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
Senior Member
Posts: 8201
Joined: 2010-11-16
LOL correction
x265 :
SSIM All:0.956373 (13.602420)
PSNR average:38.090090
VMAF score = 96.459293
AV1 got its azz kicked handily by both VP9 and HEVC LOL
Senior Member
Posts: 6070
Joined: 2011-01-02
Glad to hear its free to use. Hopefully with adaption it will further be optimized.
Senior Member
Posts: 8201
Joined: 2010-11-16
if you doing video editing, u want lossless source in first place
What you want, and what you have, are two different things. I am allowed to edit, even if I don't have access to uncompressed..?
now regarding quality... what matter here is basically "file-size" right ? ... smaller file-size needed to transfer = less bandwith (either counted per-packet or whole size)
simply look back pass enconding
like with HEVC vs H264.... HEVC successful making file size smaller than H264 right
now do you see "quality difference" between HEVC and H264 (at same preset)?
At what bit rates?.
Someone already did it for me. I take HEVC when I can because it's been determined to be better by objective measurement, especially on lower bitrates.
What are we arguing about?
I said they used funny wording "without you seeing a difference", suggesting subjective evaluation has been used.
And it's a mess out there when it comes to evaluating and comparing these codecs, even with objective methods. There is no consensus. Not least because the codec is not finished, and they have delayed the bit freeze for the 3rd time.
And it's slow as fuk. The aim is 5x slower in encode and 2x in decode than VP9 by the end of the year.
Now where is 30-40%?
(latest version 1.0)
https://forum.doom9.org/showthread.php?s=6c90646d3f2ad068ea121e7fc73e4ee0&p=1837312#post1837312
some tests with foreman clip @250kbit/s on my i7-2600k:
x265 - 2.7+3-9086c8a3e76d: 8bit+10bit+12bit
preset : veryslow
real bitrate 254 kb/s size 311 KiB
time : pass 1 : 39s pass 2 : 39s total time : 78 s
metrics :
SSIM All:0.952898 (13.269586)
PSNR average:37.447079
VMAF score = 95.024192
libvpx-vp9 v1.7.0-213-gf4b1eca53
preset : cpu-used 0
real bitrate 238 kb/s size 291 KiB
time : pass 1 : 2s pass 2 : 68s total time : 70 s
metrics :
SSIM All:0.952918 (13.271442)
PSNR average:37.275722
VMAF score = 94.977788
aomenc 0.1.0-8871-g7a3c26460
preset : cpu-used 2
real bitrate 252 kb/s size 307 KiB
time : pass 1 : 2s pass 2 : 1254s total time : 1256 s
metrics :
SSIM All:0.951930 (13.181228)
PSNR average:37.565993
VMAF score = 95.79106