CMAF brings low latency streams of less than 4 seconds into the realms of possibility, WebRTC pushes that below a second – but which is the right technology for you?
Date: June 12th 2019 Time: 11am PST / 2pm EST / 19:00 BST
CMAF represents an evolution of the tried and tested technologies HLS and DASH. With massive scalability and built upon the well-worn tenants of HTTP, Netflix and a whole industry was born and is thriving on these still-evolving technologies. The push to reduce latency further and further has resulted in CMAF which can be used to deliver streams with five to ten times lower latencies.
WebRTC is a Google-backed streaming protocol with the traditional meaning of streaming; it pushes a stream to you a opposed to the HLS-style methods of making small files available for download and reassembly into a stream. One benefit of this is extremely low bitrates of 1 second or less. Used widely by Google Hangouts and Facebook messenger, WebRTC is increasingly an option for more broadcast-style streaming services from live sports & music to gaming and gambling.
Both have advantages and draw-backs so Wowza’s Barry Owen and Anne Balistreri are here to help navigate the ins and outs of both technologies plus answer your questions.
There are two main modern approaches to low-latency live streaming, one is CMAF which used fragmented MP4s to allow frame by frame delivery of chunks of data. Similar to HLS, this is becoming a common ‘next step’ for companies already using HLS. Keeping the chunk size down reduces latency, but it remains doubtful if sub-second streaming is practical in real world situations.
Steve Miller Jones from Limelight explains the WebRTC solution to this problem. Being a protocol which is streamed from the source to the destination, this is capable of sub-second latency, too, and seems a better fit. Limelight differentiate themselves on offering a scalable WebRTC streaming service with Adaptive Bitrate (ABR). ABR is traditionally not available with WebRTC and Steve Miller Jones uses this as an example of where Limelight is helping this technology achieve its true potential.
Comparing and contrasting Limelight’s solution with HLS and CMAF, we can see the benefit of WebRTC and that it’s equally capable of supporting features like encryption, Geoblocking and the like.
Ultimately, the importance of latency and the scalability you require may be the biggest factor in deciding which way to go with your sub-second live streaming.
With the continual quest for lower and lower latencies in streamed video, WebRTC is an attractive technology with latencies in the milliseconds rather than seconds. Limelight’s lowest latency offerings are based on WebRTC.
Alex Gouaillard from millicast explains the brief history and current status of WebRTC including which browsers are supported. After talking about optimisations that have been made, he talks about Bandwidth Adaptive Media and other use cases to be solved.
Supported codecs and, importantly, Scalable Video Coding support is discussed along with ways of implementing WebRTC. Alex also talks about the testing that’s gone in to the standard looking at bandwidth and latencies.
Lastly, a key question around WebRTC is ‘does it scale’ which is discussed before the conclusion.
With live online viewing delayed by up to 30 seconds or more compared to broadcast TV, enriching the viewing experience with online content, while ensuring that all viewers see the action at the same time, is a significant challenge. To provide viewers with engaging online experiences that keep them coming back for more, service providers need true real-time streaming.
This webinar will cover questions such as:
How important is latency for live online streaming?
Which live streaming workflows offers the greatest opportunity to generate additional revenue?
What are the main challenges faced by online video service providers when live-streaming major events such as sports tournaments?
Being a webinar from Limelight, you will also hear
How Limelight realtime streaming minimizes latency
How to reach the widest audience with native browser support
How to enable new business models with interactivity
How to reach viewers everywhere
All this along with key findings from DTVE’s industry survey, showing that industry executives believe live streaming could ultimately supplant broadcast technology, but challenges remain.
Vice President of Product Strategy,
Limelight, Streaming Video Alliance and Videonet come together to discuss the introduction of WebRTC’s sub-second latency for live streaming which is opening the way for a ‘better-than-broadcast’ experience – enabling new ways to engage viewers and monetise them.
WebRTC provides real-time video delivery and can now be implemented in a CDN environment for large-scale distribution and has extremely low latency.
This webinar covers:
Making WebRTC part of your workflow
Compression, DRM & ad insertion
Innovation opportunities for broadcasters and challenger OTT providers
Special focus on increasing viewer engagement
creating new revenue streams.
New business partnerships
Optimisation for multiscreen television & connected TV devices
Date: Tuesday Jan 29th, 2018 11am PT / 2pm ET / 19:00 GMT
In this webinar Limelight discuss some of the challenges with delivering low latency video and take a deeper dive to look at what causes latency, the WebRTC protocol and how Limelight Networks delivers real-time streaming at global scale.
Topics that will be discussed during this webinar include:
Challenges delivering low-latency video
Various approaches for reducing latency (small chunk HLS, peer-to-peer, WebRTC)
Encoding and codecs
Stream access and security
How to implement interactivity into live streaming video
Technical Product Marketing Manager
WebRTC offers wide compatibility and low latency, so what’s not to like? This webinar looks at where WebRTC fits in just nicely and where other protocols are better. This is the second in a three-part webinar series from Wowza looking at how WebRTC helps general use cases and how their equipment supports that.
This webinar covers:
Ideal uses cases to employ WebRTC
How WebRTC integrates with Wowza Streaming Engine and how WSE facilitates scaling to large audiences with this standard
How you can leverage WebRTC, Wowza Streaming Engine, and Wowza Streaming Cloud to easily deliver lightning fast, low latency video streams
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
Viewers are increasingly watching live sports and other realtime events online, but the inherent delay in traditional online streaming often means they learn about an important play from social media before they are able to see it. Delivering true realtime global online streaming requires a new approach.
Video delivery experts from Limelight Networks present ways to deliver broadcast quality low-latency live streams, including the ability for viewers to watch live video with less than one second of latency on standard web browsers—without special plug-ins. Also discussed is how to integrate live video and interactive data to open up new workflows in sports, gaming, auctions, and more and make live viewing a more interactive social experience.
Join this webinar for:
• Latest market data on the evolving viewer expectations for online
• Delivering low-latency live video with HLS and DASH chunked streaming techniques
• Realtime global live streaming using WebRTC
• How integrated live bidirectional data sharing can help open up new business opportunities
• and much more! Register Now!
Sr. Manager Product Marketing, Limelight Networks
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?