sygil-webui/ldm/data/base.py

32 lines
738 B
Python

from abc import abstractmethod
from torch.utils.data import (
Dataset,
ConcatDataset,
ChainDataset,
IterableDataset,
)
class Txt2ImgIterableBaseDataset(IterableDataset):
"""
Define an interface to make the IterableDatasets for text2img data chainable
"""
def __init__(self, num_records=0, valid_ids=None, size=256):
super().__init__()
self.num_records = num_records
self.valid_ids = valid_ids
self.sample_ids = valid_ids
self.size = size
print(
f'{self.__class__.__name__} dataset contains {self.__len__()} examples.'
)
def __len__(self):
return self.num_records
@abstractmethod
def __iter__(self):
pass