Video: Low Latency and High QOE for Live Streaming


Low latency streaming is always a compromise, but what can be done to keep QOE high?

This on-demand webinar looks at CMAF and presents some real-world data on this low latency technique. The webinar starts by explaining that CMAF is a low-latency streaming technology similar to HLS and other streaming protocols where the idea is to deliver the video as small files. Olivier and Alain from Harmonic explain how this is done and look at some of the trade-offs and compromises that are needed and introduce techniques to keep QOE high. They also look at deployment in cloud vs. on premise.

Pieter-Jan Speelmans talks about play tradeoffs and optimisations within the player. CMAF allows the buffer to be reduced and whilst a bad network may mean you buffer is similar to ‘normal’, but in good networks, this buffer can be brought down significantly. He also talks about how ABR switching is impacted by GOP length even in CMAF.

Viaccess-Orca explains how DRM works with CMAF and looks at some of the challenges including licences acquisition time and overloading licence servers at the beginning of events. Akamai’s Will Law explains some benefits of CMAF and the near-real-time of chunk-based transfer (HTTP 1.1) and how downloading chunks at full speed leads to problems when the same broadband link is used by several clients.

There are lots of good talks on CMAF, but this is one of the few which talks about CMAF not as theory, but as is deployable today.

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Speakers

Olivier Karra Olivier Karra
SaaS Business Development Director,
Harmonic Inc.
Alain Pellen Alain Pellen
Sr. Manager, OTT & IPTV Solutions,
Harmonic Inc
Will Law Will Law
Chief Architect – Media Devision,
Akamai
Pieter-Jan Speelmans Pieter-Jan Speelmans
Founder & CTO,
THEOplayer
Nicolas Delahaye Nicolas Delahaye
VP Engineering Player,
Viaccess-Orca

Webinar: Low-Latency CMAF vs. WebRTC

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.

Register now!

Speakers

Barry Owen Barry Owen
VP, Professional Services,
Wowza
Anne Balistreri Anne Balistreri
Product Marketing Manager,
Wowza

Video: JPEG-XS and ST 2110

JPEG XS is a brand-new, ultra-low latency standard delivering JPEG 2000 quality with 1000x lower latency; microseconds instead of milliseconds. This mezzanine compression standard promises compression ratios of up to 10:1, resolutions of up to 8K plus HDR and features frame rates from 24 to 120 fps.

Jean-Baptiste Lorent from intoPIX shows how JPEG-XS can be used with SMPTE ST-2110 stack. Part -22 of ST 2110 allows for transport of compressed video essence as an alternative to uncompressed essence – all the other elementary streams stay the same, just the video RTP payload changes. This approach saves a lot of bandwidth and keeps all the existing advantages of moving from SDI to IP at the same time.

Based on TICO which arrived in products four or more years ago allowing HD products to support UHD workflows, JPEG XS was also designed for visually lossless quality and maintaining that quality over multiple re-encoding stages. The combination of very-low microsecond-latency and relatively low bandwidth makes it ideal for remote production of live events.

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Speaker

Jean-Baptiste Lorent Jean-Baptiste Lorent
Director Marketing & Sales
intoPIX

Video: An Overview of the ISO Base Media File Format

ISO BMFF a standardised MPEG media container developed from Apple’s Quicktime and is the basis for cutting edge low-latency streaming as much as it is for tried and trusted mp4 video files. Here we look into why we have it, what it’s used for and how it works.

ISO BMFF provides a structure to place around timed media streams whilst accommodating the metadata we need for professional workflows. Key to its continued utility is its extensible nature allowing additional abilities to be added as they are developed such as adding new codecs and metadata types.

ATSC 3.0’s streaming mechanism MMT is based on ISO BMFF as well as the low-latency streaming format CMAF which shows that despite being over 18 years old, the ISO BMFF container is still highly relevant.

Thomas Stockhammer is the Director of Technical Standards at Qualcomm. He explains the container format in structure and origin before explaining why it’s ideal for CMAF’s low-latency streaming use case, finishing off with a look at immersive media in ISO BMFF.

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Speaker

Thomas Stockhammer Thomas Stockhammer
Director Technical Standards,
Qualcomm

Video: Sub-Second Live Streaming: Changing How Online Audiences Experience Live Events

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.

Watch now!

Speakers

Steve Miller-Jones Steve Miller-Jones
VP Product Strategy,
Limelight Networks

Webinar: Deliver global sub-second live streaming experiences to increase viewer engagement

Date: Thursday March 21st, 2019
Time: 15:00 GMT

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.

Speakers

Steve Miller-Jones Steve Miller-Jones
Vice President of Product Strategy,
Limelight Networks
Stuart Thomson Stuart Thomson
Editor,
Digital TV Europe

Video: VP9 Transcoding for Live eSports Broadcast

VP9 is a well-known codec, but it hasn’t seen many high-profile, live deployments which makes Twitch’s move to deliver their platform using VP9 in preference over AVC all the more interesting.

Here, Yueshi Shen from Twitch, explains the rationale for VP9 by explaining the scale of Twitch and looking at their AVC bitrate demands. He explains the patent issues with HEVC and VP9 then looks at decoder support across devices and platforms. Importantly, encoder implementation is examined leading to Twitch’s choice of FPGA to provide live encoding.

Yueshi then looks at the potential of AV1 to Switch_Frame to provide low-latency broadcast at scale.

Watch now!

Speaker

Yueshi Shen Yueshi Shen
Principal (Level 7) Research Engineer & Engineering Manager,
Twitch

Video: Using CMAF to Cut Costs, Simplify Workflows & Reduce Latency

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.

Iraj covers:

  • A brief history of CMAF (Common Media Format)
  • The core technologies (ISO BMFF, Codecs, captions etc.)
  • Media Data Object (Chunks, Fragments, Segments)
  • Different ways of video delivery
  • Switching Sets (for ABR)
  • Content Protection
  • CTA WAVE project
  • Wave content specifications
  • Live Linear Content with Wave & CMAF
  • Low-latency CMAF usage
  • HTTP 1.1 Chunked Transfer Encoding
  • MPEG DASH

Watch now!

Speaker

Iraj Sodagar Iraj Sodagar
Independant Consultant
Multimedia System Architect, NexTreams

Webinar: The Power of Now: Enriching TV with sub-second latency for live streaming


Date: Today, Jan 30th, 2019 15:00 GMT / 10am EST

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
  • Browser compatibility
  • Compression, DRM & ad insertion
  • Redundancy
  • 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

Register now!

Speakers

Steve Miller Jones Steve Miller Jones
VP Product Strategy
Limelight Networks
Jason Thibeault Jason Thibeault
Executive Director
Streaming Video Alliance
John Moulding John Moulding
Editor-in-Chief
Videonet

Webinar: CMAF Low Latency Webinar


Date: Jan 30th, 9am PT / 17:00 GMT
Now on demand!

Bitmovin presents a delve into CMAF – the new low-latency streaming protocol which promises online streaming latencies on-par with traditional broadcast.

Leaders in this space, Anevia, Bitmovin and Fastly come together to discuss whether the industry is in adopting CMAF, how you can implement it and how it works.

Watch now!