From 2ff405b2f4ab899eff9bece232969fbb0c8f0555 Mon Sep 17 00:00:00 2001
From: jmwang66 <wangjiaming.wjm@alibaba-inc.com>
Date: 星期二, 20 六月 2023 00:26:37 +0800
Subject: [PATCH] Merge pull request #653 from alibaba-damo-academy/dev_wjm_infer

---
 funasr/models/encoder/abs_encoder.py |   21 +++++++++++++++++++++
 1 files changed, 21 insertions(+), 0 deletions(-)

diff --git a/funasr/models/encoder/abs_encoder.py b/funasr/models/encoder/abs_encoder.py
new file mode 100644
index 0000000..034bc1f
--- /dev/null
+++ b/funasr/models/encoder/abs_encoder.py
@@ -0,0 +1,21 @@
+from abc import ABC
+from abc import abstractmethod
+from typing import Optional
+from typing import Tuple
+
+import torch
+
+
+class AbsEncoder(torch.nn.Module, ABC):
+    @abstractmethod
+    def output_size(self) -> int:
+        raise NotImplementedError
+
+    @abstractmethod
+    def forward(
+        self,
+        xs_pad: torch.Tensor,
+        ilens: torch.Tensor,
+        prev_states: torch.Tensor = None,
+    ) -> Tuple[torch.Tensor, torch.Tensor, Optional[torch.Tensor]]:
+        raise NotImplementedError
\ No newline at end of file

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