JSMpeg is a Video Player written in JavaScript. It consists of an MPEG-TS demuxer, MPEG1 video & MP2 audio decoders, WebGL & Canvas2D renderers and WebAudio sound output. JSMpeg can load static videos via Ajax and allows low latency streaming (~50ms) via WebSockets.
JSMpeg can decode 720p Video at 30fps on an iPhone 5S, works in any modern browser (Chrome, Firefox, Safari, Edge) and comes in at just 20kb gzipped.