def calc_stack(self, before):
stack = list(before)
if self.name in basic_instr_inv or self.name in ex_instr:
if self.name in ex_instr:
push, pop = getattr(self, 'cmd_getstackops_' + self.name)(*self.args)
else:
push, pop = basic_instr_inv[self.name]
try:
self.inreg = list(reversed(utils.pop_many(stack, pop)))
except IndexError:
raise IRError('Pop from empty stack at %s' % self, self)
max_reg = max(stack + [self.varcount - 1])
self.outreg = list(xrange(max_reg + 1, max_reg + 1 + push))
stack.extend(self.outreg)
else:
getattr(self, 'cmd_run_' + self.name)(stack)
self.name = 'nop' # not pretty
return tuple(stack)
def generate_random_audio_track(out_path,
max_len_smpl,
midi_range,
overlap_list,
overlap_prob,
packed,
sr=16000,
zero_padding=0):
min_midi = min(midi_range)
max_midi = max(midi_range)
n_midi = max_midi - min_midi
midi_list = []
sound = np.zeros(zero_padding)
meta_dict = []
idx = 0
# Loop generating audio and meta
while len(sound) <= max_len_smpl:
if not midi_list:
midi_list = random.sample(range(min_midi, max_midi), n_midi)
fragment_overlap = random.choices(overlap_list,
weights=overlap_prob,
k=1)[0]
fragment_midi = pop_many(midi_list, fragment_overlap)
fragment = RandomChord(idx, fragment_midi, packed, sr=sr)
fragment_sound = fragment.generate_audio()
current_time = librosa.samples_to_time(len(sound), sr=sr)
sound = np.concatenate((sound, fragment_sound))
meta_dict = append_fragment_to_meta(meta_dict, fragment, out_path,
current_time)
print(f" Appending audio at: {current_time}")
idx += 1
return sound, meta_dict
def cmd_run_swapn(self, stack): n, = self.args list = utils.pop_many(stack, n) stack.extend(list)