fix the bugs

egs/iwslt2022/mt/run.sh

@@ -44,10 +44,10 @@ lcrm=1
 tokenizer=0
 
 use_specific_dict=1
-specific_prefix=asr5k_st10k
-specific_dir=${root_dir}/data/${dataset}/st_lcrm_asr
-src_vocab_prefix=spm_unigram5000_asr
-tgt_vocab_prefix=spm_unigram10000_st
+specific_prefix=unified
+specific_dir=${root_dir}/data/${dataset}/vocab
+src_vocab_prefix=spm_en
+tgt_vocab_prefix=spm_zh
 
 org_data_dir=${root_dir}/data/${dataset}
 data_dir=${root_dir}/data/${dataset}/mt

egs/iwslt2022/st/conf/dual_big_pds_grow.yaml

+arch: s2t_dual
+
+asr-encoder: pds
+mt-encoder-layers: 30
+
+share-decoder-input-output-embed: True
+optimizer: adam
+clip-norm: 10.0
+lr-scheduler: inverse_sqrt
+warmup-init-lr: 1e-7
+warmup-updates: 1000
+lr: 5e-4
+#lr: 1e-5
+adam_betas: (0.9,0.98)
+
+criterion: join_speech_and_text_loss
+label_smoothing: 0.1
+
+encoder-normalize-before: True
+decoder-normalize-before: True
+subsampling-type: conv1d
+subsmapling-layers: 2
+subsampling-filter: 2048
+subsampling-kernel: 5
+subsampling-stride: 2
+subsampling-norm: none
+subsampling-activation: glu
+
+dropout: 0.15
+activation-fn: relu
+encoder-ffn-embed-dim: 2048
+encoder-layers: 18
+#text-encoder-layers: 30
+decoder-layers: 6
+encoder-attention-heads: 8
+
+decoder-embed-dim: 512
+decoder-ffn-embed-dim: 2048
+decoder-attention-heads: 8
+
+#acoustic-encoder: pds
+#adapter: league
+
+encoder-embed-dim: 512
+#ctc-layer: 12
+pds-stages: 4
+pds-layers: 6_3_3_6
+pds-ratios: 2_2_1_2
+pds-fusion: True
+pds-fusion-method: all_conv
+pds-embed-dims: 256_384_384_512
+pds-ds-method: conv
+pds-embed-norm: True
+pds-position-embed: 1_1_1_1
+pds-kernel-sizes: 5_5_5_5
+pds-ffn-ratios: 8_4_4_4
+pds-attn-heads: 4_6_6_8
+
+#load-pretrained-encoder-from: /home/xuchen/st/checkpoints/iwslt2022/st/0308_lcrm_unified_sate_big_pds_grow_conformer_ctc_pretrain_con/checkpoint_best.pt
+#load-pretrained-decoder-from: /home/xuchen/st/checkpoints/iwslt2022/st/0308_lcrm_unified_sate_big_pds_grow_conformer_ctc_pretrain_con/checkpoint_best.pt
+
+load-pretrained-asr-encoder-from: /home/xuchen/st/checkpoints/iwslt2022/asr/0308_lcrm_unified_pds_base_8_grow_conformer_ctc_baseline_clamp/avg_10_checkpoint.pt
+load-pretrained-mt-encoder-from: /home/xuchen/st/checkpoints/wmt20/mt/0304_unified_lcrm_tok_deep_baseline/avg_5_checkpoint.pt
+load-pretrained-decoder-from: /home/xuchen/st/checkpoints/wmt20/mt/0304_unified_lcrm_tok_deep_baseline/avg_5_checkpoint.pt

egs/iwslt2022/st/conf/sate_big_pds_grow.yaml

+arch: s2t_sate
+share-decoder-input-output-embed: True
+optimizer: adam
+clip-norm: 10.0
+lr-scheduler: inverse_sqrt
+warmup-init-lr: 1e-7
+warmup-updates: 1000
+lr: 5e-4
+#lr: 1e-5
+adam_betas: (0.9,0.98)
+
+criterion: label_smoothed_cross_entropy_with_ctc
+label_smoothing: 0.1
+
+encoder-normalize-before: True
+decoder-normalize-before: True
+subsampling-type: conv1d
+subsmapling-layers: 2
+subsampling-filter: 2048
+subsampling-kernel: 5
+subsampling-stride: 2
+subsampling-norm: none
+subsampling-activation: glu
+
+dropout: 0.15
+activation-fn: relu
+encoder-ffn-embed-dim: 2048
+encoder-layers: 18
+text-encoder-layers: 30
+decoder-layers: 6
+encoder-attention-heads: 8
+
+decoder-embed-dim: 512
+decoder-ffn-embed-dim: 2048
+decoder-attention-heads: 8
+
+acoustic-encoder: pds
+adapter: league
+
+encoder-embed-dim: 512
+#ctc-layer: 12
+pds-stages: 4
+pds-layers: 6_3_3_6
+pds-ratios: 2_2_1_2
+pds-fusion: True
+pds-fusion-method: all_conv
+pds-embed-dims: 256_384_384_512
+pds-ds-method: conv
+pds-embed-norm: True
+pds-position-embed: 1_1_1_1
+pds-kernel-sizes: 5_5_5_5
+pds-ffn-ratios: 8_4_4_4
+pds-attn-heads: 4_6_6_8
+
+#load-pretrained-encoder-from: /home/xuchen/st/checkpoints/iwslt2022/st/0308_lcrm_unified_sate_big_pds_grow_conformer_ctc_pretrain_con/checkpoint_best.pt
+#load-pretrained-decoder-from: /home/xuchen/st/checkpoints/iwslt2022/st/0308_lcrm_unified_sate_big_pds_grow_conformer_ctc_pretrain_con/checkpoint_best.pt
+
+load-pretrained-acoustic-encoder-from: /home/xuchen/st/checkpoints/iwslt2022/asr/0308_lcrm_unified_pds_base_8_grow_conformer_ctc_baseline_clamp/avg_10_checkpoint.pt
+load-pretrained-text-encoder-from: /home/xuchen/st/checkpoints/wmt20/mt/0304_unified_lcrm_tok_deep_baseline/avg_5_checkpoint.pt
+load-pretrained-decoder-from: /home/xuchen/st/checkpoints/wmt20/mt/0304_unified_lcrm_tok_deep_baseline/avg_5_checkpoint.pt

egs/iwslt2022/st/run.sh

@@ -45,10 +45,10 @@ tokenizer=0
 use_raw_audio=0
 
 use_specific_dict=1
-specific_prefix=asr
-specific_dir=${root_dir}/data/${dataset}/asr
-asr_vocab_prefix=spm_unigram5000_asr
-st_vocab_prefix=
+specific_prefix=unified
+specific_dir=${root_dir}/data/${dataset}/vocab
+asr_vocab_prefix=spm_en
+st_vocab_prefix=spm_zh
 
 org_data_dir=${root_dir}/data/${dataset}
 data_dir=${root_dir}/data/${dataset}/st

egs/libri_trans/asr/conf/debug.yaml

 arch: s2t_dual
 
-#pds-ctc: 0_1_1_0
-#intermedia-adapter: league
-#intermedia-ctc-weight: 0.1
-
-#encoder-attention-type: reduced
-#pds-attn-ds-ratios: 4_2_2_1
-#attention-reduced-method: pool
-#attention-reduced-q: True
-
-#inter-mixup: True
-#inter-mixup-layer: 0
-#inter-mixup-beta: 0.5
-
 asr-encoder: sate
-mt-encoder-layers: 3
-mt-encoder-dim: 256
+mt-encoder-layers: 6
+mt-encoder: transformer
+encoder-drop-net: True
+encoder-drop-net-prob: 0.8
 
 encoder-embed-dim: 256
 pds-stages: 4
-#ctc-layer: 15
-encoder-layers: 6
-pds-layers: 2_1_1_2
+#ctc-layer: 12
+pds-layers: 3_3_3_3
 pds-ratios: 2_2_1_2
 pds-fusion: True
 pds-fusion-method: all_conv
-pds-embed-dims: 192_256_256_384
+pds-embed-dims: 256_256_256_256
 pds-ds-method: conv
 pds-embed-norm: True
 pds-position-embed: 1_1_1_1
 pds-kernel-sizes: 5_5_5_5
-pds-ffn-ratios: 8_8_8_4
-pds-attn-heads: 4_4_4_6
+pds-ffn-ratios: 8_8_8_8
+pds-attn-heads: 4_4_4_4
 
 share-decoder-input-output-embed: True
 optimizer: adam
@@ -42,17 +30,22 @@ warmup-updates: 10000
 lr: 2e-3
 adam_betas: (0.9,0.98)
 
-ctc-weight: 0.3
 criterion: join_speech_and_text_loss
+ctc-weight: 0.3
 label_smoothing: 0.1
 
 dropout: 0.1
 activation-fn: relu
-
+encoder-ffn-embed-dim: 2048
+encoder-layers: 12
 decoder-layers: 6
+encoder-attention-heads: 4
+
 decoder-embed-dim: 256
 decoder-ffn-embed-dim: 2048
 decoder-attention-heads: 4
 
 #load-pretrained-encoder-from:
-#load-pretrained-decoder-from:
+#load-pretrained-asr-encoder-from: /home/xuchen/st/checkpoints/mustc/asr/0225_st_purectc_pds_base_8_baseline_topctc/avg_10_checkpoint.pt
+#load-pretrained-mt-encoder-from: /home/xuchen/st/checkpoints/mustc/mt/0223_st_small_baseline/avg_10_checkpoint.pt
+#load-pretrained-decoder-from: /home/xuchen/st/checkpoints/mustc/mt/0223_st_small_baseline/avg_10_checkpoint.pt
\ No newline at end of file

egs/mustc/mt/conf/debug.yaml

@@ -9,10 +9,12 @@ lr: 1e-3
 adam_betas: (0.9,0.997)
 
 criterion: label_smoothed_cross_entropy_with_ctc
-ctc-weight: 0.3
-intermedia-ctc-layers: 2,4
 label_smoothing: 0.1
 
+ctc-weight: 0.2
+intermedia-ctc-weight: 0.1
+intermedia-ctc-layers: 2,4
+
 dropout: 0.1
 attention-dropout: 0.1
 activation-dropout: 0.1

egs/mustc/mt/conf/inter.yaml

-ctc-weight: 0.2
-intermedia-ctc-weight: 0.1
+#ctc-weight: 0.2
+intermedia-ctc-weight: 0.3
 intermedia-ctc-layers: 2,4
 
 #target-ctc-weight: 0.3

egs/mustc/st/conf/dual.yaml

+arch: s2t_dual
+
+asr-encoder: pds
+mt-encoder-layers: 6
+mt-encoder: transformer
+encoder-drop-net: True
+encoder-drop-net-prob: 0.5
+
+encoder-embed-dim: 256
+pds-stages: 4
+#ctc-layer: 12
+pds-layers: 3_3_3_3
+pds-ratios: 2_2_1_2
+pds-fusion: True
+pds-fusion-method: all_conv
+pds-embed-dims: 256_256_256_256
+pds-ds-method: conv
+pds-embed-norm: True
+pds-position-embed: 1_1_1_1
+pds-kernel-sizes: 5_5_5_5
+pds-ffn-ratios: 8_8_8_8
+pds-attn-heads: 4_4_4_4
+
+share-decoder-input-output-embed: True
+optimizer: adam
+clip-norm: 10.0
+lr-scheduler: inverse_sqrt
+warmup-init-lr: 1e-7
+warmup-updates: 10000
+lr: 2e-3
+adam_betas: (0.9,0.98)
+
+criterion: join_speech_and_text_loss
+label_smoothing: 0.1
+
+dropout: 0.1
+activation-fn: relu
+encoder-ffn-embed-dim: 2048
+encoder-layers: 12
+decoder-layers: 6
+encoder-attention-heads: 4
+
+decoder-embed-dim: 256
+decoder-ffn-embed-dim: 2048
+decoder-attention-heads: 4
+
+#load-pretrained-encoder-from:
+#load-pretrained-asr-encoder-from: /home/xuchen/st/checkpoints/mustc/asr/0225_st_purectc_pds_base_8_baseline_topctc/avg_10_checkpoint.pt
+#load-pretrained-mt-encoder-from: /home/xuchen/st/checkpoints/mustc/mt/0223_st_small_baseline/avg_10_checkpoint.pt
+#load-pretrained-decoder-from: /home/xuchen/st/checkpoints/mustc/mt/0223_st_small_baseline/avg_10_checkpoint.pt
\ No newline at end of file

egs/wmt16/mt/conf/inter.yaml

+#ctc-weight: 0.2
+intermedia-ctc-weight: 0.3
+intermedia-ctc-layers: 2,4
+
+#target-ctc-weight: 0.3
+#target-ctc-layer: 6
+#target-intermedia-ctc-weight: 0.1
+#target-intermedia-ctc-layers: 2,4
+
+intermedia-adapter: league
+#intermedia-drop-prob: 0.2
+#intermedia-temperature: 5
+
+post-process: sentencepiece
\ No newline at end of file

fairseq/criterions/ctc.py

@@ -170,9 +170,10 @@ class CtcCriterion(FairseqCriterion):
             tokens = sample["transcript"]["tokens"]
         else:
             tokens = sample["target"]
-        # if "ctc_padding_mask" in net_output:
-        #     non_padding_mask = ~net_output["ctc_padding_mask"][0]
-        # else:
+        if "ctc_padding_mask" in net_output:
+            non_padding_mask = ~net_output["ctc_padding_mask"][0]
+        else:
+            non_padding_mask = ~net_output["encoder_padding_mask"][0]
         # non_padding_mask = ~net_output["encoder_padding_mask"][0]
 
         mixup = False
@@ -182,7 +183,6 @@ class CtcCriterion(FairseqCriterion):
             mixup_idx1 = net_output["mixup"]["index1"]
             mixup_idx2 = net_output["mixup"]["index2"]
 
-        non_padding_mask = ~net_output["encoder_padding_mask"][0]
         input_lengths = non_padding_mask.long().sum(-1)
 
         pad_mask = (tokens != self.pad_idx) & (
@@ -349,6 +349,7 @@ class CtcCriterion(FairseqCriterion):
             self.ctc_weight * ctc_loss + \
             self.intermedia_ctc_weight * intermedia_ctc_loss + \
             self.target_ctc_weight * target_ctc_loss + \
+            self.target_intermedia_ctc_weight * target_intermedia_ctc_loss + \
             self.ctc_self_distill_weight * ctc_self_distill_loss + \
             self.ctc_entropy * ctc_entropy
 
@@ -452,6 +453,9 @@ class CtcCriterion(FairseqCriterion):
         target_ctc_loss_sum = utils.item(
             sum(log.get("target_ctc_loss", 0) for log in logging_outputs)
         )
+        target_intermedia_ctc_loss_sum = utils.item(
+            sum(log.get("target_intermedia_ctc_loss", 0) for log in logging_outputs)
+        )
         ctc_self_distill_loss_sum = utils.item(
             sum(log.get("ctc_self_distill_loss", 0) for log in logging_outputs)
         )
@@ -513,6 +517,13 @@ class CtcCriterion(FairseqCriterion):
                 sample_size,
                 round=3,
             )
+        if target_intermedia_ctc_loss_sum > 0:
+            metrics.log_scalar(
+                "target_intermedia_ctc_loss",
+                target_intermedia_ctc_loss_sum / sample_size / math.log(2),
+                sample_size,
+                round=3,
+            )
 
         if ctc_self_distill_loss_sum > 0:
             metrics.log_scalar(

fairseq/models/speech_to_text/modules/__init__.py

-

fairseq/models/speech_to_text/pdss2t_transformer.py

@@ -835,13 +835,13 @@ class PDSS2TTransformerEncoder(FairseqEncoder):
                         if args.intermedia_adapter == "shrink":
                             strategy = getattr(args, "ctc_compress_strategy", "avg")
                         adapter = Adapter(embed_dim, args.intermedia_adapter,
-                                          task.source_dictionary, strategy=strategy)
+                                          len(task.source_dictionary), strategy=strategy)
                         inter_adapter = adapter
                     else:
                         adapter = inter_adapter
                 else:
                     adapter = Adapter(embed_dim, "none",
-                                      task.source_dictionary)
+                                      len(task.source_dictionary))
             else:
                 ctc = None
                 adapter = None
@@ -860,10 +860,11 @@ class PDSS2TTransformerEncoder(FairseqEncoder):
             self.fusion_weight = nn.Parameter(torch.Tensor(fusion_stages_num).fill_(1.0))
             self.fusion_weight.data = self.fusion_weight.data / self.fusion_weight.data.sum(0, keepdim=True)
 
-        self.use_ctc = "sate" in args.arch or \
-                       (getattr(args, "criterion", "") == "ctc") or \
-                       (("ctc" in getattr(args, "criterion", "")) and
-                        (getattr(args, "ctc_weight", False) > 0))
+        # self.use_ctc = "sate" in args.arch or \
+        #                (getattr(args, "criterion", "") == "ctc") or \
+        #                (("ctc" in getattr(args, "criterion", "")) and
+        #                 (getattr(args, "ctc_weight", False) > 0))
+        self.use_ctc = "sate" in args.arch or (getattr(args, "ctc_weight", 0) > 0)
         if self.use_ctc:
             # self.ctc_layer = (args.ctc_layer + self.layers) % self.layers
             # self.ctc_layer = self.layers if self.ctc_layer == 0 else self.ctc_layer

fairseq/models/speech_to_text/s2t_dual.py

@@ -143,7 +143,7 @@ class S2TDualModel(FairseqEncoderDecoderModel):
         parser.add_argument(
             "--mt-encoder-layers",
             default=6,
-            type=str,
+            type=int,
             help="the layers of the MT encoder",
         )
         parser.add_argument(
@@ -175,6 +175,18 @@ class S2TDualModel(FairseqEncoderDecoderModel):
             help="mix the two input with any probability",
         )
 
+        parser.add_argument(
+            "--load-pretrained-asr-encoder-from",
+            type=str,
+            metavar="STR",
+            help="model to take asr encoder weights from (for initialization)",
+        )
+        parser.add_argument(
+            "--load-pretrained-mt-encoder-from",
+            type=str,
+            metavar="STR",
+            help="model to take mt encoder weights from (for initialization)",
+        )
         pass
 
     @classmethod
@@ -190,7 +202,7 @@ class S2TDualModel(FairseqEncoderDecoderModel):
                 f"{args.load_pretrained_encoder_from}"
             )
         if getattr(args, "load_pretrained_asr_encoder_from", None):
-            encoder = checkpoint_utils.load_pretrained_component_from_model(
+            encoder.asr_encoder = checkpoint_utils.load_pretrained_component_from_model(
                 component=encoder.asr_encoder, checkpoint=args.load_pretrained_asr_encoder_from, strict=False
             )
             logger.info(
@@ -198,7 +210,7 @@ class S2TDualModel(FairseqEncoderDecoderModel):
                 f"{args.load_pretrained_asr_encoder_from}"
             )
         if getattr(args, "load_pretrained_mt_encoder_from", None):
-            encoder = checkpoint_utils.load_pretrained_component_from_model(
+            encoder.mt_encoder = checkpoint_utils.load_pretrained_component_from_model(
                 component=encoder.mt_encoder, checkpoint=args.load_pretrained_mt_encoder_from, strict=False
             )
             logger.info(
@@ -314,23 +326,96 @@ class S2TDualEncoder(FairseqEncoder):
         else:
             logger.error("Unsupported ASR architecture: %s." % asr_encoder_type)
 
+        attn_type = args.encoder_attention_type
+        setattr(args, "encoder_layers", args.mt_encoder_layers)
+        setattr(args, "encoder_attention_type", "selfattn")
         self.mt_encoder = TransformerS2Encoder(args, task.source_dictionary, embed_tokens)
+        setattr(args, "encoder_attention_type", attn_type)
 
     def forward(self, speech_src_tokens, speech_src_lengths, text_src_tokens, text_src_lengths, **kwargs):
         asr_encoder_out = self.asr_encoder(speech_src_tokens, speech_src_lengths)
-        ctc_logit = asr_encoder_out["ctc_logit"]
         encoder_representation = asr_encoder_out["encoder_out"][0]
         encoder_padding_mask = asr_encoder_out["encoder_padding_mask"][0]
 
         encoder_out = self.mt_encoder(text_src_tokens, text_src_lengths,
                                       encoder_representation, encoder_padding_mask)
         
-        encoder_out["ctc_logit"] = ctc_logit
+        encoder_out["ctc_logit"] = asr_encoder_out["ctc_logit"]
+        encoder_out["ctc_padding_mask"] = asr_encoder_out["encoder_padding_mask"]
+        return encoder_out
+
+    def forward_torchscript(self, net_input: Dict[str, Tensor]):
+        speech_src_tokens = net_input["src_tokens"]
+        speech_src_lengths = net_input["src_lengths"]
+        text_src_tokens = net_input["text_src_tokens"]
+        text_src_lengths = net_input["text_src_lengths"]
+
+        encoder_out = self.forward(speech_src_tokens, speech_src_lengths, text_src_tokens, text_src_lengths)
         return encoder_out
 
     def reorder_encoder_out(self, encoder_out, new_order):
-        self.mt_encoder.reorder_encoder_out(encoder_out, new_order)
-        return
+        """
+         Reorder encoder output according to *new_order*.
+
+         Args:
+             encoder_out: output from the ``forward()`` method
+             new_order (LongTensor): desired order
+
+         Returns:
+             *encoder_out* rearranged according to *new_order*
+         """
+        if len(encoder_out["encoder_out"]) == 0:
+            new_encoder_out = []
+        else:
+            new_encoder_out = [encoder_out["encoder_out"][0].index_select(1, new_order)]
+        if len(encoder_out["encoder_padding_mask"]) == 0:
+            new_encoder_padding_mask = []
+        else:
+            new_encoder_padding_mask = [
+                encoder_out["encoder_padding_mask"][0].index_select(0, new_order)
+            ]
+        if len(encoder_out["encoder_out_s2"]) == 0:
+            new_encoder_out_s2 = []
+        else:
+            new_encoder_out_s2 = [encoder_out["encoder_out_s2"][0].index_select(1, new_order)]
+        if len(encoder_out["encoder_padding_mask_s2"]) == 0:
+            new_encoder_padding_mask_s2 = []
+        else:
+            new_encoder_padding_mask_s2 = [
+                encoder_out["encoder_padding_mask_s2"][0].index_select(0, new_order)
+            ]
+        if len(encoder_out["encoder_embedding"]) == 0:
+            new_encoder_embedding = []
+        else:
+            new_encoder_embedding = [
+                encoder_out["encoder_embedding"][0].index_select(0, new_order)
+            ]
+
+        if len(encoder_out["src_tokens"]) == 0:
+            src_tokens = []
+        else:
+            src_tokens = [(encoder_out["src_tokens"][0]).index_select(0, new_order)]
+
+        if len(encoder_out["src_lengths"]) == 0:
+            src_lengths = []
+        else:
+            src_lengths = [(encoder_out["src_lengths"][0]).index_select(0, new_order)]
+
+        encoder_states = encoder_out["encoder_states"]
+        if len(encoder_states) > 0:
+            for idx, state in enumerate(encoder_states):
+                encoder_states[idx] = state.index_select(1, new_order)
+
+        return {
+            "encoder_out": new_encoder_out,  # T x B x C
+            "encoder_padding_mask": new_encoder_padding_mask,  # B x T
+            "encoder_out_s2": new_encoder_out_s2,   # T x B x C
+            "encoder_padding_mask_s2": new_encoder_padding_mask_s2,  # B x T
+            "encoder_embedding": new_encoder_embedding,  # B x T x C
+            "encoder_states": encoder_states,  # List[T x B x C]
+            "src_tokens": src_tokens,  # B x T
+            "src_lengths": src_lengths,  # B x 1
+        }
 
 
 @register_model_architecture(model_name="s2t_dual", arch_name="s2t_dual")

fairseq/models/speech_to_text/s2t_sate.py

@@ -222,7 +222,7 @@ class TextEncoder(FairseqEncoder):
             elif args.intermedia_adapter == "league":
                 strategy = getattr(args, "intermedia_distribution_cutoff", None)
             self.adapter = Adapter(embed_dim, args.intermedia_adapter,
-                                   dictionary, embed_tokens=embed_tokens,
+                                   len(dictionary), embed_tokens=embed_tokens,
                                    strategy=strategy)
             self.intermedia_drop_prob = getattr(args, "intermedia_drop_prob", 0)
             self.intermedia_temperature = getattr(args, "intermedia_temperature", 1)
@@ -301,7 +301,7 @@ class S2TSATEEncoder(FairseqEncoder):
 
         self.adapter = Adapter(args.encoder_embed_dim,
                                args.adapter,
-                               task.source_dictionary,
+                               len(task.source_dictionary),
                                decoder_embed_tokens if task.source_dictionary == task.target_dictionary else None,
                                strategy=strategy)
 
@@ -352,13 +352,14 @@ class S2TSATEEncoder(FairseqEncoder):
 
             self.history.push(x)
 
-        x, target_ctc_logits = self.text_encoder(x, encoder_padding_mask, self.history)
+        x, target_ctc_logit, target_intermedia_ctc_logits = self.text_encoder(x, encoder_padding_mask, self.history)
 
         return {
             "encoder_out": [x],  # T x B x C
             "ctc_logit": [ctc_logit],    # T x B x C
             "intermedia_ctc_logits": acoustic_encoder_out.get("intermedia_ctc_logits", []),  # B x T x C
-            "target_ctc_logits": target_ctc_logits,  # B x T x C
+            "target_ctc_logit": target_ctc_logit,  # B x T x C
+            "target_intermedia_ctc_logits": target_intermedia_ctc_logits,  # B x T x C
             "ctc_padding_mask": [ctc_padding_mask], # B x T
             "encoder_padding_mask": [encoder_padding_mask],  # B x T
             "encoder_embedding": [],  # B x T x C

fairseq/models/speech_to_text/s2t_transformer.py

@@ -597,7 +597,7 @@ class S2TTransformerEncoder(FairseqEncoder):
             elif args.intermedia_adapter == "league":
                 strategy = getattr(args, "intermedia_distribution_cutoff", None)
             self.adapter = Adapter(dim, args.intermedia_adapter,
-                                   task.source_dictionary, strategy=strategy)
+                                   len(task.source_dictionary), strategy=strategy)
             self.intermedia_drop_prob = getattr(args, "intermedia_drop_prob", 0)
             self.intermedia_temperature = getattr(args, "intermedia_temperature", 1)
 

fairseq/models/transformer.py

@@ -295,42 +295,6 @@ class TransformerModel(FairseqEncoderDecoderModel):
             action='store_true',
             help="use squeeze and excitation method",
         )
-        # CTC
-        parser.add_argument(
-            "--ctc-layer",
-            type=int,
-            help="ctc layers for target sentence",
-        )
-        parser.add_argument(
-            "--intermedia-ctc-layers",
-            default=None,
-            type=str,
-            help="the position of the ctc loss, separated by comma ",
-        )
-        parser.add_argument(
-            "--intermedia-adapter",
-            default="none",
-            type=str,
-            help="type of intermedia adapter",
-        )
-        parser.add_argument(
-            "--intermedia-distribution-cutoff",
-            default=None,
-            type=int,
-            help="cutoff of the distribution",
-        )
-        parser.add_argument(
-            "--intermedia-drop-prob",
-            default=0,
-            type=float,
-            help="probability of dropping the followed layers",
-        )
-        parser.add_argument(
-            "--intermedia-temperature",
-            default=1,
-            type=float,
-            help="temperature of the intermedia ctc probability",
-        )
         # fmt: on
 
     @classmethod
@@ -571,47 +535,6 @@ class TransformerEncoder(FairseqEncoder):
         else:
             self.history = None
 
-        # CTC
-        self.use_ctc = getattr(args, "ctc_weight", 0) > 0
-        if self.use_ctc:
-            self.ctc_layer = args.ctc_layer
-            self.inter_ctc = True if self.ctc_layer != args.encoder_layers else False
-            if self.inter_ctc:
-                logger.info("Intermedia CTC loss in layer %d" % self.ctc_layer)
-            self.ctc = CTC(embed_dim,
-                           dictionary_size=decoder_embed_tokens.num_embeddings,
-                           dropout=args.dropout,
-                           need_layernorm=True if self.inter_ctc else False)
-
-            self.ctc.ctc_projection.weight = embed_tokens.weight
-
-        self.intermedia_ctc_layers = []
-        if args.intermedia_ctc_layers is not None:
-            intermedia_ctc_layers = args.intermedia_ctc_layers.split(",")
-            for layer_idx in intermedia_ctc_layers:
-                layer_idx = int(layer_idx)
-                if layer_idx <= 0:
-                    layer_idx += args.encoder_layers
-                self.intermedia_ctc_layers.append(layer_idx)
-
-                logger.info("Intermedia CTC loss in layer %d" % layer_idx)
-
-            if not self.use_ctc:
-                self.ctc = CTC(embed_dim,
-                               dictionary_size=decoder_embed_tokens.num_embeddings,
-                               dropout=args.dropout)
-
-                self.ctc.ctc_projection.weight = embed_tokens.weight
-
-            strategy = None
-            if args.intermedia_adapter == "shrink":
-                strategy = getattr(args, "ctc_compress_strategy", None)
-            elif args.intermedia_adapter == "league":
-                strategy = getattr(args, "intermedia_distribution_cutoff", None)
-            self.adapter = Adapter(embed_dim, args.intermedia_adapter,
-                                   None, embed_tokens=decoder_embed_tokens, strategy=strategy)
-            self.intermedia_drop_prob = getattr(args, "intermedia_drop_prob", 0)
-            self.intermedia_temperature = getattr(args, "intermedia_temperature", 1)
 
     def build_encoder_layer(self, args):
         layer = TransformerEncoderLayer(args)
@@ -732,9 +655,6 @@ class TransformerEncoder(FairseqEncoder):
             self.history.push(x)
 
         # encoder layers
-        layer_idx = 0
-        ctc_logit = None
-        intermedia_ctc_logits = []
         for layer in self.layers:
             if self.history is not None:
                 x = self.history.pop()
@@ -742,29 +662,10 @@ class TransformerEncoder(FairseqEncoder):
             x = layer(
                 x, encoder_padding_mask=encoder_padding_mask if has_pads else None
             )
-            layer_idx += 1
             if return_all_hiddens:
                 assert encoder_states is not None
                 encoder_states.append(x)
 
-            # CTC
-            if self.use_ctc and self.inter_ctc and self.ctc_layer == layer_idx:
-                ctc_logit = self.ctc(x.clone())
-
-            # Intermedia CTC
-            if layer_idx in self.intermedia_ctc_layers:
-                if self.intermedia_drop_prob > 0:
-                    p = torch.rand(1).uniform_()
-                    if p < self.intermedia_drop_prob:
-                        break
-
-                norm_x = self.layer_norm(x)
-                logit = self.ctc(norm_x)
-
-                intermedia_ctc_logits.append(logit)
-                prob = utils.softmax(logit / self.intermedia_temperature, dim=-1)
-                x, encoder_padding_mask = self.adapter([x, prob], encoder_padding_mask)
-
             if self.history is not None:
                 self.history.push(x)
 
@@ -774,16 +675,12 @@ class TransformerEncoder(FairseqEncoder):
         if self.layer_norm is not None:
             x = self.layer_norm(x)
 
-        if self.use_ctc and ctc_logit is None:
-            ctc_logit = self.ctc(x)
-
         # The Pytorch Mobile lite interpreter does not supports returning NamedTuple in
         # `forward` so we use a dictionary instead.
         # TorchScript does not support mixed values so the values are all lists.
         # The empty list is equivalent to None.
         return {
             "encoder_out": [x],  # T x B x C
-            "ctc_logit": [] if ctc_logit is None else [ctc_logit],  # T x B x C
             "encoder_padding_mask": [encoder_padding_mask],  # B x T
             "encoder_embedding": [encoder_embedding],  # B x T x C
             "encoder_states": encoder_states,  # List[T x B x C]
@@ -1436,12 +1333,6 @@ def base_architecture(args):
     args.max_decoder_relative_length = getattr(args, 'max_decoder_relative_length', -1)
     args.k_only = getattr(args, 'k_only', True)
 
-    # CTC
-    args.ctc_layer = getattr(args, "ctc_layer", args.encoder_layers)
-    args.intermedia_ctc_layers = getattr(args, "intermedia_ctc_layers", None)
-    args.intermedia_adapter = getattr(args, "intermedia_adapter", None)
-    args.intermedia_drop_prob = getattr(args, "intermedia_drop_prob", 0)
-
 
 @register_model_architecture("transformer", "transformer_relative")
 def transformer_rpr(args):

fairseq/models/transformer_ctc.py

+# Copyright (c) Facebook, Inc. and its affiliates.
+#
+# This source code is licensed under the MIT license found in the
+# LICENSE file in the root directory of this source tree.
+
+import math
+from typing import Any, Dict, List, Optional, Tuple
+import logging
+
+import torch
+import torch.nn as nn
+from fairseq import checkpoint_utils, utils
+from fairseq.distributed import fsdp_wrap
+from fairseq.models import (
+    FairseqEncoder,
+    FairseqEncoderDecoderModel,
+    FairseqIncrementalDecoder,
+    register_model,
+    register_model_architecture,
+)
+from fairseq.modules.speech_to_text import Adapter, CTC
+from fairseq.modules import (
+    AdaptiveSoftmax,
+    FairseqDropout,
+    LayerDropModuleList,
+    LayerNorm,
+    PositionalEmbedding,
+    SinusoidalPositionalEmbedding,
+    RelPositionalEncoding,
+    LegacyRelPositionalEncoding,
+    TransformerDecoderLayer,
+    TransformerEncoderLayer,
+    DynamicLinearCombination
+)
+from fairseq.modules.checkpoint_activations import checkpoint_wrapper
+from fairseq.modules.quant_noise import quant_noise as apply_quant_noise_
+from torch import Tensor
+
+
+DEFAULT_MAX_SOURCE_POSITIONS = 1024
+DEFAULT_MAX_TARGET_POSITIONS = 1024
+
+logger = logging.getLogger(__name__)
+
+
+@register_model("transformer_ctc")
+class TransformerCTCModel(FairseqEncoderDecoderModel):
+    """
+    Transformer model from `"Attention Is All You Need" (Vaswani, et al, 2017)
+    <https://arxiv.org/abs/1706.03762>`_.
+
+    Args:
+        encoder (TransformerEncoder): the encoder
+        decoder (TransformerDecoder): the decoder
+
+    The Transformer model provides the following named architectures and
+    command-line arguments:
+
+    .. argparse::
+        :ref: fairseq.models.transformer_parser
+        :prog:
+    """
+
+    @classmethod
+    def hub_models(cls):
+        # fmt: off
+
+        def moses_subword(path):
+            return {
+                'path': path,
+                'tokenizer': 'moses',
+                'bpe': 'subword_nmt',
+            }
+
+        def moses_fastbpe(path):
+            return {
+                'path': path,
+                'tokenizer': 'moses',
+                'bpe': 'fastbpe',
+            }
+
+        def spm(path):
+            return {
+                'path': path,
+                'bpe': 'sentencepiece',
+                'tokenizer': 'space',
+            }
+
+        return {
+            'transformer.wmt14.en-fr': moses_subword('https://dl.fbaipublicfiles.com/fairseq/models/wmt14.en-fr.joined-dict.transformer.tar.bz2'),
+            'transformer.wmt16.en-de': 'https://dl.fbaipublicfiles.com/fairseq/models/wmt16.en-de.joined-dict.transformer.tar.bz2',
+            'transformer.wmt18.en-de': moses_subword('https://dl.fbaipublicfiles.com/fairseq/models/wmt18.en-de.ensemble.tar.gz'),
+            'transformer.wmt19.en-de': moses_fastbpe('https://dl.fbaipublicfiles.com/fairseq/models/wmt19.en-de.joined-dict.ensemble.tar.gz'),
+            'transformer.wmt19.en-ru': moses_fastbpe('https://dl.fbaipublicfiles.com/fairseq/models/wmt19.en-ru.ensemble.tar.gz'),
+            'transformer.wmt19.de-en': moses_fastbpe('https://dl.fbaipublicfiles.com/fairseq/models/wmt19.de-en.joined-dict.ensemble.tar.gz'),
+            'transformer.wmt19.ru-en': moses_fastbpe('https://dl.fbaipublicfiles.com/fairseq/models/wmt19.ru-en.ensemble.tar.gz'),
+            'transformer.wmt19.en-de.single_model': moses_fastbpe('https://dl.fbaipublicfiles.com/fairseq/models/wmt19.en-de.joined-dict.single_model.tar.gz'),
+            'transformer.wmt19.en-ru.single_model': moses_fastbpe('https://dl.fbaipublicfiles.com/fairseq/models/wmt19.en-ru.single_model.tar.gz'),
+            'transformer.wmt19.de-en.single_model': moses_fastbpe('https://dl.fbaipublicfiles.com/fairseq/models/wmt19.de-en.joined-dict.single_model.tar.gz'),
+            'transformer.wmt19.ru-en.single_model': moses_fastbpe('https://dl.fbaipublicfiles.com/fairseq/models/wmt19.ru-en.single_model.tar.gz'),
+            'transformer.wmt20.en-ta': spm('https://dl.fbaipublicfiles.com/fairseq/models/wmt20.en-ta.single.tar.gz'),
+            'transformer.wmt20.en-iu.news': spm('https://dl.fbaipublicfiles.com/fairseq/models/wmt20.en-iu.news.single.tar.gz'),
+            'transformer.wmt20.en-iu.nh': spm('https://dl.fbaipublicfiles.com/fairseq/models/wmt20.en-iu.nh.single.tar.gz'),
+            'transformer.wmt20.ta-en': spm('https://dl.fbaipublicfiles.com/fairseq/models/wmt20.ta-en.single.tar.gz'),
+            'transformer.wmt20.iu-en.news': spm('https://dl.fbaipublicfiles.com/fairseq/models/wmt20.iu-en.news.single.tar.gz'),
+            'transformer.wmt20.iu-en.nh': spm('https://dl.fbaipublicfiles.com/fairseq/models/wmt20.iu-en.nh.single.tar.gz'),
+        }
+        # fmt: on
+
+    def __init__(self, args, encoder, decoder):
+        super().__init__(encoder, decoder)
+        self.args = args
+        self.supports_align_args = True
+
+    @staticmethod
+    def add_args(parser):
+        """Add model-specific arguments to the parser."""
+        # fmt: off
+        parser.add_argument('--activation-fn',
+                            choices=utils.get_available_activation_fns(),
+                            help='activation function to use')
+        parser.add_argument('--dropout', type=float, metavar='D',
+                            help='dropout probability')
+        parser.add_argument('--attention-dropout', type=float, metavar='D',
+                            help='dropout probability for attention weights')
+        parser.add_argument('--activation-dropout', '--relu-dropout', type=float, metavar='D',
+                            help='dropout probability after activation in FFN.')
+        parser.add_argument('--encoder-embed-path', type=str, metavar='STR',
+                            help='path to pre-trained encoder embedding')
+        parser.add_argument('--encoder-embed-dim', type=int, metavar='N',
+                            help='encoder embedding dimension')
+        parser.add_argument('--encoder-ffn-embed-dim', type=int, metavar='N',
+                            help='encoder embedding dimension for FFN')
+        parser.add_argument('--encoder-layers', type=int, metavar='N',
+                            help='num encoder layers')
+        parser.add_argument('--encoder-attention-heads', type=int, metavar='N',
+                            help='num encoder attention heads')
+        parser.add_argument('--encoder-normalize-before', action='store_true',
+                            help='apply layernorm before each encoder block')
+        parser.add_argument('--encoder-learned-pos', action='store_true',
+                            help='use learned positional embeddings in the encoder')
+        parser.add_argument('--decoder-embed-path', type=str, metavar='STR',
+                            help='path to pre-trained decoder embedding')
+        parser.add_argument('--decoder-embed-dim', type=int, metavar='N',
+                            help='decoder embedding dimension')
+        parser.add_argument('--decoder-ffn-embed-dim', type=int, metavar='N',
+                            help='decoder embedding dimension for FFN')
+        parser.add_argument('--decoder-layers', type=int, metavar='N',
+                            help='num decoder layers')
+        parser.add_argument('--decoder-attention-heads', type=int, metavar='N',
+                            help='num decoder attention heads')
+        parser.add_argument('--decoder-learned-pos', action='store_true',
+                            help='use learned positional embeddings in the decoder')
+        parser.add_argument('--decoder-normalize-before', action='store_true',
+                            help='apply layernorm before each decoder block')
+        parser.add_argument('--decoder-output-dim', type=int, metavar='N',
+                            help='decoder output dimension (extra linear layer '
+                                 'if different from decoder embed dim')
+        parser.add_argument('--share-decoder-input-output-embed', action='store_true',
+                            help='share decoder input and output embeddings')
+        parser.add_argument('--share-all-embeddings', action='store_true',
+                            help='share encoder, decoder and output embeddings'
+                                 ' (requires shared dictionary and embed dim)')
+        parser.add_argument('--no-token-positional-embeddings', default=False, action='store_true',
+                            help='if set, disables positional embeddings (outside self attention)')
+        parser.add_argument('--adaptive-softmax-cutoff', metavar='EXPR',
+                            help='comma separated list of adaptive softmax cutoff points. '
+                                 'Must be used with adaptive_loss criterion'),
+        parser.add_argument('--adaptive-softmax-dropout', type=float, metavar='D',
+                            help='sets adaptive softmax dropout for the tail projections')
+        parser.add_argument('--layernorm-embedding', action='store_true',
+                            help='add layernorm to embedding')
+        parser.add_argument('--no-scale-embedding', action='store_true',
+                            help='if True, dont scale embeddings')
+        parser.add_argument('--checkpoint-activations', action='store_true',
+                            help='checkpoint activations at each layer, which saves GPU '
+                                 'memory usage at the cost of some additional compute')
+        parser.add_argument('--offload-activations', action='store_true',
+                            help='checkpoint activations at each layer, then save to gpu. '
+                                 'Sets --checkpoint-activations.')
+        # args for "Cross+Self-Attention for Transformer Models" (Peitz et al., 2019)
+        parser.add_argument('--no-cross-attention', default=False, action='store_true',
+                            help='do not perform cross-attention')
+        parser.add_argument('--cross-self-attention', default=False, action='store_true',
+                            help='perform cross+self-attention')
+        # args for "Reducing Transformer Depth on Demand with Structured Dropout" (Fan et al., 2019)
+        parser.add_argument('--encoder-layerdrop', type=float, metavar='D', default=0,
+                            help='LayerDrop probability for encoder')
+        parser.add_argument('--decoder-layerdrop', type=float, metavar='D', default=0,
+                            help='LayerDrop probability for decoder')
+        parser.add_argument('--encoder-layers-to-keep', default=None,
+                            help='which layers to *keep* when pruning as a comma-separated list')
+        parser.add_argument('--decoder-layers-to-keep', default=None,
+                            help='which layers to *keep* when pruning as a comma-separated list')
+        # args for Training with Quantization Noise for Extreme Model Compression ({Fan*, Stock*} et al., 2020)
+        parser.add_argument('--quant-noise-pq', type=float, metavar='D', default=0,
+                            help='iterative PQ quantization noise at training time')
+        parser.add_argument('--quant-noise-pq-block-size', type=int, metavar='D', default=8,
+                            help='block size of quantization noise at training time')
+        parser.add_argument('--quant-noise-scalar', type=float, metavar='D', default=0,
+                            help='scalar quantization noise and scalar quantization at training time')
+
+        parser.add_argument(
+            "--encoder-attention-type",
+            type=str,
+            default="selfattn",
+            choices=[
+                "selfattn",
+                "rel_selfattn",
+                "relative",
+                "rel_pos",
+                "rel_pos_legacy"
+            ],
+            help="transformer encoder self-attention layer type"
+        )
+        parser.add_argument(
+            "--decoder-attention-type",
+            type=str,
+            default="selfattn",
+            choices=[
+                "selfattn",
+                "rel_selfattn",
+                "relative",
+            ],
+            help="transformer decoder self-attention layer type"
+        )
+        # DLCL parameters
+        parser.add_argument(
+            "--use-enc-dlcl",
+            default=False,
+            action='store_true',
+            help="use dlcl encoder",
+        )
+        parser.add_argument(
+            "--use-dec-dlcl",
+            default=False,
+            action='store_true',
+            help="use dlcl encoder",
+        )
+        parser.add_argument('--init-value', type=str, default='avg', choices=['avg', 'one'],
+                            help='how to init the learned weight matrix')
+        parser.add_argument('--weight-type', type=str, default='scalar',
+                            help='type of learned weight [scalar, scalar_n(n>1), vector]')
+        parser.add_argument('--encoder-learnable', type=eval, default='True',
+                            help='enable to learn weights for encoder')
+        parser.add_argument('--decoder-learnable', type=eval, default='True',
+                            help='enable to learn weights for decoder')
+        parser.add_argument('--normalize-learned-weight', type=eval, default='False',
+                            help='normalize learned weight by softmax')
+        parser.add_argument('--normalize-embedding', type=eval, default='False',
+                            help='normalize the input of embedding')
+        parser.add_argument('--history-dropout', type=float, default=0.0, metavar='D',
+                            help='dropout for history output')
+        parser.add_argument('--history-window-size', type=int, default='-1',
+                            help='how many past layers are considered. -1 means all')
+        # relative position representation
+        parser.add_argument('--max-encoder-relative-length', type=int, default=-1,
+                            help='the max encoder relative length')
+        parser.add_argument('--max-decoder-relative-length', type=int, default=-1,
+                            help='the max decoder relative length')
+        parser.add_argument('--k-only', default=False, action='store_true',
+                            help='select the relative mode to map relative position information')
+        # args for loading pre-trained models
+        parser.add_argument(
+            "--load-pretrained-encoder-from",
+            type=str,
+            metavar="STR",
+            help="model to take encoder weights from (for initialization)",
+        )
+        parser.add_argument(
+            "--load-pretrained-decoder-from",
+            type=str,
+            metavar="STR",
+            help="model to take decoder weights from (for initialization)",
+        )
+        parser.add_argument(
+            "--encoder-freeze-module",
+            type=str,
+            metavar="STR",
+            help="freeze the module of the encoder",
+        )
+        parser.add_argument(
+            "--decoder-freeze-module",
+            type=str,
+            metavar="STR",
+            help="freeze the module of the decoder",
+        )
+
+        parser.add_argument('--interleave-dropout', default=0, type=float, metavar='D',
+                            help='interleaved dropout probability')
+
+        parser.add_argument(
+            "--squeeze-excitation",
+            default=False,
+            action='store_true',
+            help="use squeeze and excitation method",
+        )
+        # CTC
+        parser.add_argument(
+            "--ctc-layer",
+            type=int,
+            help="ctc layers for target sentence",
+        )
+        parser.add_argument(
+            "--intermedia-ctc-layers",
+            default=None,
+            type=str,
+            help="the position of the ctc loss, separated by comma ",
+        )
+        parser.add_argument(
+            "--intermedia-adapter",
+            default="none",
+            type=str,
+            help="type of intermedia adapter",
+        )
+        parser.add_argument(
+            "--intermedia-distribution-cutoff",
+            default=None,
+            type=int,
+            help="cutoff of the distribution",
+        )
+        parser.add_argument(
+            "--intermedia-drop-prob",
+            default=0,
+            type=float,
+            help="probability of dropping the followed layers",
+        )
+        parser.add_argument(
+            "--intermedia-temperature",
+            default=1,
+            type=float,
+            help="temperature of the intermedia ctc probability",
+        )
+        # fmt: on
+
+    @classmethod
+    def build_model(cls, args, task):
+        """Build a new model instance."""
+
+        # make sure all arguments are present in older models
+        base_architecture(args)
+
+        if args.encoder_layers_to_keep:
+            args.encoder_layers = len(args.encoder_layers_to_keep.split(","))
+        if args.decoder_layers_to_keep:
+            args.decoder_layers = len(args.decoder_layers_to_keep.split(","))
+
+        if getattr(args, "max_source_positions", None) is None:
+            args.max_source_positions = DEFAULT_MAX_SOURCE_POSITIONS
+        if getattr(args, "max_target_positions", None) is None:
+            args.max_target_positions = DEFAULT_MAX_TARGET_POSITIONS
+
+        src_dict, tgt_dict = task.source_dictionary, task.target_dictionary
+
+        if args.share_all_embeddings:
+            if src_dict != tgt_dict:
+                raise ValueError("--share-all-embeddings requires a joined dictionary")
+            if args.encoder_embed_dim != args.decoder_embed_dim:
+                raise ValueError(
+                    "--share-all-embeddings requires --encoder-embed-dim to match --decoder-embed-dim"
+                )
+            if args.decoder_embed_path and (
+                args.decoder_embed_path != args.encoder_embed_path
+            ):
+                raise ValueError(
+                    "--share-all-embeddings not compatible with --decoder-embed-path"
+                )
+            encoder_embed_tokens = cls.build_embedding(
+                args, src_dict, args.encoder_embed_dim, args.encoder_embed_path
+            )
+            decoder_embed_tokens = encoder_embed_tokens
+            args.share_decoder_input_output_embed = True
+        else:
+            encoder_embed_tokens = cls.build_embedding(
+                args, src_dict, args.encoder_embed_dim, args.encoder_embed_path
+            )
+            decoder_embed_tokens = cls.build_embedding(
+                args, tgt_dict, args.decoder_embed_dim, args.decoder_embed_path
+            )
+        if getattr(args, "offload_activations", False):
+            args.checkpoint_activations = True  # offloading implies checkpointing
+        encoder = cls.build_encoder(args, src_dict, encoder_embed_tokens, decoder_embed_tokens)
+        if getattr(args, "encoder_freeze_module", None):
+            utils.freeze_parameters(encoder, args.encoder_freeze_module)
+            logging.info("freeze the encoder module: {}".format(args.encoder_freeze_module))
+
+        decoder = cls.build_decoder(args, tgt_dict, decoder_embed_tokens)
+        if getattr(args, "decoder_freeze_module", None):
+            utils.freeze_parameters(decoder, args.decoder_freeze_module)
+            logging.info("freeze the decoder module: {}".format(args.decoder_freeze_module))
+
+        if not args.share_all_embeddings:
+            encoder = fsdp_wrap(encoder, min_num_params=1e8)
+            decoder = fsdp_wrap(decoder, min_num_params=1e8)
+        return cls(args, encoder, decoder)
+
+    @classmethod
+    def build_embedding(cls, args, dictionary, embed_dim, path=None):
+        num_embeddings = len(dictionary)
+        padding_idx = dictionary.pad()
+
+        emb = Embedding(num_embeddings, embed_dim, padding_idx)
+        # if provided, load from preloaded dictionaries
+        if path:
+            embed_dict = utils.parse_embedding(path)
+            utils.load_embedding(embed_dict, dictionary, emb)
+        return emb
+
+    @classmethod
+    def build_encoder(cls, args, src_dict, embed_tokens, decoder_embed_tokens=None):
+        encoder = TransformerCTCEncoder(args, src_dict, embed_tokens, decoder_embed_tokens)
+        if getattr(args, "load_pretrained_encoder_from", None):
+            logger.info(
+                f"loaded pretrained encoder from: "
+                f"{args.load_pretrained_encoder_from}"
+            )
+            encoder = checkpoint_utils.load_pretrained_component_from_model(
+                component=encoder, checkpoint=args.load_pretrained_encoder_from, strict=False
+            )
+
+        return encoder
+
+    @classmethod
+    def build_decoder(cls, args, tgt_dict, embed_tokens):
+        decoder = TransformerDecoder(
+            args,
+            tgt_dict,
+            embed_tokens,
+            no_encoder_attn=getattr(args, "no_cross_attention", False),
+        )
+
+        if getattr(args, "load_pretrained_decoder_from", None):
+            logger.info(
+                f"loaded pretrained decoder from: "
+                f"{args.load_pretrained_decoder_from}"
+            )
+            decoder = checkpoint_utils.load_pretrained_component_from_model(
+                component=decoder, checkpoint=args.load_pretrained_decoder_from, strict=False
+            )
+
+        return decoder
+
+    # TorchScript doesn't support optional arguments with variable length (**kwargs).
+    # Current workaround is to add union of all arguments in child classes.
+    def forward(
+        self,
+        src_tokens,
+        src_lengths,
+        prev_output_tokens,
+        return_all_hiddens: bool = True,
+        features_only: bool = False,
+        alignment_layer: Optional[int] = None,
+        alignment_heads: Optional[int] = None,
+    ):
+        """
+        Run the forward pass for an encoder-decoder model.
+
+        Copied from the base class, but without ``**kwargs``,
+        which are not supported by TorchScript.
+        """
+        encoder_out = self.encoder(
+            src_tokens, src_lengths=src_lengths, return_all_hiddens=return_all_hiddens
+        )
+        decoder_out = self.decoder(
+            prev_output_tokens,
+            encoder_out=encoder_out,
+            features_only=features_only,
+            alignment_layer=alignment_layer,
+            alignment_heads=alignment_heads,
+            src_lengths=src_lengths,
+            return_all_hiddens=return_all_hiddens,
+        )
+        return decoder_out
+
+    # Since get_normalized_probs is in the Fairseq Model which is not scriptable,
+    # I rewrite the get_normalized_probs from Base Class to call the
+    # helper function in the Base Class.
+    @torch.jit.export
+    def get_normalized_probs(
+        self,
+        net_output: Tuple[Tensor, Optional[Dict[str, List[Optional[Tensor]]]]],
+        log_probs: bool,
+        sample: Optional[Dict[str, Tensor]] = None,
+    ):
+        """Get normalized probabilities (or log probs) from a net's output."""
+        return self.get_normalized_probs_scriptable(net_output, log_probs, sample)
+
+
+class TransformerCTCEncoder(FairseqEncoder):
+    """
+    Transformer encoder consisting of *args.encoder_layers* layers. Each layer
+    is a :class:`TransformerEncoderLayer`.
+
+    Args:
+        args (argparse.Namespace): parsed command-line arguments
+        dictionary (~fairseq.data.Dictionary): encoding dictionary
+        embed_tokens (torch.nn.Embedding): input embedding
+    """
+
+    def __init__(self, args, dictionary, embed_tokens, decoder_embed_tokens=None):
+        self.args = args
+        super().__init__(dictionary)
+        self.register_buffer("version", torch.Tensor([3]))
+
+        self.dropout_module = FairseqDropout(
+            args.dropout, module_name=self.__class__.__name__
+        )
+        self.encoder_layerdrop = args.encoder_layerdrop
+
+        embed_dim = embed_tokens.embedding_dim
+        self.padding_idx = embed_tokens.padding_idx
+        self.max_source_positions = args.max_source_positions
+
+        self.embed_tokens = embed_tokens
+
+        self.embed_scale = 1.0 if args.no_scale_embedding else math.sqrt(embed_dim)
+
+        self.attn_type = getattr(args, "encoder_attention_type", "selfattn")
+        if self.attn_type == "rel_pos":
+            self.embed_positions = RelPositionalEncoding(
+                args.max_source_positions, args.encoder_embed_dim
+            )
+        elif self.attn_type in ["rel_selfattn", "rel_pos_legacy"]:
+            self.embed_positions = LegacyRelPositionalEncoding(
+                args.encoder_embed_dim, args.dropout, args.max_source_positions
+            )
+        elif self.attn_type == "rope":
+            self.embed_positions = None
+        else:  # Use absolute positional embedding
+            self.embed_positions = (
+                PositionalEmbedding(
+                    args.max_source_positions,
+                    embed_dim,
+                    self.padding_idx,
+                    learned=args.encoder_learned_pos,
+                )
+                if not args.no_token_positional_embeddings
+                else None
+            )
+
+        if getattr(args, "layernorm_embedding", False):
+            self.layernorm_embedding = LayerNorm(embed_dim)
+        else:
+            self.layernorm_embedding = None
+
+        if not args.adaptive_input and args.quant_noise_pq > 0:
+            self.quant_noise = apply_quant_noise_(
+                nn.Linear(embed_dim, embed_dim, bias=False),
+                args.quant_noise_pq,
+                args.quant_noise_pq_block_size,
+            )
+        else:
+            self.quant_noise = None
+
+        if self.encoder_layerdrop > 0.0:
+            self.layers = LayerDropModuleList(p=self.encoder_layerdrop)
+        else:
+            self.layers = nn.ModuleList([])
+        self.layers.extend(
+            [self.build_encoder_layer(args) for i in range(args.encoder_layers)]
+        )
+        self.num_layers = len(self.layers)
+
+        if args.encoder_normalize_before:
+            self.layer_norm = LayerNorm(embed_dim)
+        else:
+            self.layer_norm = None
+
+        if args.use_enc_dlcl:
+            self.history = DynamicLinearCombination(args, is_encoder=True)
+        else:
+            self.history = None
+
+        # CTC
+        self.use_ctc = getattr(args, "ctc_weight", 0) > 0
+        if self.use_ctc:
+            self.ctc_layer = args.ctc_layer
+            self.inter_ctc = True if self.ctc_layer != args.encoder_layers else False
+            if self.inter_ctc:
+                logger.info("Intermedia CTC loss in layer %d" % self.ctc_layer)
+            self.ctc = CTC(embed_dim,
+                           dictionary_size=decoder_embed_tokens.num_embeddings,
+                           dropout=args.dropout,
+                           need_layernorm=True if self.inter_ctc else False)
+
+            self.ctc.ctc_projection.weight = embed_tokens.weight
+
+        self.intermedia_ctc_layers = []
+        if args.intermedia_ctc_layers is not None:
+            intermedia_ctc_layers = args.intermedia_ctc_layers.split(",")
+            for layer_idx in intermedia_ctc_layers:
+                layer_idx = int(layer_idx)
+                if layer_idx <= 0:
+                    layer_idx += args.encoder_layers
+                self.intermedia_ctc_layers.append(layer_idx)
+
+                logger.info("Intermedia CTC loss in layer %d" % layer_idx)
+
+            if not self.use_ctc:
+                self.ctc = CTC(embed_dim,
+                               dictionary_size=decoder_embed_tokens.num_embeddings,
+                               dropout=args.dropout)
+
+                self.ctc.ctc_projection.weight = embed_tokens.weight
+
+            strategy = None
+            if args.intermedia_adapter == "shrink":
+                strategy = getattr(args, "ctc_compress_strategy", None)
+            elif args.intermedia_adapter == "league":
+                strategy = getattr(args, "intermedia_distribution_cutoff", None)
+            self.adapter = Adapter(embed_dim, args.intermedia_adapter,
+                                   decoder_embed_tokens.num_embeddings, embed_tokens=decoder_embed_tokens, strategy=strategy)
+            self.intermedia_drop_prob = getattr(args, "intermedia_drop_prob", 0)
+            self.intermedia_temperature = getattr(args, "intermedia_temperature", 1)
+
+    def build_encoder_layer(self, args):
+        layer = TransformerEncoderLayer(args)
+        if getattr(args, "checkpoint_activations", False):
+            offload_to_cpu = getattr(args, "offload_activations", False)
+            layer = checkpoint_wrapper(layer, offload_to_cpu=offload_to_cpu)
+        layer = fsdp_wrap(layer, min_num_params=1e8)
+        return layer
+
+    def forward_embedding(
+        self, src_tokens, token_embedding: Optional[torch.Tensor] = None
+    ):
+        # embed tokens and positions
+        if token_embedding is None:
+            token_embedding = self.embed_tokens(src_tokens)
+        x = embed = self.embed_scale * token_embedding
+        if self.embed_positions is not None:
+            x = embed + self.embed_positions(src_tokens)
+        if self.layernorm_embedding is not None:
+            x = self.layernorm_embedding(x)
+        x = self.dropout_module(x)
+        if self.quant_noise is not None:
+            x = self.quant_noise(x)
+        return x, embed
+
+    def forward(
+        self,
+        src_tokens,
+        src_lengths: Optional[torch.Tensor] = None,
+        return_all_hiddens: bool = False,
+        token_embeddings: Optional[torch.Tensor] = None,
+    ):
+        """
+        Args:
+            src_tokens (LongTensor): tokens in the source language of shape
+                `(batch, src_len)`
+            src_lengths (torch.LongTensor): lengths of each source sentence of
+                shape `(batch)`
+            return_all_hiddens (bool, optional): also return all of the
+                intermediate hidden states (default: False).
+            token_embeddings (torch.Tensor, optional): precomputed embeddings
+                default `None` will recompute embeddings
+
+        Returns:
+            dict:
+                - **encoder_out** (Tensor): the last encoder layer's output of
+                  shape `(src_len, batch, embed_dim)`
+                - **encoder_padding_mask** (ByteTensor): the positions of
+                  padding elements of shape `(batch, src_len)`
+                - **encoder_embedding** (Tensor): the (scaled) embedding lookup
+                  of shape `(batch, src_len, embed_dim)`
+                - **encoder_states** (List[Tensor]): all intermediate
+                  hidden states of shape `(src_len, batch, embed_dim)`.
+                  Only populated if *return_all_hiddens* is True.
+        """
+        return self.forward_scriptable(src_tokens,
+                                       src_lengths,
+                                       return_all_hiddens,
+                                       token_embeddings)
+
+    # TorchScript doesn't support super() method so that the scriptable Subclass
+    # can't access the base class model in Torchscript.
+    # Current workaround is to add a helper function with different name and
+    # call the helper function from scriptable Subclass.
+    def forward_scriptable(
+        self,
+        src_tokens,
+        src_lengths: Optional[torch.Tensor] = None,
+        return_all_hiddens: bool = False,
+        token_embeddings: Optional[torch.Tensor] = None,
+    ):
+        """
+        Args:
+            src_tokens (LongTensor): tokens in the source language of shape
+                `(batch, src_len)`
+            src_lengths (torch.LongTensor): lengths of each source sentence of
+                shape `(batch)`
+            return_all_hiddens (bool, optional): also return all of the
+                intermediate hidden states (default: False).
+            token_embeddings (torch.Tensor, optional): precomputed embeddings
+                default `None` will recompute embeddings
+
+        Returns:
+            dict:
+                - **encoder_out** (Tensor): the last encoder layer's output of
+                  shape `(src_len, batch, embed_dim)`
+                - **encoder_padding_mask** (ByteTensor): the positions of
+                  padding elements of shape `(batch, src_len)`
+                - **encoder_embedding** (Tensor): the (scaled) embedding lookup
+                  of shape `(batch, src_len, embed_dim)`
+                - **encoder_states** (List[Tensor]): all intermediate
+                  hidden states of shape `(src_len, batch, embed_dim)`.
+                  Only populated if *return_all_hiddens* is True.
+        """
+        # compute padding mask
+        encoder_padding_mask = src_tokens.eq(self.padding_idx)
+        has_pads = (src_tokens.device.type == "xla" or encoder_padding_mask.any())
+
+        if self.history is not None:
+            self.history.clean()
+
+        x, encoder_embedding = self.forward_embedding(src_tokens, token_embeddings)
+
+        # account for padding while computing the representation
+        if encoder_padding_mask is not None:
+            x = x * (1 - encoder_padding_mask.unsqueeze(-1).type_as(x))
+
+        # B x T x C -> T x B x C
+        x = x.transpose(0, 1)
+
+        encoder_states = []
+
+        if return_all_hiddens:
+            encoder_states.append(x)
+
+        # add emb into history
+        if self.history is not None:
+            self.history.push(x)
+
+        # encoder layers
+        layer_idx = 0
+        ctc_logit = None
+        intermedia_ctc_logits = []
+        for layer in self.layers:
+            if self.history is not None:
+                x = self.history.pop()
+
+            x = layer(
+                x, encoder_padding_mask=encoder_padding_mask if has_pads else None
+            )
+            layer_idx += 1
+            if return_all_hiddens:
+                assert encoder_states is not None
+                encoder_states.append(x)
+
+            # CTC
+            if self.use_ctc and self.inter_ctc and self.ctc_layer == layer_idx:
+                ctc_logit = self.ctc(x.clone())
+
+            # Intermedia CTC
+            if layer_idx in self.intermedia_ctc_layers:
+                if self.intermedia_drop_prob > 0:
+                    p = torch.rand(1).uniform_()
+                    if p < self.intermedia_drop_prob:
+                        break
+
+                norm_x = self.layer_norm(x)
+                logit = self.ctc(norm_x)
+
+                intermedia_ctc_logits.append(logit)
+                prob = utils.softmax(logit / self.intermedia_temperature, dim=-1)
+                x, encoder_padding_mask = self.adapter([x, prob], encoder_padding_mask)
+
+            if self.history is not None:
+                self.history.push(x)
+
+        if self.history is not None:
+            x = self.history.pop()
+
+        if self.layer_norm is not None:
+            x = self.layer_norm(x)
+
+        if self.use_ctc and ctc_logit is None:
+            ctc_logit = self.ctc(x)
+
+        # The Pytorch Mobile lite interpreter does not supports returning NamedTuple in
+        # `forward` so we use a dictionary instead.
+        # TorchScript does not support mixed values so the values are all lists.
+        # The empty list is equivalent to None.
+        return {
+            "encoder_out": [x],  # T x B x C
+            "ctc_logit": [] if ctc_logit is None else [ctc_logit],  # T x B x C
+            "intermedia_ctc_logits": intermedia_ctc_logits,  # T x B x C
+            "encoder_padding_mask": [encoder_padding_mask],  # B x T
+            "encoder_embedding": [encoder_embedding],  # B x T x C
+            "encoder_states": encoder_states,  # List[T x B x C]
+            "src_tokens": [],
+            "src_lengths": [],
+        }
+
+    @torch.jit.export
+    def reorder_encoder_out(self, encoder_out: Dict[str, List[Tensor]], new_order):
+        """
+        Reorder encoder output according to *new_order*.
+
+        Args:
+            encoder_out: output from the ``forward()`` method
+            new_order (LongTensor): desired order
+
+        Returns:
+            *encoder_out* rearranged according to *new_order*
+        """
+        if len(encoder_out["encoder_out"]) == 0:
+            new_encoder_out = []
+        else:
+            new_encoder_out = [encoder_out["encoder_out"][0].index_select(1, new_order)]
+        if len(encoder_out["encoder_padding_mask"]) == 0:
+            new_encoder_padding_mask = []
+        else:
+            new_encoder_padding_mask = [
+                encoder_out["encoder_padding_mask"][0].index_select(0, new_order)
+            ]
+        if len(encoder_out["encoder_embedding"]) == 0:
+            new_encoder_embedding = []
+        else:
+            new_encoder_embedding = [
+                encoder_out["encoder_embedding"][0].index_select(0, new_order)
+            ]
+
+        if len(encoder_out["src_tokens"]) == 0:
+            src_tokens = []
+        else:
+            src_tokens = [(encoder_out["src_tokens"][0]).index_select(0, new_order)]
+
+        if len(encoder_out["src_lengths"]) == 0:
+            src_lengths = []
+        else:
+            src_lengths = [(encoder_out["src_lengths"][0]).index_select(0, new_order)]
+
+        encoder_states = encoder_out["encoder_states"]
+        if len(encoder_states) > 0:
+            for idx, state in enumerate(encoder_states):
+                encoder_states[idx] = state.index_select(1, new_order)
+
+        return {
+            "encoder_out": new_encoder_out,  # T x B x C
+            "encoder_padding_mask": new_encoder_padding_mask,  # B x T
+            "encoder_embedding": new_encoder_embedding,  # B x T x C
+            "encoder_states": encoder_states,  # List[T x B x C]
+            "src_tokens": src_tokens,  # B x T
+            "src_lengths": src_lengths,  # B x 1
+        }
+
+    def max_positions(self):
+        """Maximum input length supported by the encoder."""
+        if self.embed_positions is None:
+            return self.max_source_positions
+        return min(self.max_source_positions, self.embed_positions.max_positions)
+
+    def upgrade_state_dict_named(self, state_dict, name):
+        """Upgrade a (possibly old) state dict for new versions of fairseq."""
+        if isinstance(self.embed_positions, SinusoidalPositionalEmbedding):
+            weights_key = "{}.embed_positions.weights".format(name)
+            if weights_key in state_dict:
+                print("deleting {0}".format(weights_key))
+                del state_dict[weights_key]
+            state_dict[
+                "{}.embed_positions._float_tensor".format(name)
+            ] = torch.FloatTensor(1)
+        for i in range(self.num_layers):
+            # update layer norms
+            self.layers[i].upgrade_state_dict_named(
+                state_dict, "{}.layers.{}".format(name, i)
+            )
+
+        version_key = "{}.version".format(name)
+        if utils.item(state_dict.get(version_key, torch.Tensor([1]))[0]) < 2:
+            # earlier checkpoints did not normalize after the stack of layers
+            self.layer_norm = None
+            self.normalize = False
+            state_dict[version_key] = torch.Tensor([1])
+        return state_dict
+
+
+class TransformerDecoder(FairseqIncrementalDecoder):
+    """
+    Transformer decoder consisting of *args.decoder_layers* layers. Each layer
+    is a :class:`TransformerDecoderLayer`.
+
+    Args:
+        args (argparse.Namespace): parsed command-line arguments
+        dictionary (~fairseq.data.Dictionary): decoding dictionary
+        embed_tokens (torch.nn.Embedding): output embedding
+        no_encoder_attn (bool, optional): whether to attend to encoder outputs
+            (default: False).
+    """
+
+    def __init__(self, args, dictionary, embed_tokens, no_encoder_attn=False):
+        self.args = args
+        super().__init__(dictionary)
+        self.register_buffer("version", torch.Tensor([3]))
+        self._future_mask = torch.empty(0)
+
+        self.dropout_module = FairseqDropout(
+            args.dropout, module_name=self.__class__.__name__
+        )
+        self.decoder_layerdrop = args.decoder_layerdrop
+        self.share_input_output_embed = args.share_decoder_input_output_embed
+
+        input_embed_dim = embed_tokens.embedding_dim
+        embed_dim = args.decoder_embed_dim
+        self.embed_dim = embed_dim
+        self.output_embed_dim = args.decoder_output_dim
+
+        self.padding_idx = embed_tokens.padding_idx
+        self.max_target_positions = args.max_target_positions
+
+        self.embed_tokens = embed_tokens
+
+        self.embed_scale = 1.0 if args.no_scale_embedding else math.sqrt(embed_dim)
+
+        if not args.adaptive_input and args.quant_noise_pq > 0:
+            self.quant_noise = apply_quant_noise_(
+                nn.Linear(embed_dim, embed_dim, bias=False),
+                args.quant_noise_pq,
+                args.quant_noise_pq_block_size,
+            )
+        else:
+            self.quant_noise = None
+
+        self.project_in_dim = (
+            Linear(input_embed_dim, embed_dim, bias=False)
+            if embed_dim != input_embed_dim
+            else None
+        )
+        self.embed_positions = (
+            PositionalEmbedding(
+                self.max_target_positions,
+                embed_dim,
+                self.padding_idx,
+                learned=args.decoder_learned_pos,
+            )
+            if not args.no_token_positional_embeddings
+            else None
+        )
+
+        if getattr(args, "layernorm_embedding", False):
+            self.layernorm_embedding = LayerNorm(embed_dim)
+        else:
+            self.layernorm_embedding = None
+
+        self.cross_self_attention = getattr(args, "cross_self_attention", False)
+
+        if self.decoder_layerdrop > 0.0:
+            self.layers = LayerDropModuleList(p=self.decoder_layerdrop)
+        else:
+            self.layers = nn.ModuleList([])
+        self.layers.extend(
+            [
+                self.build_decoder_layer(args, no_encoder_attn)
+                for _ in range(args.decoder_layers)
+            ]
+        )
+        self.num_layers = len(self.layers)
+        self.attn_type = getattr(args, "decoder_attention_type", "selfattn")
+
+        if args.decoder_normalize_before and not getattr(
+            args, "no_decoder_final_norm", False
+        ):
+            self.layer_norm = LayerNorm(embed_dim)
+        else:
+            self.layer_norm = None
+
+        if args.use_dec_dlcl:
+            self.history = DynamicLinearCombination(args, is_encoder=False)
+        else:
+            self.history = None
+
+        self.project_out_dim = (
+            Linear(embed_dim, self.output_embed_dim, bias=False)
+            if embed_dim != self.output_embed_dim and not args.tie_adaptive_weights
+            else None
+        )
+
+        self.adaptive_softmax = None
+        self.output_projection = None
+        if args.adaptive_softmax_cutoff is not None:
+            self.adaptive_softmax = AdaptiveSoftmax(
+                len(dictionary),
+                self.output_embed_dim,
+                utils.eval_str_list(args.adaptive_softmax_cutoff, type=int),
+                dropout=args.adaptive_softmax_dropout,
+                adaptive_inputs=embed_tokens if args.tie_adaptive_weights else None,
+                factor=args.adaptive_softmax_factor,
+                tie_proj=args.tie_adaptive_proj,
+            )
+        elif self.share_input_output_embed:
+            self.output_projection = nn.Linear(
+                self.embed_tokens.weight.shape[1],
+                self.embed_tokens.weight.shape[0],
+                bias=False,
+            )
+            self.output_projection.weight = self.embed_tokens.weight
+        else:
+            self.output_projection = nn.Linear(
+                self.output_embed_dim, len(dictionary), bias=False
+            )
+            nn.init.normal_(
+                self.output_projection.weight, mean=0, std=self.output_embed_dim ** -0.5
+            )
+
+        self.gather_attn_weight = getattr(args, "gather_attn_weight", False)
+        #self.gather_attn_weight = True
+        self.attn_weights = dict()
+
+    def build_decoder_layer(self, args, no_encoder_attn=False):
+        layer = TransformerDecoderLayer(args, no_encoder_attn)
+        if getattr(args, "checkpoint_activations", False):
+            offload_to_cpu = getattr(args, "offload_activations", False)
+            layer = checkpoint_wrapper(layer, offload_to_cpu=offload_to_cpu)
+        layer = fsdp_wrap(layer, min_num_params=1e8)
+        return layer
+
+    def forward(
+        self,
+        prev_output_tokens,
+        encoder_out: Optional[Dict[str, List[Tensor]]] = None,
+        incremental_state: Optional[Dict[str, Dict[str, Optional[Tensor]]]] = None,
+        features_only: bool = False,
+        full_context_alignment: bool = False,
+        alignment_layer: Optional[int] = None,
+        alignment_heads: Optional[int] = None,
+        src_lengths: Optional[Any] = None,
+        return_all_hiddens: bool = False,
+    ):
+        """
+        Args:
+            prev_output_tokens (LongTensor): previous decoder outputs of shape
+                `(batch, tgt_len)`, for teacher forcing
+            encoder_out (optional): output from the encoder, used for
+                encoder-side attention
+            incremental_state (dict): dictionary used for storing state during
+                :ref:`Incremental decoding`
+            features_only (bool, optional): only return features without
+                applying output layer (default: False).
+            full_context_alignment (bool, optional): don't apply
+                auto-regressive mask to self-attention (default: False).
+
+        Returns:
+            tuple:
+                - the decoder's output of shape `(batch, tgt_len, vocab)`
+                - a dictionary with any model-specific outputs
+        """
+        x, extra = self.extract_features(
+            prev_output_tokens,
+            encoder_out=encoder_out,
+            incremental_state=incremental_state,
+            full_context_alignment=full_context_alignment,
+            alignment_layer=alignment_layer,
+            alignment_heads=alignment_heads,
+        )
+        if not features_only:
+            x = self.output_layer(x)
+        return x, extra
+
+    def extract_features(
+        self,
+        prev_output_tokens,
+        encoder_out: Optional[Dict[str, List[Tensor]]],
+        incremental_state: Optional[Dict[str, Dict[str, Optional[Tensor]]]] = None,
+        full_context_alignment: bool = False,
+        alignment_layer: Optional[int] = None,
+        alignment_heads: Optional[int] = None,
+    ):
+        return self.extract_features_scriptable(
+            prev_output_tokens,
+            encoder_out,
+            incremental_state,
+            full_context_alignment,
+            alignment_layer,
+            alignment_heads,
+        )
+
+    """
+    A scriptable subclass of this class has an extract_features method and calls
+    super().extract_features, but super() is not supported in torchscript. A copy of
+    this function is made to be used in the subclass instead.
+    """
+
+    def extract_features_scriptable(
+        self,
+        prev_output_tokens,
+        encoder_out: Optional[Dict[str, List[Tensor]]],
+        incremental_state: Optional[Dict[str, Dict[str, Optional[Tensor]]]] = None,
+        full_context_alignment: bool = False,
+        alignment_layer: Optional[int] = None,
+        alignment_heads: Optional[int] = None,
+    ):
+        """
+        Similar to *forward* but only return features.
+
+        Includes several features from "Jointly Learning to Align and
+        Translate with Transformer Models" (Garg et al., EMNLP 2019).
+
+        Args:
+            full_context_alignment (bool, optional): don't apply
+                auto-regressive mask to self-attention (default: False).
+            alignment_layer (int, optional): return mean alignment over
+                heads at this layer (default: last layer).
+            alignment_heads (int, optional): only average alignment over
+                this many heads (default: all heads).
+
+        Returns:
+            tuple:
+                - the decoder's features of shape `(batch, tgt_len, embed_dim)`
+                - a dictionary with any model-specific outputs
+        """
+        if self.history is not None:
+            self.history.clean()
+
+        if alignment_layer is None:
+            alignment_layer = self.num_layers - 1
+
+        # embed positions
+        positions = None
+        if self.embed_positions is not None:
+            positions = self.embed_positions(
+                prev_output_tokens, incremental_state=incremental_state
+            )
+
+        if incremental_state is not None:
+            prev_output_tokens = prev_output_tokens[:, -1:]
+            if positions is not None:
+                positions = positions[:, -1:]
+
+        # embed tokens and positions
+        x = self.embed_scale * self.embed_tokens(prev_output_tokens)
+
+        if self.quant_noise is not None:
+            x = self.quant_noise(x)
+
+        if self.project_in_dim is not None:
+            x = self.project_in_dim(x)
+
+        if positions is not None and self.attn_type != "rel_selfattn":
+            x += positions
+
+        if self.layernorm_embedding is not None:
+            x = self.layernorm_embedding(x)
+
+        x = self.dropout_module(x)
+
+        # B x T x C -> T x B x C
+        x = x.transpose(0, 1)
+
+        # add emb into history
+        if self.history is not None:
+            self.history.push(x)
+
+        self_attn_padding_mask: Optional[Tensor] = None
+        if self.cross_self_attention or prev_output_tokens.eq(self.padding_idx).any():
+            self_attn_padding_mask = prev_output_tokens.eq(self.padding_idx)
+
+        mixup = None
+        if "mixup" in encoder_out and encoder_out["mixup"] is not None:
+            mixup = encoder_out["mixup"]
+
+            coef = mixup["coef"]
+            idx1 = mixup["index1"]
+            idx2 = mixup["index2"]
+
+            x1 = x[:, idx1]
+            x2 = x[:, idx2]
+            x = coef * x1 + (1 - coef) * x2
+
+            if self_attn_padding_mask is not None:
+                pad1 = self_attn_padding_mask[idx1]
+                pad2 = self_attn_padding_mask[idx2]
+                self_attn_padding_mask = pad1 + pad2
+
+        # decoder layers
+        avg_attn = None
+        attn: Optional[Tensor] = None
+        inner_states: List[Optional[Tensor]] = [x]
+        for idx, layer in enumerate(self.layers):
+            if self.history is not None:
+                x = self.history.pop()
+
+            if incremental_state is None and not full_context_alignment:
+                self_attn_mask = self.buffered_future_mask(x)
+            else:
+                self_attn_mask = None
+
+            x, layer_attn, _ = layer(
+                x,
+                encoder_out["encoder_out"][0]
+                if (encoder_out is not None and len(encoder_out["encoder_out"]) > 0)
+                else None,
+                encoder_out["encoder_padding_mask"][0]
+                if (
+                    encoder_out is not None
+                    and len(encoder_out["encoder_padding_mask"]) > 0
+                )
+                else None,
+                incremental_state,
+                self_attn_mask=self_attn_mask,
+                self_attn_padding_mask=self_attn_padding_mask,
+                need_attn=bool((idx == alignment_layer) or self.gather_attn_weight),
+                need_head_weights=bool((idx == alignment_layer) or self.gather_attn_weight),
+                pos_emb=positions
+            )
+            inner_states.append(x)
+            if layer_attn is not None and idx == alignment_layer:
+                attn = layer_attn.float().to(x)
+            if self.history is not None:
+                self.history.push(x)
+            if self.gather_attn_weight:
+                if avg_attn is None:
+                    avg_attn = layer_attn
+                else:
+                    avg_attn += layer_attn
+
+        if self.gather_attn_weight:
+            avg_attn = avg_attn / len(self.layers)
+            attn = avg_attn.mean(0).sum(-2)
+            attn = torch.reshape(attn, [attn.numel()])
+            attn = attn // 0.001
+            attn = attn.int().cpu()
+
+            if len(encoder_out["encoder_padding_mask"]) > 0:
+                mask = encoder_out["encoder_padding_mask"][0]
+                mask = torch.reshape(mask, [mask.numel()])
+            else:
+                mask = None
+
+            i = -1
+            for item in attn:
+                i += 1
+                if mask[i]:
+                    continue
+                idx = int(item) * 0.001
+                if idx not in self.attn_weights:
+                    self.attn_weights[idx] = 0
+                self.attn_weights[idx] += 1
+        elif attn is not None:
+            if alignment_heads is not None:
+                attn = attn[:alignment_heads]
+
+            # average probabilities over heads
+            attn = attn.mean(dim=0)
+
+        if self.history is not None:
+            x = self.history.pop()
+
+        if self.layer_norm is not None:
+            x = self.layer_norm(x)
+
+        # T x B x C -> B x T x C
+        x = x.transpose(0, 1)
+
+        if self.project_out_dim is not None:
+            x = self.project_out_dim(x)
+
+        return x, {"attn": [attn], "inner_states": inner_states, "mixup": mixup}
+
+    def output_layer(self, features):
+        """Project features to the vocabulary size."""
+        if self.adaptive_softmax is None:
+            # project back to size of vocabulary
+            return self.output_projection(features)
+        else:
+            return features
+
+    def max_positions(self):
+        """Maximum output length supported by the decoder."""
+        if self.embed_positions is None:
+            return self.max_target_positions
+        return min(self.max_target_positions, self.embed_positions.max_positions)
+
+    def buffered_future_mask(self, tensor):
+        dim = tensor.size(0)
+        # self._future_mask.device != tensor.device is not working in TorchScript. This is a workaround.
+        if (
+            self._future_mask.size(0) == 0
+            or (not self._future_mask.device == tensor.device)
+            or self._future_mask.size(0) < dim
+        ):
+            self._future_mask = torch.triu(
+                utils.fill_with_neg_inf(torch.zeros([dim, dim])), 1
+            )
+        self._future_mask = self._future_mask.to(tensor)
+        return self._future_mask[:dim, :dim]
+
+    def upgrade_state_dict_named(self, state_dict, name):
+        """Upgrade a (possibly old) state dict for new versions of fairseq."""
+        if isinstance(self.embed_positions, SinusoidalPositionalEmbedding):
+            weights_key = "{}.embed_positions.weights".format(name)
+            if weights_key in state_dict:
+                del state_dict[weights_key]
+            state_dict[
+                "{}.embed_positions._float_tensor".format(name)
+            ] = torch.FloatTensor(1)
+
+        if f"{name}.output_projection.weight" not in state_dict:
+            if self.share_input_output_embed:
+                embed_out_key = f"{name}.embed_tokens.weight"
+            else:
+                embed_out_key = f"{name}.embed_out"
+            if embed_out_key in state_dict:
+                state_dict[f"{name}.output_projection.weight"] = state_dict[
+                    embed_out_key
+                ]
+                if not self.share_input_output_embed:
+                    del state_dict[embed_out_key]
+
+        for i in range(self.num_layers):
+            # update layer norms
+            layer_norm_map = {
+                "0": "self_attn_layer_norm",
+                "1": "encoder_attn_layer_norm",
+                "2": "final_layer_norm",
+            }
+            for old, new in layer_norm_map.items():
+                for m in ("weight", "bias"):
+                    k = "{}.layers.{}.layer_norms.{}.{}".format(name, i, old, m)
+                    if k in state_dict:
+                        state_dict[
+                            "{}.layers.{}.{}.{}".format(name, i, new, m)
+                        ] = state_dict[k]
+                        del state_dict[k]
+
+        version_key = "{}.version".format(name)
+        if utils.item(state_dict.get(version_key, torch.Tensor([1]))[0]) <= 2:
+            # earlier checkpoints did not normalize after the stack of layers
+            self.layer_norm = None
+            self.normalize = False
+            state_dict[version_key] = torch.Tensor([1])
+
+        return state_dict
+
+
+def Embedding(num_embeddings, embedding_dim, padding_idx):
+    m = nn.Embedding(num_embeddings, embedding_dim, padding_idx=padding_idx)
+    nn.init.normal_(m.weight, mean=0, std=embedding_dim ** -0.5)
+    nn.init.constant_(m.weight[padding_idx], 0)
+    return m
+
+
+def Linear(in_features, out_features, bias=True):
+    m = nn.Linear(in_features, out_features, bias)
+    nn.init.xavier_uniform_(m.weight)
+    if bias:
+        nn.init.constant_(m.bias, 0.0)
+    return m
+
+
+@register_model_architecture("transformer_ctc", "transformer_ctc_tiny")
+def tiny_architecture(args):
+    args.encoder_embed_dim = getattr(args, "encoder_embed_dim", 64)
+    args.encoder_ffn_embed_dim = getattr(args, "encoder_ffn_embed_dim", 64)
+    args.encoder_layers = getattr(args, "encoder_layers", 2)
+    args.encoder_attention_heads = getattr(args, "encoder_attention_heads", 2)
+    args.decoder_layers = getattr(args, "decoder_layers", 2)
+    args.decoder_attention_heads = getattr(args, "decoder_attention_heads", 2)
+    return base_architecture(args)
+
+
+@register_model_architecture("transformer_ctc", "transformer_ctc")
+def base_architecture(args):
+    args.encoder_embed_path = getattr(args, "encoder_embed_path", None)
+    args.encoder_embed_dim = getattr(args, "encoder_embed_dim", 512)
+    args.encoder_ffn_embed_dim = getattr(args, "encoder_ffn_embed_dim", 2048)
+    args.encoder_layers = getattr(args, "encoder_layers", 6)
+    args.encoder_attention_heads = getattr(args, "encoder_attention_heads", 8)
+    args.encoder_normalize_before = getattr(args, "encoder_normalize_before", False)
+    args.encoder_learned_pos = getattr(args, "encoder_learned_pos", False)
+    args.decoder_embed_path = getattr(args, "decoder_embed_path", None)
+    args.decoder_embed_dim = getattr(args, "decoder_embed_dim", args.encoder_embed_dim)
+    args.decoder_ffn_embed_dim = getattr(
+        args, "decoder_ffn_embed_dim", args.encoder_ffn_embed_dim
+    )
+    args.decoder_layers = getattr(args, "decoder_layers", 6)
+    args.decoder_attention_heads = getattr(args, "decoder_attention_heads", 8)
+    args.decoder_normalize_before = getattr(args, "decoder_normalize_before", False)
+    args.decoder_learned_pos = getattr(args, "decoder_learned_pos", False)
+    args.attention_dropout = getattr(args, "attention_dropout", 0.0)
+    args.activation_dropout = getattr(args, "activation_dropout", 0.0)
+    args.activation_fn = getattr(args, "activation_fn", "relu")
+    args.dropout = getattr(args, "dropout", 0.1)
+    args.adaptive_softmax_cutoff = getattr(args, "adaptive_softmax_cutoff", None)
+    args.adaptive_softmax_dropout = getattr(args, "adaptive_softmax_dropout", 0)
+    args.tie_adaptive_weights = getattr(args, "tie_adaptive_weights", False)
+    args.tie_adaptive_proj = getattr(args, "tie_adaptive_proj", False)
+    args.adaptive_softmax_factor = getattr(args, "adaptive_softmax_factor", 4)
+
+    args.share_decoder_input_output_embed = getattr(
+        args, "share_decoder_input_output_embed", False
+    )
+    args.share_all_embeddings = getattr(args, "share_all_embeddings", False)
+    args.no_token_positional_embeddings = getattr(
+        args, "no_token_positional_embeddings", False
+    )
+    args.adaptive_input = getattr(args, "adaptive_input", False)
+    args.no_cross_attention = getattr(args, "no_cross_attention", False)
+    args.cross_self_attention = getattr(args, "cross_self_attention", False)
+
+    args.decoder_output_dim = getattr(
+        args, "decoder_output_dim", args.decoder_embed_dim
+    )
+    args.decoder_input_dim = getattr(args, "decoder_input_dim", args.decoder_embed_dim)
+
+    args.no_scale_embedding = getattr(args, "no_scale_embedding", False)
+    args.layernorm_embedding = getattr(args, "layernorm_embedding", False)
+    args.tie_adaptive_weights = getattr(args, "tie_adaptive_weights", False)
+    args.checkpoint_activations = getattr(args, "checkpoint_activations", False)
+    args.offload_activations = getattr(args, "offload_activations", False)
+    if args.offload_activations:
+        args.checkpoint_activations = True
+    args.encoder_layers_to_keep = getattr(args, "encoder_layers_to_keep", None)
+    args.decoder_layers_to_keep = getattr(args, "decoder_layers_to_keep", None)
+    args.encoder_layerdrop = getattr(args, "encoder_layerdrop", 0)
+    args.decoder_layerdrop = getattr(args, "decoder_layerdrop", 0)
+    args.quant_noise_pq = getattr(args, "quant_noise_pq", 0)
+    args.quant_noise_pq_block_size = getattr(args, "quant_noise_pq_block_size", 8)
+    args.quant_noise_scalar = getattr(args, "quant_noise_scalar", 0)
+
+    args.encoder_attention_type = getattr(args, "encoder_attention_type", "selfattn")
+    args.decoder_attention_type = getattr(args, "decoder_attention_type", "selfattn")
+
+    # settings for DLCL
+    args.use_enc_dlcl = getattr(args, "use_enc_dlcl", False)
+    args.use_dec_dlcl = getattr(args, "use_dec_dlcl", False)
+    args.init_value = getattr(args, 'init_value', 'avg')
+    args.weight_type = getattr(args, 'weight_type', 'scalar')
+    args.encoder_learnable = getattr(args, 'encoder_learnable', True)
+    args.decoder_learnable = getattr(args, 'decoder_learnable', True)
+    args.normalize_embed = getattr(args, 'normalize_embed', False)
+    args.history_dropout = getattr(args, 'history_dropout', 0.0)
+    args.history_window_size = getattr(args, 'history_window_size', -1)
+
+    # settings for RPR
+    args.max_encoder_relative_length = getattr(args, 'max_encoder_relative_length', -1)
+    args.max_decoder_relative_length = getattr(args, 'max_decoder_relative_length', -1)
+    args.k_only = getattr(args, 'k_only', True)
+
+    # CTC
+    args.ctc_layer = getattr(args, "ctc_layer", args.encoder_layers)
+    args.intermedia_ctc_layers = getattr(args, "intermedia_ctc_layers", None)
+    args.intermedia_adapter = getattr(args, "intermedia_adapter", None)
+    args.intermedia_drop_prob = getattr(args, "intermedia_drop_prob", 0)
+
+
+@register_model_architecture("transformer_ctc", "transformer_ctc_relative")
+def transformer_ctc_rpr(args):
+    args.max_encoder_relative_length = 20
+    args.max_decoder_relative_length = 20
+    args.k_only = True
+    base_architecture(args)
+
+
+@register_model_architecture("transformer_ctc", "transformer_ctc_iwslt_de_en")
+def transformer_ctc_iwslt_de_en(args):
+    args.encoder_embed_dim = getattr(args, "encoder_embed_dim", 512)
+    args.encoder_ffn_embed_dim = getattr(args, "encoder_ffn_embed_dim", 1024)
+    args.encoder_attention_heads = getattr(args, "encoder_attention_heads", 4)
+    args.encoder_layers = getattr(args, "encoder_layers", 6)
+    args.decoder_embed_dim = getattr(args, "decoder_embed_dim", 512)
+    args.decoder_ffn_embed_dim = getattr(args, "decoder_ffn_embed_dim", 1024)
+    args.decoder_attention_heads = getattr(args, "decoder_attention_heads", 4)
+    args.decoder_layers = getattr(args, "decoder_layers", 6)
+    base_architecture(args)
+
+
+@register_model_architecture("transformer_ctc", "transformer_ctc_wmt_en_de")
+def transformer_ctc_wmt_en_de(args):
+    base_architecture(args)
+
+
+# parameters used in the "Attention Is All You Need" paper (Vaswani et al., 2017)
+@register_model_architecture("transformer_ctc", "transformer_ctc_vaswani_wmt_en_de_big")
+def transformer_ctc_vaswani_wmt_en_de_big(args):
+    args.encoder_embed_dim = getattr(args, "encoder_embed_dim", 1024)
+    args.encoder_ffn_embed_dim = getattr(args, "encoder_ffn_embed_dim", 4096)
+    args.encoder_attention_heads = getattr(args, "encoder_attention_heads", 16)
+    args.encoder_normalize_before = getattr(args, "encoder_normalize_before", False)
+    args.decoder_embed_dim = getattr(args, "decoder_embed_dim", 1024)
+    args.decoder_ffn_embed_dim = getattr(args, "decoder_ffn_embed_dim", 4096)
+    args.decoder_attention_heads = getattr(args, "decoder_attention_heads", 16)
+    args.dropout = getattr(args, "dropout", 0.3)
+    base_architecture(args)
+
+
+@register_model_architecture("transformer_ctc", "transformer_ctc_vaswani_wmt_en_fr_big")
+def transformer_ctc_vaswani_wmt_en_fr_big(args):
+    args.dropout = getattr(args, "dropout", 0.1)
+    transformer_ctc_vaswani_wmt_en_de_big(args)
+
+
+@register_model_architecture("transformer_ctc", "transformer_ctc_wmt_en_de_big")
+def transformer_ctc_wmt_en_de_big(args):
+    args.attention_dropout = getattr(args, "attention_dropout", 0.1)
+    transformer_ctc_vaswani_wmt_en_de_big(args)
+
+
+# default parameters used in tensor2tensor implementation
+@register_model_architecture("transformer_ctc", "transformer_ctc_wmt_en_de_big_t2t")
+def transformer_ctc_wmt_en_de_big_t2t(args):
+    args.encoder_normalize_before = getattr(args, "encoder_normalize_before", True)
+    args.decoder_normalize_before = getattr(args, "decoder_normalize_before", True)
+    args.attention_dropout = getattr(args, "attention_dropout", 0.1)
+    args.activation_dropout = getattr(args, "activation_dropout", 0.1)
+    transformer_ctc_vaswani_wmt_en_de_big(args)

fairseq/modules/speech_to_text/adapter.py

@@ -57,7 +57,7 @@ class CTCCompressStrategy:
 
 
 class Adapter(nn.Module):
-    def __init__(self, dim, adapter_type, dictionary, embed_tokens=None, strategy=None):
+    def __init__(self, dim, adapter_type, dictionary_size, embed_tokens=None, strategy=None):
         super().__init__()
 
         dim = dim
@@ -71,11 +71,14 @@ class Adapter(nn.Module):
             )
 
         if self.adapter_type in ["context", "league", "gated_league", "gated_league2", "inter_league"]:
-            if embed_tokens is None:
-                num_embeddings = len(dictionary)
-                self.embed_adapter = nn.Linear(num_embeddings, dim) # Embedding(num_embeddings, dim, dictionary.pad())
-            else:
-                self.embed_adapter = embed_tokens
+            self.embed_adapter = nn.Linear(dim, dictionary_size, bias=False)    # reverse for initialization
+            if embed_tokens is not None:
+                self.embed_adapter.weight = embed_tokens.weight
+            # if embed_tokens is None:
+            #     num_embeddings = len(dictionary)
+            #     self.embed_adapter = nn.Linear(num_embeddings, dim) # Embedding(num_embeddings, dim, dictionary.pad())
+            # else:
+            #     self.embed_adapter = embed_tokens
 
         if self.adapter_type == "gated_league":
             self.gate_linear = nn.Linear(2 * dim, dim)
@@ -95,45 +98,40 @@ class Adapter(nn.Module):
     def forward(self, x, padding):
 
         representation, distribution = x
+        distribution = distribution.type_as(representation)
         seq_len, bsz, dim = representation.size()
         org_distribution = distribution
+        distribution = distribution.view(-1, distribution.size(-1))
         lengths = (~padding).long().sum(-1)
 
         if self.adapter_type == "linear":
             out = self.linear_adapter(representation)
 
         elif self.adapter_type == "context":
-            distribution = distribution.view(-1, distribution.size(-1))
-            out = torch.mm(
-                distribution, self.embed_adapter.weight.float()
-            ).view(seq_len, bsz, -1).type_as(representation)
+            out = torch.mm(distribution, self.embed_adapter.weight.t()).view(seq_len, bsz, -1)
 
         elif self.adapter_type == "league":
             linear_out = self.linear_adapter(representation)
             if self.distribution_cutoff is not None:
-                cutoff = min(int(self.distribution_cutoff), distribution.size(-1) - 1)
-                threshold = distribution.sort(dim=-1, descending=True)[0][:, :, cutoff:cutoff+1]
-                distribution = torch.where(distribution > threshold, distribution, torch.zeros_like(distribution))
+                cutoff = min(int(self.distribution_cutoff), org_distribution.size(-1) - 1)
+                threshold = org_distribution.sort(dim=-1, descending=True)[0][:, :, cutoff:cutoff+1]
+                distribution = torch.where(
+                    org_distribution > threshold, org_distribution, torch.zeros_like(org_distribution)
+                )
                 distribution = distribution.view(-1, distribution.size(-1))
-            soft_out = torch.mm(
-                distribution, self.embed_adapter.weight.float()
-            ).view(seq_len, bsz, -1).type_as(representation)
+
+            soft_out = torch.mm(distribution, self.embed_adapter.weight).view(seq_len, bsz, -1)
             out = linear_out + soft_out
 
         elif self.adapter_type == "gated_league":
             linear_out = self.linear_adapter(representation)
-            distribution = distribution.view(-1, distribution.size(-1))
-            soft_out = torch.mm(
-                distribution, self.embed_adapter.weight.float()
-            ).view(seq_len, bsz, -1).type_as(representation)
+            soft_out = torch.mm(distribution, self.embed_adapter.weight.t()).view(seq_len, bsz, -1)
+
             coef = (self.gate_linear(torch.cat([linear_out, soft_out], dim=-1))).sigmoid()
             out = coef * linear_out + (1 - coef) * soft_out
 
         elif self.adapter_type == "inter_league":
-            distribution = distribution.view(-1, distribution.size(-1))
-            soft_out = torch.mm(
-                distribution, self.embed_adapter.weight.float()
-            ).view(seq_len, bsz, -1).type_as(representation)
+            soft_out = torch.mm(distribution, self.embed_adapter.weight.t()).view(seq_len, bsz, -1)
             out = representation + soft_out
 
         elif self.adapter_type == "none":

fairseq/sequence_generator.py

@@ -197,6 +197,12 @@ class SequenceGenerator(nn.Module):
         )
         net_input = sample["net_input"]
 
+        if "transcript" in sample:
+            text_src_tokens = sample["transcript"]["tokens"]
+            text_src_lengths = sample["transcript"]["lengths"]
+            net_input["text_src_tokens"] = text_src_tokens
+            net_input["text_src_lengths"] = text_src_lengths
+
         if "src_tokens" in net_input:
             src_tokens = net_input["src_tokens"]
             # length of the source text being the character length except EndOfSentence and pad