge environments like Cloudflare Workers.

Key Features

• Memory management and IndexedDB core caching strategies
• Multi-threaded core configuration (ffmpeg-core-mt) for performance
• Cross-Origin Isolation and security header implementation
• End-to-end ffmpeg.wasm setup and lifecycle management
• Framework-specific integration patterns for Vite, Next.js, and React
• 7 GitHub stars

Use Cases

• Building client-side video transcoding tools to reduce server infrastructure costs
• Implementing automated frame extraction and thumbnail generation in web apps
• Developing browser-based video editing features like trimming, scaling, and watermarking