Make Non-Stop Pop FM mp3 files from YouTube

nspfm.rb

# This is a Ruby script to split the downloaded YouTube audio track into separate files
#
# 1. Download Non-Stop-Pop-FM.png from http://gta.wikia.com/wiki/File:Non-stop-pop.png
# 2. Download YouTube video "Non-Stop-Pop FM - GTA V Radio (Next-Gen)" using this command:
#    youtube-dl -f 140 'https://www.youtube.com/watch?v=LGL50O1iBY0'
# 3. You may also need to increase the volume of original audio track:
#    ffmpeg -i Non-Stop-Pop-FM.m4a -af 'volume=17.5dB' Non-Stop-Pop-FM.mp3
# 4. mkdir done
# 5. ruby nspfm.rb > nspfm.sh
# 6. bash nspfm.sh

def to_secs(input)
  m = input.match('^((\d+):)?(\d+):(\d+)$')
  m[1].to_i * 60 * 60 + m[3].to_i * 60 + m[4].to_i
end

def convert(src)
  from = 0
  src.lines.each do |line|
    m = line.match('^\s+-\s+((\d+:)?\d+:\d+)\s+(.*)$')
    next if m.nil?
    name = m[3]
    to = to_secs(m[1])
    if name != "None" then
      info = name.match('^\d+\.\s+(.+?)\s+-\s+(.+?)$')
      if info.nil?
        info = name.match('^\d+\.\s+(.*)$')
        i = "-metadata title=\"#{info[1]}\" -metadata artist=\"Unknown\" -metadata album=\"Non-Stop Pop FM\""
      else
        i = "-metadata title=\"#{info[1]}\" -metadata artist=\"#{info[2]}\" -metadata album=\"Non-Stop Pop FM\""
      end
      puts "ffmpeg -i Non-Stop-Pop-FM.mp3 -ss #{from + 1} -t #{to - from - 1} -c copy -y tmp.mp3"
      puts "ffmpeg -i tmp.mp3 -i Non-Stop-Pop-FM.png -map 0:0 -map 1:0 -c copy -id3v2_version 3 -metadata:s:v title='Album cover' -metadata:s:v comment='Cover (Front)' #{i} \"done/#{name}.mp3\""
    end
    from = to
  end
end

convert(
<<SRC
      - 13:20    None
      - 16:23    01. Wait - Dr Robert & Kym Mazelle
      - 18:03    02. Commercial
      - 22:22    03. Smalltown Boy - Bronski Beat
      - 25:43    04. Me & U - Cassie
      - 26:43    05. Commercial
      - 31:43    06. Days Go By - Dirty Vegas
      - 32:21    07. News
      - 36:06    08. Tennis Court - Lorde
      - 39:46    09. Feel Good Inc. - Gorillaz featuring De La Soul
      - 43:47    10. New Sensation - INXS
      - 47:25    11. Alright - Jamiroquai
      - 48:15    12. Commercial
      - 52:01    13. Applause - Lady Gaga
      - 54:58    14. Living In A Box - Living In A Box
      - 58:34    15. Bad Girls - M.I.A
      - 1:02:00  16. Midnight City - M83
      - 1:06:06  17. Something Got Me Started (Steve "Silk" Hurley mix) - Simply Red
      - 1:09:55  18. Tape Loop (Shortcheeba mix) - Morcheeba
      - 1:13:32  19. Promises, Promises - Naked Eyes
      - 1:17:02  20. Cooler Than Me - Mike Posner
      - 1:17:49  21. News
      - 1:21:34  22. The Time Is Now - Moloko
      - 1:22:52  23. News & Commercial
      - 1:26:34  None
      - 1:29:53  24. Moves Like Jagger - Maroon 5 featuring Christina Aguilera
      - 1:30:46  25. Commercial
      - 1:34:34  26. Send Me an Angel - Real Life
      - 1:38:50  27. Kids - Robbie Williams & Kylie Minogue
      - 1:40:12  28. Commercial
      - 1:43:57  29. 6 Underground - Sneaker Pimps
      - 1:47:35  30. Let's Go All the Way - Sly Fox
SRC
)