From b454a1054fadbff0ee963944ff42f66b98317582 Mon Sep 17 00:00:00 2001
From: Yabin Li <wucong.lyb@alibaba-inc.com>
Date: 星期二, 08 八月 2023 11:17:43 +0800
Subject: [PATCH] update online runtime, including vad-online, paraformer-online, punc-online,2pass (#815)

---
 funasr/export/models/decoder/sanm_decoder.py |  155 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 155 insertions(+), 0 deletions(-)

diff --git a/funasr/export/models/decoder/sanm_decoder.py b/funasr/export/models/decoder/sanm_decoder.py
index 9084b7f..6966847 100644
--- a/funasr/export/models/decoder/sanm_decoder.py
+++ b/funasr/export/models/decoder/sanm_decoder.py
@@ -157,3 +157,158 @@
             "n_layers": len(self.model.decoders) + len(self.model.decoders2),
             "odim": self.model.decoders[0].size
         }
+
+
+class ParaformerSANMDecoderOnline(nn.Module):
+    def __init__(self, model,
+                 max_seq_len=512,
+                 model_name='decoder',
+                 onnx: bool = True, ):
+        super().__init__()
+        # self.embed = model.embed #Embedding(model.embed, max_seq_len)
+        self.model = model
+        if onnx:
+            self.make_pad_mask = MakePadMask(max_seq_len, flip=False)
+        else:
+            self.make_pad_mask = sequence_mask(max_seq_len, flip=False)
+        
+        for i, d in enumerate(self.model.decoders):
+            if isinstance(d.feed_forward, PositionwiseFeedForwardDecoderSANM):
+                d.feed_forward = PositionwiseFeedForwardDecoderSANM_export(d.feed_forward)
+            if isinstance(d.self_attn, MultiHeadedAttentionSANMDecoder):
+                d.self_attn = MultiHeadedAttentionSANMDecoder_export(d.self_attn)
+            if isinstance(d.src_attn, MultiHeadedAttentionCrossAtt):
+                d.src_attn = MultiHeadedAttentionCrossAtt_export(d.src_attn)
+            self.model.decoders[i] = DecoderLayerSANM_export(d)
+        
+        if self.model.decoders2 is not None:
+            for i, d in enumerate(self.model.decoders2):
+                if isinstance(d.feed_forward, PositionwiseFeedForwardDecoderSANM):
+                    d.feed_forward = PositionwiseFeedForwardDecoderSANM_export(d.feed_forward)
+                if isinstance(d.self_attn, MultiHeadedAttentionSANMDecoder):
+                    d.self_attn = MultiHeadedAttentionSANMDecoder_export(d.self_attn)
+                self.model.decoders2[i] = DecoderLayerSANM_export(d)
+        
+        for i, d in enumerate(self.model.decoders3):
+            if isinstance(d.feed_forward, PositionwiseFeedForwardDecoderSANM):
+                d.feed_forward = PositionwiseFeedForwardDecoderSANM_export(d.feed_forward)
+            self.model.decoders3[i] = DecoderLayerSANM_export(d)
+        
+        self.output_layer = model.output_layer
+        self.after_norm = model.after_norm
+        self.model_name = model_name
+    
+    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,
+        hs_pad: torch.Tensor,
+        hlens: torch.Tensor,
+        ys_in_pad: torch.Tensor,
+        ys_in_lens: torch.Tensor,
+        *args,
+    ):
+        
+        tgt = ys_in_pad
+        tgt_mask = self.make_pad_mask(ys_in_lens)
+        tgt_mask, _ = self.prepare_mask(tgt_mask)
+        # tgt_mask = myutils.sequence_mask(ys_in_lens, device=tgt.device)[:, :, None]
+        
+        memory = hs_pad
+        memory_mask = self.make_pad_mask(hlens)
+        _, memory_mask = self.prepare_mask(memory_mask)
+        # memory_mask = myutils.sequence_mask(hlens, device=memory.device)[:, None, :]
+        
+        x = tgt
+        out_caches = list()
+        for i, decoder in enumerate(self.model.decoders):
+            in_cache = args[i]
+            x, tgt_mask, memory, memory_mask, out_cache = decoder(
+                x, tgt_mask, memory, memory_mask, cache=in_cache
+            )
+            out_caches.append(out_cache)
+        if self.model.decoders2 is not None:
+            for i, decoder in enumerate(self.model.decoders2):
+                in_cache = args[i+len(self.model.decoders)]
+                x, tgt_mask, memory, memory_mask, out_cache = decoder(
+                    x, tgt_mask, memory, memory_mask, cache=in_cache
+                )
+                out_caches.append(out_cache)
+        x, tgt_mask, memory, memory_mask, _ = self.model.decoders3(
+            x, tgt_mask, memory, memory_mask
+        )
+        x = self.after_norm(x)
+        x = self.output_layer(x)
+        
+        return x, out_caches
+    
+    def get_dummy_inputs(self, enc_size):
+        enc = torch.randn(2, 100, enc_size).type(torch.float32)
+        enc_len = torch.tensor([30, 100], dtype=torch.int32)
+        acoustic_embeds = torch.randn(2, 10, enc_size).type(torch.float32)
+        acoustic_embeds_len = torch.tensor([5, 10], dtype=torch.int32)
+        cache_num = len(self.model.decoders)
+        if hasattr(self.model, 'decoders2') and self.model.decoders2 is not None:
+            cache_num += len(self.model.decoders2)
+        cache = [
+            torch.zeros((2, self.model.decoders[0].size, self.model.decoders[0].self_attn.kernel_size-1), dtype=torch.float32)
+            for _ in range(cache_num)
+        ]
+        return (enc, enc_len, acoustic_embeds, acoustic_embeds_len, *cache)
+
+    def get_input_names(self):
+        cache_num = len(self.model.decoders)
+        if hasattr(self.model, 'decoders2') and self.model.decoders2 is not None:
+            cache_num += len(self.model.decoders2)
+        return ['enc', 'enc_len', 'acoustic_embeds', 'acoustic_embeds_len'] \
+               + ['in_cache_%d' % i for i in range(cache_num)]
+
+    def get_output_names(self):
+        cache_num = len(self.model.decoders)
+        if hasattr(self.model, 'decoders2') and self.model.decoders2 is not None:
+            cache_num += len(self.model.decoders2)
+        return ['logits', 'sample_ids'] \
+               + ['out_cache_%d' % i for i in range(cache_num)]
+
+    def get_dynamic_axes(self):
+        ret = {
+            'enc': {
+                0: 'batch_size',
+                1: 'enc_length'
+            },
+            'acoustic_embeds': {
+                0: 'batch_size',
+                1: 'token_length'
+            },
+            'enc_len': {
+                0: 'batch_size',
+            },
+            'acoustic_embeds_len': {
+                0: 'batch_size',
+            },
+        
+        }
+        cache_num = len(self.model.decoders)
+        if hasattr(self.model, 'decoders2') and self.model.decoders2 is not None:
+            cache_num += len(self.model.decoders2)
+        ret.update({
+            'in_cache_%d' % d: {
+                0: 'batch_size',
+            }
+            for d in range(cache_num)
+        })
+        ret.update({
+            'out_cache_%d' % d: {
+                0: 'batch_size',
+            }
+            for d in range(cache_num)
+        })
+        return ret

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