[PATCH] Output AAC as M4A for iTunes with metadata tags

[bat guano]

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> This does not work for my Marantz player.
>
> I still think the problem with ffmpeg has not been completely solved:-
>
@ Richard
In the ffmpeg git commit, it says:-
"In ipod/mov/mp4 muxer, always write esds descriptor length using 4 bytes, ipod shuffle doesn't support anything else."

So maybe there is another fix needed for the Marantz player.

Here:- http://git.videolan.org/?p=ffmpeg.git;a=commit;h=93dfda88968c5e4d3f596f35a446fb7c238e96b2