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import os
import sys
import locale
from optparse import OptionParser
VERSION = (0, 1)
def isascii(string):
return not string or min(string) < '/x127'
class ID3OptionParser(OptionParser):
def __init__(self):
mutagen_version = ".".join(map(str, mutagen.version))
my_version = ".".join(map(str, VERSION))
version = "mid3iconv %s/nUses Mutagen %s" % (
my_version, mutagen_version)
return OptionParser.__init__(
self, version=version,
usage="%prog [OPTION] [FILE]...",
description=("Mutagen-based replacement the id3iconv utility, "
"which converts ID3 tags from legacy encodings "
"to Unicode and stores them using the ID3v2 format."))
def format_help(self, *args, **kwargs):
text = OptionParser.format_help(self, *args, **kwargs)
return text + "/nFiles are updated in-place, so use --dry-run first./n"
def update(options, filenames):
encoding = options.encoding or locale.getpreferredencoding()
verbose = options.verbose
noupdate = options.noupdate
force_v1 = options.force_v1
remove_v1 = options.remove_v1
def conv(uni):
return uni.encode('iso-8859-1').decode(encoding)
for filename in filenames:
if verbose != "quiet":
print "Updating", filename
if has_id3v1(filename) and not noupdate and force_v1:
mutagen.id3.delete(filename, False, True)
try: id3 = mutagen.id3.ID3(filename)
except mutagen.id3.ID3NoHeaderError:
if verbose != "quiet":
print "No ID3 header found; skipping..."
continue
except Exception, err:
if verbose != "quiet":
print str(err)
continue
for tag in filter(lambda t: t.startswith("T"), id3):
if tag == "TDRC":
continue
frame = id3[tag]
try:
text = map(conv, frame.text)
except (UnicodeError, LookupError):
continue
else:
frame.text = text
if min(map(isascii, text)):
frame.encoding = 3
else:
frame.encoding = 1
enc = locale.getpreferredencoding()
if verbose == "debug":
print id3.pprint().encode(enc, "replace")
if not noupdate:
if remove_v1: id3.save(filename, v1=False)
else: id3.save(filename)
def has_id3v1(filename):
f = open(filename, 'rb+')
try: f.seek(-128, 2)
except IOError: pass
else: return (f.read(3) == "TAG")
def main(argv):
parser = ID3OptionParser()
parser.add_option(
"-e", "--encoding", metavar="ENCODING", action="store",
type="string", dest="encoding",
help=("Specify original tag encoding (default is %s)" %(
locale.getpreferredencoding())))
parser.add_option(
"-p", "--dry-run", action="store_true", dest="noupdate",
help="Do not actually modify files")
parser.add_option(
"--force-v1", action="store_true", dest="force_v1",
help="Use an ID3v1 tag even if an ID3v2 tag is present")
parser.add_option(
"--remove-v1", action="store_true", dest="remove_v1",
help="Remove v1 tag after processing the files")
parser.add_option(
"-q", "--quiet", action="store_const", dest="verbose",
const="quiet", help="Only output errors")
parser.add_option(
"-d", "--debug", action="store_const", dest="verbose",
const="debug", help="Output updated tags")
for i, arg in enumerate(sys.argv):
if arg == "-v1": sys.argv[i] = "--force-v1"
elif arg == "-removev1": sys.argv[i] = "--remove-v1"
(options, args) = parser.parse_args(argv[1:])
if args:
update(options, args)
else:
parser.print_help()
if __name__ == "__main__":
try: import mutagen, mutagen.id3
except ImportError:
sys.path.append(os.path.abspath("../"))
import mutagen, mutagen.id3
main(sys.argv)
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