I’m always interested in testing new codecs, especially when it comes to WebRTC. Some time ago, for instance, I talked about my experiments with AV1 and H.265, AV1-SVC or multiopus. As such, when a new codec called Lyra was announced…
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Blog Archives
Social audio applications with Janus
Audio conversations that span to hundreds, if not thousands, of people have been quite the rage in the past few years. Podcasts are a good example of this success: there have never been so many as these days, and there’s…
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Bridging AudioBridge and SIP with Drachtio
One question we often get is: how do I use the SIP and VideoRoom or AudioBridge plugin together? The short answer is that directly you can’t, because of how Janus is conceived. While Janus is indeed modular, and made of…
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WHIP, WHEP, WHAP!
If you’re confused about all these acronyms, you’re not alone! Those interested in WebRTC and broadcasting have probably heard about WHIP already: WHEP and WHAP maybe not as much And if you’re even more confused about why I chose a…
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Cascading publishers across VideoRoom instances
SFU cascading has been a hot topic for quite some time. There’s different reasons why you may want to cascade an SFU implementation: you may want to scale a room so that multiple servers cooperate with each other to distrubute…
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Multistream is here!
After three years of work (the original pull request was first opened in December 2018) we finally merged the multistream branch in Janus! Considering this was a huge refactoring, we chose a special day for the occasion, that is the…
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WISH, WHIP and Janus: Part II
Sometime around last year, I first introduced WHIP and how it could be used with Janus in a blog post right here. At the time, we had quite some fun experimenting with this new signalling approach our friends at CoSMo…
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Tinkering with AV1-SVC support in Janus
About a year or so ago, we talked about how we added support for new codecs to Janus, namely AV1 and H.265, and why that was an interesting foundation for more exciting things to come. AV1 in particular was a…
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Audio redundancy in Janus via RED
A few months ago, I read a very interesting blog post by Philipp Hancke on how Chrome had added experimental support for audio redundancy via RED, and how it actually helped improve audio quality a lot in lossy networks. That…
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WebRTC + NDI: Part II
You may remember that a couple of months ago I wrote a blog post on a cool experiment I had worked on: a “simple” way to bridge the gap between the WebRTC and NDI worlds, something that had apparently been…
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