[CentOS] AAC in .m4a command line tagging ???

Hi All,

Software patents suck but but unfortunately for speech, MP3 (also still patented until end of next year) also sucks - for html5 audio served to iPhones where Safari doesn't support Ogg Opus and where bandwidth may be limited, AAC is a very attractive option.

I have an AAC encoding solution for Linux but I don't have a way to tag them.

Anyone know of Linux command-line tagger for .m4a files that produces tags that will work in iTunes? Preferably one that allows addition of album art as well as text tags. Something like eyeD3 (python script) would be great.

Has to be command line so it can be automated on a server that does the transcoding.

Thanks for suggestions.