class VAEDecoder():
def __init__(self,
model_path=None,
config_name=None,
output_dir=None,
max_batch_size=8,
config_map=configs.CONFIG_MAP):
if config_name not in config_map:
raise ValueError('Invalid config name: %s' % config_name)
self.config = config_map[config_name]
self.config.data_converter.max_tensors_per_item = None
self.output_dir = os.path.expanduser(output_dir)
checkpoint_path = os.path.expanduser(model_path)
self.model = TrainedModel(self.config,
batch_size=max_batch_size,
checkpoint_dir_or_path=checkpoint_path)
self.z_size = self.model._config.hparams.z_size
def decode(self, z: np.ndarray):
if len(z.shape) == 2 and z.shape[1] == self.z_size:
# z is a single latent space
midi = self._decode(z)
return midi
else:
raise ValueError("z has inappropriate shape: {0}.\n"
"Should be: (n_samples, {0})".format(
", ".join(z.shape), self.z_size))
def _decode(self, z):
return self.model.decode(z, length=self.config.hparams.max_seq_len)
def _write(self, midi):
date_and_time = time.strftime('%Y-%m-%d_%H%M%S')
basename = os.path.join(
self.output_dir, '{}-*-{:03d}.mid'.format(date_and_time,
len(midi)))
for i, m in enumerate(midi):
mm.sequence_proto_to_midi_file(
m, basename.replace('*', '{:03d}'.format(i)))
def run(config_map):
"""Load model params, save config file and start trainer.
Args:
config_map: Dictionary mapping configuration name to Config object.
Raises:
ValueError: if required flags are missing or invalid.
"""
date_and_time = time.strftime('%Y-%m-%d_%H%M%S')
if FLAGS.run_dir is None == FLAGS.checkpoint_file is None:
raise ValueError(
'Exactly one of `--run_dir` or `--checkpoint_file` must be specified.'
)
if FLAGS.output_dir is None:
raise ValueError('`--output_dir` is required.')
tf.gfile.MakeDirs(FLAGS.output_dir)
if FLAGS.mode != 'sample' and FLAGS.mode != 'interpolate' and FLAGS.mode != 'isample':
raise ValueError('Invalid value for `--mode`: %s' % FLAGS.mode)
if FLAGS.config not in config_map:
raise ValueError('Invalid config name: %s' % FLAGS.config)
config = config_map[FLAGS.config]
config.data_converter.max_tensors_per_item = None
if FLAGS.mode == 'interpolate':
if FLAGS.input_midi_1 is None or FLAGS.input_midi_2 is None:
raise ValueError(
'`--input_midi_1` and `--input_midi_2` must be specified in '
'`interpolate` mode.')
input_midi_1 = os.path.expanduser(FLAGS.input_midi_1)
input_midi_2 = os.path.expanduser(FLAGS.input_midi_2)
if not os.path.exists(input_midi_1):
raise ValueError('Input MIDI 1 not found: %s' % FLAGS.input_midi_1)
if not os.path.exists(input_midi_2):
raise ValueError('Input MIDI 2 not found: %s' % FLAGS.input_midi_2)
input_1 = mm.midi_file_to_note_sequence(input_midi_1)
input_2 = mm.midi_file_to_note_sequence(input_midi_2)
def _check_extract_examples(input_ns, path, input_number):
"""Make sure each input returns exactly one example from the converter."""
tensors = config.data_converter.to_tensors(input_ns).outputs
if not tensors:
print(
'MusicVAE configs have very specific input requirements. Could not '
'extract any valid inputs from `%s`. Try another MIDI file.'
% path)
sys.exit()
elif len(tensors) > 1:
basename = os.path.join(
FLAGS.output_dir,
'%s_input%d-extractions_%s-*-of-%03d.mid' %
(FLAGS.config, input_number, date_and_time, len(tensors)))
for i, ns in enumerate(
config.data_converter.to_notesequences(tensors)):
mm.sequence_proto_to_midi_file(
ns, basename.replace('*', '%03d' % i))
print(
'%d valid inputs extracted from `%s`. Outputting these potential '
'inputs as `%s`. Call script again with one of these instead.'
% (len(tensors), path, basename))
sys.exit()
logging.info(
'Attempting to extract examples from input MIDIs using config `%s`...',
FLAGS.config)
_check_extract_examples(input_1, FLAGS.input_midi_1, 1)
_check_extract_examples(input_2, FLAGS.input_midi_2, 2)
logging.info('Loading model...')
if FLAGS.run_dir:
checkpoint_dir_or_path = os.path.expanduser(
os.path.join(FLAGS.run_dir, 'train'))
else:
checkpoint_dir_or_path = os.path.expanduser(FLAGS.checkpoint_file)
model = TrainedModel(config,
batch_size=min(FLAGS.max_batch_size,
FLAGS.num_outputs),
checkpoint_dir_or_path=checkpoint_dir_or_path)
if FLAGS.mode == 'interpolate':
logging.info('Interpolating...')
_, mu, _ = model.encode([input_1, input_2])
z = np.array([
_slerp(mu[0], mu[1], t)
for t in np.linspace(0, 1, FLAGS.num_outputs)
])
results = model.decode(length=config.hparams.max_seq_len,
z=z,
temperature=FLAGS.temperature)
elif FLAGS.mode == 'sample':
logging.info('Sampling...')
results = model.sample(n=FLAGS.num_outputs,
length=config.hparams.max_seq_len,
temperature=FLAGS.temperature)
elif FLAGS.mode == 'isample':
assert FLAGS.input_image is not None, 'Provide an image to sample from'
assert FLAGS.input_midi_1 is not None, 'Provide a music to sample from'
logging.info('Sampling z from image vae...')
img = cv2.imread(FLAGS.input_image) / 255.
img = np.asarray(cv2.resize(img, (320, 240)))
img = np.expand_dims(img, axis=0)
print(img.shape)
latent = None
input_midi_1 = os.path.expanduser(FLAGS.input_midi_1)
input_1 = mm.midi_file_to_note_sequence(input_midi_1)
def _check_extract_examples(input_ns, path, input_number):
"""Make sure each input returns exactly one example from the converter."""
tensors = config.data_converter.to_tensors(input_ns).outputs
if not tensors:
print(
'MusicVAE configs have very specific input requirements. Could not '
'extract any valid inputs from `%s`. Try another MIDI file.'
% path)
sys.exit()
elif len(tensors) > 1:
basename = os.path.join(
FLAGS.output_dir,
'%s_input%d-extractions_%s-*-of-%03d.mid' %
(FLAGS.config, input_number, date_and_time, len(tensors)))
for i, ns in enumerate(
config.data_converter.to_notesequences(tensors)):
mm.sequence_proto_to_midi_file(
ns, basename.replace('*', '%03d' % i))
print(
'%d valid inputs extracted from `%s`. Outputting these potential '
'inputs as `%s`. Call script again with one of these instead.'
% (len(tensors), path, basename))
sys.exit()
logging.info(
'Attempting to extract examples from input MIDIs using config `%s`...',
FLAGS.config)
_check_extract_examples(input_1, FLAGS.input_midi_1, 1)
with model._sess as sess:
z_music, mu_music, sigma_music = model.encode([input_1])
dataset = tf.data.Dataset.from_tensors(img.astype(np.float32))
img = dataset.repeat().make_one_shot_iterator().get_next()
mu, sigma = model.vae.encode(img, config.hparams)
mu = mu.eval()
sigma = sigma.eval()
latent = ds.MultivariateNormalDiag(loc=mu + mu_music,
scale_diag=sigma +
sigma_music).sample().eval()
results = model.decode(length=config.hparams.max_seq_len,
z=latent,
temperature=FLAGS.temperature)
print(results)
basename = os.path.join(
FLAGS.output_dir, '%s_%s_%s-*-of-%03d.mid' %
(FLAGS.config, FLAGS.mode, date_and_time, FLAGS.num_outputs))
logging.info('Outputting %d files as `%s`...', FLAGS.num_outputs, basename)
for i, ns in enumerate(results):
mm.sequence_proto_to_midi_file(ns, basename.replace('*', '%03d' % i))
logging.info('Done.')
def run(config_map):
"""Load model params, save config file and start trainer.
Args:
config_map: Dictionary mapping configuration name to Config object.
Raises:
ValueError: if required flags are missing or invalid.
"""
date_and_time = time.strftime('%Y-%m-%d_%H%M%S')
if FLAGS.run_dir is None == FLAGS.checkpoint_file is None:
raise ValueError(
'Exactly one of `--run_dir` or `--checkpoint_file` must be specified.')
if FLAGS.output_dir is None:
raise ValueError('`--output_dir` is required.')
tf.gfile.MakeDirs(FLAGS.output_dir)
if FLAGS.mode != 'sample' and FLAGS.mode != 'interpolate':
raise ValueError('Invalid value for `--mode`: %s' % FLAGS.mode)
if FLAGS.config not in config_map:
raise ValueError('Invalid config name: %s' % FLAGS.config)
config = config_map[FLAGS.config]
config.data_converter.max_tensors_per_item = None
if FLAGS.mode == 'interpolate':
if FLAGS.input_midi_1 is None or FLAGS.input_midi_2 is None:
raise ValueError(
'`--input_midi_1` and `--input_midi_2` must be specified in '
'`interpolate` mode.')
input_midi_1 = os.path.expanduser(FLAGS.input_midi_1)
input_midi_2 = os.path.expanduser(FLAGS.input_midi_2)
if not os.path.exists(input_midi_1):
raise ValueError('Input MIDI 1 not found: %s' % FLAGS.input_midi_1)
if not os.path.exists(input_midi_2):
raise ValueError('Input MIDI 2 not found: %s' % FLAGS.input_midi_2)
input_1 = note_seq.midi_file_to_note_sequence(input_midi_1)
input_2 = note_seq.midi_file_to_note_sequence(input_midi_2)
def _check_extract_examples(input_ns, path, input_number):
"""Make sure each input returns exactly one example from the converter."""
tensors = config.data_converter.to_tensors(input_ns).outputs
if not tensors:
print(
'MusicVAE configs have very specific input requirements. Could not '
'extract any valid inputs from `%s`. Try another MIDI file.' % path)
sys.exit()
elif len(tensors) > 1:
basename = os.path.join(
FLAGS.output_dir,
'%s_input%d-extractions_%s-*-of-%03d.mid' %
(FLAGS.config, input_number, date_and_time, len(tensors)))
for i, ns in enumerate(config.data_converter.from_tensors(tensors)):
note_seq.sequence_proto_to_midi_file(
ns, basename.replace('*', '%03d' % i))
print(
'%d valid inputs extracted from `%s`. Outputting these potential '
'inputs as `%s`. Call script again with one of these instead.' %
(len(tensors), path, basename))
sys.exit()
logging.info(
'Attempting to extract examples from input MIDIs using config `%s`...',
FLAGS.config)
_check_extract_examples(input_1, FLAGS.input_midi_1, 1)
_check_extract_examples(input_2, FLAGS.input_midi_2, 2)
logging.info('Loading model...')
if FLAGS.run_dir:
checkpoint_dir_or_path = os.path.expanduser(
os.path.join(FLAGS.run_dir, 'train'))
else:
checkpoint_dir_or_path = os.path.expanduser(FLAGS.checkpoint_file)
model = TrainedModel(
config, batch_size=min(FLAGS.max_batch_size, FLAGS.num_outputs),
checkpoint_dir_or_path=checkpoint_dir_or_path)
if FLAGS.mode == 'interpolate':
logging.info('Interpolating...')
_, mu, _ = model.encode([input_1, input_2])
z = np.array([
_slerp(mu[0], mu[1], t) for t in np.linspace(0, 1, FLAGS.num_outputs)])
results = model.decode(
length=config.hparams.max_seq_len,
z=z,
temperature=FLAGS.temperature)
elif FLAGS.mode == 'sample':
logging.info('Sampling...')
results = model.sample(
n=FLAGS.num_outputs,
length=config.hparams.max_seq_len,
temperature=FLAGS.temperature)
basename = os.path.join(
FLAGS.output_dir,
'%s_%s_%s-*-of-%03d.mid' %
(FLAGS.config, FLAGS.mode, date_and_time, FLAGS.num_outputs))
logging.info('Outputting %d files as `%s`...', FLAGS.num_outputs, basename)
for i, ns in enumerate(results):
note_seq.sequence_proto_to_midi_file(ns, basename.replace('*', '%03d' % i))
logging.info('Done.')
input_4 = mm.midi_file_to_note_sequence(input_midi_4)
#_check_extract_examples(input_1, path_midi_1, 1)
#_check_extract_examples(input_2, path_midi_2, 2)
#_, mu, _ = model.encode([input_1, input_2])
z, mu, _ = model.encode([input_1, input_2, input_3, input_4])
# Get the new 'z' with the interpolation values
z_new = z[0] * float(arguments['<val1>']) + z[1] * float(
arguments['<val2>']) + z[2] * float(arguments['<val3>']) + z[3] * float(
arguments['<val4>'])
z_new_2 = z_new + 0.05
z_new = np.expand_dims(z_new, axis=0)
z_new_2 = np.expand_dims(z_new_2, axis=0)
result = model.decode(length=config.hparams.max_seq_len,
z=z_new,
temperature=temperature)
result_2 = model.decode(length=config.hparams.max_seq_len,
z=z_new_2,
temperature=temperature)
seq_result = mm.sequences_lib.concatenate_sequences([result[0], result_2[0]])
print(seq_result)
# OPTIONAL - Comment if you dont want to output a midifile
mm.sequence_proto_to_midi_file(
seq_result,
'/Users/prang/code/gitlab-acid/acids-live/mathieu_MusicVAE/MVAE_output/test.mid'
)
str_out = ''
def run(config_map):
"""Load model params, save config file and start trainer.
Args:
config_map: Dictionary mapping configuration name to Config object.
Raises:
ValueError: if required flags are missing or invalid.
"""
date_and_time = time.strftime('%Y-%m-%d_%H%M%S')
if FLAGS.run_dir is None == FLAGS.checkpoint_file is None:
raise ValueError(
'Exactly one of `--run_dir` or `--checkpoint_file` must be specified.')
if FLAGS.output_dir is None:
raise ValueError('`--output_dir` is required.')
tf.gfile.MakeDirs(FLAGS.output_dir)
if FLAGS.mode != 'sample' and FLAGS.mode != 'interpolate':
raise ValueError('Invalid value for `--mode`: %s' % FLAGS.mode)
if FLAGS.config not in config_map:
raise ValueError('Invalid config name: %s' % FLAGS.config)
config = config_map[FLAGS.config]
config.data_converter.max_tensors_per_item = None
if FLAGS.mode == 'interpolate':
if FLAGS.input_midi_1 is None or FLAGS.input_midi_2 is None:
raise ValueError(
'`--input_midi_1` and `--input_midi_2` must be specified in '
'`interpolate` mode.')
input_midi_1 = os.path.expanduser(FLAGS.input_midi_1)
input_midi_2 = os.path.expanduser(FLAGS.input_midi_2)
if not os.path.exists(input_midi_1):
raise ValueError('Input MIDI 1 not found: %s' % FLAGS.input_midi_1)
if not os.path.exists(input_midi_2):
raise ValueError('Input MIDI 2 not found: %s' % FLAGS.input_midi_2)
input_1 = mm.midi_file_to_note_sequence(input_midi_1)
input_2 = mm.midi_file_to_note_sequence(input_midi_2)
def _check_extract_examples(input_ns, path, input_number):
"""Make sure each input returns exactly one example from the converter."""
tensors = config.data_converter.to_tensors(input_ns).outputs
if not tensors:
print(
'MusicVAE configs have very specific input requirements. Could not '
'extract any valid inputs from `%s`. Try another MIDI file.' % path)
sys.exit()
elif len(tensors) > 1:
basename = os.path.join(
FLAGS.output_dir,
'%s_input%d-extractions_%s-*-of-%03d.mid' %
(FLAGS.config, input_number, date_and_time, len(tensors)))
for i, ns in enumerate(config.data_converter.to_notesequences(tensors)):
mm.sequence_proto_to_midi_file(ns, basename.replace('*', '%03d' % i))
print(
'%d valid inputs extracted from `%s`. Outputting these potential '
'inputs as `%s`. Call script again with one of these instead.' %
(len(tensors), path, basename))
sys.exit()
logging.info(
'Attempting to extract examples from input MIDIs using config `%s`...',
FLAGS.config)
_check_extract_examples(input_1, FLAGS.input_midi_1, 1)
_check_extract_examples(input_2, FLAGS.input_midi_2, 2)
logging.info('Loading model...')
if FLAGS.run_dir:
checkpoint_dir_or_path = os.path.expanduser(
os.path.join(FLAGS.run_dir, 'train'))
else:
checkpoint_dir_or_path = os.path.expanduser(FLAGS.checkpoint_file)
model = TrainedModel(
config, batch_size=min(FLAGS.max_batch_size, FLAGS.num_outputs),
checkpoint_dir_or_path=checkpoint_dir_or_path)
if FLAGS.mode == 'interpolate':
logging.info('Interpolating...')
_, mu, _ = model.encode([input_1, input_2])
z = np.array([
_slerp(mu[0], mu[1], t) for t in np.linspace(0, 1, FLAGS.num_outputs)])
results = model.decode(
length=config.hparams.max_seq_len,
z=z,
temperature=FLAGS.temperature)
elif FLAGS.mode == 'sample':
logging.info('Sampling...')
results = model.sample(
n=FLAGS.num_outputs,
length=config.hparams.max_seq_len,
temperature=FLAGS.temperature)
basename = os.path.join(
FLAGS.output_dir,
'%s_%s_%s-*-of-%03d.mid' %
(FLAGS.config, FLAGS.mode, date_and_time, FLAGS.num_outputs))
logging.info('Outputting %d files as `%s`...', FLAGS.num_outputs, basename)
for i, ns in enumerate(results):
mm.sequence_proto_to_midi_file(ns, basename.replace('*', '%03d' % i))
logging.info('Done.')
class MVAEServer(OSCServer):
'''
Key class for the Flow synthesizer server.
Example :
>>> server = FlowServer(1234, 1235) # Creating server
>>> server.run() # Running server
'''
def __init__(self, *args, **kwargs):
# Command-line arguments
#self.args = kwargs.get('args')
#self.model = kwargs.get('model')
# Init model
self.temperature = 1
self._modelpath = "/Users/carsault/Dropbox/work/code/gitlab/cat-mel_2bar_big.tar"
self.config_name = 'cat-mel_2bar_big'
self.config = configs.CONFIG_MAP[self.config_name]
self.config.data_converter.max_tensors_per_item = None
checkpoint_dir_or_path = os.path.expanduser(self._modelpath)
print('Loading model')
self.model = TrainedModel(self.config, batch_size=1,checkpoint_dir_or_path=checkpoint_dir_or_path)
# Init encoded files
self.style_name = ['blues', 'classic', 'country', 'jazz', 'poprock','world', 'game', 'empty', 'RnB']
input_files_list = ["./MVAE_input_valid/Blues1.mid",
"./MVAE_input_valid/classic1.mid",
"./MVAE_input_valid/country1.mid",
"./MVAE_input_valid/jazz1.mid",
"./MVAE_input_valid/poprock1.mid",
"./MVAE_input_valid/World1.mid",
"./MVAE_input_valid/game1.mid",
"./MVAE_input_valid/empty1.mid",
"./MVAE_input_valid/RnB1.mid"]
self.input_z_list = []
for file in input_files_list:
input_midi = os.path.expanduser(file)
inp = mm.midi_file_to_note_sequence(input_midi)
z, mu, _ = self.model.encode([inp])
self.input_z_list.append(z[0])
# Init OSC server
super(MVAEServer, self).__init__(*args)
self.print('Server is ready.')
def init_bindings(self, osc_attributes=[]):
""" Set of OSC messages handled """
super(MVAEServer, self).init_bindings(self.osc_attributes)
# Send basic variables
self.dispatcher.map('/decode', osc_parse(self.decode))
def decode(self, id1, w1, id2, w2, id3, w3, id4, w4):
z1 = self.input_z_list[self.style_name.index(id1)]
z2 = self.input_z_list[self.style_name.index(id2)]
z3 = self.input_z_list[self.style_name.index(id3)]
z4 = self.input_z_list[self.style_name.index(id4)]
z_new = z1*float(w1) + z2*float(w2) + z3*float(w3) + z4*float(w4)
z_new_2 = z_new + 0.05
z_new = np.expand_dims(z_new, axis=0)
z_new_2 = np.expand_dims(z_new_2, axis=0)
result = self.model.decode(length=self.config.hparams.max_seq_len,z=z_new,temperature=self.temperature)
result_2 = self.model.decode(length=self.config.hparams.max_seq_len,z=z_new_2,temperature=self.temperature)
seq_result = mm.sequences_lib.concatenate_sequences([result[0], result_2[0]])
str_out = ''
for note in seq_result.notes:
str_out = str_out + ' ' + str(note.start_time/2) + ' ' + str(note.end_time/2 - note.start_time/2) + ' ' + str(note.pitch)
str_out = str_out[1:]
self.send('/decode', str_out)
# Return current model state
def get_state(self):
""" Send set of properties of the current model """
if self._model is not None:
latent_dims = self._model.latent_dims
regression_dims = self._model.regression_dims
else:
latent_dims = self._model.latent_dims
regression_dims = self._model.regression_dims
state = {'latent_dims': latent_dims,
'regression_dims': regression_dims}
state_str = dict2str(state)
self.send('/state', state_str)
self.print('Server is ready.')
return state
"""
###################
Core functionalities (load, encode, decode)
###################
"""
def load_preset(self, hash_v):
""" Load a given preset based on its hash string """
# Retrieve correct index
l_idx = self.analysis['hash_loaders'][hash_v]
cur_file = self.dataset[l_idx[0]].dataset.datadir + '/raw/' + self.dataset[l_idx[0]].dataset.data_files[l_idx[1]]
loaded = np.load(cur_file, allow_pickle=True)
params = loaded['param'].item()
params = torch.Tensor([params[p] for p in self.param_names])
out_list = []
# Create dict out of params
for p in range(params.shape[0]):
out_list.append(self.param_names[p])
out_list.append(float(params[p]))
# Handle variables
self.send('/params', out_list)
cur_z = self.analysis['final_z'][l_idx[2]]
if (self.freeze_mode):
self.prev_z = torch.Tensor(1, cur_z.shape[0])
self.prev_z[0] = cur_z
print(self.prev_z[0])
# Resend full z position
out_list = []
# Create dict out of params
for p in range(cur_z.shape[0]):
out_list.append('x%d'%(p))
out_list.append(float(cur_z[self.analysis['d_idx'][p]]))
# Handle variables
self.send('/z_pos', out_list)
def run(config_map):
'''
Load model params, save config file and start trainer.
Args:
config_map: Dictionary mapping configuration name to Config object.
Raises:
ValueError: if required flags are missing or invalid.
'''
date_and_time = time.strftime('%Y-%m-%d_%H%M%S')
if FLAGS.run_dir is None == FLAGS.checkpoint_file is None:
raise ValueError(
'Exactly one of `--run_dir` or `--checkpoint_file` must be specified.'
)
if FLAGS.output_dir is None:
raise ValueError('`--output_dir` is required.')
tf.gfile.MakeDirs(FLAGS.output_dir)
if FLAGS.example_midi_dir is None:
raise ValueError('example_midi_dir is required.')
if FLAGS.config not in config_map:
raise ValueError('Invalid config name: %s' % FLAGS.config)
config = config_map[FLAGS.config]
config.data_converter.max_tensors_per_item = None
config_midime = MidiMeConfig
if FLAGS.config_midime is not None:
update(config_midime, FLAGS.config_midime)
logging.info('Loading model...')
if FLAGS.run_dir:
checkpoint_dir_or_path = os.path.expanduser(
os.path.join(FLAGS.run_dir, 'train'))
else:
checkpoint_dir_or_path = os.path.expanduser(FLAGS.checkpoint_file)
model = TrainedModel(config,
batch_size=min(FLAGS.max_batch_size,
FLAGS.num_outputs),
checkpoint_dir_or_path=checkpoint_dir_or_path)
example_sequences = []
example_midi_dir = os.path.expanduser(FLAGS.example_midi_dir)
files_in_dir = tf.gfile.ListDirectory(os.path.join(example_midi_dir))
for file_in_dir in files_in_dir:
full_file_path = os.path.join(example_midi_dir, file_in_dir)
try:
example_sequences.append(
mm.midi_file_to_note_sequence(full_file_path))
except:
raise ValueError('%s' % full_file_path)
trimSilence(example_sequences)
for i in example_sequences:
i.tempos[0].time = 0
del i.tempos[1:]
chunks = getChunks(example_sequences, config.hparams.max_seq_len)
latent = model.encode(chunks)[0]
midime = train_model(latent, config_midime)
s = midime.sample(FLAGS.num_outputs)
samples = model.decode(s, config.hparams.max_seq_len)
basename = os.path.join(
FLAGS.output_dir, '%s_%s-*-of-%03d.mid' %
(FLAGS.config, date_and_time, FLAGS.num_outputs))
logging.info('Outputting %d files as `%s`...', FLAGS.num_outputs, basename)
for i, ns in enumerate(samples):
mm.sequence_proto_to_midi_file(ns, basename.replace('*', '%03d' % i))
logging.info('Done.')
model = TrainedModel(config,
batch_size=min(FLAGS.max_batch_size, FLAGS.num_outputs),
checkpoint_dir_or_path=checkpoint_dir_or_path)
"""
Encodes a collection of NoteSequences into latent vectors.
Args:
note_sequences: A collection of NoteSequence objects to encode.
assert_same_length: Whether to raise an AssertionError if all of the
extracted sequences are not the same length.
Returns:
The encoded `z`, `mu`, and `sigma` values. (as tuple)
"""
logging.info('Encoding...')
#_, mu, _ = model.encode([input_1, input_2])
z, mu, sigma = model.encode([input_1])
#z = np.array([ # z = collection of latent vectors to decode
# _slerp(mu[0], mu[1], t) for t in np.linspace(0, 1, FLAGS.num_outputs)]) #Spherical linear interpolation
results = model.decode(length=config.hparams.max_seq_len,
z=z,
temperature=FLAGS.temperature)
basename = os.path.join(
FLAGS.output_dir, '%s_%s_%s-*-of-%03d.mid' %
(FLAGS.config, FLAGS.mode, date_and_time, FLAGS.num_outputs))
logging.info('Outputting %d files as `%s`...', FLAGS.num_outputs, basename)
for i, ns in enumerate(results):
mm.sequence_proto_to_midi_file(ns, basename.replace('*', '%03d' % i))
logging.info('Done.')
