Playlist Support

[JPDSousa]

Static playlists

Basic list of tracks.

Options

• create
• list
• delete
• intersect with playlist: e.g. get all tracks present both in playlists A & B in one (temporary) playlist
  • provide the additional option to output the result to a new playlist
• unite with playlist: e.g. get all tracks present from playlists A & B in one (temporary) playlist
  • provide the additional option to output the result to a new playlist

[JPDSousa]

Dynamic Playlists

Dynamic Playlists (a.k.a. Smart Playlists) are playlists that update themselves automatically.

At implementation level, Dynamic Playlists are in fact database views, so that might be a good way to start.

Options

• create: a dynamic playlists is created through a query;
  • store a mapping from the name of the playlist to the correspondent query;
• freeze: freezing a playlist disables automatic updates
  • at implementation level this means that the dynamic playlist becomes a static playlist, such that its content is stored as a regular playlist;
• unfreeze: undo freeze by deleting the static playlist and return back to playlistsName -> query
• list: executes the correspondent query and returns the result