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Guru3D.com » News » AV1 video codec specification released - Royalty Free Video & Better Compression

AV1 video codec specification released - Royalty Free Video & Better Compression

by Hilbert Hagedoorn on: 03/28/2018 08:25 PM | source: | 18 comment(s)
AV1 video codec specification released - Royalty Free Video & Better Compression

The final specification of the upcoming AV1 video codec has been finalized and published, it was announced by the Alliance for Open Media with partners like Google, Netflix, Facebook, Amazon and Microsoft. It can potentially replace codecs like HEVC and VP9, royalty free.

AV1 offers improved compression compared to vp9 or hevc, the video bandwidth reduction can run upwards to 30 to 40 percent, without you seeing a difference. The best thing yet, this is a royalty-free model. 

For nearly three years, the Alliance for Open Media (AOMedia) has been working in lock-step with its members, the world’s best-known leaders in video, to develop a better quality internet video technology that benefits all consumers. Today, the Alliance is proud to announce the public release of the AOMedia Video Codec 1.0 (AV1) specification, which delivers cross-platform, 4K UHD or higher online video, royalty-free – all while lowering data usage.

 

 

Whether watching live sports, video chatting with loved ones, or binging on a favorite show, online video is becoming a bigger part of consumers’ daily lives. In fact, video is so important to users that by 2021, 82 percent of all the world’s internet traffic will be video, according to the Cisco Visual Networking Index™, 2016–2021. To remove many of the hurdles required by older, optical disc-era, video technologies, AOMedia developed AV1 specifically for the internet video-era, paving the way for companies to make more of the royalty-free, 4K UHD and higher video devices, products, and services that consumers love.

“Nearly three years after launching AOMedia, the AV1 codec addresses real bottlenecks for unleashing the highest-quality video for the entire ecosystem, allowing for better viewing experiences across all screens and data networks,” said AOMedia Executive Director Gabe Frost. “By listening to the industry’s feedback in an open and collaborative manner and bringing together leading experts to develop AV1, an entire ecosystem can begin creating video products and experiences that customers love.”

By delivering 4K UHD video at an average of 30 percent greater compression over competing codecs according to independent member tests, AV1 enables more screens to display the vivid images, deeper colors, brighter highlights, darker shadows, and other enhanced UHD imaging features that consumers have come to expect – all while using less data.

“We expect that the installed base of 4K television sets to reach 300 million by the end of 2019 and therefore there is already latent demand for UHD services over today’s infrastructure. AV1 will be widely supported across the entire content chain, especially including services. We forecast rapid introduction of AV1 content delivery to help the widespread proliferation of UHD streaming,” said Paul Gray, a Research Director at IHS Markit, a global business information provider.

The availability of AV1 as an open-source codec is a significant milestone in fulfilling the organization’s promise to deliver a next-generation video format that is interoperable, open, optimized for internet delivery and scalable to any modern device at any bandwidth. Designed at the outset for hardware optimization, the AV1 specification, reference code, and bindings are available for tool makers and developers to download here to begin designing AVI into products.

Specifically, the release of AV1 includes:

  • Bitstream specification to enable the next-generation of silicon
  • Unoptimized, experimental software decoder and encoder to create and consume the bitstream
  • Reference streams for product validation
  • Binding specifications to allow content creation and streaming tools for user-generated and commercial video


AV1 video codec specification released - Royalty Free Video & Better Compression




« G.SKILL Achieves Dual-Channel DDR4-5000MHz MemorySpeed on Air-Cooling · AV1 video codec specification released - Royalty Free Video & Better Compression · PC Building Simulator Launch Trailer - Leaves Early Access »

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RzrTrek
Senior Member



Posts: 2549
Joined: 2012-04-16

#5532831 Posted on: 03/28/2018 10:45 PM
This got my attention: "AV1 offers improved compression compared to VP9 and HEVC", that's really impressive.

Noisiv
Senior Member



Posts: 8199
Joined: 2010-11-16

#5532839 Posted on: 03/28/2018 10:55 PM
This got my attention: "AV1 offers improved compression compared to VP9 and HEVC", that's really impressive.


What caught my eye is this:

AV1 offers improved compression compared to vp9 or hevc, the video bandwidth reduction can run upwards to 30 to 40 percent, without you seeing a difference.

Which is a superbly sneaky thing to say. Because of the implication that is saves 30-40%. Yet this comes at the expense of image quality -> "without you seeing a difference".
So it's not apples to apples, because it's not REALLY the same video quality, is it?

For all we know, it's totally possible HEVC/vp9 can save 30-40% compared to AV1, without us seeing a difference


wavetrex
Senior Member



Posts: 1789
Joined: 2008-07-16

#5532869 Posted on: 03/29/2018 12:45 AM
If you don't want to see any difference you should not be using lossy compressing in the first place.

24-30-48-60-120 TIFF's per second.
Guess how much bandwidth does that consume ?

The entire point of lossy image/audio/video encoding is for the image or audio to be "good enough", perceptually the same as the uncompressed one.
If AV1 can show a video that is perceptually similar to HEVC with 30% less bitrate, it's win-win !

I'm guessing they are saving more bitrate on the motion encoding, so if you look at extracted screenshot from H264 or H265 and one from AV1, the AV1 might be worse. However, when it's playing, the difference might be completely imperceptible. We will see... (literally!)

Noisiv
Senior Member



Posts: 8199
Joined: 2010-11-16

#5532875 Posted on: 03/29/2018 01:09 AM
Who even mentioned uncompressed?

The comparison is between AV1/HEVC/VP9 in lossy encoding. And it's a mess out there when it comes which one is the best. As I thought. Depends on who you ask.


If you don't want to see any difference..


No I don't want to see any difference between the compared samples. And if you're comparing the samples fairly your job is to minimize the quality difference (no need for lossless), not to optimize one for bandwidth, and then claim there is "almost" no difference, yet the bandwidth is saved. That's pure bias. You don't know what am I going to do with the video, am I going to edit it or zoom in, and then suddenly I AM SEEING the difference.

You could have just as well optimized HEVC for bandwidth and pretty much claim the same thing, if the codecs are of similar quality, and it seems that they are.

Koniakki
Senior Member



Posts: 2843
Joined: 2009-09-15

#5532911 Posted on: 03/29/2018 03:19 AM
Any idea when pornhub will implement this?
Asking for a friend

I wish I still worked there, so I could tell you.. :cool:

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