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<pre class='metadata'> | ||
Group: AOM | ||
Status: FD | ||
Text Macro: SPECVERSION v1.1.0 | ||
Status: WGD | ||
Text Macro: SPECVERSION v1.2.0 | ||
Title: AV1 Image File Format (AVIF) | ||
URL: https://AOMediaCodec.github.io/av1-avif/v1.1.0.html | ||
!Latest version: <a href="https://AOMediaCodec.github.io/av1-avif">https://AOMediaCodec.github.io/av1-avif</a> | ||
!Previously approved version: <a href="v1.0.0.html">v1.0.0</a> | ||
URL: https://AOMediaCodec.github.io/av1-avif | ||
Shortname: av1-avif | ||
Editor: Cyril Concolato, Netflix, [email protected] | ||
Editor: Yannis Guyon, Google, [email protected] | ||
Former Editor: Cyril Concolato, Netflix, [email protected] | ||
Former Editor: Paul Kerr, Netflix, [email protected] | ||
Former Editor: Anders Klemets, Microsoft, [email protected] | ||
Abstract: This document specifies syntax and semantics for the storage of [[!AV1]] images in the generic image file format [[!HEIF]], which is based on [[!ISOBMFF]]. While [[!HEIF]] defines general requirements, this document also specifies additional constraints to ensure higher interoperability between writers and readers when [[!HEIF]] is used with [[!AV1]] images. These constraints are based on constraints defined in the Multi-Image Application Format [[!MIAF]] and are grouped into profiles inspired by the profiles defined in [[!MIAF]]. | ||
Date: 2022-04-15 | ||
Date: 2024-06-25 | ||
Repository: AOMediaCodec/av1-avif | ||
Text Macro: ADDITIONALLOGO https://aomedia.org/assets/images/avif-logo-rgb.svg | ||
!Previously approved version: <a href="v1.1.0.html">https://aomediacodec.github.io/av1-avif/v1.1.0.html</a> | ||
!Latest approved version: <a href="latest-approved.html">https://aomediacodec.github.io/av1-avif/latest-approved.html</a> | ||
!Latest draft version: <a href="latest-draft.html">https://aomediacodec.github.io/av1-avif/latest-draft.html</a> | ||
Metadata Order: This version, !*, * | ||
</pre> | ||
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<p>The media type <code>"image/avif"</code> is officially registered with IANA and available at: <a href="https://www.iana.org/assignments/media-types/image/avif">https://www.iana.org/assignments/media-types/image/avif</a>.</p> | ||
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<h2 id="change-list">Changes since v1.0.0 release</h2> | ||
- <a href="https://github.com/AOMediaCodec/av1-avif/pull/147">Constrain image sequence to one sample description entry and constant sequence header.</a> | ||
- <a href="https://github.com/AOMediaCodec/av1-avif/pull/145">Clarify ispe semantics.</a> | ||
- <a href="https://github.com/AOMediaCodec/av1-avif/pull/144">Update use of essential field for av1C.</a> | ||
- <a href="https://github.com/AOMediaCodec/av1-avif/pull/138">Clarify that constraints on still picture flags apply to non-layered images.</a> | ||
- <a href="https://github.com/AOMediaCodec/av1-avif/pull/130">Clarify in-profile and out-of-profile restrictions.</a> | ||
- <a href="https://github.com/AOMediaCodec/av1-avif/pull/127">Replace Media Type section with link to IANA official registration.</a> | ||
- <a href="https://github.com/AOMediaCodec/av1-avif/pull/118">Define properties for layered images to allow selective or progressive decoding of layers.</a> | ||
- <a href="https://github.com/AOMediaCodec/av1-avif/pull/125">Add restriction on transformative properties in derivation chains.</a> | ||
- <a href="https://github.com/AOMediaCodec/av1-avif/pull/114">Extend semantics of avio brand to image items and clarify brand usage.</a> | ||
- <a href="https://github.com/AOMediaCodec/av1-avif/pull/113">Clarify image sequence constraints in profile definitions.</a> | ||
- <a href="https://github.com/AOMediaCodec/av1-avif/pull/116">add support for the ContentColourVolumeBox property.</a> | ||
- <a href="https://github.com/AOMediaCodec/av1-avif/pull/112">Remove wrong recommendations regarding still picture flags in image sequences.</a> | ||
- <a href="https://github.com/AOMediaCodec/av1-avif/pull/101">constrain auxiliary images to be full range, and ignore colr for alpha planes.</a> | ||
- <a href="https://github.com/AOMediaCodec/av1-avif/pull/100">Rephrase statement about auxiliary images and profiles.</a> (Editorial change) | ||
- <a href="https://github.com/AOMediaCodec/av1-avif/pull/86">Remove the definition of the image/avif-sequence MIME type.</a> | ||
- <a href="https://github.com/AOMediaCodec/av1-avif/pull/85">Adding bitdepth constraint for alpha and master images.</a> | ||
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<h2 id="change-list">Changes since v1.1.0 release</h2> |
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v1.1.0.html |
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index.html |