How can I change metadata in mp3 [closed]

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I would like to add metadata to mp3 files in C/Objective-C (OS X). I found several lib开发者_高级运维raries (e.g. id3lib), but I have no clue on how to compile them. Are there any tutorials on how you can do that? Is there any other framework for C/Objective-C to write ID3 tags to an MP3 file (song name, artist and coverart)?

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Take a look at the id3lib Library Documentation. It provides a quick tutorial.