AV1 Image File Format Specification Gets an Upgrade with AVIF v1.2.0
65 points by breve 3 days ago | 5 comments
  • dagmx 3 days ago |
    This is pretty cool. There’s a dearth of higher bit depth formats that are also compressed.

    EXR and TIFF are really the only ones most people use but this opens up a fairly interesting option now for use cases where size is important.

    Does this extend to the video codec? This would be pretty amazing for media reviews if so.

    • miladyincontrol 3 days ago |
      I'd argue JXL is fairly used, least in the photography circles I involve myself in. DNG 1.7 added JXL compression and at least for sharing raws around on the web it's been a boon. Lightroom will output 16 bit ones but you can go up to 32 bit far as I'm aware.

      Of course normal JXL files support similar as well, with meaningful progressive decoding at better ratios.

      • dagmx a day ago |
        If you’re talking about embedded inside DNG, then you’re talking roughly a maximum of 14 bits. There’s not really much capture beyond that , whereas this + the other formats I listed provide 16 bits. That’s quite a significant jump
  • Santosh83 3 days ago |
    So when will support come to libavif, libaom, aom-tools and concerned packages? Are they pushed on to Arch already? Or still just upstream github for now?
  • jauntywundrkind 3 days ago |
    The layering reminds me a bit of opus 1.6 which similarly maintains backwards compatibility while laying in better audio for newer decoders, (and as a scalable decoding for those who don't want to use as much decode compute). https://opus-codec.org/demo/opus-1.6/ https://news.ycombinator.com/item?id=46284313