HTML5 has <video/> element that downloads video from server, decodes it and renders. Often if not always they use hardware accelerated decoding (if available).
Is it possible to access just decoding functionality? The reason is that I'm using custom streaming protocol and so on client side I have encoded video stream that I need to decode and render.
Pure JavaScript implementations of video decoder are not applicable unfortunately as they cannot provide sufficient performance. I'm interested in HVEC or h.264 codecs only.
The solution for this problem is WebRTC. It's possible to integrate an external encoder or to use an embedded one. In browser WebRTC client uses H/W decoding. WebRTC also provides real-time streaming functionality. Compatibility is not bad.