I want to take advantage of HEIF's benefits on Windows. I feel I've done quite a bit of searching and I find a lot about opening HEIF files on Windows and converting from HEIF to JPG. I can't find anything about converting a popular lossless type (BMP, PNG, GIF) to a HEIF.
Is there a library (or available application) that can convert from a popular lossless type to HEIF on Windows?