Video: Into the Depths: The Technical Details behind AV1

As we wait for the dust to settle on this NAB’s AV1 announcements hearing who’s added support for AV1 and what innovations have come because of it, we know that the feature set is frozen and that some companies will be using it. So here’s a chance to go in to some of the detail.

AV1 is being created by the AOM, the Alliance for Open Media, of which Mozilla is a founding member. The IETF is considering it for standardisation under their NetVC working group and implementations have started. On The Broadcast Knowledge, we have seen explanations from Xiph.org, one of the original contributors to AV1. We’ve seen how it fares against HEVC with Ian Trow and how HDR can be incorporated in it from Google and Warwick University. For a complete list of all AV1 content, have a look here.

Now, we join Nathan Egge who talks us through many of the different tools within AV1 including one which often captures the imagination of people; AV1’s ability to remove film grain ahead of encoding and then add back in synthesised grain on playback. Nathan also looks ahead in the Q&A talking about integration into RTP, WebRTC and why Broadcasters would want to use AV1.

Watch now!

Speaker

Nathan Egge Nathan Egge
Video Codec Engineer,
Mozilla

Video: Scalable Video Coding in HEVC & AV1

While it has never played a big role in practical applications, scalable video coding has been around since the times of MPEG 2, and might actually have some advantages over the multi-rate transmission often applied today. The purpose of scalable coding is to efficiently compress multiple different versions of the same video in one “scalable” bitstream. Actually this sounds like the perfect solution for VOD and streaming applications, but unfortunately it has some downsides and few vendors ever used it. In this talk, Chrstian will review the basic idea of scalable coding, how it is enabled in modern coding standards and the pros and cons of implementing the technology in streaming applications.

Speaker

Christian Feldmann Chrisitan Feldmann
Codec Engineer,
Bitmovin

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: The AV1 Video Codec

AV1 implementations are still being worked on along a number of fronts and the business cases are starting to shake out. Here’s a developer-focussed look at AV1 from patents to the way it works and to lessons learnt implementing it.

It was last year that the Alliance for Open Media released its next-generation video codec AV1. It achieves better compression than proprietary competitors, while its patents can be licensed via a royalty-free, open-source friendly license. With a broad array of industry support including all major browser vendors, many hardware partners, internet streaming video and conferencing providers, many think this is the best chance yet to create a successful video codec of its type that achieves wide deployment.

Speakers

Timothy B. Terriberry Timothy B. Terriberry
Developer,
Xiph.org

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

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

Video: High Dynamic Range in AV1

Google and University of Warwick explain AV1, its current status and how its can support HDR with WMG’s trueDR at the IABM’s Future Trends Theatre at IBC 2018.

Matt Frost from Chrome Media takes the stage first giving an overview of AV1’s goals, objective quality tests and where we are in AV1’s timeline as well as answering many questions from the audience.

Next Alan Chalmers from University of Warwick explains how they added HLG, HDR10 (PQ) to AV1. Also added are new, scene-referenced, HDR methods which Alan explains the works of and reasons for.

Watch now!
Speakers

Alan Chalmers Alan Chalmers
Professor
WMG & trueDR, University of Warwick
Matt Frost Matt Frost
Director, Product Management,
Google Chrome Media

Video: Mozilla TechSpeakers – AV1 Video Codec

AV1 is much talked about. We know what it promises, but how many of us remember what it does and why it is so promising?

Here, Mozilla – a member of the Alliance for Open Media – takes us through what AV1 is, how it works, why it promises to fare better than HEVC.

Covering:
• Brief history of video viewering royalty codecs
• What makes AV1 different
• The tools AV1 uses
• Quality Benchmarks
• HEVC Licensing
And much more

Watch now

Video: Comparing AV1, VP9, HEVC, & H.264

Comparing AV1, VP9, HEVC and H.264 is quite a task, but Streaming Media’s Jan Ozer is here to take us through it. From MPEG royalties to VP9 browser compatibility, from the AV1 roadmap to HEVC-enabled HLS, this is a comprehensive look at real world usage of the top four codecs.

This is a key topic because many content distributors and aggregators still use H.264 as their primary, if not exclusive, codec, but the bandwidth savings promised by newer, more powerful codecs are alluring. Those considering a switch must evaluate at least three options: HEVC, VP9, and AV1.

In this session, codec specialist Jan Ozer evaluates the quality of these codecs and compares them to H.264. Learn how much bandwidth you can save with each, and how the newer codecs compare from quality and implementation perspectives.

Watch now!

Video: The Future of Video Codecs: VP9, HEVC, AV1

FuboTV, Viacom, JWPlayer, Bitmoving and Littlstar sit down together to discuss the state and future of VP9, HEVC and AV1.

With the release of AV1 and support for HEVC in HLS, new dynamics are unfolding in the video codec world. VP9 is still gaining popularity among content providers, especially for web browsers and Android devices. This panel discusses the status of video codecs today, the benefits and drawbacks of each, and how these things will change in the future. It also discusses whether the industry is getting into yet another codec war, meaning that content providers will have to support multiple video codecs in parallel to reach all devices.

The panel hits these topics:

• What they are currently using and how they got there
• Bitmovin’s Video Developer Report
• AV1 coding performance benchmarks
• Use of VP9 and its future
• Apple’s adoption of HEVC on HLS
• 10-bit and 4:2:2 for consumer delivery
• HEVC Patent Pool Changes
• Cost effectiveness of AV1
• Smart TVs and much more!

Moderator:
Igor Oreper, VP, Solutions, Bitmovin
Panelists:
Sung Ho Choi, Co-Founder, Engineering, Fubo.tv
Glenn Goldstein, SVP, Chief Technology Convergence Officer, Viacom
John Luther, SVP of Technology, JW Player
Andrew Grathwohl, Director of Media Technologies, Littlstar

Watch now!