[fix] Fix a bug in seaco_paraformer model "inference" function (#1639)

querryton

2024-04-20 01df8f330ccc754223d5e2d688dc0a55d27f2dcc

 funasr/models/transformer/positionwise_feed_forward.py

@@ -34,3 +34,16 @@
        return self.w_2(self.dropout(self.activation(self.w_1(x))))


class PositionwiseFeedForwardDecoderSANMExport(torch.nn.Module):
   def __init__(self, model):
      super().__init__()
      self.w_1 = model.w_1
      self.w_2 = model.w_2
      self.activation = model.activation
      self.norm = model.norm
	
   def forward(self, x):
      x = self.activation(self.w_1(x))
      x = self.w_2(self.norm(x))
      return x