VidTrans22 Annual Conference & Exposition
June 14-16, 2022
Marina del Rey, California
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Synopses of Presentations (alphabetical by presenter)
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Cloud Production, Transport and Monitoring via libRIST plus WebRTC
Sergio Ammirata Ph.D. – SipRadius
One of the big three U.S. networks deploys many encoders in an Amazon Outpost, AWS' on-premises platform. Located on the network’s premises, Outpost integrates with EC2. Our company has a presence at multiple points of the network’s architecture, and this talk concentrates on two pieces. First, we use libRIST for error corrected transport of a large number of streams. We deploy that in the Outpost through the use of our own linux flavor OS images. They present a web based GUI for managing the libRIST transport peerings. libRIST is FOSS, though our GUI is not, but since the GUI builds up and executes fancy libRIST command lines, attendees might be interested in a "fifty cent tour" of it. The second piece is our WebRTC media server. Once RIST is in the cloud, it's an obvious step to "copy" the udp or rtp streams and make them available for near real-time monitoring outside the cloud. We'll discuss how we've implemented secure browser viewing using WebRTC. In line with this event's theme of "Content in Motion", our point is that just because it's in motion doesn't mean you can't get a view into it!
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NMOS – What is it and Why should I care?
Jed Deame - Nextera Video
Synopsis: This session will provide an introduction to the Networked Media Open Specification (NMOS) along with a plain english description of the functionality provided. Applications for all of the different "IS" numbers will be presented along with workflow examples. In addition, the latest developments enabling compressed workflows and ProAV applications will be reviewed.
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JPEG XS in RTP Details - TR's, ST's, RFC's & ISO/IEC's
Thomas Edwards - AWS
JPEG XS is a very useful codec for low latency transport of high quality video, especially between ground and cloud. Understanding how JPEG XS is encapsulated in RTP for interoperable transmission depends on a combination of standards and specifications, including SMPTE ST 2110-22, ISO/IEC 21122-3, IETF RFC 9134, and VSF TR-08. This talk will be a deep dive into how all these documents work together to define JPEG XS in RTP.
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Dynamic Media System Architecture - Creating truly
dynamic media facilities
Brad Gilmer – Gilmer & Associates
While the transition to IP has resulted in products and systems that have met some user requirements for more dynamic, flexible facilities, a more IT-centric approach will be necessary in the future.
Attendees will be introduced to a high-level overview of the Dynamic Media System Architecture, built squarely on current best practices in the IT domain. They will learn about key functionality in the Media Service Provisioning layer, and about how facilities may be built "just-in-time" from a service layer using the Media System Constructor.
It is hoped that an interactive discussion at the end of this presentation may outline areas of activity for the VSF.
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Best Practices in Securing Critical Timing for Media Broadcast Timing Services against Cyber Threats
Luis Gonzalez – ADVA
Professional broadcast solutions depend on precise timing for processing video streams accurately and efficiently. With the transition to IP transport, application specific timing solutions are being replaced by PTP technology. A combination of satellite-delivered and network-delivered timing is frequently applied to meet accuracy requirements but also to ease implementation. Recent concerns about availability due to vulnerability of GNSS/GPS systems create a need to revisit presently applied best practices.
As a result, GNSS assurance in combination with robust delivery methods need to be implemented to protect the crucial timing supply from external factors. Solutions such as Cesium atomic clocks and better holdover oscillators together with intelligent fault tolerant synchronization management system, can be used for resilient timing assurance against increasing disruption events from cyberthreats. In our presentation, we will outline presently applied best practices, explain the increasing threat from GNSS vulnerability and highlight efficient means to mitigate the risk.
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SDN Orchestration across Single Converged Network for Uncompressed and Compressed Media Flows
Thomas Gunkel – Skyline Communications
This presentation discusses a project which was rolled out in Italy to orchestrate a converged IP video and audio contribution and distribution network across a multi-site and multi-vendor network architecture. The solution includes a network manager (full SDN control) which manages compressed and uncompressed ST2110 and ST2022-6 signals, across a hybrid Arista and Cisco capacity-constraint network. The controller calculates and configures the most efficient path in the network for each media flow to ensure that no link can be oversubscribed at any point in time. Moreover, this not only allows ad-hoc switching, but also comes with the possibility to reserve bandwidth and resources for different signal types with different bandwidth requirements in the future.
Another part of the presentation will cover the automated and secure onboarding of the inventory, e.g. scanning the network for new devices, detecting switches and media edge devices plus the physical connectivity combined with firmware checks and initial configurations loads for each device.
The last part will focus on operations: the system can be controlled from different locations and provides comprehensive user interface.
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CMAF for Live Media Ingest – Moving the Headend Beyond MPEG-2 TS
Khaled Jerbi – Ateme
CMAF marked a turning point for OTT video delivery, its modern architecture based on ISOBMFF improving versatility and interoperability. CMAF is deployed at scale as B2C packaging format for end-users and players, but the live media ingest protocol is now using CMAF for B2B deliveries as well. This standard allows the video exchange between any video processing entities such as encoders, packagers, and origin. This exchange is based on synchronized flows of data and metadata fragments that would carry all required information from the original stream. Significant interest is raising around this application as video broadcasters are looking to replace the classic MPEG-2 TS format for their first mile delivery.
In this presentation we expose the live media ingest protocol and its key features. We also detail the benefits of using this technology compared to other existing formats. Then, we present the CMAF evolution thanks to the ingest protocol to handle B2B video transmission specificities. Finally, we show concrete implementation architecture of communication between an encoder and a smart packager, including metadata aspects to support ad-insertion and black-out workflows.
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5G for onboard racing car video
Kieran Kunhya – Open Broadcast Systems
Traditionally onboard racing car video has been delivered using low-latency RF links that are only affordable by the highest-end motor racing leagues. But there is still high demand for onboard video from both broadcasters and arguably more importantly the racing teams themselves to improve race performance. The lower latencies in 5G mean comparable latencies to RF can be achieved. This presentation will look at real world tests of onboard video now that well-known race tracks in Europe have 5G coverage.
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The Incredible Shrinking Processor
Renaud Lavoie - Riedel
Miniaturization in 2022 is now synonymous to adding more and more features to a smaller and smaller package. We can think about smart watches, cellphones, etc. In the early days of electronics, the goal was to add transistors in smaller and smaller devices following the rule of Moore’s law. This enabled manufacturers to add more and more features in smaller and smaller packages. Riedel followed the same principle for SFPs, bringing to the market a more flexible (multiples of 2 encapsulators and de-encapsulators), more cost-effective and greener solution. With the market encouraged to do “green” productions in the coming year, these miniaturized devices may be the first small, features-rich products, but they will not be the last. This presentation will cover the power of small and the challenges of such miniaturization.
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Managing Mono Audio in an ST 2110 / NMOS Environment
John Mailhot - Imagine Communications
ST 2110 describes a system with video and audio streams, and in most systems the audio streams contain a multiplex of channels – 2, 4, 8, or even 16 channels per stream. In television production environments, there is often the requirement to route or manage audio at the mono-track granularity. By leveraging AMWA NMOS and the IS-08 audio channel mapping extension, a control system can implement a mono-track granularity of control even when using multi-channel streams. This talk describes the standards-based methodologies for doing this often-required task.
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Towards Zero Trust in Broadcast Production
John Robert Naylor – Ross Video
With Zero Trust Network Architectures (ZTA) rapidly gaining currency as best practice across many industry verticals, it's interesting to consider applying Zero Trust Tenets to the broadcast production use case.
Our industry uses many (clear text) control protocols that require rigorous frame-accuracy. And it uses equipment typically on 7-year capital schedules that was not designed with ZTA as a requirement. Both of which present significant technical challenges to adopting it.
This paper reports out on a proof of concept developed by Ross Video to experiment with ZTA with the objective of detailing these challenges and their potential workarounds.
The Proof of Concept used OIDC for authentication and OAuth2 for access control together with TLS network transports to provide secure communications. It includes research into the impact of these on the performance characteristics of legacy equipment including increased control protocol latencies. It also covers ease-of-use and workflow considerations for fast paced production operations. These findings will be presented as a live demo together with some of the emergent questions that deserve further investigation.
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RIST Relay Overview
Ciro Noronha, Ph.D. – Cobalt Digital
One challenge in using the RIST protocol to establish communication over the Internet is that the server endpoint must accept a connection from the client endpoint. No special configuration is needed to support a client behind a firewall – it simply accesses a resource out in the Internet. However, this is not the case for the server – it needs to have either a public IP address, or a firewall configured to forward the packets. In some cases, this is either difficult or impossible for administrative reasons.
The RIST Activity Group has completed the technical work on the upcoming TR-06-4 Part 3. The objective of this work is to create a common Specification for a relay device, responsible for facilitating the communication between two RIST endpoints behind firewalls that, for administrative reasons, cannot be configured to allow direct communication. This talk provides an overview of the RIST Relay functionality and protocols, including the support for symmetric and asymmetric firewalls, traffic replication, and protocol conversion, among other functions.
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Use of 5G for live IP production
Andrew Rayner – Nevion
A key focus area for IP production deployment in 2022 is the federation of multiple facilities to achieve true distributed production.
To enable this effective collaboration, the sharing of resources needs to be done effectively in the control plane as well as the data plane.
Using a recent real-world federation deployment case study and the (hopefully) recently published TR-09-02, the presentation will explore what is now possible and what may still be needed to meet the flexibility and security requirements of customers.
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Enhancing SRT with RIST Protocol
Adi Rozenberg – AlvaLinks
This presentation will focus on how the use of the RIST protocol can enhance and improve some missing capabilities of the SRT protocol.
The SRT protocol is gaining more and more users, but it is missing some key capabilities that are available in RIST TR-06-01/2.
The presentation will present use cases where the coupling of RIST and SRT will provide some missing functionality:
Multi Link
Load share
differed protection
Null packet deletion
Authentication and more
The Presentation will also relate to the relevant use case being presented at the Vidtrans Demo.
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Network Considerations for the Future of AV over IP
Greg Schlechter – Intel
With the future of AV now clearly riding on standard networks and IP, what are the future technologies and capabilities in these networks that we should take advantage of in this ecosystem? How do we scale from embedded edge networks all the way to data center and cloud networks? This session will look at advancements in wireless networking, time sensitive/deterministic networking, and single pair wired mediums that will allow AV over IP to scale to new applications and use cases, as well as considerations for scaling from the "physics" of AV to the cloud and from wired to wireless in how we architect protocols.
