85 lines
2.1 KiB
Python
85 lines
2.1 KiB
Python
|
import mutagen
|
||
|
|
import mutagen.id3
|
||
|
|
import mutagen.easyid3
|
||
|
|
|
||
|
|
# TODO: custom interface to tracknumber/tracktotal/disc...
|
||
|
|
|
||
|
|
def popms(id3):
|
||
|
|
for k, v in id3.iteritems():
|
||
|
|
if k.startswith('POPM'):
|
||
|
|
yield k, v
|
||
|
|
|
||
|
|
def byte2rating(b):
|
||
|
|
if b >= 224: return 5
|
||
|
|
if b >= 160: return 4
|
||
|
|
if b >= 96: return 3
|
||
|
|
if b >= 32: return 2
|
||
|
|
if b >= 1: return 1
|
||
|
|
return 0
|
||
|
|
|
||
|
|
def rating2byte(r):
|
||
|
|
if r == 5: return 256
|
||
|
|
if r == 4: return 192
|
||
|
|
if r == 3: return 128
|
||
|
|
if r == 2: return 64
|
||
|
|
if r == 1: return 1
|
||
|
|
return 0
|
||
|
|
|
||
|
|
def rating_get(id3, key):
|
||
|
|
try:
|
||
|
|
rating = id3['TXXX:RATING']
|
||
|
|
except KeyError:
|
||
|
|
try:
|
||
|
|
_, popm = popms(id3).next()
|
||
|
|
except StopIteration:
|
||
|
|
return []
|
||
|
|
else:
|
||
|
|
return [byte2rating(popm.rating)]
|
||
|
|
else:
|
||
|
|
return list(rating.text)
|
||
|
|
|
||
|
|
def _canconv(r):
|
||
|
|
try:
|
||
|
|
if int(r) != str(int(r)):
|
||
|
|
return False
|
||
|
|
return int(r) >= 1 and int(r) <= 5
|
||
|
|
except ValueError, TypeError:
|
||
|
|
return False
|
||
|
|
|
||
|
|
def rating_set(id3, key, val):
|
||
|
|
rating_delete(id3, key)
|
||
|
|
if _canconv(val):
|
||
|
|
popm = mutagen.id3.POPM()
|
||
|
|
popm.email = "Windows Media Player 9 Series"
|
||
|
|
popm.count = 0
|
||
|
|
popm.rating = rating2byte(int(val))
|
||
|
|
id3.add(popm)
|
||
|
|
else:
|
||
|
|
if 'TXXX:RATING' in id3:
|
||
|
|
del(id3['TXXX:RATING'])
|
||
|
|
id3.add(mutagen.id3.TXXX(encoding=3, desc='RATING', text=unicode(val)))
|
||
|
|
|
||
|
|
def rating_delete(id3, key):
|
||
|
|
for k, v in popms(id3):
|
||
|
|
del(id3[k])
|
||
|
|
if 'TXXX:RATING' in id3:
|
||
|
|
del(id3['TXXX:RATING'])
|
||
|
|
|
||
|
|
def tracknumber_get(id3, key):
|
||
|
|
# TODO: use for both track and disc
|
||
|
|
pass
|
||
|
|
|
||
|
|
def tracknumber_set(id3, key, val):
|
||
|
|
pass
|
||
|
|
|
||
|
|
def tracknumber_delete(id3, key):
|
||
|
|
pass
|
||
|
|
|
||
|
|
replaygain_tags = ('replaygain_album_gain', 'replaygain_album_peak', \
|
||
|
|
'replaygain_track_gain', 'replaygain_track_peak')
|
||
|
|
|
||
|
|
for tag in replaygain_tags:
|
||
|
|
mutagen.easyid3.EasyID3.RegisterTXXXKey(tag, tag)
|
||
|
|
mutagen.easyid3.EasyID3.RegisterTXXXKey('sync', 'SYNC')
|
||
|
|
mutagen.easyid3.EasyID3.RegisterKey('rating', rating_get, rating_set, rating_delete)
|