@ -4,4 +4,6 @@
[HEIF reference implementation from Nokia](https://github.com/nokiatech/heif)
[AVIF reference implementation](http://gitlab.com/AOMediaCodec/SVT-AV1)
[Apple's metadata syntax in HEIC images](http://cheeky4n6monkey.blogspot.com/2017/10/monkey-takes-heic.html)