TITLE:AV1 Still Image 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 - https://github.com/AOMediaCodec/libavif *. [#l0799fc1] - [[AV1]] (動画エンコード。AVIF はこれの I フレームを用いる) - [[ISOBMFF]] (コンテナ形式。HEIF とほぼ殆ど同じ。av1C が異なる。HEIF は hvcC) -- [[AV1/Config]] av1C * 表示 [#j7b6cdda] - https://cconcolato.github.io/wasm-av1/ * テスト画像 [#ffebdf68] - AVIF test file collection -- https://github.com/AOMediaCodec/av1-avif/tree/master/testFiles --- 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] ** ブラウザ [#w0745299] - https://caniuse.com/avif ** Chrome [#hfcf1900] - https://chromium-review.googlesource.com/c/chromium/src/+/2101317 > Add support for decoding the AV1 image format (AVIF). - https://developer.android.com/about/versions/12/features > Android 12 introduces support for images that use the AV1 Image File Format (AVIF). ** Mozilla [#gc3bd748] - https://bugzilla.mozilla.org/show_bug.cgi?id=1625363 > AVIF (AV1 Image File Format): experimental support ** Safari [#j115beaa] - https://trac.webkit.org/wiki/WebKitGoalsfor2020 (WebKit: no support for AV1 and AVIF seems planned any time soon) ** ライブラリ [#library] - [[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 [#e4296975] - https://github.com/kornelski/cavif ** 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 * HEIF [#wc3527f5] - 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 [#tf1d7e9e] - Comparing AVIF vs WebP file sizes at the same DSSIM -- https://www.ctrl.blog/entry/webp-avif-comparison.html * 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/ - 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/ - AVIF 入りの ImageMagick をビルドする -- https://zenn.dev/tan_y/articles/a8891b9cd4ba0b - Cloudflare adding support for AVIF image format -- https://www.reddit.com/r/AV1/comments/j4f2ea/cloudflare_adding_support_for_avif_image_format/ * 関連 [#p06b90c7] - [[ISOBMFF]] - [[MiAF]] - [[CMAF]] - [[HEIF]] |