HTML5-WebRTC

WebRTC is an open source project to enable realtime communication of audio, video and data in Web and native apps.

WebRTC是“網路即時通信”（Web Real Time Communication）的縮寫，它主要用來讓瀏覽器即時獲取和交換視頻、音訊和資料。

WebRTC共分三個API。

·         MediaStream（getUserMedia）

·         RTCPeerConnection

·         RTCDataChannel

getUserMedia主要用於獲取視頻和音訊資訊，後兩個API用於瀏覽器之間的資料交換。

https://webrtc.github.io/samples/src/content/getusermedia/gum/

Demo:

https://simpl.info/getusermedia/

Display the video stream from getUserMedia() in a video element.
The MediaStream object stream passed to the getUserMedia() callback is in global scope, so you can inspect it from the console.