/usr/share/pyshared/DiscID.py is in python-cddb 1.4-5.1+b3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 | #!/usr/bin/env python
# Module for fetching information about an audio compact disc and
# returning it in a format friendly to CDDB.
# If called from the command line, will print out disc info in a
# format identical to Robert Woodcock's 'cd-discid' program.
# Written 17 Nov 1999 by Ben Gertzfield <che@debian.org>
# This work is released under the GNU GPL, version 2 or later.
# Release version 1.4
# CVS ID: $Id: DiscID.py,v 1.10 2003/08/31 23:19:45 che_fox Exp $
import cdrom, sys
def cddb_sum(n):
ret = 0
while n > 0:
ret = ret + (n % 10)
n = n / 10
return ret
def open(device=None, flags=None):
# Allow this function to be called with no arguments,
# specifying that we should call cdrom.open() with
# no arguments.
if device == None:
return cdrom.open()
elif flags == None:
return cdrom.open(device)
else:
return cdrom.open(device, flags)
def disc_id(device):
(first, last) = cdrom.toc_header(device)
track_frames = []
checksum = 0
for i in range(first, last + 1):
(min, sec, frame) = cdrom.toc_entry(device, i)
checksum = checksum + cddb_sum(min*60 + sec)
track_frames.append(min*60*75 + sec*75 + frame)
(min, sec, frame) = cdrom.leadout(device)
track_frames.append(min*60*75 + sec*75 + frame)
total_time = (track_frames[-1] / 75) - (track_frames[0] / 75)
discid = ((long(checksum) % 0xff) << 24 | total_time << 8 | last)
return [discid, last] + track_frames[:-1] + [ track_frames[-1] / 75 ]
if __name__ == '__main__':
dev_name = None
device = None
if len(sys.argv) >= 2:
dev_name = sys.argv[1]
if dev_name:
device = open(dev_name)
else:
device = open()
disc_info = disc_id(device)
print ('%08lx' % disc_info[0]),
for i in disc_info[1:]:
print ('%d' % i),
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