Backup of AVIF (No. 23)

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AOMedia > AV1 > AVIF

公式

• https://aomediacodec.github.io/av1-avif/
  • https://github.com/AOMediaCodec/av1-avif
  • https://github.com/AOMediaCodec/av1-avif/wiki

• https://github.com/AOMediaCodec/libavif

• AV1/Config av1C

表示

• https://cconcolato.github.io/wasm-av1/

テスト画像

• AVIF test file collection from Microsoft.
  • https://github.com/AOMediaCodec/av1-avif/tree/master/testFiles/Microsoft

• Netflix - AV1 / Chimera / AVIF
  • http://download.opencontent.netflix.com/?prefix=AV1/Chimera/AVIF/

ソフトウエア

ブラウザ

• https://chromium-review.googlesource.com/c/chromium/src/+/2101317
• https://bugzilla.mozilla.org/show_bug.cgi?id=1625363

ライブラリ

• libheif
• https://github.com/AOMediaCodec/libavif

• Port of the AV1 Video codec to WebAssembly
  • https://github.com/GoogleChromeLabs/wasm-av1

• https://www.microsoft.com/en-us/p/av1-video-extension-beta/9mvzqvxjbq9v?activetab=pivot:overviewtab

Rust

• https://github.com/kornelski/cavif

JavaScript

• AVIF polyfill for the browser
  • https://github.com/Kagami/avif.js

Golang

• https://github.com/Kagami/go-avif

解説

• AV1 Image File Format (AVIF)
  • https://people.xiph.org/~negge/AVIF2018.pdf

HEIF

• HEIFとAVIF：画像と写真のフォーマットと違い
  • https://itigic.com/ja/heif-and-avif-image-photography-formats-differences/

WebP

• Comparing AVIF vs WebP file sizes at the same DSSIM
  • https://www.ctrl.blog/entry/webp-avif-comparison.html

その他

• AVIFを試す
  • https://wave.hatenablog.com/entry/2019/09/07/080800

    % ffmpeg -r 1 -i INFILE -c:v libaom-av1 -g 1 -frames 1 -crf CRFVALUE -b:v 0 -an -strict experimental -y OUTFILE.mp4

    % mp4box -add-image OUTFILE.mp4:time=0 -brand avif OUTFILE.avif

• Photo format from Google and Mozilla could leave JPEG in the dust
  • https://www.cnet.com/news/google-mozilla-av1-photo-format-could-outdo-aging-jpeg/

• 次世代動画コーデック「AV1」の圧縮技術を利用する次世代画像フォーマット「AVIF」
  • https://gigazine.net/news/20180411-avif-draft/

• AVIF for Next-Generation Image Coding
  • https://netflixtechblog.com/avif-for-next-generation-image-coding-b1d75675fe4

• http://www.dma.ufg.ac.at/assets/25279/vh1_S.pdf

• How to Use AVIF: The New Next-Gen Image Compression Format
  • https://reachlightspeed.com/blog/using-the-new-high-performance-avif-image-format-on-the-web-today/

関連

• ISOBMFF - MiAF
• CMAF
• HEIF