Creating Objective-C wrappers for Swift implementation

Nolaine Crusher nolainecrusher at gmail.com
Wed Mar 25 23:34:24 GMT 2020


Thank you so much, that would be amazing! If I can help, just let me know!

On Wed, Mar 25, 2020 at 4:33 PM Ryan Francesconi <rowingatsea at gmail.com>
wrote:

> I created a taglib wrapper for swift. If i can clean it up soon, I will
> post it for you!
>
> Ryan
>
> On Mar 25, 2020, at 3:18 PM, Nolaine Crusher <nolainecrusher at gmail.com>
> wrote:
>
> Hi.
>
> I've only been coding for about six months, and that's in Swift. Before
> that, I knew so little about coding that even using command line apps could
> pose a very daunting challenge for me.
>
> However, the project I'm working on involves using metadata to curate
> audiobook libraries. For now I'm limiting the formats my app will support
> to .mp3, .aac(.m4b), and .flac. This is posing a number of challenges.
>
> 1) ffmpeg's support for metadata in general, and more obscure metadata
> tags in particular, is very limited.
> 2) AVFoundation, while it appears willing to read .mp3 metadata, won't
> export an .mp3 file on passthrough settings after editing metadata. And it
> doesn't deal with FLAC at all.
>
> For obvious reasons, TagLib is my best bet. But I don't know C++. Or even
> Objective-C.
>
> I found this build of TagLib (https://github.com/Phisto/TagLib) for
> MacOS, and I found these Objective-C wrappers (
> https://github.com/BTRLabs/TagLibIOS) to make TagLib usable in Swift.
> (however, the wrappers are for IOS, and the project itself is a CocoaPod
> and I sort of hate the way CocoaPods takes over your project.) Between the
> two, I was able to cobble together a sort of Franken-code project that
> would work for MacOS without relying on CocoPods, which I'm calling
> TagLibKit:
>
> https://github.com/NCrusher74/TagLibKit
>
> However, that's about as far as my monkey-see/monkey-do attempt at
> emulating the code in the wrappers will take me. And unfortunately, it's
> not far enough, because the TagLibIOS wrappers only wrap the text-based ID3
> frames. It will handle Comments, USLT, and IPLS/TIPL frames, but not CHAP
> and CTOC frames. And since I'm dealing with Audiobooks, chapters would be a
> good thing to have. Admittedly, most people just separate their chapters by
> file, but that's because not a lot of apps support chaptered MP3 and that
> is one of the things I'm hoping to correct with my project.
>
> I'm more than willing to do the work myself, but like I said, I don't know
> C++ or ObjectiveC, so at the very least I would need a mentor who knows
> TagLib and would be willing to guide me into figuring out what I need to do.
>
> Could anyone advise me on this?
>
>
>
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