video

All posts tagged video

Gustavo Garcia Bernardo

Gustavo Garcia Bernardo

WebRTC and its peer-to-peer capabilities are great for one-to-one communications. However, when I discuss with customers use cases and services that go beyond one-to-one, namely one-to-many or many-to-many, the question arises: “OK, but what architecture shall I use for this?”. Some service providers want to reuse the multicast support they have in their networks (we are having fun doing some experiments with this), some are exploring simulcast-based solutions, others are considering centralised solutions like MCUs/mixers, and a bunch of them are simply willing to place the burden on the endpoint by using some variation of a mesh-based topology.   The folks at TokBox (a Telefónica Digital company) have great experience with multiparty conferencing solutions.  I thought it would be great to have my friend Gustavo Garcia Bernardo (Cloud Architect at TokBox) to share here his take on the topic.

At TokBox, Gustavo is responsible for architecture, design, and development of cloud components. This includes Mantis, the cloud-scaling infrastructure for the OpenTok, which uses the WebRTC platform. Before joining TokBox, Gustavo spent more than 10 years building VoIP products at Telefónica and driving early adoption of WebRTC in telco products. In fact, I’ve known Gustavo for 8 years now and the first time I met him it was preparing a proposal for a European Commission-funded research project on P2PSIP. Since then we’ve been collaborating in the IETF doing some work in the context of P2PSIP, ALTO and SIP related activities. A couple of years ago, while I was working with Acme Packet (now Oracle), we worked together designing and launching Telefonica’s Digital TuMe and TuGo.  Lately we have both shifted our focus towards WebRTC.

...

Continue Reading

Tweet about this on TwitterShare on FacebookShare on LinkedInShare on Google+Email this to someone

As detailed in previous posts on webrtcHacks, the Internet Engineering Task Force (IETF) has worked for the past few years to standardize the “on-the-wire” protocols that make up the WebRTC engine. It is coming up on 3 months since IETF 88 in Vancouver, where the IETF was to have settled the matter of a mandatory-to-implement (MTI) video codec. The process resulted in no consensus, and the task of finalizing WebRTC 1.0 drags on with MTI video codec(s) in question.  A recent straw poll among IETF participants shows how divided the issue remains.

...

Continue Reading

Tweet about this on TwitterShare on FacebookShare on LinkedInShare on Google+Email this to someone

In the WebRTC standardisation post I mentioned that one of the controversial discussions in the IETF context was the mandatory to implement (MTI) video codec battle for WebRTC. While there are some technical arguments on the topic (i.e this  VP8 vs H.264 – subjective evaluation and this performance comparisons discussion), there is no dispute both are high quality and efficient video codecs. The issue here is all about IPR and licensing as described in this interesting and ongoing discussion: “VP8 vs H.264 – the core issue“.

...

Continue Reading

Tweet about this on TwitterShare on FacebookShare on LinkedInShare on Google+Email this to someone