cmus/cmus — pull request #82 by mahkoh (2013-12-03 17:41:48+00:00)
Title: use mp4 genreType if necessary

I don't know if `*tags->genreType - 1` is actually the correct way to do this but it worked for the one file from #80. There is also a field called `genreID` which might or might not be used by some files. I couldn't find any mp4v2 docs on these fields.