phoboslab/jsmpeg

Health v2 · maintenance only

Flags: no_releases

Adoption not part of the score

6498 stars · 1414 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

JSMpeg is a JavaScript video player that decodes MPEG1 video and MP2 audio entirely in the browser, including an MPEG-TS demuxer, WebGL/Canvas2D renderers, and WebAudio output. It supports loading static .ts files via Ajax and low-latency (~50ms) streaming over WebSockets, all in about 20kb gzipped.

Use cases

• play mpeg1 video in the browser without plugins
• stream low-latency video from a server over websockets
• decode video in javascript with canvas or webgl rendering
• embed a lightweight video player on a webpage
• play .ts video files via ajax with progressive loading
• build a browser-based ip camera viewer with minimal latency

When to choose

• you need to play MPEG1/MP2 content in any modern browser without native codecs
• you need very low latency video streaming over WebSockets
• you want a tiny dependency (~20kb) instead of a full-featured player
• you need to render video frames to a canvas for further processing or screenshots

When to avoid

• you need modern codecs like H.264/H.265 or VP9 - use native HTML5 video instead
• you need high-resolution, high-fps playback beyond MPEG1's efficiency limits
• you need DRM or adaptive bitrate streaming like HLS/DASH
• you need hardware-accelerated decoding for battery efficiency

Facets

library · maturity maintenance

video-processing audio-processing http-client websocket web-development frontend media browser wasm mpeg1-decoder mp2-audio mpeg-ts-demuxer webgl-renderer webaudio low-latency-streaming video-player websockets-streaming video javascript

Member repositories

For agents

markdown · JSON · MCP: product_card(name="phoboslab/jsmpeg")