Thank you for your self-important, condescending and insulting ten-point bulleted response to my offer of sharing some code.

I was unaware that ScummVM had its own built-in SMK decoder.

So... I wrote this: http://libsmacker.sourceforge.net/ It's a C library which can decode Smacker files. I know some ScummVM games have .smk videos, and this could be a snap-in solution to get those playing. A good alternative to linking against libavcodec, for example. The license is Creative Common...