def _scrub_item(self, item, restore=True):
"""Remove tags from an Item's associated file and, if `restore`
is enabled, write the database's tags back to the file.
"""
# Get album art if we need to restore it.
if restore:
try:
mf = mediafile.MediaFile(util.syspath(item.path),
config['id3v23'].get(bool))
except mediafile.UnreadableFileError as exc:
self._log.error('could not open file to scrub: {0}', exc)
return
images = mf.images
# Remove all tags.
self._scrub(item.path)
# Restore tags, if enabled.
if restore:
self._log.debug('writing new tags after scrub')
item.try_write()
if images:
self._log.debug('restoring art')
try:
mf = mediafile.MediaFile(util.syspath(item.path),
config['id3v23'].get(bool))
mf.images = images
mf.save()
except mediafile.UnreadableFileError as exc:
self._log.error('could not write tags: {0}', exc)
def setUp(self):
self.create_temp_dir()
src = os.path.join(_common.RSRC, b'full.mp3')
self.path = os.path.join(self.temp_dir, b'test.mp3')
shutil.copy(src, self.path)
self.mf = mediafile.MediaFile(self.path)
def read_items(self, lib, items, album=None, pretend=False):
changed = set()
albums = {}
dels = []
for item in items:
mf = mediafile.MediaFile(item.path)
advisory = mf.itunesadvisory
if advisory:
if advisory == 1:
if album:
albums[album.id] = album
elif not item.singleton and item.album_id not in albums:
albums[item.album_id] = item.get_album()
if print_and_modify(item, {'advisory': advisory}, dels):
changed.add(item)
for album_id, album in albums.items():
if print_and_modify(album, {'albumadvisory': 1}, dels):
changed.add(album)
if not pretend:
with lib.transaction():
for obj in changed:
obj.store()
def test_release_time_with_t(self):
# Ensures that release times delimited by Ts are ignored.
# The iTunes Store produces such files.
t_time = mediafile.MediaFile(os.path.join(_common.RSRC, b't_time.m4a'))
self.assertEqual(t_time.year, 1987)
self.assertEqual(t_time.month, 3)
self.assertEqual(t_time.day, 31)
def test_discc_alternate_field(self):
# Different taggers use different vorbis comments to reflect
# the disc and disc count fields: ensure that the alternative
# style works.
f = mediafile.MediaFile(os.path.join(_common.RSRC, b'discc.ogg'))
self.assertEqual(f.disc, 4)
self.assertEqual(f.disctotal, 5)
def _make_test(self, ext=b'mp3', id3v23=False):
self.create_temp_dir()
src = os.path.join(_common.RSRC,
b'full.' + ext)
self.path = os.path.join(self.temp_dir,
b'test.' + ext)
shutil.copy(src, self.path)
return mediafile.MediaFile(self.path, id3v23=id3v23)
def test_release_time_with_space(self):
# Ensures that release times delimited by spaces are ignored.
# Amie Street produces such files.
space_time = mediafile.MediaFile(
os.path.join(_common.RSRC, b'space_time.mp3'))
self.assertEqual(space_time.year, 2009)
self.assertEqual(space_time.month, 9)
self.assertEqual(space_time.day, 4)
def test_write(self):
src = os.path.join(_common.RSRC, b'empty.flac')
path = os.path.join(self.temp_dir, b'test.flac')
shutil.copy(src, path)
mf = mediafile.MediaFile(path)
mf.read_only_field = "something terrible"
mf.save()
self.assertNotIn(self.key, mf.mgfile.tags)
def test_emptylist(self):
# Some files have an ID3 frame that has a list with no elements.
# This is very hard to produce, so this is just the first 8192
# bytes of a file found "in the wild".
emptylist = mediafile.MediaFile(
os.path.join(_common.RSRC, b'emptylist.mp3'))
genre = emptylist.genre
self.assertEqual(genre, None)
def get_art(log, item):
# Extract the art.
try:
mf = mediafile.MediaFile(syspath(item.path))
except mediafile.UnreadableFileError as exc:
log.warning('Could not extract art from {0}: {1}',
displayable_path(item.path), exc)
return
return mf.art
def cover_art():
cache = current_app.cache
eid = request.values["id"]
try:
fid = get_entity_id(Folder, eid)
except GenericError:
fid = None
try:
tid = get_entity_id(Track, eid)
except GenericError:
tid = None
if not fid and not tid:
raise GenericError("Invalid ID")
if fid and Folder.exists(id=eid):
res = get_entity(Folder)
if not res.cover_art or not os.path.isfile(
os.path.join(res.path, res.cover_art)):
raise NotFound("Cover art")
cover_path = os.path.join(res.path, res.cover_art)
elif tid and Track.exists(id=eid):
cache_key = "{}-cover".format(eid)
try:
cover_path = cache.get(cache_key)
except CacheMiss:
res = get_entity(Track)
try:
art = mediafile.MediaFile(res.path).art
except mediafile.UnreadableFileError:
raise NotFound("Cover art")
cover_path = cache.set(cache_key, art)
else:
raise NotFound("Entity")
size = request.values.get("size")
if size:
size = int(size)
else:
return send_file(cover_path)
with Image.open(cover_path) as im:
mimetype = "image/{}".format(im.format.lower())
if size > im.width and size > im.height:
return send_file(cover_path, mimetype=mimetype)
cache_key = "{}-cover-{}".format(eid, size)
try:
return send_file(cache.get(cache_key), mimetype=mimetype)
except CacheMiss:
im.thumbnail([size, size], Image.ANTIALIAS)
with cache.set_fileobj(cache_key) as fp:
im.save(fp, im.format)
return send_file(cache.get(cache_key), mimetype=mimetype)
def write_advisory(self, lib, opts, args):
self.config.set_args(opts)
for item in lib.items(u'advisory:1..'):
mf = mediafile.MediaFile(item.path)
if item.advisory != mf.itunesadvisory:
fakeitem = new_item(item)
fakeitem.advisory = mf.itunesadvisory
show_model_changes(item, fakeitem)
if not opts.pretend:
mf.itunesadvisory = item.advisory
mf.save()
def emitter():
fields = list(mediafile.MediaFile.readable_fields())
fields.remove('images')
mf = mediafile.MediaFile(syspath(path))
tags = {}
for field in fields:
tags[field] = getattr(mf, field)
tags['art'] = mf.art is not None
# create a temporary Item to take advantage of __format__
item = Item.from_path(syspath(path))
return tags, item
def import_track_to_db(path: Path):
"""Import track to database using mediafile"""
try:
mf = mediafile.MediaFile(path)
except (mediafile.FileTypeError, mediafile.UnreadableFileError):
logger.debug(f"Error reading tags from file '{path}'")
return
mtime = os.path.getmtime(path)
mtime_timestamp = datetime.datetime.fromtimestamp(mtime)
track, created = Track.objects.update_or_create(
file=str(path),
artist=mf.artist,
title=mf.title,
comment=mf.comments,
bpm=mf.bpm,
key=mf.initial_key,
duration=mf.length,
bitrate=mf.bitrate,
album=mf.album,
import_date=get_geob_date(path),
)
track_was_updated = track.file_mtime and track.file_mtime < mtime_timestamp
track.file_mtime = mtime_timestamp
for image in mf.images:
if not image.mime_type:
logger.error(f"Invalid mimetype: {image}")
continue
image_extension = image.mime_type.split("/")[-1]
track_image = TrackImage(track=track, desc=image.desc)
image_file = UmaskNamedTemporaryFile(mode="wb",
suffix=f".{image_extension}")
image_file.write(image.data)
track_image.image.save(os.path.basename(image_file.name),
ContentFile(image.data))
track_image.save()
if created or track_was_updated:
if mf.popm:
for email in mf.popm.keys():
rating, _ = TrackRating.objects.update_or_create(track=track,
email=email)
rating.rating = mf.popm[email]["rating"]
rating.count = mf.popm[email]["count"]
rating.save()
track.file_mtime = mtime_timestamp
track.save(update_fields=["file_mtime"])
def test_extended_field_write(self):
plugin = BeetsPlugin()
plugin.add_media_field('customtag', field_extension)
try:
mf = self._mediafile_fixture('empty')
mf.customtag = u'F#'
mf.save()
mf = mediafile.MediaFile(mf.path)
self.assertEqual(mf.customtag, u'F#')
finally:
delattr(mediafile.MediaFile, 'customtag')
Item._media_fields.remove('customtag')
def _cover_from_track(tid):
"""Extract and return a path to a track's cover art
Returns None if no cover art is available.
"""
cache = current_app.cache
cache_key = "{}-cover".format(tid)
try:
return cache.get(cache_key)
except CacheMiss:
obj = Track[tid]
try:
return cache.set(cache_key, mediafile.MediaFile(obj.path).art)
except mediafile.UnreadableFileError:
return None
def test_write_extended_tag_from_item(self):
plugin = BeetsPlugin()
plugin.add_media_field('customtag', field_extension)
try:
mf = self._mediafile_fixture('empty')
self.assertIsNone(mf.customtag)
item = Item(path=mf.path, customtag=u'Gb')
item.write()
mf = mediafile.MediaFile(mf.path)
self.assertEqual(mf.customtag, u'Gb')
finally:
delattr(mediafile.MediaFile, 'customtag')
Item._media_fields.remove('customtag')
def save_tag_to_audio_file(audio_file, tracklisting):
"""
Saves tag to audio file.
"""
print("Trying to tag {}".format(audio_file))
f = mediafile.MediaFile(audio_file)
if not f.lyrics:
print("No tracklisting present. Creating lyrics tag.")
f.lyrics = 'Tracklisting' + '\n' + tracklisting
elif tracklisting not in f.lyrics:
print("Appending tracklisting to existing lyrics tag.")
f.lyrics = f.lyrics + '\n\n' + 'Tracklisting' + '\n' + tracklisting
else:
print("Tracklisting already present. Not modifying file.")
raise TagNotNeededError
f.save()
print("Saved tag to file:", audio_file)
def _write_tags(track: Track):
"""Write tags to a track's file."""
log.info(f"Writing tags for '{track}'.")
audio_file = mediafile.MediaFile(track.path)
audio_file.album = track.album
audio_file.albumartist = track.albumartist
audio_file.artist = track.artist
audio_file.date = track.date
audio_file.disc = track.disc
audio_file.disctotal = track.disc_total
audio_file.genres = track.genres
audio_file.mb_releasetrackid = track.mb_track_id
audio_file.mb_albumid = track.mb_album_id
audio_file.title = track.title
audio_file.track = track.track_num
audio_file.save()
def emitter(included_keys):
if included_keys == '*':
fields = tag_fields()
else:
fields = included_keys
if 'images' in fields:
# We can't serialize the image data.
fields.remove('images')
mf = mediafile.MediaFile(syspath(path))
tags = {}
for field in fields:
if field == 'art':
tags[field] = mf.art is not None
else:
tags[field] = getattr(mf, field, None)
# create a temporary Item to take advantage of __format__
item = Item.from_path(syspath(path))
return tags, item
def from_path(cls, path: Path) -> "TrackSchema":
logger = logging.getLogger(__name__)
logger.debug(f"Importing track: {path.name}")
file_modification_date = datetime.datetime.fromtimestamp(
path.stat().st_mtime)
track = TrackSchema(file=path, file_mtime=file_modification_date)
try:
media_file = mediafile.MediaFile(path)
track.artist = media_file.artist
track.title = media_file.title
track.comment = media_file.comments
track.bpm = media_file.bpm
track.key = media_file.initial_key
track.duration = media_file.length
track.bitrate = media_file.bitrate
track.album = media_file.album
except (mediafile.FileTypeError,
mediafile.UnreadableFileError) as error:
track.import_error = str(error)
return track
def __try_load_tag(self, path):
try:
return mediafile.MediaFile(path)
except mediafile.UnreadableFileError:
return None
def run(self):
# gather metadata from the flac file
flac_info = mediafile.MediaFile(self.flac_file)
# determine the new filename
transcode_file = re.sub(re.escape(self.flac_dir), self.transcode_dir,
self.flac_file)
transcode_file = re.sub('\.flac$', '', transcode_file)
# make sure the path exists
if not os.path.exists(os.path.dirname(transcode_file)):
os.makedirs(os.path.dirname(transcode_file))
# determine the correct transcoding process
flac_decoder = 'flac -dcs -- "%(FLAC)s"'
lame_encoder = 'lame -S %(OPTS)s - "%(FILE)s" > /dev/null 2> /dev/null'
ogg_encoder = 'oggenc -Q %(OPTS)s -o "%(FILE)s" - > /dev/null 2> /dev/null'
ffmpeg_encoder = 'ffmpeg %(OPTS)s "%(FILE)s" > /dev/null 2> /dev/null'
nero_encoder = 'neroAacEnc %(OPTS)s -if - -of "%(FILE)s" > /dev/null 2> /dev/null'
flac_encoder = 'flac %(OPTS)s -o "%(FILE)s" - > /dev/null 2> /dev/null'
dither_command = 'sox -t wav - -b 16 -r 44100 -t wav -'
transcoding_steps = [flac_decoder]
if self.dither:
transcoding_steps.append(dither_command)
if encoders[self.codec]['enc'] == 'lame':
transcoding_steps.append(lame_encoder)
transcode_file += ".mp3"
elif encoders[self.codec]['enc'] == 'oggenc':
transcoding_steps.append(ogg_encoder)
transcode_file += ".ogg"
elif encoders[self.codec]['enc'] == 'ffmpeg':
transcoding_steps.append(ffmpeg_encoder)
transcode_file += ".alac"
elif encoders[self.codec]['enc'] == 'neroAacEnc':
transcoding_steps.append(nero_encoder)
transcode_file += ".m4a"
elif encoders[self.codec]['enc'] == 'flac':
transcoding_steps.append(flac_encoder)
transcode_file += ".flac"
transcode_args = {
'FLAC': self.flac_file,
'FILE': transcode_file,
'OPTS': encoders[self.codec]['opts']
}
transcode_command = ' | '.join(transcoding_steps) % transcode_args
if self.dither and self.codec == 'FLAC':
# for some reason, FLAC | SoX | FLAC does not work.
# use files instead.
transcode_args['TEMP'] = self.flac_file + ".wav"
transcode_command = ''.join([flac_decoder, ' | ', dither_command, ' > "%(TEMP)s"; ', \
flac_encoder, ' < "%(TEMP)s"; rm "%(TEMP)s"']) % transcode_args
# transcode the file
try:
os.system(transcode_command)
except UnicodeEncodeError:
os.system(transcode_command.encode('utf-8'))
# tag the file
transcode_info = mediafile.MediaFile(transcode_file)
skip = ['format', 'type', 'bitrate', 'mgfile', 'save']
for attribute in dir(flac_info):
if not attribute.startswith('_') and attribute not in skip:
try:
setattr(transcode_info, attribute,
getattr(flac_info, attribute))
except:
continue
transcode_info.save()
self.cv.acquire()
self.cv.notify_all()
self.cv.release()
return 0
def transcode(flac_dir, codec, max_threads=cpu_count(), output_dir=None):
'''transcode a directory of FLACs to another format'''
if codec not in encoders.keys():
return None
flac_dir = os.path.abspath(flac_dir)
flac_files = []
log_files = []
images = []
# classify the files
for path, dirs, files in os.walk(flac_dir, topdown=False):
for name in files:
canonical = os.path.join(path, name)
if fnmatch.fnmatch(name, '*.flac'):
flac_files.append(canonical)
elif fnmatch.fnmatch(name, '*.log'):
log_files.append(canonical)
elif fnmatch.fnmatch(name, '*.jpg'):
images.append(canonical)
# determine sample rate & bits per sample
flac_info = mediafile.MediaFile(flac_files[0])
sample_rate = flac_info.mgfile.info.sample_rate
bits_per_sample = flac_info.mgfile.info.bits_per_sample
# check if we need to dither to 16/44
if sample_rate > 48000 or bits_per_sample > 16:
dither = True
else:
dither = False
# check if we need to encode
if dither == False and codec == 'FLAC':
return flac_dir
# make a new directory for the transcoded files
if output_dir is not None:
transcode_dir = output_dir
else:
transcode_dir = get_transcode_dir(flac_dir, codec, dither, output_dir)
if not os.path.exists(transcode_dir):
os.makedirs(transcode_dir)
# create transcoding threads
threads = []
cv = threading.Condition()
for flac_file in flac_files:
cv.acquire()
while threading.active_count() == (max_threads + 1):
cv.wait()
cv.release()
t = Transcode(flac_file, flac_dir, transcode_dir, codec, dither, cv)
t.start()
threads.append(t)
for t in threads:
t.join()
# copy other files
for path, dirs, files in os.walk(flac_dir, topdown=False):
for name in files:
if not fnmatch.fnmatch(name, '*.flac') and not fnmatch.fnmatch(
name, '*.m3u'):
d = re.sub(re.escape(flac_dir), transcode_dir, path)
if not os.path.exists(d):
os.makedirs(d)
shutil.copy(os.path.join(path, name), d)
return transcode_dir
def setUp(self):
super(TypeTest, self).setUp()
path = os.path.join(_common.RSRC, b'full.mp3')
self.mf = mediafile.MediaFile(path)
def test_read(self):
path = os.path.join(_common.RSRC, b'empty.flac')
mf = mediafile.MediaFile(path)
mf.mgfile.tags[self.key] = "don't"
self.assertEqual("don't", mf.read_only_test)
def _mediafile_fixture(self, name, extension='mp3'):
name = bytestring_path(name + '.' + extension)
src = os.path.join(_common.RSRC, name)
target = os.path.join(self.temp_dir, name)
shutil.copy(src, target)
return mediafile.MediaFile(target)
def test_soundcheck_non_ascii(self):
# Make sure we don't crash when the iTunes SoundCheck field contains
# non-ASCII binary data.
f = mediafile.MediaFile(
os.path.join(_common.RSRC, b'soundcheck-nonascii.m4a'))
self.assertEqual(f.rg_track_gain, 0.0)
def test_old_ape_version_bitrate(self):
media_file = os.path.join(_common.RSRC, b'oldape.ape')
f = mediafile.MediaFile(media_file)
self.assertEqual(f.bitrate, 0)
def test_tempo_with_bpm(self):
# Some files have a string like "128 BPM" in the tempo field
# rather than just a number.
f = mediafile.MediaFile(os.path.join(_common.RSRC, b'bpm.mp3'))
self.assertEqual(f.bpm, 128)
