def song_attributes(filename, verbose=True, db=None):
if db is None:
db = DB_Helper()
if db.is_in_db(filename):
return
msys.updControl('mrs_string/filename', filename)
if not get_control(msys, 'bool', 'hasData'):
raise RuntimeError(
'It looks like Marsyas was unable to load your file! '
'Make sure you have the right codec support enabled.')
# The StereoPanningSpectrumFeatures will only work
# correctly with two channels.
if get_control(msys, 'natural', 'channels') == 2:
chan_control = 'enableChild'
else:
chan_control = 'disableChild'
msys.updControl('Fanout/timbrepanning/mrs_string/' + chan_control,
'StereoPanningSpectrumFeatures/SPSFeatures')
observations = get_control(msys, 'natural', 'onObservations')
sum_vals = [0] * observations
sum_of_squares = [0] * observations
count = 0
while get_control(msys, 'bool', 'hasData'):
msys.tick()
vals = get_control(msys, 'realvec', 'processedData')
sum_vals = [old + new for old, new in izip(sum_vals, vals)]
sum_of_squares = [
old + new**2 for old, new in izip(sum_of_squares, vals)
]
count += 1
reset_msys(msys)
out = {field.name: None for field in attribute_schema}
for i, attr in enumerate(obs_names(msys)):
avg = sum_vals[i] / count
squares_avg = sum_of_squares[i] / count
out['mean_' + attr] = avg
out['stdev_' + attr] = math.sqrt(squares_avg - avg**2)
out[commonPath] = filename
out[commonArtist] = None
out[commonTitle] = None
db.add_song(out)
def song_attributes(songpath, verbose = True, db = None):
if db is None:
db = DB_Helper()
if not db.is_in_db(songpath):
fp = open(songpath, 'rb')
if verbose:
print "Harvesting: " + songpath
get_attr(fp, songpath, db)
def song_attributes(songpath, verbose=True, db=None):
if db is None:
db = DB_Helper()
if not db.is_in_db(songpath):
fp = open(songpath, 'rb')
if verbose:
print "Harvesting: " + songpath
get_attr(fp, songpath, db)
def song_attributes(filename, verbose=True, db=None):
if db is None:
db = DB_Helper()
if db.is_in_db(filename):
return
msys.updControl('mrs_string/filename', filename)
if not get_control(msys, 'bool', 'hasData'):
raise RuntimeError('It looks like Marsyas was unable to load your file! '
'Make sure you have the right codec support enabled.')
# The StereoPanningSpectrumFeatures will only work
# correctly with two channels.
if get_control(msys, 'natural', 'channels') == 2:
chan_control = 'enableChild'
else:
chan_control = 'disableChild'
msys.updControl('Fanout/timbrepanning/mrs_string/' + chan_control,
'StereoPanningSpectrumFeatures/SPSFeatures')
observations = get_control(msys, 'natural', 'onObservations')
sum_vals = [0] * observations
sum_of_squares = [0] * observations
count = 0
while get_control(msys, 'bool', 'hasData'):
msys.tick()
vals = get_control(msys, 'realvec', 'processedData')
sum_vals = [old + new for old, new in izip(sum_vals, vals)]
sum_of_squares = [old + new**2 for old, new in izip(sum_of_squares, vals)]
count += 1
reset_msys(msys)
out = {field.name: None for field in attribute_schema}
for i, attr in enumerate(obs_names(msys)):
avg = sum_vals[i] / count
squares_avg = sum_of_squares[i] / count
out['mean_' + attr] = avg
out['stdev_' + attr] = math.sqrt(squares_avg - avg**2)
out[commonPath] = filename
out[commonArtist] = None
out[commonTitle] = None
db.add_song(out)
