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Re: Writing m4a metadata
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Re: Writing m4a metadata


  • Subject: Re: Writing m4a metadata
  • From: Rob Martin <email@hidden>
  • Date: Thu, 5 Mar 2009 11:56:41 -0500

There is a third-party unix tool called 'Atomic Parsley' for writing m4a metadata, which works quite well for me. Although it's pretty old, it works fine - I currently compile for 10.5 only, but it worked for 10.4 too. I use it to add metadata to Apple Lossless files after my app converts aiff's. I call it as an NSTask from Cocoa. The tool spits out a lot of junk, so you have to trap it in a readhandle.

Rob

On Feb 27, 2009, at 12:17 PM, Jens Alfke wrote:


On Feb 27, 2009, at 8:53 AM, William Bates wrote:

Am I correct that this is still not possible with any current API, either Core Audio or QuickTime?
I'm assuming that if I want to do it, it will involve my program adding QTAtoms to the file.... I'm not looking forward to going down this path, so correct me if I'm wrong.

No answers, sorry, just a "me too!" I'm also interested in this.

I suspect this is the kind of thing that would be pretty easy to implement for someone who's already a QuickTime expert, but I certainly don't want to go there. (I've used that API a bit, and it's really hairy.)

—Jens _______________________________________________
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