[Bug] Normal .m3u playlist import does not work

[CodingSamS]

Description

Importing a normal .m3u playlist results in an empty playlist. However, importing an extended .m3u playlist does work.

Non-working .m3u playlist:

/storage/emulated/0/Music/Music Library/Secret Service/Oh Susie/01 Ten O'Clock Postman.m4a

Working .m3u playlist:

#EXTM3U


#EXTINF:0,01 Ten O'Clock Postman.m4a
/storage/emulated/0/Music/Music Library/Secret Service/Oh Susie/01 Ten O'Clock Postman.m4a

Steps to Reproduce

1. Go to Playlists Tab
2. Click on "Import Playlist"
3. Import the .m3u file
4. After Import look into playlist
5. Result: The playlist is empty

Expected Behavior

The playlist should contain the tracks mentioned in the .m3u file.

Device

• Device: Google Pixel 6a
• OS: Graphene OS with Android 14

Checklist

• I have read the Contribution Guidelines.

[zyrouge]

I've never seen the non-extended format being used. That said, this is easy to implement but parsing extended format is more secure since it is structured. Is there any specification about the non-extended one?

[CodingSamS]

According to Wikipedia there is no specification - it's a de facto standard.

https://en.m.wikipedia.org/wiki/M3U

But it is simple - only absolute paths, relative paths and URLs.

[CodingSamS]

I found a pretty good summary of the format here:

https://gonze.com/playlists/playlist-format-survey.html#M3U