AVIF image format supported by Cloudflare Image Resizing

What this post added

Introduced support for the AVIF image format in Cloudflare Image Resizing. AVIF offers superior compression compared to JPEG and WebP, reducing image file sizes by up to 50%. This is achieved by utilizing the AV1 codec and HEIF container. The implementation uses the rav1e Rust encoder. The post details the benefits of AVIF, its technical underpinnings, browser adoption status, and provides examples of how to enable it via the `format=avif` option and within Cloudflare Workers for automatic format negotiation based on the `Accept` header.