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AOMediaCodec/libavif

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libavif - Library for encoding and decoding .avif files

15 mentions on Hacker News by 10 people: 1 story, 14 comments · first 2020-06-23 · latest 2026-10-16

Mentions per year 15 mentions · busiest year 2023 (4)
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  1. It's part of libavif. I've usually compiled it myself. https://github.com/aomediacodec/libavif avifenc supports args like enable-chroma-deltaq. I've used those but recently stopped, and nothing substantial changed.
    comment by theandrewbailey · 2026-10-16 · in JPEG XL vs. AVIF for web use-cases
  2. …where my source would save things as PNG files (giant, but lossless) then running a avifenc ( https://github.com/AOMediaCodec/libavif ) to produce the avif, and trashing the PNG. Decoding though, all browsers have support, it's great.
    comment by borland · 2026-10-12 · in I guess I'm using WebP now?
  3. …not know why this was chosen by the author, but it does not reflect AVIF performance. According to https://github.com/AOMediaCodec/libavif/issues/440#issuecomm... speed preset 8 loses 20-35% compression efficiency.
    comment by unlord · 2024-05-02 · in JPEG XL and Google's War Against It
  4. …PNG: zopflipng https://github.com/google/zopfli/blob/master/README.zopflipn... AVIF: libavif https://github.com/AOMediaCodec/libavif JPG (for backwards compatibility when there's no AVIF): mozjpeg https://github.com/mozilla/mozjpeg
    comment by theandrewbailey · 2024-01-05 · in Ask HN: What's your preferred tool or library for image compression?
  5. …still committing the same mistake[1][2][3]. [1] -- https://code.videolan.org/videolan/dav1d [2] -- https://github.com/AOMediaCodec/libavif [3] -- https://github.com/AOMediaCodec/libiamf Yep. Keep writing these in C; surely nothing will go…
    comment by kouteiheika · 2023-09-12 · in Chrome: Heap buffer overflow in WebP
  6. I stand (partially) corrected: https://github.com/AOMediaCodec/libavif/pull/640
    comment by ajconway · 2023-06-05 · in macOS 14 will support JPEG XL
  7. …but that's a lot of equally heavy hitters. And interesting that Mozilla is there too. ---- 0: https://github.com/AOMediaCodec/libavif
    comment by xoa · 2023-04-16 · in FSF Slams Google over Dropping JPEG-XL in Chrome
  8. …such P/B-frames. Do libavif (or other AVIF implementations if any) make use of them? Seemingly! https://github.com/AOMediaCodec/libavif/blob/main/CHANGELOG.... inclues the notes "Support for progressive AVIFs and operating point selection"…
    comment by CharlesW · 2022-12-11 · in JPEG XL support has officially been removed from Chromium
  9. …height="129"> </picture> [1]: https://github.com/sandreas/shrivel [2]: https://pilabor.com [3]: https://github.com/AOMediaCodec/libavif/issues/1034
    comment by sandreas · 2022-08-31 · in Losslessly Optimising Images
  10. Where can one get a linkable library for AVIF? got it: https://github.com/AOMediaCodec/libavif
    comment by bsenftner · 2022-03-11 · in AVIF has landed (2020)
  11. …4:2:0. There is a small size hit for 4:4:4, but edges around saturated colors is much better. [0] https://github.com/AOMediaCodec/libavif
    comment by theandrewbailey · 2021-09-29 · in Dithered images and websites (2020)
  12. …https://jpeg.org/jpegxl/ https://gitlab.com/wg1/jpeg-xl https://aomediacodec.github.io/av1-avif/ https://github.com/AOMediaCodec/libavif https://caniuse.com/avif
    comment by theandrewbailey · 2020-10-01 · in BPG Image Format
  13. …4:2:0 and it looked horrible, but the size hit for 4:4:4 wasn't bad and looked much better. [0] https://github.com/AOMediaCodec/libavif
    comment by theandrewbailey · 2020-06-23 · in Is WebP really better than JPEG?
  14. …tried it out, and it's amazing. https://netflixtechblog.com/avif-for-next-generation-image-c... https://github.com/AOMediaCodec/libavif
    comment by theandrewbailey · 2020-06-23 · in Is WebP really better than JPEG?