(registered 2021-01-28, last updated 2021-01-28) Name: Cyril Concolato Email: cconcolato&netflix.com Media type name: image Media subtype name: avif Required parameters: None. Optional parameters: codecs: As specified in image/heif Media Type Registration profile: As specified in image/heif Media Type Registration itemtypes: As specified in image/heif Media Type Registration Encoding considerations: binary as for image/heif or image/heif-sequence Security considerations: See section 4 of RFC 4337 and section 7 of RFC 6381. This format does not supply integrity or confidentiality protection and so they are applied externally when needed. The security considerations of URLs are discussed in RFC 3986. Interoperability considerations: The AVIF specification is based on a set of specifications (AV1, ISOBMFF, HEIF, MIAF) and builds upon their interoperability considerations. Further more, AVIF defines specific constraints and signals them with specific code points to improve interoperability between readers and writers of AV1 content. Published specification: https://aomediacodec.github.io/av1-avif/ Applications which use this media: Multimedia, Imaging, Pictures Fragment identifier considerations: Fragment identifiers are specified in Annex C of ISO/IEC 14496-12:2020, available at https://www.iso.org/standard/74428.html. Restrictions on usage: None Additional information: 1. Deprecated alias names for this type: none 2. Magic number(s): none 3. File extension(s): avif, heif, heifs or hif 4. Macintosh file type code: none 5. Object Identifiers: none General Comments: Person to contact for further information: 1. Name: Cyril Concolato 2. Email: cconcolato&netflix.com Intended usage: Common Author/Change controller: The published specification is a work product of the Alliance for Open Media, http://aomedia.org.