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cc-4105: added replaygain and a whole ton of formatting

This commit is contained in:
Rudi Grinberg 2012-08-08 11:04:56 -04:00
parent a8b9b300e5
commit 6f82fa103a
2 changed files with 22 additions and 11 deletions
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26
python_apps/media-monitor2/media/monitor/metadata.py
View File

@ -3,6 +3,8 @@ import mutagen
import math
import os
import copy
import media.update.replaygain as gain
from media.monitor.exceptions import BadSongFile
from media.monitor.log import Loggable
import media.monitor.pure as mmp
@ -16,8 +18,9 @@ list of supported easy tags in mutagen version 1.20
'titlesort', 'discsubtitle', 'website', 'musicip_fingerprint', 'conductor',
'compilation', 'barcode', 'performer:*', 'composersort', 'musicbrainz_discid',
'musicbrainz_albumtype', 'genre', 'isrc', 'discnumber', 'musicbrainz_trmid',
'replaygain_*_gain', 'musicip_puid', 'artist', 'title', 'bpm', 'musicbrainz_trackid',
'arranger', 'albumsort', 'replaygain_*_peak', 'organization']
'replaygain_*_gain', 'musicip_puid', 'artist', 'title', 'bpm',
'musicbrainz_trackid', 'arranger', 'albumsort', 'replaygain_*_peak',
'organization']
"""
airtime2mutagen = {
@ -46,10 +49,14 @@ airtime2mutagen = {
# airtime metadata object will skip the attribute outright.
airtime_special = {
"MDATA_KEY_DURATION" : lambda m: format_length(getattr(m.info, u'length', 0.0)),
"MDATA_KEY_BITRATE" : lambda m: getattr(m.info, "bitrate", 0),
"MDATA_KEY_SAMPLERATE" : lambda m: getattr(m.info, u'sample_rate', 0),
"MDATA_KEY_MIME" : lambda m: m.mime[0] if len(m.mime) > 0 else u'',
"MDATA_KEY_DURATION" :
lambda m: format_length(getattr(m.info, u'length', 0.0)),
"MDATA_KEY_BITRATE" :
lambda m: getattr(m.info, "bitrate", 0),
"MDATA_KEY_SAMPLERATE" :
lambda m: getattr(m.info, u'sample_rate', 0),
"MDATA_KEY_MIME" :
lambda m: m.mime[0] if len(m.mime) > 0 else u'',
}
mutagen2airtime = dict( (v,k) for k,v in airtime2mutagen.iteritems() if isinstance(v, str) )
@ -139,8 +146,9 @@ class Metadata(Loggable):
airtime_key = mutagen2airtime[muta_k]
# Apply truncation in the case where airtime_key is in our
# truncation table
muta_v = truncate_to_length(muta_v, truncate_table[airtime_key]) \
if airtime_key in truncate_table else muta_v
muta_v = \
truncate_to_length(muta_v, truncate_table[airtime_key])\
if airtime_key in truncate_table else muta_v
self.__metadata[ airtime_key ] = muta_v
# Now we extra the special values that are calculated from the mutagen
# object itself:
@ -152,6 +160,8 @@ class Metadata(Loggable):
self.__metadata = mmp.normalized_metadata(self.__metadata, fpath)
# Now we must load the md5:
self.__metadata['MDATA_KEY_MD5'] = mmp.file_md5(fpath)
self.__metadata['MDATA_KEY_REPLAYGAIN'] = \
gain.calculate_replay_gain(fpath)
def is_recorded(self):
return mmp.is_airtime_recorded( self.__metadata )

7
python_apps/media-monitor2/media/update/replaygain.py
View File

@ -45,9 +45,10 @@ def duplicate_file(file_path):
return fdst.name
def calculate_replay_gain(file_path):
""" This function accepts files of type mp3/ogg/flac and returns a
calculated ReplayGain value in dB. If the value cannot be calculated for
some reason, then we default to 0 (Unity Gain).
"""
This function accepts files of type mp3/ogg/flac and returns a calculated
ReplayGain value in dB. If the value cannot be calculated for some reason,
then we default to 0 (Unity Gain).
http://wiki.hydrogenaudio.org/index.php?title=ReplayGain_1.0_specification
"""