def test_jams():
data = dict(time=[0.0, 1.0],
duration=[0.5, 0.5],
value=['one', 'two'],
confidence=[0.9, 0.9])
real_ann = jams.AnnotationArray(
annotations=[jams.Annotation('tag_open', data=data)])
meta = dict(title='Test track',
artist='Test artist',
release='Test release',
duration=31.3)
real_fm = jams.FileMetadata(**meta)
real_sandbox = jams.Sandbox(description='none')
def __test(annotations, file_metadata, sandbox):
jam = jams.JAMS(annotations=annotations,
file_metadata=file_metadata,
sandbox=sandbox)
if file_metadata is not None:
eq_(dict(file_metadata), dict(jam.file_metadata))
if sandbox is not None:
eq_(dict(sandbox), dict(jam.sandbox))
if annotations is not None:
eq_(annotations, jam.annotations)
for ann in [None, real_ann]:
for fm in [None, real_fm]:
for sandbox in [None, real_sandbox]:
yield __test, ann, fm, sandbox
def fill_global_metadata(jam, metadata, dur):
"""Fills the global metada into the JAMS jam."""
meta = jams.FileMetadata(title=metadata[7],
artist=metadata[8],
duration=dur,
jams_version=jams.version.version)
jam.file_metadata = meta
def process_track(input_dir, output_dir, metadata, tags, compress):
# Construct track metadata
duration = get_track_duration(
os.path.join(input_dir, 'audio', metadata['filename']))
file_meta = jams.FileMetadata(title=metadata['title'],
artist=metadata['artist'],
duration=duration,
identifiers=jams.Sandbox(id=metadata.name))
# Get the tag annotation
amd = jams.AnnotationMetadata(curator=jams.Curator(**__curator__),
corpus=__corpus__)
ann = jams.Annotation('tag_cal10k', annotation_metadata=amd)
for tag in tags:
ann.append(time=0, duration=duration, value=tag)
jam = jams.JAMS(file_metadata=file_meta)
jam.annotations.append(ann)
jam.sandbox.content_path = metadata['filename']
save_jam(output_dir, jam, metadata.name, compress)
def test_filemetadata():
meta = dict(title='Test track',
artist='Test artist',
release='Test release',
duration=31.3)
fm = jams.FileMetadata(**meta)
dict_fm = dict(fm)
for k in meta:
assert meta[k] == dict_fm[k]
def test_filemetadata_validation(strict):
# This should fail validation because null duration is not allowed
fm = jams.FileMetadata(title='Test track',
artist='Test artist',
release='Test release',
duration=None)
clean_warning_registry()
with warnings.catch_warnings(record=True) as out:
fm.validate(strict=strict)
assert len(out) > 0
assert out[0].category is UserWarning
assert 'failed validating' in str(out[0].message).lower()
def smc_file_metadata(infile):
'''Construct a metadata object from an SMC wav file'''
match = re.match('.*(?P<index>SMC_\d+).wav$', infile)
if not match:
raise RuntimeError('Could not index filename {:s}'.format(infile))
# Get the duration of the track
y, sr = librosa.load(infile, sr=None)
duration = librosa.get_duration(y=y, sr=sr)
# Format duration as time
metadata = jams.FileMetadata(title=match.group('index'), duration=duration)
return metadata
def test_jams_add_conflict(on_conflict):
fn = 'tests/fixtures/valid.jams'
# The original jam
jam = jams.load(fn)
jam_orig = jams.load(fn)
# The copy
jam2 = jams.load(fn)
jam2.file_metadata = jams.FileMetadata()
jam.add(jam2, on_conflict=on_conflict)
if on_conflict == 'overwrite':
assert jam.file_metadata == jam2.file_metadata
elif on_conflict == 'ignore':
assert jam.file_metadata == jam_orig.file_metadata
def __test_conflict(on_conflict):
fn = 'fixtures/valid.jams'
# The original jam
jam = jams.load(fn)
jam_orig = jams.load(fn)
# The copy
jam2 = jams.load(fn)
jam2.file_metadata = jams.FileMetadata()
jam.add(jam2, on_conflict=on_conflict)
if on_conflict == 'overwrite':
eq_(jam.file_metadata, jam2.file_metadata)
elif on_conflict == 'ignore':
eq_(jam.file_metadata, jam_orig.file_metadata)
def process_track(input_dir, output_dir, metadata, tags, compress):
# Construct track metadata
duration = get_track_duration(
os.path.join(input_dir, 'mp3',
os.path.extsep.join([metadata['track'], 'mp3'])))
artist, _ = metadata['track'].split('-', 1)
artist = ARTIST_MAP.get(artist, artist)
title = metadata['track'].replace('{:s}-'.format(artist), '')
artist = artist.replace('_', ' ')
title = title.replace('_', ' ')
file_meta = jams.FileMetadata(title=title,
artist=artist,
duration=duration)
# Get the tag annotation
amd = jams.AnnotationMetadata(curator=jams.Curator(**__curator__),
corpus=__corpus__)
ann = jams.Annotation('tag_cal500', annotation_metadata=amd)
for value, confidence in tags.iteritems():
ann.append(time=0,
duration=duration,
value=value,
confidence=confidence)
jam = jams.JAMS(file_metadata=file_meta)
jam.annotations.append(ann)
jam.sandbox.content_path = metadata['track']
save_jam(output_dir, jam, metadata.name, compress)
def pred_to_jam(beats, pred):
time = 0.0
label = ud.labels[pred[0]]
observations = []
n = len(pred)
for i in range(0,n):
if ud.labels[pred[i]] == label: continue
else:
new_time = beats[i]
new_label = ud.labels[pred[i]]
observations.append(jams.Observation(time, new_time-time, label, None))
time = new_time
label = new_label
observations.append(jams.Observation(time, beats[-1]-time, ud.labels[pred[-1]], None))
annotation = jams.Annotation("segment_open"
, observations
, jd.get_annotation_metadata()
, jd.get_sandbox())
jam = jams.JAMS([annotation], jams.FileMetadata(duration=beats[-1]))
return jam
def file_metadata():
return jams.FileMetadata(title='Test track', artist='Test artist',
release='Test release', duration=31.3)
