From bc723ea200144bd6fa8a5dff4b9a780feda144fc Mon Sep 17 00:00:00 2001
From: 游雁 <zhifu.gzf@alibaba-inc.com>
Date: 星期四, 29 六月 2023 18:55:01 +0800
Subject: [PATCH] dcos

---
 funasr/models/decoder/sanm_decoder.py |   14 ++++++++------
 1 files changed, 8 insertions(+), 6 deletions(-)

diff --git a/funasr/models/decoder/sanm_decoder.py b/funasr/models/decoder/sanm_decoder.py
index 463918a..d83f89f 100644
--- a/funasr/models/decoder/sanm_decoder.py
+++ b/funasr/models/decoder/sanm_decoder.py
@@ -7,7 +7,6 @@
 
 from funasr.modules.streaming_utils import utils as myutils
 from funasr.models.decoder.transformer_decoder import BaseTransformerDecoder
-from typeguard import check_argument_types
 
 from funasr.modules.attention import MultiHeadedAttentionSANMDecoder, MultiHeadedAttentionCrossAtt
 from funasr.modules.embedding import PositionalEncoding
@@ -151,7 +150,7 @@
 
 class FsmnDecoderSCAMAOpt(BaseTransformerDecoder):
     """
-    author: Speech Lab, Alibaba Group, China
+    Author: Speech Lab of DAMO Academy, Alibaba Group
     SCAMA: Streaming chunk-aware multihead attention for online end-to-end speech recognition
     https://arxiv.org/abs/2006.01713
 
@@ -181,7 +180,6 @@
             tf2torch_tensor_name_prefix_tf: str = "seq2seq/decoder",
             embed_tensor_name_prefix_tf: str = None,
     ):
-        assert check_argument_types()
         super().__init__(
             vocab_size=vocab_size,
             encoder_output_size=encoder_output_size,
@@ -812,7 +810,7 @@
 
 class ParaformerSANMDecoder(BaseTransformerDecoder):
     """
-    author: Speech Lab, Alibaba Group, China
+    Author: Speech Lab of DAMO Academy, Alibaba Group
     Paraformer: Fast and Accurate Parallel Transformer for Non-autoregressive End-to-End Speech Recognition
     https://arxiv.org/abs/2006.01713
     """
@@ -838,7 +836,6 @@
         tf2torch_tensor_name_prefix_torch: str = "decoder",
         tf2torch_tensor_name_prefix_tf: str = "seq2seq/decoder",
     ):
-        assert check_argument_types()
         super().__init__(
             vocab_size=vocab_size,
             encoder_output_size=encoder_output_size,
@@ -935,6 +932,7 @@
         hlens: torch.Tensor,
         ys_in_pad: torch.Tensor,
         ys_in_lens: torch.Tensor,
+        chunk_mask: torch.Tensor = None,
     ) -> Tuple[torch.Tensor, torch.Tensor]:
         """Forward decoder.
 
@@ -955,9 +953,13 @@
         """
         tgt = ys_in_pad
         tgt_mask = myutils.sequence_mask(ys_in_lens, device=tgt.device)[:, :, None]
-
+        
         memory = hs_pad
         memory_mask = myutils.sequence_mask(hlens, device=memory.device)[:, None, :]
+        if chunk_mask is not None:
+            memory_mask = memory_mask * chunk_mask
+            if tgt_mask.size(1) != memory_mask.size(1):
+                memory_mask = torch.cat((memory_mask, memory_mask[:, -2:-1, :]), dim=1)
 
         x = tgt
         x, tgt_mask, memory, memory_mask, _ = self.decoders(

--
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