Download Spotify tracks to Ogg Vorbis (with a premium account).
This program uses librespot, and as such, requires a Spotify Premium account to use. It supports downloading single tracks and episodes, but also entire playlists, albums and shows.
To download a number of links as <artist(s)> - <title>.ogg, run
oggify "spotify-premium-user" "spotify-premium-password" < link_list
Oggify reads from standard input and looks for a URL or URI in each line, and checks whether it is a valid Spotify media link. If it is not valid, it will be ignored.
The two formats are those you get with the menu items
"Share → Copy Link" or "Share → Copy URI" in the Spotify client,
for example
open.spotify.com/track/1xPQDRSXDN5QJWm7qHg5Ku
or
spotify:track:1xPQDRSXDN5QJWm7qHg5Ku.
Once you close the standard input or write "done" into it,
it will start downloading all tracks and episodes in order of input
into your current working directory.
A second form of invocation of oggify is
oggify "spotify-premium-user" "spotify-premium-password" "helper_script" < link_list
In this form helper_script is invoked for each new track:
helper_script "spotify_id" "title" <album> "cover_art_url" "artist1" ["artist2"...] < ogg_stream
The script tag_ogg in the source tree can be used to automatically add the track information (spotify ID, title, album, artists) as vorbis comments.
The script uses ogg-image-blobber for cover art encoding.
Don't do that, please. You will just lose quality. If you want to do it anyway:
Use oggify with the tag_ogg helper script as described above, then convert with ffmpeg:
for ogg in *.ogg; do
ffmpeg -i "$ogg" -map_metadata 0:s:0 -id3v2_version 3 -codec:a libmp3lame -qscale:a 2 "$(basename "$ogg" .ogg).mp3"
done