HEIF (High Efficiency Image File Format)

H.265/HEVC | FileFormat > ImageFormat > HEIF

公式

MPEG

• https://mpeg.chiariglione.org/standards/mpeg-h/image-file-format
  • http://mp4ra.org/
• ISO / IEC 23008-12
  • https://www.iso.org/standard/66067.html (有料)
  • http://mpeg.chiariglione.org/standards/mpeg-h/image-file-format/draft-text-isoiec-fdis-23008-12-carriage-still-image-and-image
    • w15234-image-FF-draft-FDIS-cover

• Draft
  • https://mpeg.chiariglione.org/standards/mpeg-h/image-file-format/draft-text-isoiec-fdis-23008-12-carriage-still-image-and-image (https://mpeg.chiariglione.org/meetings/111)

Nokia

• http://nokiatech.github.io/heif/index.html
  • http://nokiatech.github.io/heif/technical.html
  • https://github.com/nokiatech/heif
    • https://github.com/nokiatech/heif/tree/gh-pages/js

• 開発者
  • https://www.linkedin.com/in/emre-baris-aksu-8100245/
  • https://www.linkedin.com/in/lasseheikkila/ (Vincit)
  • https://www.linkedin.com/in/vinodmv/

Apple

• Working with HEIF and HEVC
  • https://developer.apple.com/videos/play/wwdc2017/511/ (slide)
• High Efficiency Image File Format
  • https://developer.apple.com/videos/play/wwdc2017/513/ (slide)
• Capturing Depth in iPhone Photography
  • https://developer.apple.com/videos/play/wwdc2017/507/ (slide)

仕様

• Technical information
  • http://nokiatech.github.io/heif/technical.html (isobmff.png)
• LASSE HEIKKILÄ HIGH EFFICIENCY IMAGE FILE FORMAT IMPLEMENTATION
  • https://dspace.cc.tut.fi/dpub/bitstream/handle/123456789/24147/heikkila.pdf

• Overview of the High Efficiency Image File Format
  • http://phenix.int-evry.fr/jct/doc_end_user/current_document.php?id=10265

    JCTVC-V0072.doc

• auxC
• https://www.itscj.ipsj.or.jp/sc29/open/29view/29n15691t.doc

  'urn:mpeg:hevc:2015:auxid:xxx' (where xxx is a positive integer), as specified in H.2.5, an HEVC SEI message describing the auxiliary image sequence should be included in the sample entry.

バイナリ形式

• HEIF/Box

• High Efficiency Image File Format - WWDC 2017
  • https://developer.apple.com/videos/play/wwdc2017/513/ (PDF) (cache)

• http://biblio.telecom-paristech.fr/cgi-bin/download.cgi?id=15849

プログラム

• H.265/HEVC コーデック > H.265#impl

ツール

• libheif
  • python binding: pyheif

• GPAC support for HEIF
  • https://gpac.wp.imt.fr/2017/06/09/gpac-support-for-heif/
    • GPAC - MP4Box

• JPEG =(ffmpeg + x265)=> HEVC =(MP4Box)=> HEIF(.heic)

% ffmpeg -i test.jpg -loglevel warning  -pix_fmt yuv420p -vcodec libx265 -f hevc \
                -x265-params log-level=1 -crf 12 -preset slower test.hevc
% MP4Box -add-image test.hevc -quiet -ab heic -new test.heic

• VLC (modules/demux/mp4/heif.c)

• ダンプ

MP4Box -std -diso test.heic > test.heic.xml

• JPEG =(ffmpeg + x265)=> HEVC =(IO_HEIF)=> HEIF(.heic)

ライブラリ

• https://github.com/nokiatech/heif

• https://github.com/yohhoy/heifreader

• https://github.com/monostream/tifig (nokiatech のライブラリを使ってるだけ)

JavaScript

• https://github.com/nokiatech/heif/wiki/IV.-HEIF-Reader-JavaScript-Implementation

商用

• ソニー、「α7S III」のHEIF写真を、JPEG・TIFFに変換するアプリ
  • https://av.watch.impress.co.jp/docs/news/1276889.html
    • https://support.d-imaging.sony.co.jp/app/heif/ja/

サンプル画像

• https://github.com/nokiatech/heif/tree/gh-pages/content/images
• http://download.tsi.telecom-paristech.fr/gpac/MPEG/ISOBMFF-Conformance/heif/
• http://download.tsi.telecom-paristech.fr/gpac/MPEG/IFF/Conformance/ (説明)

• https://strukturag.github.io/libheif/
  • https://strukturag.github.io/libheif/example.heic

• only 1 image converted from multiple image HEIC format #1391
  • https://github.com/ImageMagick/ImageMagick/issues/1391 Jupiter.heic (dynamic wallpaper)

ライセンス問題

• HEVC#license

その他

• HEIF/Windows

• http://fileformats.archiveteam.org/wiki/HEIF

• 「HEIF」ってなに？高画質で軽量化！iOS11から変わるiPhone写真の保存形式を調べてみた
  • http://photolog.aiko15.com/10141/

• macOS 10.13であらたにサポートされたHEIF画像をJPEGに変換
  • http://piyocast.com/as/archives/4851

• https://linustechtips.com/main/topic/791592-apple-abandons-jpeg-in-favor-of-heifhevc/
• Apple Abandons JPEG In Favor of HEIF/HEVC
  • https://linustechtips.com/main/topic/791592-apple-abandons-jpeg-in-favor-of-heifhevc/

yohhoy

• https://github.com/yohhoy/heic2hevc
• お手軽なHEIFファイルの作成・表示方法
  • https://qiita.com/yohhoy/items/fac992c335fa4fbbbbea
• H.265/HEVC特許暗黒時代
  • https://qiita.com/yohhoy/items/c2579097a507b1fbdddb

• https://github.com/exif-heic-js/exif-heic-js

yoya

• HEIF 解説 〜コンテナ構造の実際〜
  • https://speakerdeck.com/yoya/heif-kaisetsu
• 2018-01-25/HEIF

関連

• MPEG
• BPG
• MP4Box
• FFmpeg