Video: RIST Unfiltered – Q&A Session

RIST is a protocol which allows for reliable streaming over lossy networks like the internet. Whilst many people know that much, they may not know more and may have questions. Today’s video aims to answer the most common questions. For a technical presentation of RIST, look no further than this talk and this article

Kieran Kunhya deals out the questions to the panel from the RIST Forum, RIST members and AWS. Asking:
Does RIST need 3rd party equipment?
Is there an open-source implementation of RIST?
Whether there are any RIST learning courses?
as well as why companies should use RIST over SRT.
RIST, we hear is based on RTP which is a very widely deployed technology for real-time media transport and is widely used for SMPTE 2022-2 and 6 streams, SMPTE 2110, AES67 and other audio protocols. So not only is it proven, but it’s also based on RFCs along with much of RIST. SRT, the panel says, is based on the UDT file transfer protocol which is not an RFC and wasn’t designed for live media transport although SRT does perform very well for live media.

“Why are there so many competitors in RIST?” is another common question which is answered by talking about the need for interoperability. Fostering widespread interoperability will grow the market for these products much more than it would with many smaller protocols. “What new traction is RIST getting?” is answered by David Griggs from AWS who says they are committed to the protocol and find that customers like the openness of the protocol and are thus willing to invest their time in creating workflows based on it. Adi Rozenberg lists many examples of customers who are using the technology today. You can hear David Griggs explain RIST from his perspective in this talk.

Other questions handled are the licence that RIST is available under and the open-source implementations, the latency involved in using RIST and whether it can carry NDI. Sergio explains that NDI is a TCP-based protocol so you can transmit it by extracting UDP out of it, using multicast or using a VizRT-tool for extracting the media without recompressing. Finally, the panel looks at how to join the RIST Activity Group in the VSF and the RIST Forum. They talk about the origin of RIST being in an open request to the industry from ESPN and what is coming in the upcoming Advanced Profile.

Watch now!
Speakers

Rick Ackermans Rick Ackermans
RIST AG Chair,
Director of RF & Transmission Engineering, CBS Television
David Griggs David Griggs
Senior Product Manager, Media Services,
AWS Elemental
Sergio Ammirata Sergio Ammirata
RIST AG Member,
Chief Science Officer, SipRadius
Adi Rozenberg Adi Rozenberg
RIST Forum Director
AG Member, Co-Founder & CTO, VideoFlow
Ciro Noronha Ciro Noronha
RIST Forum President and AG Member
EVP of Engineering, Cobalt Digital
Paul Atwell Paul Atwell
RIST Forum Director,
President, Media Transport Solutions
Wes Simpson Wes Simpson
RIST AG Co-Chair,
President & Founder, LearnIPvideo.com
Kieran Kunhya Kieran Kunhya
RIST Forum Director
Founder & CEO, Open Broadcast Systems

Video: RIST in the Cloud

Cloud workflows are starting to become an integral part of broadcasters’ live production. However, the quality of video is often not sufficient for high-end broadcast applications where cloud infrastructure providers such as Google, Oracle or AWS are accessed through the public Internet or leased lines.

A number of protocols based on ARQ (Adaptive Repeat reQuest) retransmission technology have been created (including SRT, Zixi, VideoFlow and RIST) to solve the challenge of moving professional media over the Internet which is fraught with dropped packets and unwanted delays. Protocols such as a SRT and RIST enable broadcast-grade video delivery at a much lower cost than fibre or satellite links.

The RIST (Reliable Internet Streaming Transport) protocol has been created as an open alternative to commercial options such as Zixi. This protocol is a merging of technologies from around the industry built upon current standards in IETF RFCs, providing an open, interoperable and technically robust solution for low-latency live video over unmanaged networks.

In this presentation David Griggs from Amazon Web Services (AWS) talks about how the RIST protocol with cloud technology is transforming broadcast content distribution. He explains that delivery of live content is essential for the broadcasters and they look for a way to deliver this content without using expensive private fibre optics or satellite links. With unmanaged networks you can get content from one side of the world to the other with very little investment in time and infrastructure, but it is only possible with protocols based on ARQ like RIST.

Next, David discusses the major advantages of cloud technology, being dynamic and flexible. Historically dimensioning the entire production environment for peak utilisation was financially challenging. Now it is possible to dimension it for average use, while leveraging cloud resources for peak usage, providing a more elastic cost model. Moreover, the cloud is a good place to innovate and to experiment because the barrier to entry in terms of cost is low. It encourages both customers and vendors to experiment and to be innovative and ultimately build more compelling and better solutions.

David believes that open and interoperable QoS protocols like RIST will be instrumental in building complex distribution networks in the cloud. He hopes that AWS by working together with Net Insight, Zixi and Cobalt Digital can start to build innovative and interoperable cloud solutions for live sports.

Watch now!

Speaker

David Griggs
Senior Product Manager, Media Services
AWS Elemental