JS Expert Week 8.0 - 🎥Pre processing videos before uploading in the browser 😏

Pure re-encoding of an mp4-h264 video file with the web APIs as well as in-depth description of how it works.

Record a video in the browser or directly on the File System from a canvas region (2D/WebGL/WebGPU) as MP4, WebM, MKV, MOV, GIF, PNG/JPG Sequence using WebCodecs and Wasm when available.

Browser-based, hardware-accelerated video upload optimization

Get a codec parameter string (like 'avc1.4d002a') from human readable options (like { name: 'Main', level: '4.2' }) and back to a descriptive name ('AVC Main Profile Level 4.2').

WebCodecs Opus Recorder/Media Source Extensions Opus EncodedAudioChunk Player

Video scrubbing with WebCodecs

WebRTC Video Encoder <--> WebCodecs VideoDecoder

websocket player

🎥 Enhance video processing in Node.js with a WebCodecs API polyfill using libav for seamless multimedia handling.

图片素材管理器，支持右键收集以及生成图文和视频

KastorTube - fullstack project that pre-processes MP4 video to WebM on demand using Streams, WebCodecs, Web Workers and Canvas.

🌟 Optimize your Foundry VTT scenes by converting images to WebP and audio to OGG Opus, reducing load times and enhancing performance for all players.

WebCodecsを使った実装でハマるところとその解消法について

A web-based 3D audio visualizer, powered by three.js

Easy Video Trimmer for X.com is a Chrome extension aimed at bringing back the simple video trimming experience previously available on Twitter's official site.

🛠 Enhance your TinyMCE editing experience with a powerful toolbar that boosts productivity through layout and media insertion features.

Local-first video viewer and spatial crop tool. Sibling of RePic.

High-performance asset optimization for FoundryVTT. Convert scene backgrounds to WebP and audio to OGG Opus directly in your browser using multi-threaded WebCodecs for faster load times and less bandwidth.

把 SVG 变成手绘动画视频。导入 SVG → 自动逐笔绘制动画 → 加文字配音 → 导出 MP4。纯前端，零依赖，打开浏览器就能做科普视频。