missingcore / audio-metadata Goto Github PK

File Extension

.mp4 & .m4a

Metadata Format

MPEG-4 Part 14

Documentation / References

• https://developer.apple.com/documentation/quicktime-file-format
• https://exiftool.org/TagNames/QuickTime.html#ItemList
• https://web.archive.org/web/20091024221536/http://geocities.com/xhelmboyx/quicktime/formats/mp4-layout.txt
• https://en.wikipedia.org/wiki/MP4_file_format

Other Notes

Context on file format: https://nothing.community/d/12384-music-open-source-offline-music-player/8

• Seems like .mp4 & .m4a share the same file structure. .mp4 have both video & audio while .m4a only has audio.

Package Version

v1.2.0

Are the dependencies being used satisfy the minimum specification?

Yes

Summary

Someone seems to be having issues with saving some of their .mp3 files on the Music app. They have 80 songs, only 4 were detected.

I'm wondering if the problem is that they have a different metadata container like APE?

Another problem is that he says it took about 10 minutes to get through that process, which seems wrong.

This might point to a different potential issue which is maybe their tracks uses unsynchronization, which isn't tested thoroughly and it might be performance hitting.

Minimal reproducible example

n/a

Summary

Expo has recently merged a PR bringing support for TextDecoder (only the UTF-8 portion).

• https://github.com/expo/expo/pull/29620
• Expo Documentation on Encoding API

Package Version

v1.2.0

Are the dependencies being used satisfy the minimum specification?

Yes

Summary

User has verified that the cover art is detected in other music apps correctly, however in our app, it's not found.

Looking at the file in Mp3tag, we see the cover is labeled as "Cover (Front)", which is what we should detect and return in our ID3v2Reader, however, it isn't.

Minimal reproducible example

n/a