examples/musicbrainz-get-tracks

   1 #!/usr/bin/python
   2
   3 # Copyright 2005 Decklin Foster, licensed under the same terms as abcde.
   4
   5 import sys
   6 import getopt
   7 import musicbrainz
   8 import musicbrainz.queries as mq
   9
  10 DEF_CD_DEV = '/dev/cdrom'
  11
  12 # TODO:
  13 #
  14 # * --cdrom should take an argument, e.g. /dev/cdrom1. musicbrainz.queries
  15 #   doesn't seem to provide for this.
  16
  17 def get_toc_discid(mb):
  18     mb.Query(mq.MBQ_GetCDTOC)
  19     return mb.GetResultData(mq.MBE_TOCGetCDIndexId)
  20
  21 def lookup_discid(mb, id):
  22     mb.QueryWithArgs(mq.MBQ_GetCDInfoFromCDIndexId, [id])
  23
  24 if __name__ == "__main__":
  25     shortopts = 'cd:'
  26     longopts = ['cdrom', 'discid=']
  27
  28     mb = musicbrainz.mb()
  29     mb.SetDepth(2)
  30
  31     opts, args = getopt.getopt(sys.argv[1:], shortopts, longopts)
  32
  33     id = None
  34     if opts:
  35         for opt, arg in opts:
  36             if opt in ('--cdrom', '-c'):
  37                 id = get_toc_discid(mb)
  38                 lookup_discid(mb, id)
  39             if opt in ('--discid', '-d'):
  40                 id = arg
  41                 lookup_discid(mb, id)
  42     else:
  43         id = get_toc_discid(mb)
  44         lookup_discid(mb, id)
  45
  46     matches = mb.GetResultInt(mq.MBE_GetNumAlbums)
  47     if matches == 0:
  48         print >>sys.stderr, "could not find an entry for this CD"
  49         sys.exit(1)
  50     if matches > 1:
  51         print >>sys.stderr, "warning: multiple matches, using first"
  52
  53     mb.Select1(mq.MBS_SelectAlbum, 1)
  54     album = mb.GetResultData(mq.MBE_AlbumGetAlbumName)
  55     n = mb.GetResultInt(mq.MBE_AlbumGetNumTracks)
  56
  57     artistid = mb.GetIDFromURL(mb.GetResultData(mq.MBE_AlbumGetAlbumArtistId))
  58     if artistid == mq.MBI_VARIOUS_ARTIST_ID:
  59         artist = 'Various Artists'
  60     else:
  61         try:
  62             artist = mb.GetResultData1(mq.MBE_AlbumGetArtistName, 1)
  63         except musicbrainz.MusicBrainzError:
  64             artist = 'Unknown Artist'
  65
  66     if args:
  67         tracks = map(int, args)
  68     else:
  69         tracks = range(1, n+1)
  70
  71     trackinfo = []
  72     for i in tracks:
  73         if artistid == mq.MBI_VARIOUS_ARTIST_ID:
  74             try:
  75                 tartist = mb.GetResultData1(mq.MBE_AlbumGetArtistName, i)
  76             except musicbrainz.MusicBrainzError:
  77                 tartist = 'Unknown Artist'
  78         else:
  79             tartist = None
  80         try:
  81             ttitle = mb.GetResultData1(mq.MBE_AlbumGetTrackName, i)
  82         except musicbrainz.MusicBrainzError:
  83             tartist = 'Unknown Track'
  84         try:
  85             tlength = mb.GetResultInt1(mq.MBE_AlbumGetTrackDuration, i)
  86         except musicbrainz.MusicBrainzError:
  87             tlength = 0
  88         trackinfo.append((tartist, ttitle, tlength))
  89
  90     print "# fake CD database file generated by musicbrainz-get-tracks 0.1"
  91     print "#"
  92     print "# Track frame offsets:"
  93
  94     # Assume standard pregap
  95     total_len = 2000
  96     for t in trackinfo:
  97         tartist, ttitle, tlength = t
  98         print "#       %d" % (total_len / (1000.0/75.0))
  99         total_len += tlength
 100
 101     print "#"
 102     print "# Disc length: %d seconds" % (total_len / 1000)
 103     print "#"
 104     print "# Revision: 0"
 105     print "# Processed by: MusicBrainz"
 106     print "# Submitted by: MusicBrainz"
 107     print "DISCID=%s" % id
 108     print "DTITLE=%s / %s" % (artist, album)
 109
 110     for i in range(0, len(trackinfo)):
 111         tartist, ttitle, tlength = trackinfo[i]
 112         if tartist:
 113             print "TTITLE%d=%s / %s" % (i, tartist, ttitle)
 114         else:
 115             print "TTITLE%d=%s" % (i, ttitle)
 116
 117     print "EXTD="
 118
 119     for i in range(0, len(trackinfo)):
 120         print "EXTD%d=" % i
 121
 122     print "PLAYORDER="
 123     print "."