From a030ff0f85fd6b1cc2a1d443d2fcfb11ccb1aa8f Mon Sep 17 00:00:00 2001
From: 游雁 <zhifu.gzf@alibaba-inc.com>
Date: 星期三, 29 三月 2023 21:15:55 +0800
Subject: [PATCH] export

---
 funasr/export/models/encoder/sanm_encoder.py |   99 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 99 insertions(+), 0 deletions(-)

diff --git a/funasr/export/models/encoder/sanm_encoder.py b/funasr/export/models/encoder/sanm_encoder.py
index 8a50538..3b7b414 100644
--- a/funasr/export/models/encoder/sanm_encoder.py
+++ b/funasr/export/models/encoder/sanm_encoder.py
@@ -107,3 +107,102 @@
             }
 
         }
+
+
+class SANMVadEncoder(nn.Module):
+    def __init__(
+        self,
+        model,
+        max_seq_len=512,
+        feats_dim=560,
+        model_name='encoder',
+        onnx: bool = True,
+    ):
+        super().__init__()
+        self.embed = model.embed
+        self.model = model
+        self.feats_dim = feats_dim
+        self._output_size = model._output_size
+        
+        if onnx:
+            self.make_pad_mask = MakePadMask(max_seq_len, flip=False)
+        else:
+            self.make_pad_mask = sequence_mask(max_seq_len, flip=False)
+        
+        if hasattr(model, 'encoders0'):
+            for i, d in enumerate(self.model.encoders0):
+                if isinstance(d.self_attn, MultiHeadedAttentionSANM):
+                    d.self_attn = MultiHeadedAttentionSANM_export(d.self_attn)
+                if isinstance(d.feed_forward, PositionwiseFeedForward):
+                    d.feed_forward = PositionwiseFeedForward_export(d.feed_forward)
+                self.model.encoders0[i] = EncoderLayerSANM_export(d)
+        
+        for i, d in enumerate(self.model.encoders):
+            if isinstance(d.self_attn, MultiHeadedAttentionSANM):
+                d.self_attn = MultiHeadedAttentionSANM_export(d.self_attn)
+            if isinstance(d.feed_forward, PositionwiseFeedForward):
+                d.feed_forward = PositionwiseFeedForward_export(d.feed_forward)
+            self.model.encoders[i] = EncoderLayerSANM_export(d)
+        
+        self.model_name = model_name
+        self.num_heads = model.encoders[0].self_attn.h
+        self.hidden_size = model.encoders[0].self_attn.linear_out.out_features
+    
+    def prepare_mask(self, mask):
+        mask_3d_btd = mask[:, :, None]
+        if len(mask.shape) == 2:
+            mask_4d_bhlt = 1 - mask[:, None, None, :]
+        elif len(mask.shape) == 3:
+            mask_4d_bhlt = 1 - mask[:, None, :]
+        mask_4d_bhlt = mask_4d_bhlt * -10000.0
+        
+        return mask_3d_btd, mask_4d_bhlt
+    
+    def forward(self,
+                speech: torch.Tensor,
+                speech_lengths: torch.Tensor,
+                ):
+        speech = speech * self._output_size ** 0.5
+        mask = self.make_pad_mask(speech_lengths)
+        mask = self.prepare_mask(mask)
+        if self.embed is None:
+            xs_pad = speech
+        else:
+            xs_pad = self.embed(speech)
+        
+        encoder_outs = self.model.encoders0(xs_pad, mask)
+        xs_pad, masks = encoder_outs[0], encoder_outs[1]
+        
+        encoder_outs = self.model.encoders(xs_pad, mask)
+        xs_pad, masks = encoder_outs[0], encoder_outs[1]
+        
+        xs_pad = self.model.after_norm(xs_pad)
+        
+        return xs_pad, speech_lengths
+    
+    def get_output_size(self):
+        return self.model.encoders[0].size
+    
+    def get_dummy_inputs(self):
+        feats = torch.randn(1, 100, self.feats_dim)
+        return (feats)
+    
+    def get_input_names(self):
+        return ['feats']
+    
+    def get_output_names(self):
+        return ['encoder_out', 'encoder_out_lens', 'predictor_weight']
+    
+    def get_dynamic_axes(self):
+        return {
+            'feats': {
+                1: 'feats_length'
+            },
+            'encoder_out': {
+                1: 'enc_out_length'
+            },
+            'predictor_weight': {
+                1: 'pre_out_length'
+            }
+            
+        }

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