diff options
Diffstat (limited to 'Lib/irix5/cddb.py')
-rwxr-xr-x | Lib/irix5/cddb.py | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/Lib/irix5/cddb.py b/Lib/irix5/cddb.py new file mode 100755 index 0000000..7531312 --- /dev/null +++ b/Lib/irix5/cddb.py @@ -0,0 +1,104 @@ +# This file implements a class which forms an interface to the .cddb +# directory that is maintained by SGI's cdman program. +# +# Usage is as follows: +# +# import readcd +# r = readcd.Readcd().init() +# c = Cddb().init(r.gettrackinfo()) +# +# Now you can use c.artist, c.title and c.track[trackno] (where trackno +# starts at 1). When the CD is not recognized, all values will be the empty +# string. +# It is also possible to set the above mentioned variables to new values. +# You can then use c.write() to write out the changed values to the +# .cdplayerrc file. + +import string + +_cddbrc = '.cddb/' +_DB_ID_NTRACKS = 5 +_dbid_map = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ@_=+abcdefghijklmnopqrstuvwxyz' +def _dbid(v): + if v >= len(_dbid_map): + return string.zfill(v, 2) + else: + return _dbid_map[v] + +class Cddb(): + def init(self, tracklist): + self.artist = '' + self.title = '' + if type(tracklist) == type(''): + t = [] + for i in range(2, len(tracklist), 4): + t.append((None, \ + (string.atoi(tracklist[i:i+2]), \ + string.atoi(tracklist[i+2:i+4])))) + tracklist = t + ntracks = len(tracklist) + self.track = [None] + [''] * ntracks + self.id = _dbid((ntracks >> 4) & 0xF) + _dbid(ntracks & 0xF) + if ntracks <= _DB_ID_NTRACKS: + nidtracks = ntracks + else: + nidtracks = _DB_ID_NTRACKS - 1 + min = 0 + sec = 0 + for track in tracklist: + start, length = track + min = min + length[0] + sec = sec + length[1] + min = min + sec / 60 + sec = sec % 60 + self.id = self.id + _dbid(min) + _dbid(sec) + for i in range(nidtracks): + start, length = tracklist[i] + self.id = self.id + _dbid(length[0]) + _dbid(length[1]) + self.toc = string.zfill(ntracks, 2) + for track in tracklist: + start, length = track + self.toc = self.toc + string.zfill(length[0], 2) + \ + string.zfill(length[1], 2) + try: + import posix + file = posix.environ['HOME'] + '/' + _cddbrc + self.id + '.rdb' + f = open(file, 'r') + except IOError: + return self + import regex + reg = regex.compile('^\\([^.]*\\)\\.\\([^:]*\\):\t\\(.*\\)') + while 1: + line = f.readline() + if not line: + break + if reg.match(line) == -1: + print 'syntax error in ' + file + continue + name1 = line[reg.regs[1][0]:reg.regs[1][1]] + name2 = line[reg.regs[2][0]:reg.regs[2][1]] + value = line[reg.regs[3][0]:reg.regs[3][1]] + if name1 == 'album': + if name2 == 'artist': + self.artist = value + elif name2 == 'title': + self.title = value + elif name2 == 'toc': + if self.toc != value: + print 'toc\'s don\'t match' + elif name1[:5] == 'track': + trackno = string.atoi(name1[5:]) + self.track[trackno] = value + f.close() + return self + + def write(self): + import posix + file = posix.environ['HOME'] + '/' + _cddbrc + self.id + '.rdb' + f = open(file, 'w') + f.write('album.title:\t' + self.title + '\n') + f.write('album.artist:\t' + self.artist + '\n') + f.write('album.toc:\t' + self.toc + '\n') + for i in range(1, len(self.track)): + f.write('track' + `i` + '.title:\t' + self.track[i] + '\n') + f.close() |