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import os
import sys
import numpy as np
import pickle
sys.path.append('../../')
from src.music.utils import get_out_path
from src.music.config import ALL_NOISE, ALL_AUGMENTATIONS, NB_AUG, NOISE_INJECTED
from src.music.utilities.midi_processor import encode_midi_structured, encode_midi_chunks_structured
nb_noise = ALL_NOISE.shape[0]
nb_aug = ALL_AUGMENTATIONS.shape[0]
def sample_augmentations(n):
return ALL_AUGMENTATIONS[np.random.choice(np.arange(nb_aug), size=n, replace=False)]
def sample_noise():
return ALL_NOISE[np.random.choice(np.arange(nb_noise))]
def processed2encoded(processed_path, encoded_path=None, augmentation=False, nb_aug=None, noise_injection=False, verbose=False, level=0):
assert processed_path.split('.')[-1] in ['mid', 'midi']
if not encoded_path:
encoded_path, _, _ = get_out_path(in_path=processed_path, in_word='processed', out_word='encoded', out_extension='.pickle')
if verbose: print(' ' * level + f'Encoding {processed_path}')
if os.path.exists(encoded_path):
if verbose: print(' ' * (level + 2) + 'Midi file is already encoded.')
return encoded_path, ''
if augmentation:
assert isinstance(nb_aug, int)
error_msg = 'Error in encoding. '
# try:
error_msg = 'Error in encoding midi?'
nb_noise = 1 if noise_injection else 0
encoded_main, encoded_aug, encoded_noisy = encode_midi_structured(processed_path, nb_aug, nb_noise)
# make sure augmentations are not out of bounds
error_msg = ' Nope. Error in saving encoding?'
with open(encoded_path, 'wb') as f:
pickle.dump(dict(main=encoded_main, aug=encoded_aug, noisy=encoded_noisy), f)
error_msg = ' Nope.'
if verbose:
extra = f' Saved to {encoded_path}' if encoded_path else ''
print(' ' * (level + 2) + f'Success! {extra}')
return encoded_path, ''
#except:
# if verbose: print(' ' * (level + 2) + 'Transcription failed.')
# if os.path.exists(encoded_path):
# os.remove(encoded_path)
#return None, error_msg + ' Yes.'
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