This format description is primarily for HEIF files with the brands heic or heix either as major brand or a compatible brand. Also in the ftyp box is a list of brand codes identifying brands which with the file is declared to be compatible. An ISO_BMFF file type is defined by the major brand, which comes first in its ftyp box. The ISO_BMFF mechanism for distinguishing among file types is based on 4-character codes known as brands brands are registered at. This format description focuses on a subset of HEIF image types using HEVC encoding, with an emphasis on what the compilers of this resource have learned about implementations in cameras and mobile devices as of November 2020. The initial specification for HEIF provided usage details for three compression schemes, the widely supported JPEG encoding for still raster images and two video encodings that are also applicable to still image items, namely Advanced Video Coding ( AVC, aka MPEG-4, Part 10 and H.264) and High Efficiency Video Coding ( HEVC aka MPEG-H Part 2 and H.265). HEIF is a special case of the general ISO_BMFF format, in which all data is encapsulated in typed boxes, with a mandatory ftyp box that is used to indicate particular file types. It is designed as a container for photographic images in any image encoding.
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#Copytrans team os iso#
The High Efficiency Image File Format ( HEIF) is an international standard defined by MPEG-H Part 12 (ISO/IEC 23008-12), first published by ISO in 2017.
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High Efficiency Image File Format, HEVC compression encoding, HEIC/HEIX brands