avifenc
AV1 Image File Format (AVIF) encoder. More information: https://aomediacodec.github.io/av1-avif/.
- Convert a specific PNG image to AVIF:
avifenc {{path/to/image.png}} {{path/to/image.avif}}
- Encode with a specific speed, where 0=slowest, 10=fastest, and 6=default:
avifenc --speed {{2}} {{path/to/image.png}} {{path/to/image.avif}}