libavif: This library aims to be a friendly, portable C implementation 
libavif: of the AV1 Image File Format, as described here:
libavif: <https://aomediacodec.github.io/av1-avif/>
libavif: 
libavif:
libavif: 
libavif: 
libavif: 
libavif:
libavif: 
libavif: