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# Copyright (c) 2017-present, Facebook, Inc.
# All rights reserved.
#
# This source code is licensed under the license found in the LICENSE file in
# the root directory of this source tree. An additional grant of patent rights
# can be found in the PATENTS file in the same directory.abs
from dataclasses import dataclass
from pathlib import Path
from typing import Any, Dict, List, Optional
import numpy as np
import torch
from fairseq.data import Dictionary
from fairseq.data import data_utils as fairseq_data_utils
from fairseq.data.audio.audio_utils import get_features_or_waveform
from fairseq.data.audio.speech_to_text_dataset import (
S2TDataConfig,
SpeechToTextDataset,
SpeechToTextDatasetCreator,
_collate_frames,
)
@dataclass
class TextToSpeechDatasetItem(object):
index: int
source: torch.Tensor
target: Optional[torch.Tensor] = None
speaker_id: Optional[int] = None
duration: Optional[torch.Tensor] = None
pitch: Optional[torch.Tensor] = None
energy: Optional[torch.Tensor] = None
class TextToSpeechDataset(SpeechToTextDataset):
def __init__(
self,
split: str,
is_train_split: bool,
cfg: S2TDataConfig,
audio_paths: List[str],
n_frames: List[int],
src_texts: Optional[List[str]] = None,
tgt_texts: Optional[List[str]] = None,
speakers: Optional[List[str]] = None,
src_langs: Optional[List[str]] = None,
tgt_langs: Optional[List[str]] = None,
ids: Optional[List[str]] = None,
tgt_dict: Optional[Dictionary] = None,
pre_tokenizer=None,
bpe_tokenizer=None,
n_frames_per_step=1,
speaker_to_id=None,
durations: Optional[List[List[int]]] = None,
pitches: Optional[List[str]] = None,
energies: Optional[List[str]] = None,
):
super(TextToSpeechDataset, self).__init__(
split,
is_train_split,
cfg,
audio_paths,
n_frames,
src_texts=src_texts,
tgt_texts=tgt_texts,
speakers=speakers,
src_langs=src_langs,
tgt_langs=tgt_langs,
ids=ids,
tgt_dict=tgt_dict,
pre_tokenizer=pre_tokenizer,
bpe_tokenizer=bpe_tokenizer,
n_frames_per_step=n_frames_per_step,
speaker_to_id=speaker_to_id,
)
self.durations = durations
self.pitches = pitches
self.energies = energies
def __getitem__(self, index: int) -> TextToSpeechDatasetItem:
s2t_item = super().__getitem__(index)
duration, pitch, energy = None, None, None
if self.durations is not None:
duration = torch.tensor(
self.durations[index] + [0], dtype=torch.long # pad 0 for EOS
)
if self.pitches is not None:
pitch = get_features_or_waveform(self.pitches[index])
pitch = torch.from_numpy(
np.concatenate((pitch, [0])) # pad 0 for EOS
).float()
if self.energies is not None:
energy = get_features_or_waveform(self.energies[index])
energy = torch.from_numpy(
np.concatenate((energy, [0])) # pad 0 for EOS
).float()
return TextToSpeechDatasetItem(
index=index,
source=s2t_item.source,
target=s2t_item.target,
speaker_id=s2t_item.speaker_id,
duration=duration,
pitch=pitch,
energy=energy,
)
def collater(self, samples: List[TextToSpeechDatasetItem]) -> Dict[str, Any]:
if len(samples) == 0:
return {}
src_lengths, order = torch.tensor(
[s.target.shape[0] for s in samples], dtype=torch.long
).sort(descending=True)
id_ = torch.tensor([s.index for s in samples], dtype=torch.long).index_select(
0, order
)
feat = _collate_frames(
[s.source for s in samples], self.cfg.use_audio_input
).index_select(0, order)
target_lengths = torch.tensor(
[s.source.shape[0] for s in samples], dtype=torch.long
).index_select(0, order)
src_tokens = fairseq_data_utils.collate_tokens(
[s.target for s in samples],
self.tgt_dict.pad(),
self.tgt_dict.eos(),
left_pad=False,
move_eos_to_beginning=False,
).index_select(0, order)
speaker = None
if self.speaker_to_id is not None:
speaker = (
torch.tensor([s.speaker_id for s in samples], dtype=torch.long)
.index_select(0, order)
.view(-1, 1)
)
bsz, _, d = feat.size()
prev_output_tokens = torch.cat(
(feat.new_zeros((bsz, 1, d)), feat[:, :-1, :]), dim=1
)
durations, pitches, energies = None, None, None
if self.durations is not None:
durations = fairseq_data_utils.collate_tokens(
[s.duration for s in samples], 0
).index_select(0, order)
assert src_tokens.shape[1] == durations.shape[1]
if self.pitches is not None:
pitches = _collate_frames([s.pitch for s in samples], True)
pitches = pitches.index_select(0, order)
assert src_tokens.shape[1] == pitches.shape[1]
if self.energies is not None:
energies = _collate_frames([s.energy for s in samples], True)
energies = energies.index_select(0, order)
assert src_tokens.shape[1] == energies.shape[1]
src_texts = [self.tgt_dict.string(samples[i].target) for i in order]
return {
"id": id_,
"net_input": {
"src_tokens": src_tokens,
"src_lengths": src_lengths,
"prev_output_tokens": prev_output_tokens,
},
"speaker": speaker,
"target": feat,
"durations": durations,
"pitches": pitches,
"energies": energies,
"target_lengths": target_lengths,
"ntokens": sum(target_lengths).item(),
"nsentences": len(samples),
"src_texts": src_texts,
}
class TextToSpeechDatasetCreator(SpeechToTextDatasetCreator):
KEY_DURATION = "duration"
KEY_PITCH = "pitch"
KEY_ENERGY = "energy"
@classmethod
def _from_list(
cls,
split_name: str,
is_train_split,
samples: List[Dict],
cfg: S2TDataConfig,
tgt_dict,
pre_tokenizer,
bpe_tokenizer,
n_frames_per_step,
speaker_to_id,
multitask=None,
) -> TextToSpeechDataset:
audio_root = Path(cfg.audio_root)
ids = [s[cls.KEY_ID] for s in samples]
audio_paths = [(audio_root / s[cls.KEY_AUDIO]).as_posix() for s in samples]
n_frames = [int(s[cls.KEY_N_FRAMES]) for s in samples]
tgt_texts = [s[cls.KEY_TGT_TEXT] for s in samples]
src_texts = [s.get(cls.KEY_SRC_TEXT, cls.DEFAULT_SRC_TEXT) for s in samples]
speakers = [s.get(cls.KEY_SPEAKER, cls.DEFAULT_SPEAKER) for s in samples]
src_langs = [s.get(cls.KEY_SRC_LANG, cls.DEFAULT_LANG) for s in samples]
tgt_langs = [s.get(cls.KEY_TGT_LANG, cls.DEFAULT_LANG) for s in samples]
durations = [s.get(cls.KEY_DURATION, None) for s in samples]
durations = [
None if dd is None else [int(d) for d in dd.split(" ")] for dd in durations
]
durations = None if any(dd is None for dd in durations) else durations
pitches = [s.get(cls.KEY_PITCH, None) for s in samples]
pitches = [
None if pp is None else (audio_root / pp).as_posix() for pp in pitches
]
pitches = None if any(pp is None for pp in pitches) else pitches
energies = [s.get(cls.KEY_ENERGY, None) for s in samples]
energies = [
None if ee is None else (audio_root / ee).as_posix() for ee in energies
]
energies = None if any(ee is None for ee in energies) else energies
return TextToSpeechDataset(
split_name,
is_train_split,
cfg,
audio_paths,
n_frames,
src_texts,
tgt_texts,
speakers,
src_langs,
tgt_langs,
ids,
tgt_dict,
pre_tokenizer,
bpe_tokenizer,
n_frames_per_step,
speaker_to_id,
durations,
pitches,
energies,
)
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