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cc-4105: updated to martin's replaygain

This commit is contained in:
Rudi Grinberg 2012-08-08 15:24:18 -04:00
parent 1235e86251
commit 91145a3f16
2 changed files with 47 additions and 28 deletions
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4
python_apps/media-monitor2/media/monitor/metadata.py
View File

@ -161,8 +161,8 @@ 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,max_length=100)
#self.__metadata['MDATA_KEY_REPLAYGAIN'] = \
#gain.calculate_replay_gain(fpath)
self.__metadata['MDATA_KEY_REPLAYGAIN'] = \
gain.calculate_replay_gain(fpath)
def is_recorded(self):
return mmp.is_airtime_recorded( self.__metadata )

71
python_apps/media-monitor2/media/update/replaygain.py
View File

@ -40,7 +40,7 @@ def duplicate_file(file_path):
fsrc = open(file_path, 'r')
fdst = tempfile.NamedTemporaryFile(delete=False)
print "Copying %s to %s" % (file_path, fdst.name)
logger.info("Copying %s to %s" % (file_path, fdst.name))
shutil.copyfileobj(fsrc, fdst)
@ -49,6 +49,26 @@ def duplicate_file(file_path):
return fdst.name
def get_file_type(file_path):
file_type = None
if re.search(r'mp3$', file_path, re.IGNORECASE):
file_type = 'mp3'
elif re.search(r'og(g|a)$', file_path, re.IGNORECASE):
file_type = 'vorbis'
elif re.search(r'flac$', file_path, re.IGNORECASE):
file_type = 'flac'
else:
mime_type = get_mime_type(file_path) == "audio/mpeg"
if 'mpeg' in mime_type:
file_type = 'mp3'
elif 'ogg' in mime_type:
file_type = 'vorbis'
elif 'flac' in mime_type:
file_type = 'flac'
return file_type
def calculate_replay_gain(file_path):
"""
This function accepts files of type mp3/ogg/flac and returns a calculated ReplayGain value in dB.
@ -66,36 +86,35 @@ def calculate_replay_gain(file_path):
search = None
temp_file_path = duplicate_file(file_path)
if re.search(r'mp3$', file_path, re.IGNORECASE) or get_mime_type(file_path) == "audio/mpeg":
if run_process("which mp3gain > /dev/null") == 0:
out = get_process_output('mp3gain -q "%s" 2> /dev/null' % temp_file_path)
search = re.search(r'Recommended "Track" dB change: (.*)', out)
file_type = get_file_type(file_path)
if file_type:
if file_type == 'mp3':
if run_process("which mp3gain > /dev/null") == 0:
out = get_process_output('mp3gain -q "%s" 2> /dev/null' % temp_file_path)
search = re.search(r'Recommended "Track" dB change: (.*)', out)
else:
logger.warn("mp3gain not found")
elif file_type == 'vorbis':
if run_process("which vorbisgain > /dev/null && which ogginfo > /dev/null") == 0:
run_process('vorbisgain -q -f "%s" 2>/dev/null >/dev/null' % temp_file_path)
out = get_process_output('ogginfo "%s"' % temp_file_path)
search = re.search(r'REPLAYGAIN_TRACK_GAIN=(.*) dB', out)
else:
logger.warn("vorbisgain/ogginfo not found")
elif file_type == 'flac':
if run_process("which metaflac > /dev/null") == 0:
out = get_process_output('metaflac --show-tag=REPLAYGAIN_TRACK_GAIN "%s"' % temp_file_path)
search = re.search(r'REPLAYGAIN_TRACK_GAIN=(.*) dB', out)
else:
logger.warn("metaflac not found")
else:
print "mp3gain not found"
#Log warning
elif re.search(r'og(g|a)$', file_path, re.IGNORECASE) or get_mime_type(file_path) == "application/ogg":
if run_process("which vorbisgain > /dev/null && which ogginfo > /dev/null") == 0:
run_process('vorbisgain -q -f "%s" 2>/dev/null >/dev/null' % temp_file_path)
out = get_process_output('ogginfo "%s"' % temp_file_path)
search = re.search(r'REPLAYGAIN_TRACK_GAIN=(.*) dB', out)
else:
print "vorbisgain/ogginfo not found"
#Log warning
elif re.search(r'flac$', file_path, re.IGNORECASE) or get_mime_type(file_path) == "audio/x-flac":
if run_process("which metaflac > /dev/null") == 0:
out = get_process_output('metaflac --show-tag=REPLAYGAIN_TRACK_GAIN "%s"' % temp_file_path)
search = re.search(r'REPLAYGAIN_TRACK_GAIN=(.*) dB', out)
else:
print "metaflac not found"
#Log warning
else:
pass
#Log unknown file type.
pass
#no longer need the temp, file simply remove it.
os.remove(temp_file_path)
except Exception, e:
print e
logger.error(str(e))
replay_gain = 0
if search: