Starting with version 4.7 (changelog), the Subsonic Music Streamer no longer saves playlists as .m3u files but stores the playlist information in its internal database to offer a more sophisticated playlist management (like shared and private playlists).
Before version 4.7 it was very easy to share the Subsonic playlists with other media servers that also use a directory containing .m3u files as data source (like the Logitech Media Server): Sharing a folder containing the .m3u files automatically synchronizes the playlists between the media servers.
Fortunately, the Subsonic media server offers a very well documented REST API that can be used to export playlist information amongst a lot of other functionalities.
To easily export all playlists from the Subsonic media server and save them as .m3u files in a specific destination directory I’ve written the SubsonicTools project which is available here (GitHub).
To export all playlist with SubsonicTools use the following command:
python SubsonicTools.py ExportPlaylists --url=[SUBSONIC-URL] --user=[YOUR-SUBSONIC-USER] --password=[YOUR-SUBSONIC-PASSWORD] --out=[PATH-TO-DESTINATION-DIRECTORY] --prefix=[FILE-PREFIX]
Please note: The SubsonicTools project is in a prototype state; it was only tested with Python 2.7 and a Subsonic media server 4.7. If you find any errors, miss a feature or have any suggestions please don’t hesitate to leave a comment or to send me a private message.