There are two ways to stream video online, either pushing from the server to the device like WebRTC, MPEG transport streams and similar technologies, or allowing the receiving device to request chunks of the stream which is how the majority of internet streaming is done – using HLS and similar formats.
Chunk-based streaming is generally seen as more scalable of these two methods but suffers extra latency due to buffering several chunks each of which can represent between 1 and, typically, 10 seconds of video.
CMAF is one technology here to change that by allowing players to buffer less video. How does this achieve this? An, perhaps more important, can it really cut costs? Iraj Sodagar from NexTreams is here to explain how in this talk from Streaming Media West, 2018.
A brief history of CMAF (Common Media Format)
The core technologies (ISO BMFF, Codecs, captions etc.)
Date: Thursday February 28th 2019, 10am PT / 1PM ET / 18:00 GMT
Streaming continues to grow, in amount streamed, in people consuming it and in importance within this and other industries. One things which has always been an enabler yet made streaming harder to deploy is its rapid evolution. Whilst this has been a boon for smaller, nimbler companies – both content producers and service providers – the streaming has now arrived at most companies in one way or another and this breadth of use-cases has kept streaming tech moving forward and showing no signs of abatement.
Some aspects are changing. For instance we are seeing the first patent-free MPEG standard proposals (EVC, which has basic patent-free functionality and a better performing patent-controlled profile) on the heels of AV1. We’re seeing low-latency efforts such as CMAF taking hold as an alternative to WebRTC. With CMAF being much closer to the ever popular HLS, this may well beat out WebRTC in deployments at the cost of a slightly higher, but much improved latency.
To bring all of this in to focus for 2019, Jason Thibeault from the Streaming Video Alliance is bringing together a panel of experts to look at the coming trends and to give us an idea of what to look out for, and how to make sense, of 2019’s year of video delivery.
Nobody wants to find out about a big play or major news event on Twitter before they see it in their video stream, so reducing latency is crucial for OTT services’ success. Likewise, ultra-low latency is crucial for interactive streaming applications. Depending on your use case, a few seconds of latency might be fine, or you might need to try to hit that sub-second target.
Learn which technologies and solutions are best for your business, and make sure your viewers get their video on time, every time. In this webinar, you’ll learn the following:
Why it’s important to evaluate and improve latency end-to-end, including software and services, encoder, platform, and player
How to decide which technology and solution is best for your use case (e.g. CMAF, HLS/DASH, WebRTC, Websocket)
How chunked CMAF offers a standards-based approach that allows latency to be decoupled from segment duration
How chunked CMAF leverages existing CDN HTTP capacity to provide low-latency solutions at high scale
How WebRTC can be used to deliver live video sub-second latency at scale, and provide rich, interactive experiences for live streaming applications
How a single misconfigured component can undo any other effort to achieve low latency
How integrated solutions create new business opportunities for low latency interactive use cases
How to achieve low latency across all platforms and devices
VP of Product Strategy,
Moderator: Eric Schumacher-Rasmussen
A step by walk through fuboTV’s FIFA World Cup streaming system. Delivering to FOX, Billy Romero and Thomas Symborski explain the challenges and the successes streaming from Russia to the US in UHD HDR.
This talk from Demuxed 2018 shows examples of how social media can help get reports back of problems and the real life usage stats. Billy and Thomas explain their system from commissioning through vendor choice and all the way to CMAF delivery.
A refreshingly transparent talk which is well worth watching!
Will Law from Akamai proves his chunky credentials by telling us how to achive very low-latency streaming in his talk at Demuxed 2018.
In the jungle of solutions for low latency live streaming, there are many current options ranging from WebRTC, to proprietary UDP protocols to standard segmented media with ever-shortening segments. This session highlights one of these – chunked-encoded chunked-transferred CMAF – as a optimal and practical confluence of both reach and performance. On the technical side we’ll investigate the underlying technology, the latency regimes possible, compatibility with legacy players, cachability on delivery networks and player behavior requirements. Including live demonstrations of several streams on a production network. This talks brings a standards perspective from DVB and DASH as well as CDN support. As a sweetener, Will points you at open source code on both the encoder and player side for doing this all yourself.
Chief Architect, Media Cloud Engineering
A great discussion from Streaming Media East discussing the battle to achieve Low-Latency Live Video by speakers from BAMTECH, Limelight and Red5Pro.In this session, learn about the pros and cons of various technologies on both the contribution and delivery side of lowlatency streaming, including small chunk size HLS/DASH, WebRTC, WebSockets, QUIC, SRT, and CMAF:
What does ‘Low Latency’ mean? Realtime? Are Cable & TV low-latency?
How do you synchronise OTT with Data and TV
Where is latency introduced? Which buffers have the biggest impact?
How can you fight rebuffing and which metric is the most useful?
Watching this webinar, you will learn about selecting and implementing the right premium content protection/DRM.
Content protection is key to a successful content monetisation strategy and with the recent evolution of streaming formats and standards, it is now easier than ever to create DRM-protected streaming systems. The ability to support all of today’s DRMs – including Widevine, Fairplay and PlayReady – in an efficient and easy-to-manage workflow is crucial for operators who want to enable richer feature sets, such as offline viewing and TVE.
Join Irdeto and Bitmovin for a live webinar to explore
+ Common approaches for Digital Rights Management in 2018
+ Changes coming to common workflows with CMAF (click here for primer on CMAF)
+ Real-world implementations of simple and complex systems
Webinar: Tue, Mar 27, 2018 6:00 PM – 7:00 PM BST
Sifting through the plethora of online codecs current and upcoming, Jason Thibeault and Thierry Fautier present this webinar from Harmonic and the Streaming Video Alliance
Recently, we have seen renewed attention on HEVC following Apple’s announcement to support the codec on their devices. 6 months later, Apple surprisingly became a founding member of the Alliance for Open Media (AOM) as a supporter of the AV1 codec. Yet, while the AOM group claims AV1 provides better performance than HEVC and will be offered royalty-free, there are some academic benchmarks who find AV1 inferior to HEVC on codec quality and performance.
In the meantime, MPEG / ITU-T is working on a next generation video codec, in a group called JVET (Joint Video Exploration Team) that has a mandate to deliver a video compression standard that can reach 50% over HEVC in 2020. Additionally, on the streaming side, we have seen the MPEG CMAF standard getting some traction not only to unify the HLS and DASH worlds, but also to offer the long awaited low latency delay solution for OTT.
This panel will discuss perspectives on these video compression technologies to help content providers, broadcasters, and service providers figure out the best path forward to distribute content over the internet in the coming years.
Will Law, shows we can get close to traditional live broadcast latency even over OTT. Summarising the typical latency and capability of the various streaming protocols, Will introduces CMAF and explains why this is destined to significantly reduce steaming latency.
Will’s enthusiastic and detailed explanations and the slides are a great reference to understand the pros and cons of HLS, Smoothstreaming, RTMP, WebRTC etc. even without the CMAF introduction which is a great primer for the future.