AVIF image serializer

Minimal writer for AVIF header structure. This is a tiny alternative to libavif. It creates the jungle of MPEG/HEIF/MIAF/ISO-BMFF "boxes" as appropriate for AVIF files. Supports alpha channel embedding.

Compatible with decoders in Chrome 85, libavif v0.8.1, and Firefox 81a.

Together with rav1e it allows pure-Rust AVIF image encoding.

Requirements

• Rust 1.45

Usage

1. Compress pixels using an AV1 encoder, such as rav1e. libaom works too.

2. Call avif_serialize::serialize_to_vec(av1_data, None, width, height, 8)