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JPEG XL decoding support (image/jxl) in blink

Category

Multimedia

Type

New or changed feature

Status

Proposed (Chrome Proposed)

Intent stage

None

Summary

Adds support for decoding JPEG XL (image/jxl) images in Blink using jxl-rs, a memory-safe pure Rust decoder (https://github.com/libjxl/jxl-rs). JPEG XL is a modern image format standardized as ISO/IEC 18181 that offers progressive decoding for improved perceived loading performance, support for wide color gamut, HDR, and high bit depth, and support for animation.

Motivation

(see Summary)

Standards & signals

• Specification: https://www.iso.org/standard/85066.html
• Firefox: Shipped/Shipping — also migrating to rust version
• Safari: Shipped/Shipping — WebKit currently uses the C++ decoder.
• Web developers: Strongly positive

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