Spaces:
Running
Running
File size: 6,225 Bytes
6a62ffb |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 |
# 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.
import logging
import os
import sys
from typing import Dict, List, Optional, Tuple
import numpy as np
from dataclasses import dataclass, field
from fairseq.data import Dictionary, HubertDataset
from fairseq.dataclass.configs import FairseqDataclass
from fairseq.tasks import register_task
from fairseq.tasks.fairseq_task import FairseqTask
from omegaconf import MISSING
logger = logging.getLogger(__name__)
class LabelEncoder(object):
def __init__(self, dictionary: Dictionary) -> None:
self.dictionary = dictionary
def __call__(self, label: str) -> List[str]:
return self.dictionary.encode_line(
label,
append_eos=False,
add_if_not_exist=False,
)
@dataclass
class HubertPretrainingConfig(FairseqDataclass):
data: str = field(default=MISSING, metadata={"help": "path to data directory"})
fine_tuning: bool = field(
default=False, metadata={"help": "set to true if fine-tuning Hubert"}
)
labels: List[str] = field(
default_factory=lambda: ["ltr"],
metadata={
"help": (
"extension of the label files to load, frame-level labels for"
" pre-training, and sequence-level label for fine-tuning"
)
},
)
label_dir: Optional[str] = field(
default=None,
metadata={
"help": "if set, looks for labels in this directory instead",
},
)
label_rate: float = field(
default=-1.0,
metadata={"help": "label frame rate. -1.0 for sequence label"},
)
sample_rate: int = field(
default=16_000,
metadata={
"help": "target sample rate. audio files will be up/down "
"sampled to this rate"
},
)
normalize: bool = field(
default=False,
metadata={"help": "if set, normalizes input to have 0 mean and unit variance"},
)
enable_padding: bool = field(
default=False,
metadata={"help": "pad shorter samples instead of cropping"},
)
max_keep_size: Optional[int] = field(
default=None,
metadata={"help": "exclude sample longer than this"},
)
max_sample_size: Optional[int] = field(
default=None,
metadata={"help": "max sample size to crop to for batching"},
)
min_sample_size: Optional[int] = field(
default=None,
metadata={"help": "min sample size to crop to for batching"},
)
single_target: Optional[bool] = field(
default=False,
metadata={
"help": "if set, AddTargetDatasets outputs same keys " "as AddTargetDataset"
},
)
random_crop: Optional[bool] = field(
default=True,
metadata={"help": "always crop from the beginning if false"},
)
pad_audio: Optional[bool] = field(
default=False,
metadata={"help": "pad audio to the longest one in the batch if true"},
)
@register_task("hubert_pretraining", dataclass=HubertPretrainingConfig)
class HubertPretrainingTask(FairseqTask):
cfg: HubertPretrainingConfig
def __init__(
self,
cfg: HubertPretrainingConfig,
) -> None:
super().__init__(cfg)
logger.info(f"current directory is {os.getcwd()}")
logger.info(f"HubertPretrainingTask Config {cfg}")
self.cfg = cfg
self.fine_tuning = cfg.fine_tuning
if cfg.fine_tuning:
self.state.add_factory("target_dictionary", self.load_dictionaries)
else:
self.state.add_factory("dictionaries", self.load_dictionaries)
self.blank_symbol = "<s>"
@property
def source_dictionary(self) -> Optional[Dictionary]:
return None
@property
def target_dictionary(self) -> Optional[Dictionary]:
return self.state.target_dictionary
@property
def dictionaries(self) -> List[Dictionary]:
return self.state.dictionaries
@classmethod
def setup_task(
cls, cfg: HubertPretrainingConfig, **kwargs
) -> "HubertPretrainingTask":
return cls(cfg)
def load_dictionaries(self):
label_dir = self.cfg.data if self.cfg.label_dir is None else self.cfg.label_dir
dictionaries = [
Dictionary.load(f"{label_dir}/dict.{label}.txt")
for label in self.cfg.labels
]
return dictionaries[0] if self.cfg.fine_tuning else dictionaries
def get_label_dir(self) -> str:
if self.cfg.label_dir is None:
return self.cfg.data
return self.cfg.label_dir
def load_dataset(self, split: str, **kwargs) -> None:
manifest = f"{self.cfg.data}/{split}.tsv"
dicts = [self.target_dictionary] if self.cfg.fine_tuning else self.dictionaries
pad_list = [dict.pad() for dict in dicts]
eos_list = [dict.eos() for dict in dicts]
procs = [LabelEncoder(dict) for dict in dicts]
paths = [f"{self.get_label_dir()}/{split}.{l}" for l in self.cfg.labels]
# hubert v1: pad_audio=True, random_crop=False;
self.datasets[split] = HubertDataset(
manifest,
sample_rate=self.cfg.sample_rate,
label_paths=paths,
label_rates=self.cfg.label_rate,
pad_list=pad_list,
eos_list=eos_list,
label_processors=procs,
max_keep_sample_size=self.cfg.max_keep_size,
min_keep_sample_size=self.cfg.min_sample_size,
max_sample_size=self.cfg.max_sample_size,
pad_audio=self.cfg.pad_audio,
normalize=self.cfg.normalize,
store_labels=False,
random_crop=self.cfg.random_crop,
single_target=self.cfg.single_target,
)
def max_positions(self) -> Tuple[int, int]:
return (sys.maxsize, sys.maxsize)
def filter_indices_by_size(self, indices: np.array, *args, **kwargs) -> np.array:
return indices
|