forked from mrq/DL-Art-School
112 lines
4.0 KiB
Python
112 lines
4.0 KiB
Python
import os
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import torch
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import torch.nn.functional as F
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import torch.utils.data
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from torch import LongTensor
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from tqdm import tqdm
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from models.tacotron2.taco_utils import load_filepaths_and_text
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from models.tacotron2.text import symbols
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from models.tacotron2.text import text_to_sequence
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class GptTtsDataset(torch.utils.data.Dataset):
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MAX_SYMBOLS_PER_PHRASE = 200
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NUMBER_SYMBOLS = len(symbols)
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NUMBER_TEXT_TOKENS = NUMBER_SYMBOLS + MAX_SYMBOLS_PER_PHRASE + 2
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TEXT_START_TOKEN = LongTensor([NUMBER_TEXT_TOKENS-1])
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TEXT_STOP_TOKEN = LongTensor([NUMBER_TEXT_TOKENS-2])
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def __init__(self, opt):
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self.path = os.path.dirname(opt['path'])
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self.audiopaths_and_text = load_filepaths_and_text(opt['path'])
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self.text_cleaners=['english_cleaners']
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self.MEL_DICTIONARY_SIZE = opt['mel_vocab_size']+3
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self.MEL_START_TOKEN = LongTensor([self.MEL_DICTIONARY_SIZE-3])
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self.MEL_STOP_TOKEN = LongTensor([self.MEL_DICTIONARY_SIZE-2])
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def __getitem__(self, index):
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# Fetch text and add start/stop tokens.
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audiopath_and_text = self.audiopaths_and_text[index]
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audiopath, text = audiopath_and_text[0], audiopath_and_text[1]
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text = torch.IntTensor(text_to_sequence(text, self.text_cleaners))
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text = torch.cat([self.TEXT_START_TOKEN, text, self.TEXT_STOP_TOKEN], dim=0)
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# Fetch quantized MELs
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quant_path = audiopath.replace('wavs/', 'quantized_mels/') + '.pth'
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filename = os.path.join(self.path, quant_path)
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qmel = torch.load(filename)
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qmel = torch.cat([self.MEL_START_TOKEN, qmel, self.MEL_STOP_TOKEN])
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return text, qmel, audiopath
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def __len__(self):
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return len(self.audiopaths_and_text)
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class GptTtsCollater():
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MAX_SYMBOLS_PER_PHRASE = 200
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NUMBER_SYMBOLS = len(symbols)
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NUMBER_TEXT_TOKENS = NUMBER_SYMBOLS + MAX_SYMBOLS_PER_PHRASE + 2
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def __init__(self, opt):
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self.MEL_DICTIONARY_SIZE = opt['mel_vocab_size']+3
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self.MEL_PAD_TOKEN = self.MEL_DICTIONARY_SIZE-1
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def __call__(self, batch):
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text_lens = [len(x[0]) for x in batch]
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#max_text_len = max(text_lens)
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max_text_len = self.MAX_SYMBOLS_PER_PHRASE # This forces all outputs to have the full 200 characters. Testing if this makes a difference.
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mel_lens = [len(x[1]) for x in batch]
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max_mel_len = max(mel_lens)
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texts = []
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qmels = []
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# This is the sequential "background" tokens that are used as padding for text tokens, as specified in the DALLE paper.
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text_range_embedding = torch.arange(max_text_len) + self.NUMBER_SYMBOLS
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for b in batch:
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text, qmel, _ = b
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text = F.pad(text, (0, max_text_len-len(text)), value=0)
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text = torch.where(text == 0, text_range_embedding, text)
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texts.append(text)
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qmels.append(F.pad(qmel, (0, max_mel_len-len(qmel)), value=self.MEL_PAD_TOKEN))
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filenames = [j[2] for j in batch]
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padded_qmel_gt = torch.stack(qmels)[:, 1:-1]
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padded_qmel_gt = padded_qmel_gt * (padded_qmel_gt < 512)
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return {
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'padded_text': torch.stack(texts),
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'input_lengths': LongTensor(text_lens),
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'padded_qmel': torch.stack(qmels),
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'padded_qmel_gt': padded_qmel_gt,
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'output_lengths': LongTensor(mel_lens),
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'filenames': filenames
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}
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if __name__ == '__main__':
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params = {
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'mode': 'gpt_tts',
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'path': 'E:\\audio\\LJSpeech-1.1\\ljs_audio_text_train_filelist.txt',
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'phase': 'train',
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'n_workers': 0,
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'batch_size': 16,
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'mel_vocab_size': 512,
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}
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from data import create_dataset, create_dataloader
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ds, c = create_dataset(params, return_collate=True)
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dl = create_dataloader(ds, params, collate_fn=c)
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i = 0
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m = []
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max_text = 0
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max_mel = 0
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for b in tqdm(dl):
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max_mel = max(max_mel, b['padded_qmel'].shape[2])
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max_text = max(max_text, b['padded_text'].shape[1])
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m=torch.stack(m)
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print(m.mean(), m.std())
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