Video: ABR Streaming and CDN Performance

Hot on the heel’s of yesterday’s video all about Adaptive Bitrate (ABR) streaming we have research engineer Yuriy Reznik from Brightcove looking at the subject in detail. We outlined the use of ABR yesterday showing how it is fundamental to online streaming.

Brightcove, an online video hosting platform with its own video player, has a lot of experience of delivery over the CDN. We saw yesterday the principles that the player, and to an extent the server, can use to deal with changing network (and to an extent changing client CPU usage) by going up and down through the ABR ladder. However this talk focusses on how the CDN in the middle complicates matters as it tries its best to get the right chunks in the right place at the right time.

How often are there ‘cache misses’ where the right file isn’t already in place? And how can you predict what’s necessary?

Yuriy even goes in to detail about how to work out when HEVC deployment makes sense for you. After all, even if you do deploy HEVC – do you need to do it for all assets? And if you do only deploy for some assets, how do you know which? Also, when does it make sense to deploy CMAF? In this talk, we hear the answers.

The slides for this talk

Watch the video now!

Speaker

Yuriy Reznik Yuriy Reznik
VP, Research
Brightcove

Video: HEVC/H.265 Video Coding Standard

HEVC, also known as H.265 is often discussed even many years after its initial release fro MPEG with some saying that people aren’t using it and others saying its gaining traction. In reality, both sides have a point. Increasingly HEVC is being adopted partly because of wider implementation in products and partly because of a continued push toward higher resolution video which often gives the opportunity to make a clean break from AVC/H.264/MPEG 4.

This expert-led talk looks in detail at HEVC and how it’s constructed. For some, the initial part of the video will be enough. Others will want to bookmark the video to use as reference in their work, whilst still others will want to watch the whole things and will immediately find it puts parts of their work in better context.

Wherever you fit, I think you’ll agree this is a great resource for understanding HEVC streams enabling you to better troubleshoot problems.

Watch now!

Speakers

David Marpe David Marpe
Head of Department Video Coding & Analytics,
Fraunhofer Heinrich Hertz Institute
Karsten Suehring Karsten Suehring
Project Manager,
Fraunhofer Heinrich Hertz Institute
Benjamin Bross Benjamin Bross
Project Manager,
Fraunhofer Heinrich Hertz Institute
Dan Grois Dan Grois
Former Senior Researcher,
Fraunhofer Heinrich Hertz Institute

Webinar: What to See at NAB

Date: Friday, March 29th 2019
Time: 11am PT / 2pm ET / 18:00 GMT

NAB is coming around again and the betting has started on what the show will bring. Whilst we can look to last year for hints, here editors from Streaming Media come together to discuss the current trends in the industry and how they will be represented at NAB.

Some highlights of the conversation will be:

  • What HEVC solutions people are showing – the ongoing codec wars are captivating to most people as AV1 tries – and gradually succeeds – to break its ‘too slow’ label, whilst HEVC continues to grow acceptance with its ‘ready to deploy’ label despite the fees.
  • UHD production and delivery – We know that production houses prefer to capture higher resolution as it increases the value of their content and gives them more options in editing. But how far is UHD developing further down the chain. Is it just for live sports?
  • Live Streaming – SRT is bound to keep making waves at NAB has Haivision plans its biggest event yet discussing the many ways it’s being used. SRT delivers encrypted, reliable streams – while there are competitors, SRT continues to grow apace.
  • NDI – This compressed but ultra low latency codec continues to impress for live production workflows – particularly live events, though it’s not clear how much – if at all – it will make its way into top-tier broadcasters.

Much more will be on the cards, so register now for this session on Friday March 29th.

Speakers

Troy Dreier Troy Dreier
Senior Editor,
Streaming Media
Steve Nathans-Kelly Steve Nathans-Kelly
Editor
Streaming Media
Eric Schumacher-Rasmussen Eric Schumacher-Rasmussen
VP & Editor-in-Chief
Streaming Media

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: The state of advanced codecs; separating hype from reality

There are a lot of codecs both new and old that are in use or vying to be the next big thing. Tom Vaughan helps us see what they really can achieve and where each one is useful.

Recorded at San Francisco Video Tech Meetup in September, this video starts with a look at a the ‘hype cycle’. Tom places each codec, from MPEG 2 to VVC on the curve before looking at what the barriers to adoption are.

Tom then looks at HEVC discussing which devices can receive it, which can create it, the streaming services which support it and where adoption is likely to be. Finally, HEVC discussion is complete without a look at the HEVC patent landscape Venn diagram.

The focus then shifts to the Alliance for Open Media and their AV1 codec, its patent status and technical progress to date. He then discusses the performance of AV1, HEVC and Beamr against each other.

Almost brand new out of the starting blocks is VVC from MPEG and the Media Coding Industry Forum (MC-IF). Tom explains the aims of the forum and the VVC codec they are creating before taking questions from the floor.

Watch now!

Speaker

Tom Vaughan Tom Vaughan
VP Strategy,
Beamr

Webinar: Video Delivery Trends


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.

Register now!

Speakers

Guillaume Bichot Guillaume Bichot
Head of Exploration,
Broadpeak
Joshua Pressnell Joshua Pressnell
Chief Technology Officer,
Penthera
Pierre-Louis Theron Pierre-Louis Theron
CEO & Co-founder
Streamroot
Johan Bolin Johan Bolin
Chief Product & Technology Officer,
Edgeware AB
Steve Miller-Jones Steve Miller-Jones
Vice President of Product Strategy
Limelight Networks
Jason Thibeault Moderator:
Jason Thibeault

Executive Director
Streaming Video Alliance

Video: AV1 vs. HEVC: Perceptual Evaluation of Video Encoders

Zhou Wang explains how to compare HEVC & AVC with AV1 and shares his findings. Using various metrics such as VMAF, PSNR and SSIMPlus he explores the affects of resolution on bitrate savings and then turns his gaze to computation complexity.

This talk was given at the Mile High Video conference in Denver CO, 2018.

Speakers

Zhou Wang Zhou Wang
Chief Science Officer,
SSIMWAVE Inc.

Video: HEVC vs AV1

Ian Trow looks at the two big names in the room, AV1 and HEVC to understand them from a business perspective as well as technical.

Speaking at the Northern Waves conference, Ian covers:

  • Head-end options
  • OPEX & CAPEX
  • Cloud vs traditional
  • Encoding challenges and latency
  • Evaluation criteria (Functionality, TCO, Time to Market and more)
  • AV1 for OTT
  • Royalties
  • Encoding Structure
  • CDN Savings
  • AV1 Timeline
  • …so quite a bit then!

Watch now!
and check out the technical paper Ian presented on AV1 at IBC 2018

Speaker

Ian Trow Ian Trow
Consultant,
Codec & Video Tech Evangelist

[Video]: Video Compression 101

Jigsaw24’s Chief Engineer, Phil Crawley, explains video codecs from the fundamentals up. Codecs touch every part of the broadcast chain and are a vital part of the industry as much as of day to day life. So it’s worth brushing up or learning the basics to help you to fully understand what’s happening with today’s codecs, whether that be HEVC, AV1, JPEG XS or trusty MPEG4.

Phil covers:

  • Compressed and Uncompressed video & codecs
  • DCT Principles
  • Intra/Inter-frame compression
  • Acquisition Vs Editing Vs. Transmission codecs
  • Measuring compression effects
  • Codecs Vs File Formats & wrappers
  • Compression concatenation
  • MPEG4, H.264(AVC) & H.265(HEVC)

Watch now!

Want to take things further? Check out Harmonic’s Next-Gen Compression Techniques

Speaker

Phil Crawley Phil Crawley
Chief Engineer,
Jigsaw24

Top Video of 2018: HEVC vs AV1 and the Future of the Codec Battle

 

As the first post of 2019, please allow me to say Happy New Year and to thank you for the time you spend coming to the website, following by email and/or following on social media. Your visits, interest and recommendations are very important and highly appreciated. 2018 ended with being nominated for the Royal Television Society Website of the Year. Whilst the hardworking and knowledgable people at The Broadcast Bridge won, and deservedly so, I hope you’ll be as mighty pleased as I was to see a non-commercial site pitted against the best in the industry. Be assured that The Broadcast Knowledge always aims higher than before so what better motivation than to top that!

As we set our sights on 2019, there’s time for a brief look back at the top video linked to here on The Broadcast Knowledge in 2018. Looking back at the stats, it has the most page visits and the most clicks, so let’s revisit this panel on AV1 and HEVC. It’s not often you get the likes of Facebook and Harmonic sharing their latest research on stage with companies like Harmonic and Bitmovin who are very active in the Codec community, so it’s no surprise this piqued the interest of many.

This panel took place during NAB 2018 when AV1 had just ‘released’ the AV1 codec at the show but the points discussed are as relevant today as they were then including the adoption of HEVC in the marketplace. Having said that, do check out the AV1 and HEVC tags to see what more recent discussions there have been including a discussion of the future of video codecs at Streaming Media East 2018

Sit back and watch HEVC vs AV1 and the Future of the Codec Battle!

Speakers

Jan Ozer Moderator
Jan Ozer
Principal

Doceo Publishing

Thierry Fautier Mr Thierry Fautier

VP, Video Strategy

Harmonic

Michael Coward Mike Coward

Director of Engineering

Facebook

Christopher Mueller Christopher Mueller

CTO

BitMovin

Matt Frost Matt Frost

Head of Strategy and Partnerships

Google Chrome Media