Re:AVIF – AV1 based image format
by niftich on Tuesday April 10, 2018 @02:05PM
(#16803578)
HEIF is the name of the container [1][2].
HEIC is an ISOBMFF 'brand' to be used inside the container to indicate that the payload's codec is HEVC (in 'Main' profile or 'Main Still Picture' profile), and that it's one still-image and not a sequence [1].
In most of the cases where the payload is the HEVC codec, the corresponding file extension is encouraged to be .heic and the MIME-type follows as well. Apple has a note about this in their transcript at WWDC 2017 [3].
HEIC is an ISOBMFF 'brand' to be used inside the container to indicate that the payload's codec is HEVC (in 'Main' profile or 'Main Still Picture' profile), and that it's one still-image and not a sequence [1].
In most of the cases where the payload is the HEVC codec, the corresponding file extension is encouraged to be .heic and the MIME-type follows as well. Apple has a note about this in their transcript at WWDC 2017 [3].
[1] https://nokiatech.github.io/heif/technical.html [2] https://mpeg.chiariglione.org/standards/mpeg-h/image-file-fo.... [3] https://developer.apple.com/videos/play/wwdc2017/513