感謝作者CHEN, Xing
需要Python環境。
需要mutagen。
#!/usr/bin/env python
# Reencode the ID3v1 and ID3v2 tag of a mp3 file.
# Copyright 2010 CHEN, Xing ([email protected])
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of version 2 of the GNU General Public License as
# published by the Free Software Foundation.
#
import os
import sys
import locale
from optparse import OptionParser
import mutagen.id3
VERSION = (0, 1)
def isascii(string):
return not string or min(string) < '\x127'
def MakeID3v1(id3, enc):
"""Return an ID3v1.1 tag string from a dict of ID3v2.4 frames."""
"""Copied from id3.py of mutagen. What I modified is the encoding of ID3v1, so that the tag can be parsed
correctly by Windows Media Player, etc."""
v1 = {}
for v2id, name in {"TIT2": "title", "TPE1": "artist",
"TALB": "album"}.items():
if v2id in id3:
text = id3[v2id].text[0].encode(enc, 'replace')[:30]
else:
text = ""
v1[name] = text + ("\x00" * (30 - len(text)))
if "COMM" in id3:
cmnt = id3["COMM"].text[0].encode(enc, 'replace')[:28]
else: cmnt = ""
v1["comment"] = cmnt + ("\x00" * (29 - len(cmnt)))
if "TRCK" in id3:
try: v1["track"] = chr(+id3["TRCK"])
except ValueError: v1["track"] = "\x00"
else: v1["track"] = "\x00"
if "TCON" in id3:
try: genre = id3["TCON"].genres[0]
except IndexError: pass
else:
if genre in TCON.GENRES:
v1["genre"] = chr(TCON.GENRES.index(genre))
if "genre" not in v1: v1["genre"] = "\xff"
if "TDRC" in id3:
v1["year"] = str(id3["TDRC"])[:4]
elif "TYER" in id3:
v1["year"] = str(id3["TYER"])[:4]
else:
v1["year"] = "\x00\x00\x00\x00"
return ("TAG%(title)s%(artist)s%(album)s%(year)s%(comment)s"
"%(track)s%(genre)s") % v1
def has_id3v1(filename):
f = open(filename, 'rb+')
try: f.seek(-128, 2)
except IOError: pass
else: return (f.read(3) == "TAG")
def get_id3v1(filename):
id3v1 = None
f = open(filename, 'rb+')
try: f.seek(-128, 2)
except IOError: pass
else:
id3v1 = mutagen.id3.ParseID3v1(f.read(128))
return id3v1
def convTxt(encList, s):
decF = s
for i in encList:
try:
decF = s.encode('latin1').decode(i)
tagEnc = i
break
except:
pass
#print tagEnc
return decF
def saveTagToFile(filename, fileID3, v1enc):
""" Update the file."""
fileID3.save(v1=1)
try:
hasID3v1 = has_id3v1(filename)
try: f = open(filename, 'rb+')
except IOError, err:
from errno import ENOENT
if err.errno != ENOENT: raise
f = open(filename, 'ab') # create, then reopen
f = open(filename, 'rb+')
v1 = 2
if hasID3v1:
f.seek(-128, 2)
if v1 > 0: f.write(MakeID3v1(fileID3, v1enc))
else: f.truncate()
elif v1 == 2:
f.seek(0, 2)
f.write(MakeID3v1(fileID3, v1enc))
finally:
f.close()
def main(argv):
from mutagen import File
default_enclist = "utf8,gbk"
mutagen_version = ".".join(map(str, mutagen.version))
my_version = ".".join(map(str, VERSION))
version = "mp3tagiconv %s\nUses Mutagen %s" % (
my_version, mutagen_version)
parser = OptionParser(usage="%prog [OPTION] [FILE]...", version=version,
description=("Mutagen-based mp3 tag encoding converter, which "
"can automatically detect the encoding "
"of the tags of a MP3 file, and can convert it so "
"that the tags can be recognized correctly in most "
"applications."))
parser.add_option(
"-e", "--encoding-list", metavar="ENCODING_LIST", action="store",
type="string", dest="enclist",
help=("Specify original tag encoding, comma seperated if you want "
"me to guess one by one(default: %s)" % default_enclist))
parser.add_option(
"--v1-encoding", metavar="ID3V1_ENCODING", action="store",
type="string", dest="v1enc",
help=("Specify tag encoding for ID3v1, the default value(gbk) should **ALWAYS** be OK for Simplified Chinese tags."))
parser.add_option(
"--do-update", action="store_true", dest="notest",
help="Save updates WITHOUT confirming. It is NOT recommended.")
#parser.add_option(
#"--confirm-test", action="store_true", dest="notest",
#help="Actually modify files. This is NOT default in order to protect your mp3 file from being damaged by wrong parameters.")
(options, args) = parser.parse_args(argv[1:])
if not args:
raise SystemExit(parser.print_help() or 1)
enclist = options.enclist or default_enclist
enclist = enclist.split(',')
notest = options.notest
v1enc = options.v1enc or "gbk"
enc = locale.getpreferredencoding()
for filename in args:
print "--", filename
try:
# Prepare information from ID3v1
id3v1 = get_id3v1(filename)
fileID3 = mutagen.id3.ID3(filename)
if id3v1 is not None:
# Merge ID3v1 and ID3v2
for i in id3v1.keys():
if i not in fileID3.keys():
fileID3.add(id3v1[i])
#print f.pprint()
for tag in filter(lambda t: t.startswith("T"), fileID3):
frame = fileID3[tag]
if isinstance(frame, mutagen.id3.TimeStampTextFrame):
# non-unicode fields
continue
try:
text = frame.text
except AttributeError:
continue
try:
#print frame.encoding
if frame.encoding == 0:
text = map(convTxt, [enclist,]*len(frame.text), frame.text)
except (UnicodeError, LookupError):
continue
else:
frame.text = text
#for i in text:
#print i.encode('utf8')
if not text or min(map(isascii, text)):
frame.encoding = 3
else:
frame.encoding = 1
print frame.pprint().encode(enc)
doSave = False
if notest:
doSave = True
else:
#print fileID3.pprint().encode(enc)
print "Do you want to save?(y/N)",
p=raw_input()
doSave = p=="y" or p=="Y"
if doSave:
print "*** Saving..."
saveTagToFile(filename, fileID3, v1enc)
else:
print
print "*** File is NOT updated."
except AttributeError: print "- Unknown file type"
except KeyboardInterrupt: raise
except Exception, err: print str(err)
print
if __name__ == "__main__":
try: import mutagen
except ImportError:
sys.path.append(os.path.abspath("../"))
import mutagen
main(sys.argv)