SBIX table entry format of AppleColorEmojie

Hi,


does anyone know what the format of the SBIX table entries of the AppleColorEmoji font is?

According to the docs https://developer.apple.com/fonts/TrueType-Reference-Manual/RM06/Chap6sbix.html

the only values for the 'graphicType' table member can be 'jpeg', 'png', 'pdf' or 'tiff'.


However, when going through the SBIX table of the AppleColorEmoji font the graphicsType has the value 'emjc'.

If I dump the data of an entry, I can see the lzfse header, so I guess it's a compressed format. I tried uncompressing the data with the lzfse open source library https://github.com/lzfse/lzfse but that didn't work.


Anybody else here might know something?


Greetings,

Felix.

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Did you find out about about the encoding? Just came accross the "emjc" graphic type myself.


I found this decoder in C but did not try it yet: https://github.com/cc4966/emjc-decoder/blob/master/src/sbix_emjc_decode.c

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klaas
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