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| import os | |
| import glob | |
| import sys | |
| import argparse | |
| import logging | |
| import json | |
| import subprocess | |
| import numpy as np | |
| from scipy.io.wavfile import read | |
| import torch | |
| MATPLOTLIB_FLAG = False | |
| logger = logging.getLogger(__name__) | |
| def load_checkpoint(checkpoint_path, model, optimizer=None, skip_optimizer=False): | |
| assert os.path.isfile(checkpoint_path) | |
| checkpoint_dict = torch.load(checkpoint_path, map_location='cpu') | |
| iteration = checkpoint_dict['iteration'] | |
| learning_rate = checkpoint_dict['learning_rate'] | |
| if optimizer is not None and not skip_optimizer and checkpoint_dict['optimizer'] is not None: | |
| optimizer.load_state_dict(checkpoint_dict['optimizer']) | |
| elif optimizer is None and not skip_optimizer: | |
| #else: Disable this line if Infer and resume checkpoint,then enable the line upper | |
| new_opt_dict = optimizer.state_dict() | |
| new_opt_dict_params = new_opt_dict['param_groups'][0]['params'] | |
| new_opt_dict['param_groups'] = checkpoint_dict['optimizer']['param_groups'] | |
| new_opt_dict['param_groups'][0]['params'] = new_opt_dict_params | |
| optimizer.load_state_dict(new_opt_dict) | |
| saved_state_dict = checkpoint_dict['model'] | |
| if hasattr(model, 'module'): | |
| state_dict = model.module.state_dict() | |
| else: | |
| state_dict = model.state_dict() | |
| new_state_dict = {} | |
| for k, v in state_dict.items(): | |
| try: | |
| #assert "emb_g" not in k | |
| # print("load", k) | |
| new_state_dict[k] = saved_state_dict[k] | |
| assert saved_state_dict[k].shape == v.shape, (saved_state_dict[k].shape, v.shape) | |
| except: | |
| logger.error("%s is not in the checkpoint" % k) | |
| new_state_dict[k] = v | |
| if hasattr(model, 'module'): | |
| model.module.load_state_dict(new_state_dict, strict=False) | |
| else: | |
| model.load_state_dict(new_state_dict, strict=False) | |
| logger.info("Loaded checkpoint '{}' (iteration {})".format( | |
| checkpoint_path, iteration)) | |
| return model, optimizer, learning_rate, iteration | |
| def save_checkpoint(model, optimizer, learning_rate, iteration, checkpoint_path): | |
| logger.info("Saving model and optimizer state at iteration {} to {}".format( | |
| iteration, checkpoint_path)) | |
| if hasattr(model, 'module'): | |
| state_dict = model.module.state_dict() | |
| else: | |
| state_dict = model.state_dict() | |
| torch.save({'model': state_dict, | |
| 'iteration': iteration, | |
| 'optimizer': optimizer.state_dict(), | |
| 'learning_rate': learning_rate}, checkpoint_path) | |
| def summarize(writer, global_step, scalars={}, histograms={}, images={}, audios={}, audio_sampling_rate=22050): | |
| for k, v in scalars.items(): | |
| writer.add_scalar(k, v, global_step) | |
| for k, v in histograms.items(): | |
| writer.add_histogram(k, v, global_step) | |
| for k, v in images.items(): | |
| writer.add_image(k, v, global_step, dataformats='HWC') | |
| for k, v in audios.items(): | |
| writer.add_audio(k, v, global_step, audio_sampling_rate) | |
| def latest_checkpoint_path(dir_path, regex="G_*.pth"): | |
| f_list = glob.glob(os.path.join(dir_path, regex)) | |
| f_list.sort(key=lambda f: int("".join(filter(str.isdigit, f)))) | |
| x = f_list[-1] | |
| print(x) | |
| return x | |
| def plot_spectrogram_to_numpy(spectrogram): | |
| global MATPLOTLIB_FLAG | |
| if not MATPLOTLIB_FLAG: | |
| import matplotlib | |
| matplotlib.use("Agg") | |
| MATPLOTLIB_FLAG = True | |
| mpl_logger = logging.getLogger('matplotlib') | |
| mpl_logger.setLevel(logging.WARNING) | |
| import matplotlib.pylab as plt | |
| import numpy as np | |
| fig, ax = plt.subplots(figsize=(10, 2)) | |
| im = ax.imshow(spectrogram, aspect="auto", origin="lower", | |
| interpolation='none') | |
| plt.colorbar(im, ax=ax) | |
| plt.xlabel("Frames") | |
| plt.ylabel("Channels") | |
| plt.tight_layout() | |
| fig.canvas.draw() | |
| data = np.fromstring(fig.canvas.tostring_rgb(), dtype=np.uint8, sep='') | |
| data = data.reshape(fig.canvas.get_width_height()[::-1] + (3,)) | |
| plt.close() | |
| return data | |
| def plot_alignment_to_numpy(alignment, info=None): | |
| global MATPLOTLIB_FLAG | |
| if not MATPLOTLIB_FLAG: | |
| import matplotlib | |
| matplotlib.use("Agg") | |
| MATPLOTLIB_FLAG = True | |
| mpl_logger = logging.getLogger('matplotlib') | |
| mpl_logger.setLevel(logging.WARNING) | |
| import matplotlib.pylab as plt | |
| import numpy as np | |
| fig, ax = plt.subplots(figsize=(6, 4)) | |
| im = ax.imshow(alignment.transpose(), aspect='auto', origin='lower', | |
| interpolation='none') | |
| fig.colorbar(im, ax=ax) | |
| xlabel = 'Decoder timestep' | |
| if info is not None: | |
| xlabel += '\n\n' + info | |
| plt.xlabel(xlabel) | |
| plt.ylabel('Encoder timestep') | |
| plt.tight_layout() | |
| fig.canvas.draw() | |
| data = np.fromstring(fig.canvas.tostring_rgb(), dtype=np.uint8, sep='') | |
| data = data.reshape(fig.canvas.get_width_height()[::-1] + (3,)) | |
| plt.close() | |
| return data | |
| def load_wav_to_torch(full_path): | |
| sampling_rate, data = read(full_path) | |
| return torch.FloatTensor(data.astype(np.float32)), sampling_rate | |
| def load_filepaths_and_text(filename, split="|"): | |
| with open(filename, encoding='utf-8') as f: | |
| filepaths_and_text = [line.strip().split(split) for line in f] | |
| return filepaths_and_text | |
| def get_hparams(init=True): | |
| parser = argparse.ArgumentParser() | |
| parser.add_argument('-c', '--config', type=str, default="./configs/base.json", | |
| help='JSON file for configuration') | |
| parser.add_argument('-m', '--model', type=str, required=True, | |
| help='Model name') | |
| args = parser.parse_args() | |
| model_dir = os.path.join("./logs", args.model) | |
| if not os.path.exists(model_dir): | |
| os.makedirs(model_dir) | |
| config_path = args.config | |
| config_save_path = os.path.join(model_dir, "config.json") | |
| if init: | |
| with open(config_path, "r") as f: | |
| data = f.read() | |
| with open(config_save_path, "w") as f: | |
| f.write(data) | |
| else: | |
| with open(config_save_path, "r") as f: | |
| data = f.read() | |
| config = json.loads(data) | |
| hparams = HParams(**config) | |
| hparams.model_dir = model_dir | |
| return hparams | |
| def clean_checkpoints(path_to_models='logs/44k/', n_ckpts_to_keep=2, sort_by_time=True): | |
| """Freeing up space by deleting saved ckpts | |
| Arguments: | |
| path_to_models -- Path to the model directory | |
| n_ckpts_to_keep -- Number of ckpts to keep, excluding G_0.pth and D_0.pth | |
| sort_by_time -- True -> chronologically delete ckpts | |
| False -> lexicographically delete ckpts | |
| """ | |
| import re | |
| ckpts_files = [f for f in os.listdir(path_to_models) if os.path.isfile(os.path.join(path_to_models, f))] | |
| name_key = (lambda _f: int(re.compile('._(\d+)\.pth').match(_f).group(1))) | |
| time_key = (lambda _f: os.path.getmtime(os.path.join(path_to_models, _f))) | |
| sort_key = time_key if sort_by_time else name_key | |
| x_sorted = lambda _x: sorted([f for f in ckpts_files if f.startswith(_x) and not f.endswith('_0.pth')], | |
| key=sort_key) | |
| to_del = [os.path.join(path_to_models, fn) for fn in | |
| (x_sorted('G')[:-n_ckpts_to_keep] + x_sorted('D')[:-n_ckpts_to_keep])] | |
| del_info = lambda fn: logger.info(f".. Free up space by deleting ckpt {fn}") | |
| del_routine = lambda x: [os.remove(x), del_info(x)] | |
| rs = [del_routine(fn) for fn in to_del] | |
| def get_hparams_from_dir(model_dir): | |
| config_save_path = os.path.join(model_dir, "config.json") | |
| with open(config_save_path, "r", encoding='utf-8') as f: | |
| data = f.read() | |
| config = json.loads(data) | |
| hparams = HParams(**config) | |
| hparams.model_dir = model_dir | |
| return hparams | |
| def get_hparams_from_file(config_path): | |
| with open(config_path, "r", encoding='utf-8') as f: | |
| data = f.read() | |
| config = json.loads(data) | |
| hparams = HParams(**config) | |
| return hparams | |
| def check_git_hash(model_dir): | |
| source_dir = os.path.dirname(os.path.realpath(__file__)) | |
| if not os.path.exists(os.path.join(source_dir, ".git")): | |
| logger.warn("{} is not a git repository, therefore hash value comparison will be ignored.".format( | |
| source_dir | |
| )) | |
| return | |
| cur_hash = subprocess.getoutput("git rev-parse HEAD") | |
| path = os.path.join(model_dir, "githash") | |
| if os.path.exists(path): | |
| saved_hash = open(path).read() | |
| if saved_hash != cur_hash: | |
| logger.warn("git hash values are different. {}(saved) != {}(current)".format( | |
| saved_hash[:8], cur_hash[:8])) | |
| else: | |
| open(path, "w").write(cur_hash) | |
| def get_logger(model_dir, filename="train.log"): | |
| global logger | |
| logger = logging.getLogger(os.path.basename(model_dir)) | |
| logger.setLevel(logging.DEBUG) | |
| formatter = logging.Formatter("%(asctime)s\t%(name)s\t%(levelname)s\t%(message)s") | |
| if not os.path.exists(model_dir): | |
| os.makedirs(model_dir) | |
| h = logging.FileHandler(os.path.join(model_dir, filename)) | |
| h.setLevel(logging.DEBUG) | |
| h.setFormatter(formatter) | |
| logger.addHandler(h) | |
| return logger | |
| class HParams(): | |
| def __init__(self, **kwargs): | |
| for k, v in kwargs.items(): | |
| if type(v) == dict: | |
| v = HParams(**v) | |
| self[k] = v | |
| def keys(self): | |
| return self.__dict__.keys() | |
| def items(self): | |
| return self.__dict__.items() | |
| def values(self): | |
| return self.__dict__.values() | |
| def __len__(self): | |
| return len(self.__dict__) | |
| def __getitem__(self, key): | |
| return getattr(self, key) | |
| def __setitem__(self, key, value): | |
| return setattr(self, key, value) | |
| def __contains__(self, key): | |
| return key in self.__dict__ | |
| def __repr__(self): | |
| return self.__dict__.__repr__() | |