Merge pull request #745 from alibaba-damo-academy/dev_lhn

hnluo

2023-07-17 33f1a9c1d946dfe011e446551e978a0768a1e998

 funasr/models/frontend/abs_frontend.py

New file
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from abc import ABC
from abc import abstractmethod
from typing import Tuple

import torch


class AbsFrontend(torch.nn.Module, ABC):
    @abstractmethod
    def output_size(self) -> int:
        raise NotImplementedError

    @abstractmethod
    def forward(
        self, input: torch.Tensor, input_lengths: torch.Tensor
    ) -> Tuple[torch.Tensor, torch.Tensor]:
        raise NotImplementedError