Re: Getting AAC tag information
Re: Getting AAC tag information
- Subject: Re: Getting AAC tag information
- From: Sven <email@hidden>
- Date: Wed, 14 Oct 2009 08:21:15 +0000 (UTC)
On Tue, 13 Oct 2009, Jens Alfke wrote:
On Oct 13, 2009, at 9:30 AM, Sven wrote:
Thanks... I don't want to encode any audio files, I merely want to be able
to get and set tag data. For MP3s I can use id3lib no problems, but that
doesn't help me with AAC files. I guess if there's no way to edit tags via
the Apple libraries (if I understand you correctly) then the only thing
left to do is write my own.
You can get tags via QuickTime. The problem is that changing tags, in
general, requires re-writing the entire file. I think QuickTime could be used
to update those tags along the way, if it were reading the file contents and
writing them out to a new file, but I don't know nearly enough about the very
gnarly QuickTime APIs for that.
There is an open source project called AtomicParsely that is supposed to help
with parsing and generating AAC metadata, but I haven't used it.
?Jens
I saw AtomicParsely and they do a good job of describing the weird and
wonderful structure of atoms in m4a's.... I'll have a closer look at their
library and see what can be done. Otherwise I'll have to stick with just
ID3 support for now until I can get my head around tagging AACs
thanks again
./Sven
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