CHAP and CTOC support

[attilagyorffy]

Hi,

Taglib has added CHAP and CTOC support back in July. It is not in a stable release yet, but I'd be interested in knowing what would it take to add bindings in taglib-ruby. I am not a C++ developer but I'd love to know if this was a lot of effort and if I could help. I don't quite know how one would add native extension support to begin with. Any help would be greatly appreciated.

Thanks,

-- Attila

[jacobvosmaer]

Hi @liquid , thanks for offering your help!

At the moment taglib-ruby is still targeting TagLib 1.7.2. If we add the CHAP/CTOC support now that would prevent taglib-ruby from working with 1.7.2 I think.

cc @robinst

[montekaka]

Do we have any method to add the chapter info?
thanks

[robinst]

@montekaka No, not yet. As for upgrading to a newer minimum version of TagLib, we could upgrade to 1.9.1 (that's in Debian stable now). But CHAP/CTOC were only released in 1.10.

[miyagawa]

Hi, looks like version 1.0.0 of this gem has bumped the TagLib requirement to 1.11, meaning adding CHAP/CTOC isn't a problem wrt its dependency, I suppose.

I would love to be able to tag chapters in my Ruby workflow for podcasts -- currently I'm shelling out to Python3 to use Mutagen.

[neilberkman]

Demo of an MP3 tagged using @iamazeem's code in #103 in Overcast. This uses:

• TableOfContentsFrame
• for each chapter:
  • TextIdentificationFrame for title (TIT2)
  • UserUrlLinkFrame (WXXX) for an external URL
  • AttachedPictureFrame for a chapter image

Repo: https://github.com/neilberkman/chapter-demo

chapter_demo.mov

[iamazeem]

@neilberkman:
Thank you for such an elaborate example! That repo is really helpful!

[robinst]

Thanks @iamazeem, released in 1.1.0 🎉: https://github.com/robinst/taglib-ruby/blob/main/CHANGELOG.md#110---2021-01-20

[razum2um]

Just in case anybody interested in alternatives, see https://github.com/hardcodefm/ruby-mp3info or PR

Also, test example, real-world example