support pcm audio format

hnluo

2023-02-06 ade51b3a12e47b82e297a0107d98c514fbb41318

1
2
3
4
5
6
7
8
9
from abc import ABC
from abc import abstractmethod
from typing import Iterator
 
 
class AbsIterFactory(ABC):
    @abstractmethod
    def build_iter(self, epoch: int, shuffle: bool = None) -> Iterator:
        raise NotImplementedError