The AV2 Video Standard Has Released (Final v1.0 Specification)

(av2.aomedia.org)

106 points | by ksec 8 hours ago

7 comments

  • jjcm 2 hours ago
    A few things - this is one step in a long, LONG path. AV2 is currently unusable in its current state (the encoder typically runs at around 1fps on good hardware), and likely will remain so til ~2028 when the first av2 hardware accelerated chips start dropping. Even then, I wouldn't expect AV2 streams to be common til 2030.

    IMO, if it were just the efficiency gains on the table (which are substantial - ~20-30% over AV1), I'd say that AV2 isn't worth it. The biggest thing it does add though is multi-stream support, which will be a big win for VR and live sports. The other fun thing is you can send an alpha channel as a separate stream, which the file will then composite for proper transparent video support.

    • adgjlsfhk1 2 hours ago
      Based on AV1's trajectory, hardware encode isn't necessary (though it is nice). The current encoder is a reference encoder. Now that the spec is finalized, expect significant speed improvements from production encoders (realtime likely won't happen until we get it in hardware though)
    • dgreensp 2 hours ago
      Where do you see information about the efficiency gains over AV1?
    • shmerl 2 hours ago
      That's fine and not anything new for codecs, they always take a long time before mass adoption.

      Take a look at AV1 itself, you can't even say it's really ubiquitous on all hardware. It's quite well along in adoption compared to early days, but some mobile devices are still lacking hardware acceleration for it.

  • ethin 12 minutes ago
    And how long will it take before someone implements this standard and gets sued because Adobe or Dolby or whoever wanted to get slapped down? My knowledge may be out of date but if this is as "open" as AV1, I'm very skeptical that the individual companies will actually allow that. Greed and all that.
  • Dwedit 1 hour ago
    What I'm interested in is seeing how this will improve the AVIF image format. AVIF stomps the competition for low-bitrate still images (where chroma subsampling is used). For lossless images, not so much. Lossless JPEG XL and lossless WEBP make lossless AVIF look like a joke.
  • ParadisoShlee 1 hour ago
    Mostly a joke... I've been waiting for the AV1 Apple TV, so now I'm just waiting for AV2 support as Apple TV as well now.
    • breve 39 minutes ago
      My 10 year old iPhone 7 can play 1080p AV1 video in software for more than 200 minutes with VLC. The iPhone 7 was released a year and a half before AV1 was.

      So I think it's a safe bet the current Apple TV devices are capable of playing AV1 video in software. There's a VLC release for Apple TV:

      https://www.videolan.org/vlc/download-appletv.html

      https://apps.apple.com/us/app/vlc-media-player/id650377962?p...

      • jshier 8 minutes ago
        Not especially relevant, as the obvious use of AV1 on the AppleTV is streaming, and the OS frameworks don't request AV1 without hardware decoding. Services which provide their own video decoding (are there any?) don't seem interested providing their own software decoder for the ATV, despite the bandwidth savings.
    • londons_explore 1 hour ago
      Outside the apple ecosystem, AV1 is supported nearly everywhere.
  • mmastrac 2 hours ago
    Dav2d doesn't have the same nice ring to it. I hope there's someone with a decent repo-name punning skill who'll contribute before that.

    avi2ude? av2go?

    • Dwedit 2 hours ago
      At least it's not D4vd.
    • toast0 2 hours ago
      2av2quit?
  • shmerl 2 hours ago
    Congrats!

    How is the case of fighting off Dolby's patent racketeering going? They tried to attack Snapchat for using AV1.

    • mmastrac 2 hours ago
      Last update seems to be "lawsuit was filed" with zero updates since then. That stuff tends to move slowly.
      • shmerl 2 hours ago
        Hopefully their patents will be busted and preferably Dolby will be also forced to pay damages for filing invalid lawsuits. That's the only way to teach patent trolls proper lessons.
    • basilgohar 2 hours ago
      This will always happen. There are just some entities that can't stand not seeking rent.
      • ethin 8 minutes ago
        It may always happen but it would happen less if we updated patent laws to fine people who filed invalid patents or enforced some kind of similar punishment. If you file a patent, it's up to you to verify that your patent is actually valid, and the courts shouldn't have to do that legwork for you. It also doesn't help that the patent office/components of governments don't review patents as thoroughly as they used to. Same with trademarks.
  • tysonbru 1 hour ago
    [dead]