Workaround for broken(?) m4a files from ffmpeg, was Re: [PATCH] Output AAC as M4A for iTunes with metadata tags

[Simon Nash]

dinkypumpkin wrote:
> On 12/04/2011 21:40, richard wrote:
>> I'm struggling to understand all this analysis of atoms etc. What
>> software are you using to carry out your tests and determine what is
>> going on?
> 
> If you're on ubuntu and you have mp4tags, then you've probably installed 
> the mpeg4ip-utils package (or similar - that's what it's called on 
> Maverick).  If so, you'll have utility called mp4dump which can print 
> out a more-or-less readable representation of the MP4 atom tree in a file.
> 
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> 
Thanks for the pointer.  I wasn't aware of mp4dump, so I have been reading
these files the hard way using a hex editor and the ISO specs.  This will
make things much easier.

   Simon