Google Cast SDK - Google Cast lets users stream video, audio and applications onto a screen.
Ant Media Server - Scalable, Ultra Low Latency & Adaptive WebRTC Streaming Ant Media Server provides Scalable Ultra-low latency (0.5 seconds) Adaptive Live Streaming with WebRTC. It supports RTMP, RTSP, Zixi, WebRTC, Adaptive Bitrate, HLS and MP4 recording.
JW Player - JW Player is an embeddable media player.
Red5 - Red5 is an open source Flash media server for live streaming solutions of all kinds.
MediaElement.js - MediaElement.js provides HTML5 audio and video players in pure HTML and CSS.
Nimble Streamer - Light-weight media server that is freemium, pay for control panel if you need it.