simulcast

All posts tagged simulcast

Slack is an über popular and fast growing communications tool that has a ton of integrations with various WebRTC services. Slack acquired a WebRTC company a year ago and launched its own audio conferencing service earlier this year which we analyzed here and here. Earlier this week they launched video. Does this work the same? Are there any tricks we can learn from their implementation? Long time WebRTC expert and webrtcHacks guest author Gustavo Garica takes a deeper dive into Slack’s new video conferencing feature below to see what’s going on under the hood.

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Dealing with multi-party video infrastructure can be pretty daunting. The good news is the technology, products, and standards to enable economical multiparty video in WebRTC has matured quite a bit in the past few years. One of the key underlying technologies enabling some of this change is called simulcast. Simulcast has been an occasional sub-topic here at webrtcHacks in the past and it is time we gave it more dedicated attention.

To do that we asked Oscar Divorra Escoda, Tokbox’s Senior Media Scientist and Media Cloud Engineering Lead to walk us through it. Tokbox was one of the first to market with a SFU and Oscar shares some of his learnings below.

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Update: Philipp continues to reverse engineer Hangouts using chrome://webrtc-internals. Please see the bottom section for new analysis he just put together in the past couple of days based on Chrome 38.

As initiators and major drivers of WebRTC, Google was often given a hard time for not supporting WebRTC in its core collaboration product. This recently changed when WebRTC support for Hangouts was added with Chrome 36.

So obviously we wanted to check out how this worked. We also were curious to see how a non-googler could make some practical use of chrome://webrtc-internals. Soon thereafter I came across a message from Philipp Hancke (aka Hornsby Cornflower) saying he had already starting looking at the new WebRTC hangouts with webrtc-internals. Fortunately I was able to convince him to share his findings and thorough analysis.

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