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    The new King of Codecs: AV1 (Patent Free)
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    With a patent defense system in place to keep it free, AV1 looks to surpass H.265 as the next major codec for cameras and the web.

    Patent defense: https://aomedia.org/the-alliance-for...dia-statement/
    https://www.streamingmedia.com/Artic...ticleID=130284
    https://www.tomshardware.com/news/in...der,38551.html

    Source code- build it yourself!
    https://github.com/AOMediaCodec/av1-spec
    Intel's high performance work in progress: https://github.com/OpenVisualCloud/SVT-AV1
    Another high performance version, written in Rust (vs. C/C++): https://github.com/xiph/rav1e

    I discovered AV1 when researching codecs for video streaming for iOS (haven't found an ARM/iOS GPU accelerated version yet, though Apple has recently joined the AV1 project).

    Apple, Samsung join AV1:
    https://bitmovin.com/apple-joins-av1-codec-consortium/
    https://www.cnet.com/news/samsung-th...-standard-av1/

    Testing AV1 on YouTube: https://www.ghacks.net/2018/09/13/ho...rt-on-youtube/


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    Netflix, Google, Microsoft, Amazon, Apple, Facebook, Samsung, Cisco all behind AV1: https://www.cnet.com/news/netflix-yo...1-compression/

    Enough leverage to keep patent pools from interfering with freedom.

    This is amazing and exciting for those involved in media!


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    So it's a new delivery CODEC ?

    I was kind of p*ssed this month when I found out that Final Cut Pro X no longer supports Cineform or DNxHD CODECs, so the past 6 years of projects can't be opened with FCPX any more. ( I don't work with FCPX, but one of my regular editors does )


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    The open source Cineform could have been cut because it out performs (closed source Apple owned) ProRes by 1.25 - 2.3x in efficiency (I've verified this- anyone can replicate these results). I guess that's good for storage manufacturers ;)

    AV1 can be used anywhere H.264/H.265 is used. In a camera, for delivery etc. With its sophisticated encoding tech (very flexible macroblock sizes and patterns), even ALL-I (intraframe) might be useful as a fast, small file size intermediate codec (another more modern/efficient competitor to ProRes). Since it's free with 'patent protection' everyone of note is jumping on board- lots of rapid development progress too. Even Apple and Samsung jumped on board recently (they're part of the H.265 patent pool and likely VVC (the real competitor to AV1).


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    What happened to VP9?


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    Quote Originally Posted by jcs View Post
    AV1 can be used anywhere H.264/H.265 is used. In a camera, for delivery etc.
    What's the AV1 CPU/GPU load like compared to h.264 or h.265 ?

    I still find h.265 to be a burden on my workstation when I've got a few 4K videos layered on top of each other. ( which is one of the reasons I've been transcoding to Cineform for many years now )


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    Look like VP9 is still being used on YT until AV1 gets performance optimized: https://www.youtube.com/testtube (AV1 only available for SD videos (when opting in)).

    AV1 appears to be more efficient + has patent protection = apparently why everyone's jumping on board. A patent pool company might try something, however given the powerful companies behind the patent protection, appears unlikely they'll prevail.

    https://en.wikipedia.org/wiki/VP9
    On September 12, 2014, Google announced that development on VP10 had begun and that after the release of VP10 they plan to have an 18-month gap between releases of video formats.[101] In August 2015, Google began to publish code for VP10.[102]

    However, Google decided to incorporate VP10 into AOMedia Video 1 (AV1). The AV1 codec will use elements of VP10, Daala (Xiph/Mozilla) and Thor (Cisco).[103][104][105] Accordingly, Google has stated that they will not deploy VP10 internally nor officially release it, making VP9 the last of the VPx-based codecs to be released by Google.[106]


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    CPU load for AV1 is likely to be slower than H.265. However, unlike H.265, many companies are scrambling to optimize AV1, including Intel (since it's open source / not patent controlled / owned). Remember H.264 took quite a long time to 'get fast'. Due to the widespread adoption, expect to see AV1 performance improve faster than any codec before it. It's already available on YouTube for SD videos.


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