| | |
|---|
| | | ) |
|---|
| | | |
|---|
| | | |
|---|
| | | |
|---|
| | | def sense_voice_decode_forward( |
|---|
| | | self, |
|---|
| | | x: torch.Tensor, |
|---|
| | | xa: torch.Tensor, |
|---|
| | | kv_cache: Optional[dict] = None, |
|---|
| | | **kwargs, |
|---|
| | | self, |
|---|
| | | x: torch.Tensor, |
|---|
| | | xa: torch.Tensor, |
|---|
| | | kv_cache: Optional[dict] = None, |
|---|
| | | **kwargs, |
|---|
| | | ): |
|---|
| | | """Forward decoder. |
|---|
| | | """Forward decoder. |
|---|
| | | |
|---|
| | | Args: |
|---|
| | | hs_pad: encoded memory, float32 (batch, maxlen_in, feat) |
|---|
| | | hlens: (batch) |
|---|
| | | ys_in_pad: |
|---|
| | | input token ids, int64 (batch, maxlen_out) |
|---|
| | | if input_layer == "embed" |
|---|
| | | input tensor (batch, maxlen_out, #mels) in the other cases |
|---|
| | | ys_in_lens: (batch) |
|---|
| | | Returns: |
|---|
| | | (tuple): tuple containing: |
|---|
| | | Args: |
|---|
| | | hs_pad: encoded memory, float32 (batch, maxlen_in, feat) |
|---|
| | | hlens: (batch) |
|---|
| | | ys_in_pad: |
|---|
| | | input token ids, int64 (batch, maxlen_out) |
|---|
| | | if input_layer == "embed" |
|---|
| | | input tensor (batch, maxlen_out, #mels) in the other cases |
|---|
| | | ys_in_lens: (batch) |
|---|
| | | Returns: |
|---|
| | | (tuple): tuple containing: |
|---|
| | | |
|---|
| | | x: decoded token score before softmax (batch, maxlen_out, token) |
|---|
| | | if use_output_layer is True, |
|---|
| | | olens: (batch, ) |
|---|
| | | """ |
|---|
| | | # import pdb;pdb.set_trace() |
|---|
| | | use_padmask = self.use_padmask |
|---|
| | | hlens = kwargs.get("hlens", None) |
|---|
| | | |
|---|
| | | ys_in_lens = kwargs.get("ys_in_lens", None) |
|---|
| | | |
|---|
| | | offset = next(iter(kv_cache.values())).shape[1] if kv_cache else 0 |
|---|
| | | tgt, memory = x, xa |
|---|
| | | tgt[tgt == -1] = 0 |
|---|
| | | tgt = ( |
|---|
| | | self.token_embedding(tgt) |
|---|
| | | + self.positional_embedding[offset: offset + tgt.size(1)] |
|---|
| | | ) |
|---|
| | | # tgt = self.dropout(tgt) |
|---|
| | | |
|---|
| | | x = tgt.to(memory.dtype) |
|---|
| | | |
|---|
| | | if use_padmask and hlens is not None: |
|---|
| | | memory_mask = (~make_pad_mask(hlens)[:, None, :]).to(memory.device) |
|---|
| | | else: |
|---|
| | | memory_mask = None |
|---|
| | | |
|---|
| | | for layer, block in enumerate(self.blocks): |
|---|
| | | x = block(x, memory, mask=self.mask, memory_mask=memory_mask, is_pad_mask=False, is_pad_memory_mask=True) |
|---|
| | | |
|---|
| | | x = self.ln(x) |
|---|
| | | x = ( |
|---|
| | | x @ torch.transpose(self.token_embedding.weight.to(x.dtype), 0, 1) |
|---|
| | | ).float() |
|---|
| | | |
|---|
| | | return x |
|---|
| | | x: decoded token score before softmax (batch, maxlen_out, token) |
|---|
| | | if use_output_layer is True, |
|---|
| | | olens: (batch, ) |
|---|
| | | """ |
|---|
| | | # import pdb;pdb.set_trace() |
|---|
| | | use_padmask = self.use_padmask |
|---|
| | | hlens = kwargs.get("hlens", None) |
|---|
| | | |
|---|
| | | ys_in_lens = kwargs.get("ys_in_lens", None) |
|---|
| | | |
|---|
| | | offset = next(iter(kv_cache.values())).shape[1] if kv_cache else 0 |
|---|
| | | tgt, memory = x, xa |
|---|
| | | tgt[tgt == -1] = 0 |
|---|
| | | tgt = self.token_embedding(tgt) + self.positional_embedding[offset : offset + tgt.size(1)] |
|---|
| | | # tgt = self.dropout(tgt) |
|---|
| | | |
|---|
| | | x = tgt.to(memory.dtype) |
|---|
| | | |
|---|
| | | if use_padmask and hlens is not None: |
|---|
| | | memory_mask = (~make_pad_mask(hlens)[:, None, :]).to(memory.device) |
|---|
| | | else: |
|---|
| | | memory_mask = None |
|---|
| | | |
|---|
| | | for layer, block in enumerate(self.blocks): |
|---|
| | | x = block( |
|---|
| | | x, |
|---|
| | | memory, |
|---|
| | | mask=self.mask, |
|---|
| | | memory_mask=memory_mask, |
|---|
| | | is_pad_mask=False, |
|---|
| | | is_pad_memory_mask=True, |
|---|
| | | ) |
|---|
| | | |
|---|
| | | x = self.ln(x) |
|---|
| | | x = (x @ torch.transpose(self.token_embedding.weight.to(x.dtype), 0, 1)).float() |
|---|
| | | |
|---|
| | | return x |
|---|
| | | |
|---|
| | | |
|---|
| | | class MultiHeadAttention(nn.Module): |
|---|
| | | def __init__(self, n_state: int, n_head: int): |
|---|
| | | super().__init__() |
|---|
| | | self.n_head = n_head |
|---|
| | | self.query = Linear(n_state, n_state) |
|---|
| | | self.key = Linear(n_state, n_state, bias=False) |
|---|
| | | self.value = Linear(n_state, n_state) |
|---|
| | | self.out = Linear(n_state, n_state) |
|---|
| | | |
|---|
| | | def forward( |
|---|
| | | self, |
|---|
| | | x: Tensor, |
|---|
| | | xa: Optional[Tensor] = None, |
|---|
| | | mask: Optional[Tensor] = None, |
|---|
| | | kv_cache: Optional[dict] = None, |
|---|
| | | **kwargs, |
|---|
| | | ): |
|---|
| | | is_pad_mask = kwargs.get("is_pad_mask", False) |
|---|
| | | |
|---|
| | | q = self.query(x) |
|---|
| | | |
|---|
| | | if kv_cache is None or xa is None or self.key not in kv_cache: |
|---|
| | | # hooks, if installed (i.e. kv_cache is not None), will prepend the cached kv tensors; |
|---|
| | | # otherwise, perform key/value projections for self- or cross-attention as usual. |
|---|
| | | k = self.key(x if xa is None else xa) |
|---|
| | | v = self.value(x if xa is None else xa) |
|---|
| | | else: |
|---|
| | | # for cross-attention, calculate keys and values once and reuse in subsequent calls. |
|---|
| | | k = kv_cache[self.key] |
|---|
| | | v = kv_cache[self.value] |
|---|
| | | |
|---|
| | | wv, qk = self.qkv_attention(q, k, v, mask, is_pad_mask=is_pad_mask) |
|---|
| | | return self.out(wv), qk |
|---|
| | | |
|---|
| | | def qkv_attention( |
|---|
| | | self, q: Tensor, k: Tensor, v: Tensor, mask: Optional[Tensor] = None, **kwargs, |
|---|
| | | ): |
|---|
| | | is_pad_mask = kwargs.get("is_pad_mask", False) |
|---|
| | | n_batch, n_ctx, n_state = q.shape |
|---|
| | | scale = (n_state // self.n_head) ** -0.25 |
|---|
| | | q = q.view(*q.shape[:2], self.n_head, -1).permute(0, 2, 1, 3) * scale |
|---|
| | | k = k.view(*k.shape[:2], self.n_head, -1).permute(0, 2, 3, 1) * scale |
|---|
| | | v = v.view(*v.shape[:2], self.n_head, -1).permute(0, 2, 1, 3) |
|---|
| | | |
|---|
| | | qk = q @ k |
|---|
| | | if mask is not None: |
|---|
| | | if not is_pad_mask: |
|---|
| | | qk = qk + mask[:n_ctx, :n_ctx] |
|---|
| | | else: |
|---|
| | | mask = mask.unsqueeze(1).eq(0) # (batch, 1, *, time2) |
|---|
| | | min_value = float( |
|---|
| | | np.finfo(torch.tensor(0, dtype=qk.dtype).numpy().dtype).min |
|---|
| | | ) |
|---|
| | | qk = qk.masked_fill(mask, min_value) |
|---|
| | | |
|---|
| | | qk = qk.float() |
|---|
| | | |
|---|
| | | w = F.softmax(qk, dim=-1).to(q.dtype) |
|---|
| | | if mask is not None and is_pad_mask: |
|---|
| | | w = w.masked_fill(mask, 0.0) |
|---|
| | | return (w @ v).permute(0, 2, 1, 3).flatten(start_dim=2), qk.detach() |
|---|
| | | def __init__(self, n_state: int, n_head: int): |
|---|
| | | super().__init__() |
|---|
| | | self.n_head = n_head |
|---|
| | | self.query = Linear(n_state, n_state) |
|---|
| | | self.key = Linear(n_state, n_state, bias=False) |
|---|
| | | self.value = Linear(n_state, n_state) |
|---|
| | | self.out = Linear(n_state, n_state) |
|---|
| | | |
|---|
| | | def forward( |
|---|
| | | self, |
|---|
| | | x: Tensor, |
|---|
| | | xa: Optional[Tensor] = None, |
|---|
| | | mask: Optional[Tensor] = None, |
|---|
| | | kv_cache: Optional[dict] = None, |
|---|
| | | **kwargs, |
|---|
| | | ): |
|---|
| | | is_pad_mask = kwargs.get("is_pad_mask", False) |
|---|
| | | |
|---|
| | | q = self.query(x) |
|---|
| | | |
|---|
| | | if kv_cache is None or xa is None or self.key not in kv_cache: |
|---|
| | | # hooks, if installed (i.e. kv_cache is not None), will prepend the cached kv tensors; |
|---|
| | | # otherwise, perform key/value projections for self- or cross-attention as usual. |
|---|
| | | k = self.key(x if xa is None else xa) |
|---|
| | | v = self.value(x if xa is None else xa) |
|---|
| | | else: |
|---|
| | | # for cross-attention, calculate keys and values once and reuse in subsequent calls. |
|---|
| | | k = kv_cache[self.key] |
|---|
| | | v = kv_cache[self.value] |
|---|
| | | |
|---|
| | | wv, qk = self.qkv_attention(q, k, v, mask, is_pad_mask=is_pad_mask) |
|---|
| | | return self.out(wv), qk |
|---|
| | | |
|---|
| | | def qkv_attention( |
|---|
| | | self, |
|---|
| | | q: Tensor, |
|---|
| | | k: Tensor, |
|---|
| | | v: Tensor, |
|---|
| | | mask: Optional[Tensor] = None, |
|---|
| | | **kwargs, |
|---|
| | | ): |
|---|
| | | is_pad_mask = kwargs.get("is_pad_mask", False) |
|---|
| | | n_batch, n_ctx, n_state = q.shape |
|---|
| | | scale = (n_state // self.n_head) ** -0.25 |
|---|
| | | q = q.view(*q.shape[:2], self.n_head, -1).permute(0, 2, 1, 3) * scale |
|---|
| | | k = k.view(*k.shape[:2], self.n_head, -1).permute(0, 2, 3, 1) * scale |
|---|
| | | v = v.view(*v.shape[:2], self.n_head, -1).permute(0, 2, 1, 3) |
|---|
| | | |
|---|
| | | qk = q @ k |
|---|
| | | if mask is not None: |
|---|
| | | if not is_pad_mask: |
|---|
| | | qk = qk + mask[:n_ctx, :n_ctx] |
|---|
| | | else: |
|---|
| | | mask = mask.unsqueeze(1).eq(0) # (batch, 1, *, time2) |
|---|
| | | min_value = float(np.finfo(torch.tensor(0, dtype=qk.dtype).numpy().dtype).min) |
|---|
| | | qk = qk.masked_fill(mask, min_value) |
|---|
| | | |
|---|
| | | qk = qk.float() |
|---|
| | | |
|---|
| | | w = F.softmax(qk, dim=-1).to(q.dtype) |
|---|
| | | if mask is not None and is_pad_mask: |
|---|
| | | w = w.masked_fill(mask, 0.0) |
|---|
| | | return (w @ v).permute(0, 2, 1, 3).flatten(start_dim=2), qk.detach() |
|---|
| | | |
|---|
| | | |
|---|
| | | from funasr.models.sense_voice.rwkv_v6 import RWKVLayer |
|---|
| | | from omegaconf import OmegaConf |
|---|
| | | |
|---|
| | | |
|---|
| | | class ResidualAttentionBlockRWKV(nn.Module): |
|---|
| | | def __init__(self, n_state: int, n_head: int, cross_attention: bool = False, layer_id=0, **kwargs): |
|---|
| | | super().__init__() |
|---|
| | | |
|---|
| | | rwkv_cfg = kwargs.get("rwkv_cfg", {}) |
|---|
| | | args = OmegaConf.create(rwkv_cfg) |
|---|
| | | self.attn = RWKVLayer(args=args, layer_id=layer_id) |
|---|
| | | if args.get("datatype", "bf16") == "bf16": |
|---|
| | | self.attn.to(torch.bfloat16) |
|---|
| | | |
|---|
| | | self.ln0 = None |
|---|
| | | if layer_id == 0 and not args.get("ln0", True): |
|---|
| | | self.ln0 = LayerNorm(args.n_embd) |
|---|
| | | if args.get("init_rwkv", True): |
|---|
| | | print("init_rwkv") |
|---|
| | | layer_id = 0 |
|---|
| | | scale = ((1 + layer_id) / args.get("n_layer")) ** 0.7 |
|---|
| | | nn.init.constant_(self.ln0.weight, scale) |
|---|
| | | self.layer_id = layer_id |
|---|
| | | self.args = args |
|---|
| | | |
|---|
| | | self.ln1 = None |
|---|
| | | if not args.get("ln1", True): |
|---|
| | | self.ln1 = LayerNorm(args.n_embd) |
|---|
| | | # init |
|---|
| | | if args.get("init_rwkv", True): |
|---|
| | | print("init_rwkv") |
|---|
| | | scale = ((1 + layer_id) / args.get("n_layer")) ** 0.7 |
|---|
| | | nn.init.constant_(self.ln1.weight, scale) |
|---|
| | | |
|---|
| | | self.cross_attn = ( |
|---|
| | | MultiHeadAttention(n_state, n_head) if cross_attention else None |
|---|
| | | ) |
|---|
| | | self.cross_attn_ln = LayerNorm(n_state) if cross_attention else None |
|---|
| | | |
|---|
| | | n_mlp = n_state * 4 |
|---|
| | | self.mlp = nn.Sequential( |
|---|
| | | Linear(n_state, n_mlp), nn.GELU(), Linear(n_mlp, n_state) |
|---|
| | | ) |
|---|
| | | self.mlp_ln = LayerNorm(n_state) |
|---|
| | | |
|---|
| | | def forward( |
|---|
| | | self, |
|---|
| | | x: Tensor, |
|---|
| | | xa: Optional[Tensor] = None, |
|---|
| | | mask: Optional[Tensor] = None, |
|---|
| | | kv_cache: Optional[dict] = None, |
|---|
| | | **kwargs, |
|---|
| | | ): |
|---|
| | | is_pad_mask = kwargs.get("is_pad_mask", False) |
|---|
| | | is_pad_memory_mask = kwargs.get("is_pad_memory_mask", False) |
|---|
| | | |
|---|
| | | if self.layer_id == 0 and self.ln0 is not None: |
|---|
| | | x = self.ln0(x) |
|---|
| | | |
|---|
| | | if self.ln1 is None: |
|---|
| | | x = x + self.attn(x, mask=mask, kv_cache=kv_cache, is_pad_mask=is_pad_mask)[0] |
|---|
| | | else: |
|---|
| | | x = x + self.attn(self.ln1(x), mask=mask, kv_cache=kv_cache, is_pad_mask=is_pad_mask)[0] |
|---|
| | | |
|---|
| | | if self.cross_attn: |
|---|
| | | x = x + self.cross_attn(self.cross_attn_ln(x), xa, kv_cache=kv_cache, is_pad_mask=is_pad_memory_mask)[0] |
|---|
| | | x = x + self.mlp(self.mlp_ln(x)) |
|---|
| | | |
|---|
| | | return x |
|---|
| | | def __init__( |
|---|
| | | self, n_state: int, n_head: int, cross_attention: bool = False, layer_id=0, **kwargs |
|---|
| | | ): |
|---|
| | | super().__init__() |
|---|
| | | |
|---|
| | | rwkv_cfg = kwargs.get("rwkv_cfg", {}) |
|---|
| | | args = OmegaConf.create(rwkv_cfg) |
|---|
| | | if args.get("version", "v4") == "v4": |
|---|
| | | from funasr.models.sense_voice.rwkv_v4 import RWKVLayer |
|---|
| | | from funasr.models.sense_voice.rwkv_v4 import RWKV_TimeMix as RWKV_Tmix |
|---|
| | | elif args.get("version", "v5") == "v5": |
|---|
| | | from funasr.models.sense_voice.rwkv_v5 import RWKVLayer |
|---|
| | | from funasr.models.sense_voice.rwkv_v5 import RWKV_Tmix_x052 as RWKV_Tmix |
|---|
| | | else: |
|---|
| | | from funasr.models.sense_voice.rwkv_v6 import RWKVLayer |
|---|
| | | from funasr.models.sense_voice.rwkv_v6 import RWKV_Tmix_x060 as RWKV_Tmix |
|---|
| | | # self.att = RWKVLayer(args=args, layer_id=layer_id) |
|---|
| | | self.att = RWKV_Tmix(args, layer_id=layer_id) |
|---|
| | | |
|---|
| | | if args.get("init_rwkv", True): |
|---|
| | | print("init_rwkv") |
|---|
| | | nn.init.orthogonal_(self.att.receptance.weight, gain=1) |
|---|
| | | nn.init.orthogonal_(self.att.key.weight, gain=0.1) |
|---|
| | | nn.init.orthogonal_(self.att.value.weight, gain=1) |
|---|
| | | nn.init.orthogonal_(self.att.gate.weight, gain=0.1) |
|---|
| | | nn.init.zeros_(self.att.output.weight) |
|---|
| | | |
|---|
| | | self.ln0 = None |
|---|
| | | if layer_id == 0 and not args.get("ln0", True): |
|---|
| | | self.ln0 = LayerNorm(args.n_embd) |
|---|
| | | if args.get("init_rwkv", True): |
|---|
| | | print("init_rwkv") |
|---|
| | | layer_id = 0 |
|---|
| | | scale = ((1 + layer_id) / args.get("n_layer")) ** 0.7 |
|---|
| | | nn.init.constant_(self.ln0.weight, scale) |
|---|
| | | |
|---|
| | | self.layer_id = layer_id |
|---|
| | | self.args = args |
|---|
| | | |
|---|
| | | self.ln1 = None |
|---|
| | | if not args.get("ln1", True): |
|---|
| | | self.ln1 = LayerNorm(args.n_embd) |
|---|
| | | # init |
|---|
| | | if args.get("init_rwkv", True): |
|---|
| | | print("init_rwkv") |
|---|
| | | scale = ((1 + layer_id) / args.get("n_layer")) ** 0.7 |
|---|
| | | nn.init.constant_(self.ln1.weight, scale) |
|---|
| | | |
|---|
| | | if args.get("datatype", "bf16") == "bf16": |
|---|
| | | self.att.to(torch.bfloat16) |
|---|
| | | # if self.ln1 is not None: |
|---|
| | | # self.ln1.to(torch.bfloat16) |
|---|
| | | |
|---|
| | | self.cross_attn = MultiHeadAttention(n_state, n_head) if cross_attention else None |
|---|
| | | self.cross_attn_ln = LayerNorm(n_state) if cross_attention else None |
|---|
| | | |
|---|
| | | n_mlp = n_state * 4 |
|---|
| | | self.mlp = nn.Sequential(Linear(n_state, n_mlp), nn.GELU(), Linear(n_mlp, n_state)) |
|---|
| | | self.mlp_ln = LayerNorm(n_state) |
|---|
| | | |
|---|
| | | def forward( |
|---|
| | | self, |
|---|
| | | x: Tensor, |
|---|
| | | xa: Optional[Tensor] = None, |
|---|
| | | mask: Optional[Tensor] = None, |
|---|
| | | kv_cache: Optional[dict] = None, |
|---|
| | | **kwargs, |
|---|
| | | ): |
|---|
| | | is_pad_mask = kwargs.get("is_pad_mask", False) |
|---|
| | | is_pad_memory_mask = kwargs.get("is_pad_memory_mask", False) |
|---|
| | | |
|---|
| | | if self.layer_id == 0 and self.ln0 is not None: |
|---|
| | | x = self.ln0(x) |
|---|
| | | |
|---|
| | | if self.args.get("datatype", "bf16") == "bf16": |
|---|
| | | x = x.bfloat16() |
|---|
| | | if self.ln1 is None: |
|---|
| | | x = x + self.att(x, mask=mask, kv_cache=kv_cache, is_pad_mask=is_pad_mask)[0] |
|---|
| | | else: |
|---|
| | | x = x + self.att(self.ln1(x), mask=mask, kv_cache=kv_cache, is_pad_mask=is_pad_mask)[0] |
|---|
| | | if self.args.get("datatype", "bf16") == "bf16": |
|---|
| | | x = x.to(torch.float32) |
|---|
| | | |
|---|
| | | if self.cross_attn: |
|---|
| | | x = ( |
|---|
| | | x |
|---|
| | | + self.cross_attn( |
|---|
| | | self.cross_attn_ln(x), xa, kv_cache=kv_cache, is_pad_mask=is_pad_memory_mask |
|---|
| | | )[0] |
|---|
| | | ) |
|---|
| | | x = x + self.mlp(self.mlp_ln(x)) |
|---|
| | | |
|---|
| | | return x |
|---|
| | | |
|---|
| | | |
|---|
| | | @tables.register("decoder_classes", "SenseVoiceDecoder") |
|---|
| | | class SenseVoiceDecoder(nn.Module): |
|---|
| | | def __init__( |
|---|
| | | self, n_vocab: int, n_ctx: int, n_state: int, n_head: int, n_layer: int, **kwargs |
|---|
| | | ): |
|---|
| | | super().__init__() |
|---|
| | | |
|---|
| | | self.token_embedding = nn.Embedding(n_vocab, n_state) |
|---|
| | | self.positional_embedding = nn.Parameter(torch.empty(n_ctx, n_state)) |
|---|
| | | def __init__(self, n_vocab: int, n_ctx: int, n_state: int, n_head: int, n_layer: int, **kwargs): |
|---|
| | | super().__init__() |
|---|
| | | |
|---|
| | | self.token_embedding = nn.Embedding(n_vocab, n_state) |
|---|
| | | self.positional_embedding = nn.Parameter(torch.empty(n_ctx, n_state)) |
|---|
| | | |
|---|
| | | self.blocks = nn.ModuleList( |
|---|
| | | [ |
|---|
| | | ResidualAttentionBlockRWKV(n_state, n_head, cross_attention=True, layer_id=i, **kwargs) |
|---|
| | | for i in range(n_layer) |
|---|
| | | ] |
|---|
| | | ) |
|---|
| | | self.ln = LayerNorm(n_state) |
|---|
| | | |
|---|
| | | mask = torch.empty(n_ctx, n_ctx).fill_(-np.inf).triu_(1) |
|---|
| | | self.register_buffer("mask", mask, persistent=False) |
|---|
| | | |
|---|
| | | self.use_padmask = kwargs.get("use_padmask", True) |
|---|
| | | self.blocks = nn.ModuleList( |
|---|
| | | [ |
|---|
| | | ResidualAttentionBlockRWKV( |
|---|
| | | n_state, n_head, cross_attention=True, layer_id=i, **kwargs |
|---|
| | | ) |
|---|
| | | for i in range(n_layer) |
|---|
| | | ] |
|---|
| | | ) |
|---|
| | | self.ln = LayerNorm(n_state) |
|---|
| | | |
|---|
| | | mask = torch.empty(n_ctx, n_ctx).fill_(-np.inf).triu_(1) |
|---|
| | | self.register_buffer("mask", mask, persistent=False) |
|---|
| | | |
|---|
| | | |
|---|
| | | def forward( |
|---|
| | | self, |
|---|
| | | x: torch.Tensor, |
|---|
| | | xa: torch.Tensor, |
|---|
| | | kv_cache: Optional[dict] = None, |
|---|
| | | **kwargs, |
|---|
| | | ): |
|---|
| | | """Forward decoder. |
|---|
| | | |
|---|
| | | Args: |
|---|
| | | hs_pad: encoded memory, float32 (batch, maxlen_in, feat) |
|---|
| | | hlens: (batch) |
|---|
| | | ys_in_pad: |
|---|
| | | input token ids, int64 (batch, maxlen_out) |
|---|
| | | if input_layer == "embed" |
|---|
| | | input tensor (batch, maxlen_out, #mels) in the other cases |
|---|
| | | ys_in_lens: (batch) |
|---|
| | | Returns: |
|---|
| | | (tuple): tuple containing: |
|---|
| | | |
|---|
| | | x: decoded token score before softmax (batch, maxlen_out, token) |
|---|
| | | if use_output_layer is True, |
|---|
| | | olens: (batch, ) |
|---|
| | | """ |
|---|
| | | # import pdb;pdb.set_trace() |
|---|
| | | use_padmask = self.use_padmask |
|---|
| | | hlens = kwargs.get("hlens", None) |
|---|
| | | |
|---|
| | | ys_in_lens = kwargs.get("ys_in_lens", None) |
|---|
| | | |
|---|
| | | offset = next(iter(kv_cache.values())).shape[1] if kv_cache else 0 |
|---|
| | | tgt, memory = x, xa |
|---|
| | | tgt[tgt == -1] = 0 |
|---|
| | | tgt = ( |
|---|
| | | self.token_embedding(tgt) |
|---|
| | | + self.positional_embedding[offset: offset + tgt.size(1)] |
|---|
| | | ) |
|---|
| | | # tgt = self.dropout(tgt) |
|---|
| | | |
|---|
| | | x = tgt.to(memory.dtype) |
|---|
| | | |
|---|
| | | if use_padmask and hlens is not None: |
|---|
| | | memory_mask = (~make_pad_mask(hlens)[:, None, :]).to(memory.device) |
|---|
| | | else: |
|---|
| | | memory_mask = None |
|---|
| | | |
|---|
| | | for layer, block in enumerate(self.blocks): |
|---|
| | | x = block(x, memory, mask=self.mask, memory_mask=memory_mask, is_pad_mask=False, is_pad_memory_mask=True) |
|---|
| | | |
|---|
| | | x = self.ln(x) |
|---|
| | | x = ( |
|---|
| | | x @ torch.transpose(self.token_embedding.weight.to(x.dtype), 0, 1) |
|---|
| | | ).float() |
|---|
| | | |
|---|
| | | return x |
|---|
| | | self.use_padmask = kwargs.get("use_padmask", True) |
|---|
| | | |
|---|
| | | def forward( |
|---|
| | | self, |
|---|
| | | x: torch.Tensor, |
|---|
| | | xa: torch.Tensor, |
|---|
| | | kv_cache: Optional[dict] = None, |
|---|
| | | **kwargs, |
|---|
| | | ): |
|---|
| | | """Forward decoder. |
|---|
| | | |
|---|
| | | Args: |
|---|
| | | hs_pad: encoded memory, float32 (batch, maxlen_in, feat) |
|---|
| | | hlens: (batch) |
|---|
| | | ys_in_pad: |
|---|
| | | input token ids, int64 (batch, maxlen_out) |
|---|
| | | if input_layer == "embed" |
|---|
| | | input tensor (batch, maxlen_out, #mels) in the other cases |
|---|
| | | ys_in_lens: (batch) |
|---|
| | | Returns: |
|---|
| | | (tuple): tuple containing: |
|---|
| | | |
|---|
| | | x: decoded token score before softmax (batch, maxlen_out, token) |
|---|
| | | if use_output_layer is True, |
|---|
| | | olens: (batch, ) |
|---|
| | | """ |
|---|
| | | # import pdb;pdb.set_trace() |
|---|
| | | use_padmask = self.use_padmask |
|---|
| | | hlens = kwargs.get("hlens", None) |
|---|
| | | |
|---|
| | | ys_in_lens = kwargs.get("ys_in_lens", None) |
|---|
| | | |
|---|
| | | offset = next(iter(kv_cache.values())).shape[1] if kv_cache else 0 |
|---|
| | | tgt, memory = x, xa |
|---|
| | | tgt[tgt == -1] = 0 |
|---|
| | | tgt = self.token_embedding(tgt) + self.positional_embedding[offset : offset + tgt.size(1)] |
|---|
| | | # tgt = self.dropout(tgt) |
|---|
| | | |
|---|
| | | x = tgt.to(memory.dtype) |
|---|
| | | |
|---|
| | | if use_padmask and hlens is not None: |
|---|
| | | memory_mask = (~make_pad_mask(hlens)[:, None, :]).to(memory.device) |
|---|
| | | else: |
|---|
| | | memory_mask = None |
|---|
| | | |
|---|
| | | for layer, block in enumerate(self.blocks): |
|---|
| | | x = block( |
|---|
| | | x, |
|---|
| | | memory, |
|---|
| | | mask=self.mask, |
|---|
| | | memory_mask=memory_mask, |
|---|
| | | is_pad_mask=False, |
|---|
| | | is_pad_memory_mask=True, |
|---|
| | | ) |
|---|
| | | |
|---|
| | | x = self.ln(x) |
|---|
| | | x = (x @ torch.transpose(self.token_embedding.weight.to(x.dtype), 0, 1)).float() |
|---|
| | | |
|---|
| | | return x |
|---|
