Backup diff of AVIF(No. 10)

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TITLE:AV1 Still Umage File Format (AVIF)
[[AOMedia]] > [[AV1]] > [[AVIF]]


* 公式 [#official]

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

* 表示 [#j7b6cdda]

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

* テスト画像 [#ffebdf68]

- 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 [#f8d30ea5]

**  ライブラリ [#ge4132a1]

- 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

** JavaScript [#i1e9fa18]

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

** Golang [#q5deab91]

- https://github.com/Kagami/go-avif

* 解説 [#h239cc49]
- AV1 Image File Format (AVIF)
--  https://people.xiph.org/~negge/AVIF2018.pdf


* その他  [#q1b06620]


- 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/

* 関連 [#p06b90c7]

- [[HEIF]]
Backup diff of AVIF (No. 10)
