mirror of
https://github.com/modelscope/FunASR
synced 2025-09-15 14:48:36 +08:00
1843 lines
63 KiB
Python
1843 lines
63 KiB
Python
import time
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import torch
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from torch import Tensor, nn
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import torch.nn.functional as F
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from typing import Iterable, Optional
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from funasr.register import tables
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from funasr.models.ctc.ctc import CTC
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from funasr.utils.datadir_writer import DatadirWriter
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from funasr.models.paraformer.search import Hypothesis
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from funasr.train_utils.device_funcs import force_gatherable
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from funasr.losses.label_smoothing_loss import LabelSmoothingLoss
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from funasr.metrics.compute_acc import compute_accuracy, th_accuracy
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from funasr.utils.load_utils import load_audio_text_image_video, extract_fbank
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from funasr.models.transformer.utils.nets_utils import make_pad_mask
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class SinusoidalPositionEncoder(torch.nn.Module):
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""" """
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def __int__(self, d_model=80, dropout_rate=0.1):
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pass
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def encode(
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self, positions: torch.Tensor = None, depth: int = None, dtype: torch.dtype = torch.float32
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):
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batch_size = positions.size(0)
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positions = positions.type(dtype)
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device = positions.device
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log_timescale_increment = torch.log(torch.tensor([10000], dtype=dtype, device=device)) / (
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depth / 2 - 1
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)
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inv_timescales = torch.exp(
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torch.arange(depth / 2, device=device).type(dtype) * (-log_timescale_increment)
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)
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inv_timescales = torch.reshape(inv_timescales, [batch_size, -1])
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scaled_time = torch.reshape(positions, [1, -1, 1]) * torch.reshape(
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inv_timescales, [1, 1, -1]
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)
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encoding = torch.cat([torch.sin(scaled_time), torch.cos(scaled_time)], dim=2)
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return encoding.type(dtype)
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def forward(self, x):
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batch_size, timesteps, input_dim = x.size()
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positions = torch.arange(1, timesteps + 1, device=x.device)[None, :]
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position_encoding = self.encode(positions, input_dim, x.dtype).to(x.device)
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return x + position_encoding
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class PositionwiseFeedForward(torch.nn.Module):
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"""Positionwise feed forward layer.
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Args:
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idim (int): Input dimenstion.
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hidden_units (int): The number of hidden units.
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dropout_rate (float): Dropout rate.
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"""
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def __init__(self, idim, hidden_units, dropout_rate, activation=torch.nn.ReLU()):
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"""Construct an PositionwiseFeedForward object."""
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super(PositionwiseFeedForward, self).__init__()
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self.w_1 = torch.nn.Linear(idim, hidden_units)
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self.w_2 = torch.nn.Linear(hidden_units, idim)
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self.dropout = torch.nn.Dropout(dropout_rate)
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self.activation = activation
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def forward(self, x):
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"""Forward function."""
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return self.w_2(self.dropout(self.activation(self.w_1(x))))
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class MultiHeadedAttentionSANM(nn.Module):
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"""Multi-Head Attention layer.
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Args:
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n_head (int): The number of heads.
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n_feat (int): The number of features.
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dropout_rate (float): Dropout rate.
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"""
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def __init__(
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self,
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n_head,
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in_feat,
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n_feat,
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dropout_rate,
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kernel_size,
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sanm_shfit=0,
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lora_list=None,
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lora_rank=8,
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lora_alpha=16,
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lora_dropout=0.1,
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):
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"""Construct an MultiHeadedAttention object."""
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super().__init__()
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assert n_feat % n_head == 0
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# We assume d_v always equals d_k
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self.d_k = n_feat // n_head
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self.h = n_head
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# self.linear_q = nn.Linear(n_feat, n_feat)
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# self.linear_k = nn.Linear(n_feat, n_feat)
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# self.linear_v = nn.Linear(n_feat, n_feat)
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self.linear_out = nn.Linear(n_feat, n_feat)
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self.linear_q_k_v = nn.Linear(in_feat, n_feat * 3)
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self.attn = None
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self.dropout = nn.Dropout(p=dropout_rate)
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self.fsmn_block = nn.Conv1d(
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n_feat, n_feat, kernel_size, stride=1, padding=0, groups=n_feat, bias=False
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)
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# padding
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left_padding = (kernel_size - 1) // 2
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if sanm_shfit > 0:
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left_padding = left_padding + sanm_shfit
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right_padding = kernel_size - 1 - left_padding
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self.pad_fn = nn.ConstantPad1d((left_padding, right_padding), 0.0)
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def forward_fsmn(self, inputs, mask, mask_shfit_chunk=None):
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b, t, d = inputs.size()
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if mask is not None:
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mask = torch.reshape(mask, (b, -1, 1))
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if mask_shfit_chunk is not None:
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mask = mask * mask_shfit_chunk
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inputs = inputs * mask
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x = inputs.transpose(1, 2)
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x = self.pad_fn(x)
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x = self.fsmn_block(x)
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x = x.transpose(1, 2)
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x += inputs
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x = self.dropout(x)
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if mask is not None:
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x = x * mask
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return x
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def forward_qkv(self, x):
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"""Transform query, key and value.
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Args:
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query (torch.Tensor): Query tensor (#batch, time1, size).
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key (torch.Tensor): Key tensor (#batch, time2, size).
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value (torch.Tensor): Value tensor (#batch, time2, size).
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Returns:
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torch.Tensor: Transformed query tensor (#batch, n_head, time1, d_k).
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torch.Tensor: Transformed key tensor (#batch, n_head, time2, d_k).
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torch.Tensor: Transformed value tensor (#batch, n_head, time2, d_k).
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"""
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b, t, d = x.size()
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q_k_v = self.linear_q_k_v(x)
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q, k, v = torch.split(q_k_v, int(self.h * self.d_k), dim=-1)
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q_h = torch.reshape(q, (b, t, self.h, self.d_k)).transpose(
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1, 2
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) # (batch, head, time1, d_k)
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k_h = torch.reshape(k, (b, t, self.h, self.d_k)).transpose(
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1, 2
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) # (batch, head, time2, d_k)
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v_h = torch.reshape(v, (b, t, self.h, self.d_k)).transpose(
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1, 2
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) # (batch, head, time2, d_k)
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return q_h, k_h, v_h, v
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def forward_attention(self, value, scores, mask, mask_att_chunk_encoder=None):
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"""Compute attention context vector.
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Args:
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value (torch.Tensor): Transformed value (#batch, n_head, time2, d_k).
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scores (torch.Tensor): Attention score (#batch, n_head, time1, time2).
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mask (torch.Tensor): Mask (#batch, 1, time2) or (#batch, time1, time2).
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Returns:
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torch.Tensor: Transformed value (#batch, time1, d_model)
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weighted by the attention score (#batch, time1, time2).
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"""
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n_batch = value.size(0)
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if mask is not None:
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if mask_att_chunk_encoder is not None:
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mask = mask * mask_att_chunk_encoder
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mask = mask.unsqueeze(1).eq(0) # (batch, 1, *, time2)
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min_value = -float(
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"inf"
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) # float(numpy.finfo(torch.tensor(0, dtype=scores.dtype).numpy().dtype).min)
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scores = scores.masked_fill(mask, min_value)
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self.attn = torch.softmax(scores, dim=-1).masked_fill(
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mask, 0.0
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) # (batch, head, time1, time2)
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else:
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self.attn = torch.softmax(scores, dim=-1) # (batch, head, time1, time2)
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p_attn = self.dropout(self.attn)
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x = torch.matmul(p_attn, value) # (batch, head, time1, d_k)
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x = (
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x.transpose(1, 2).contiguous().view(n_batch, -1, self.h * self.d_k)
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) # (batch, time1, d_model)
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return self.linear_out(x) # (batch, time1, d_model)
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def forward(self, x, mask, mask_shfit_chunk=None, mask_att_chunk_encoder=None):
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"""Compute scaled dot product attention.
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Args:
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query (torch.Tensor): Query tensor (#batch, time1, size).
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key (torch.Tensor): Key tensor (#batch, time2, size).
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value (torch.Tensor): Value tensor (#batch, time2, size).
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mask (torch.Tensor): Mask tensor (#batch, 1, time2) or
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(#batch, time1, time2).
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Returns:
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torch.Tensor: Output tensor (#batch, time1, d_model).
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"""
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q_h, k_h, v_h, v = self.forward_qkv(x)
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fsmn_memory = self.forward_fsmn(v, mask, mask_shfit_chunk)
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q_h = q_h * self.d_k ** (-0.5)
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scores = torch.matmul(q_h, k_h.transpose(-2, -1))
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att_outs = self.forward_attention(v_h, scores, mask, mask_att_chunk_encoder)
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return att_outs + fsmn_memory
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def forward_chunk(self, x, cache=None, chunk_size=None, look_back=0):
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"""Compute scaled dot product attention.
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Args:
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query (torch.Tensor): Query tensor (#batch, time1, size).
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key (torch.Tensor): Key tensor (#batch, time2, size).
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value (torch.Tensor): Value tensor (#batch, time2, size).
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mask (torch.Tensor): Mask tensor (#batch, 1, time2) or
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(#batch, time1, time2).
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Returns:
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torch.Tensor: Output tensor (#batch, time1, d_model).
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"""
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q_h, k_h, v_h, v = self.forward_qkv(x)
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if chunk_size is not None and look_back > 0 or look_back == -1:
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if cache is not None:
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k_h_stride = k_h[:, :, : -(chunk_size[2]), :]
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v_h_stride = v_h[:, :, : -(chunk_size[2]), :]
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k_h = torch.cat((cache["k"], k_h), dim=2)
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v_h = torch.cat((cache["v"], v_h), dim=2)
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cache["k"] = torch.cat((cache["k"], k_h_stride), dim=2)
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cache["v"] = torch.cat((cache["v"], v_h_stride), dim=2)
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if look_back != -1:
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cache["k"] = cache["k"][:, :, -(look_back * chunk_size[1]) :, :]
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cache["v"] = cache["v"][:, :, -(look_back * chunk_size[1]) :, :]
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else:
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cache_tmp = {
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"k": k_h[:, :, : -(chunk_size[2]), :],
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"v": v_h[:, :, : -(chunk_size[2]), :],
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}
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cache = cache_tmp
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fsmn_memory = self.forward_fsmn(v, None)
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q_h = q_h * self.d_k ** (-0.5)
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scores = torch.matmul(q_h, k_h.transpose(-2, -1))
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att_outs = self.forward_attention(v_h, scores, None)
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return att_outs + fsmn_memory, cache
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class LayerNorm(nn.LayerNorm):
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def __init__(self, *args, **kwargs):
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super().__init__(*args, **kwargs)
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def forward(self, input):
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output = F.layer_norm(
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input.float(),
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self.normalized_shape,
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self.weight.float() if self.weight is not None else None,
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self.bias.float() if self.bias is not None else None,
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self.eps,
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)
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return output.type_as(input)
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def sequence_mask(lengths, maxlen=None, dtype=torch.float32, device=None):
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if maxlen is None:
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maxlen = lengths.max()
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row_vector = torch.arange(0, maxlen, 1).to(lengths.device)
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matrix = torch.unsqueeze(lengths, dim=-1)
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mask = row_vector < matrix
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mask = mask.detach()
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return mask.type(dtype).to(device) if device is not None else mask.type(dtype)
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class EncoderLayerSANM(nn.Module):
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def __init__(
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self,
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in_size,
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size,
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self_attn,
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feed_forward,
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dropout_rate,
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normalize_before=True,
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concat_after=False,
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stochastic_depth_rate=0.0,
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):
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"""Construct an EncoderLayer object."""
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super(EncoderLayerSANM, self).__init__()
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self.self_attn = self_attn
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self.feed_forward = feed_forward
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self.norm1 = LayerNorm(in_size)
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self.norm2 = LayerNorm(size)
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self.dropout = nn.Dropout(dropout_rate)
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self.in_size = in_size
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self.size = size
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self.normalize_before = normalize_before
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self.concat_after = concat_after
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if self.concat_after:
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self.concat_linear = nn.Linear(size + size, size)
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self.stochastic_depth_rate = stochastic_depth_rate
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self.dropout_rate = dropout_rate
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def forward(self, x, mask, cache=None, mask_shfit_chunk=None, mask_att_chunk_encoder=None):
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"""Compute encoded features.
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Args:
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x_input (torch.Tensor): Input tensor (#batch, time, size).
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mask (torch.Tensor): Mask tensor for the input (#batch, time).
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cache (torch.Tensor): Cache tensor of the input (#batch, time - 1, size).
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Returns:
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torch.Tensor: Output tensor (#batch, time, size).
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torch.Tensor: Mask tensor (#batch, time).
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"""
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skip_layer = False
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# with stochastic depth, residual connection `x + f(x)` becomes
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# `x <- x + 1 / (1 - p) * f(x)` at training time.
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stoch_layer_coeff = 1.0
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if self.training and self.stochastic_depth_rate > 0:
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skip_layer = torch.rand(1).item() < self.stochastic_depth_rate
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stoch_layer_coeff = 1.0 / (1 - self.stochastic_depth_rate)
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if skip_layer:
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if cache is not None:
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x = torch.cat([cache, x], dim=1)
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return x, mask
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residual = x
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if self.normalize_before:
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x = self.norm1(x)
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if self.concat_after:
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x_concat = torch.cat(
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(
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x,
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self.self_attn(
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x,
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mask,
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mask_shfit_chunk=mask_shfit_chunk,
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mask_att_chunk_encoder=mask_att_chunk_encoder,
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),
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),
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dim=-1,
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)
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if self.in_size == self.size:
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x = residual + stoch_layer_coeff * self.concat_linear(x_concat)
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else:
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x = stoch_layer_coeff * self.concat_linear(x_concat)
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else:
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if self.in_size == self.size:
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x = residual + stoch_layer_coeff * self.dropout(
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self.self_attn(
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x,
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mask,
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mask_shfit_chunk=mask_shfit_chunk,
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mask_att_chunk_encoder=mask_att_chunk_encoder,
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)
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)
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else:
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x = stoch_layer_coeff * self.dropout(
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self.self_attn(
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x,
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mask,
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mask_shfit_chunk=mask_shfit_chunk,
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mask_att_chunk_encoder=mask_att_chunk_encoder,
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)
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)
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if not self.normalize_before:
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x = self.norm1(x)
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residual = x
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if self.normalize_before:
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x = self.norm2(x)
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x = residual + stoch_layer_coeff * self.dropout(self.feed_forward(x))
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if not self.normalize_before:
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x = self.norm2(x)
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return x, mask, cache, mask_shfit_chunk, mask_att_chunk_encoder
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def forward_chunk(self, x, cache=None, chunk_size=None, look_back=0):
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"""Compute encoded features.
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Args:
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x_input (torch.Tensor): Input tensor (#batch, time, size).
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mask (torch.Tensor): Mask tensor for the input (#batch, time).
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cache (torch.Tensor): Cache tensor of the input (#batch, time - 1, size).
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Returns:
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torch.Tensor: Output tensor (#batch, time, size).
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torch.Tensor: Mask tensor (#batch, time).
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"""
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residual = x
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if self.normalize_before:
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x = self.norm1(x)
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if self.in_size == self.size:
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attn, cache = self.self_attn.forward_chunk(x, cache, chunk_size, look_back)
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x = residual + attn
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else:
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x, cache = self.self_attn.forward_chunk(x, cache, chunk_size, look_back)
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if not self.normalize_before:
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x = self.norm1(x)
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residual = x
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if self.normalize_before:
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x = self.norm2(x)
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x = residual + self.feed_forward(x)
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if not self.normalize_before:
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x = self.norm2(x)
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return x, cache
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@tables.register("encoder_classes", "SenseVoiceEncoderSmall")
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class SenseVoiceEncoderSmall(nn.Module):
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"""
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Author: Speech Lab of DAMO Academy, Alibaba Group
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SCAMA: Streaming chunk-aware multihead attention for online end-to-end speech recognition
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https://arxiv.org/abs/2006.01713
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"""
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def __init__(
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self,
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input_size: int,
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output_size: int = 256,
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attention_heads: int = 4,
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linear_units: int = 2048,
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num_blocks: int = 6,
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tp_blocks: int = 0,
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dropout_rate: float = 0.1,
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positional_dropout_rate: float = 0.1,
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attention_dropout_rate: float = 0.0,
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stochastic_depth_rate: float = 0.0,
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input_layer: Optional[str] = "conv2d",
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pos_enc_class=SinusoidalPositionEncoder,
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normalize_before: bool = True,
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concat_after: bool = False,
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positionwise_layer_type: str = "linear",
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positionwise_conv_kernel_size: int = 1,
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padding_idx: int = -1,
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kernel_size: int = 11,
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sanm_shfit: int = 0,
|
|
selfattention_layer_type: str = "sanm",
|
|
**kwargs,
|
|
):
|
|
super().__init__()
|
|
self._output_size = output_size
|
|
|
|
self.embed = SinusoidalPositionEncoder()
|
|
|
|
self.normalize_before = normalize_before
|
|
|
|
positionwise_layer = PositionwiseFeedForward
|
|
positionwise_layer_args = (
|
|
output_size,
|
|
linear_units,
|
|
dropout_rate,
|
|
)
|
|
|
|
encoder_selfattn_layer = MultiHeadedAttentionSANM
|
|
encoder_selfattn_layer_args0 = (
|
|
attention_heads,
|
|
input_size,
|
|
output_size,
|
|
attention_dropout_rate,
|
|
kernel_size,
|
|
sanm_shfit,
|
|
)
|
|
encoder_selfattn_layer_args = (
|
|
attention_heads,
|
|
output_size,
|
|
output_size,
|
|
attention_dropout_rate,
|
|
kernel_size,
|
|
sanm_shfit,
|
|
)
|
|
|
|
self.encoders0 = nn.ModuleList(
|
|
[
|
|
EncoderLayerSANM(
|
|
input_size,
|
|
output_size,
|
|
encoder_selfattn_layer(*encoder_selfattn_layer_args0),
|
|
positionwise_layer(*positionwise_layer_args),
|
|
dropout_rate,
|
|
)
|
|
for i in range(1)
|
|
]
|
|
)
|
|
self.encoders = nn.ModuleList(
|
|
[
|
|
EncoderLayerSANM(
|
|
output_size,
|
|
output_size,
|
|
encoder_selfattn_layer(*encoder_selfattn_layer_args),
|
|
positionwise_layer(*positionwise_layer_args),
|
|
dropout_rate,
|
|
)
|
|
for i in range(num_blocks - 1)
|
|
]
|
|
)
|
|
|
|
self.tp_encoders = nn.ModuleList(
|
|
[
|
|
EncoderLayerSANM(
|
|
output_size,
|
|
output_size,
|
|
encoder_selfattn_layer(*encoder_selfattn_layer_args),
|
|
positionwise_layer(*positionwise_layer_args),
|
|
dropout_rate,
|
|
)
|
|
for i in range(tp_blocks)
|
|
]
|
|
)
|
|
|
|
self.after_norm = LayerNorm(output_size)
|
|
|
|
self.tp_norm = LayerNorm(output_size)
|
|
|
|
def output_size(self) -> int:
|
|
return self._output_size
|
|
|
|
def forward(
|
|
self,
|
|
xs_pad: torch.Tensor,
|
|
ilens: torch.Tensor,
|
|
):
|
|
"""Embed positions in tensor."""
|
|
masks = sequence_mask(ilens, device=ilens.device)[:, None, :]
|
|
|
|
xs_pad *= self.output_size() ** 0.5
|
|
|
|
xs_pad = self.embed(xs_pad)
|
|
|
|
# forward encoder1
|
|
for layer_idx, encoder_layer in enumerate(self.encoders0):
|
|
encoder_outs = encoder_layer(xs_pad, masks)
|
|
xs_pad, masks = encoder_outs[0], encoder_outs[1]
|
|
|
|
for layer_idx, encoder_layer in enumerate(self.encoders):
|
|
encoder_outs = encoder_layer(xs_pad, masks)
|
|
xs_pad, masks = encoder_outs[0], encoder_outs[1]
|
|
|
|
xs_pad = self.after_norm(xs_pad)
|
|
|
|
# forward encoder2
|
|
olens = masks.squeeze(1).sum(1).int()
|
|
|
|
for layer_idx, encoder_layer in enumerate(self.tp_encoders):
|
|
encoder_outs = encoder_layer(xs_pad, masks)
|
|
xs_pad, masks = encoder_outs[0], encoder_outs[1]
|
|
|
|
xs_pad = self.tp_norm(xs_pad)
|
|
return xs_pad, olens
|
|
|
|
|
|
@tables.register("model_classes", "SenseVoiceSmall")
|
|
class SenseVoiceSmall(nn.Module):
|
|
"""CTC-attention hybrid Encoder-Decoder model"""
|
|
|
|
def __init__(
|
|
self,
|
|
specaug: str = None,
|
|
specaug_conf: dict = None,
|
|
normalize: str = None,
|
|
normalize_conf: dict = None,
|
|
encoder: str = None,
|
|
encoder_conf: dict = None,
|
|
ctc_conf: dict = None,
|
|
input_size: int = 80,
|
|
vocab_size: int = -1,
|
|
ignore_id: int = -1,
|
|
blank_id: int = 0,
|
|
sos: int = 1,
|
|
eos: int = 2,
|
|
length_normalized_loss: bool = False,
|
|
**kwargs,
|
|
):
|
|
|
|
super().__init__()
|
|
|
|
if specaug is not None:
|
|
specaug_class = tables.specaug_classes.get(specaug)
|
|
specaug = specaug_class(**specaug_conf)
|
|
if normalize is not None:
|
|
normalize_class = tables.normalize_classes.get(normalize)
|
|
normalize = normalize_class(**normalize_conf)
|
|
encoder_class = tables.encoder_classes.get(encoder)
|
|
encoder = encoder_class(input_size=input_size, **encoder_conf)
|
|
encoder_output_size = encoder.output_size()
|
|
|
|
if ctc_conf is None:
|
|
ctc_conf = {}
|
|
ctc = CTC(odim=vocab_size, encoder_output_size=encoder_output_size, **ctc_conf)
|
|
|
|
self.blank_id = blank_id
|
|
self.sos = sos if sos is not None else vocab_size - 1
|
|
self.eos = eos if eos is not None else vocab_size - 1
|
|
self.vocab_size = vocab_size
|
|
self.ignore_id = ignore_id
|
|
self.specaug = specaug
|
|
self.normalize = normalize
|
|
self.encoder = encoder
|
|
self.error_calculator = None
|
|
|
|
self.ctc = ctc
|
|
|
|
self.length_normalized_loss = length_normalized_loss
|
|
self.encoder_output_size = encoder_output_size
|
|
|
|
self.lid_dict = {"auto": 0, "zh": 3, "en": 4, "yue": 7, "ja": 11, "ko": 12, "nospeech": 13}
|
|
self.lid_int_dict = {24884: 3, 24885: 4, 24888: 7, 24892: 11, 24896: 12, 24992: 13}
|
|
self.textnorm_dict = {"withitn": 14, "woitn": 15}
|
|
self.textnorm_int_dict = {25016: 14, 25017: 15}
|
|
self.embed = torch.nn.Embedding(
|
|
7 + len(self.lid_dict) + len(self.textnorm_dict), input_size
|
|
)
|
|
self.emo_dict = {
|
|
"unk": 25009,
|
|
"happy": 25001,
|
|
"sad": 25002,
|
|
"angry": 25003,
|
|
"neutral": 25004,
|
|
}
|
|
|
|
self.criterion_att = LabelSmoothingLoss(
|
|
size=self.vocab_size,
|
|
padding_idx=self.ignore_id,
|
|
smoothing=kwargs.get("lsm_weight", 0.0),
|
|
normalize_length=self.length_normalized_loss,
|
|
)
|
|
|
|
@staticmethod
|
|
def from_pretrained(model: str = None, **kwargs):
|
|
from funasr import AutoModel
|
|
|
|
model, kwargs = AutoModel.build_model(model=model, trust_remote_code=True, **kwargs)
|
|
|
|
return model, kwargs
|
|
|
|
def forward(
|
|
self,
|
|
speech: torch.Tensor,
|
|
speech_lengths: torch.Tensor,
|
|
text: torch.Tensor,
|
|
text_lengths: torch.Tensor,
|
|
**kwargs,
|
|
):
|
|
"""Encoder + Decoder + Calc loss
|
|
Args:
|
|
speech: (Batch, Length, ...)
|
|
speech_lengths: (Batch, )
|
|
text: (Batch, Length)
|
|
text_lengths: (Batch,)
|
|
"""
|
|
# import pdb;
|
|
# pdb.set_trace()
|
|
if len(text_lengths.size()) > 1:
|
|
text_lengths = text_lengths[:, 0]
|
|
if len(speech_lengths.size()) > 1:
|
|
speech_lengths = speech_lengths[:, 0]
|
|
|
|
batch_size = speech.shape[0]
|
|
|
|
# 1. Encoder
|
|
encoder_out, encoder_out_lens = self.encode(speech, speech_lengths, text)
|
|
|
|
loss_ctc, cer_ctc = None, None
|
|
loss_rich, acc_rich = None, None
|
|
stats = dict()
|
|
|
|
loss_ctc, cer_ctc = self._calc_ctc_loss(
|
|
encoder_out[:, 4:, :], encoder_out_lens - 4, text[:, 4:], text_lengths - 4
|
|
)
|
|
|
|
loss_rich, acc_rich = self._calc_rich_ce_loss(encoder_out[:, :4, :], text[:, :4])
|
|
|
|
loss = loss_ctc
|
|
# Collect total loss stats
|
|
stats["loss"] = torch.clone(loss.detach()) if loss_ctc is not None else None
|
|
stats["loss_rich"] = torch.clone(loss_rich.detach()) if loss_rich is not None else None
|
|
stats["acc_rich"] = acc_rich
|
|
|
|
# force_gatherable: to-device and to-tensor if scalar for DataParallel
|
|
if self.length_normalized_loss:
|
|
batch_size = int((text_lengths + 1).sum())
|
|
loss, stats, weight = force_gatherable((loss, stats, batch_size), loss.device)
|
|
return loss, stats, weight
|
|
|
|
def encode(
|
|
self,
|
|
speech: torch.Tensor,
|
|
speech_lengths: torch.Tensor,
|
|
text: torch.Tensor,
|
|
**kwargs,
|
|
):
|
|
"""Frontend + Encoder. Note that this method is used by asr_inference.py
|
|
Args:
|
|
speech: (Batch, Length, ...)
|
|
speech_lengths: (Batch, )
|
|
ind: int
|
|
"""
|
|
|
|
# Data augmentation
|
|
if self.specaug is not None and self.training:
|
|
speech, speech_lengths = self.specaug(speech, speech_lengths)
|
|
|
|
# Normalization for feature: e.g. Global-CMVN, Utterance-CMVN
|
|
if self.normalize is not None:
|
|
speech, speech_lengths = self.normalize(speech, speech_lengths)
|
|
|
|
lids = torch.LongTensor(
|
|
[
|
|
[
|
|
(
|
|
self.lid_int_dict[int(lid)]
|
|
if torch.rand(1) > 0.2 and int(lid) in self.lid_int_dict
|
|
else 0
|
|
)
|
|
]
|
|
for lid in text[:, 0]
|
|
]
|
|
).to(speech.device)
|
|
language_query = self.embed(lids)
|
|
|
|
styles = torch.LongTensor(
|
|
[[self.textnorm_int_dict[int(style)]] for style in text[:, 3]]
|
|
).to(speech.device)
|
|
style_query = self.embed(styles)
|
|
speech = torch.cat((style_query, speech), dim=1)
|
|
speech_lengths += 1
|
|
|
|
event_emo_query = self.embed(torch.LongTensor([[1, 2]]).to(speech.device)).repeat(
|
|
speech.size(0), 1, 1
|
|
)
|
|
input_query = torch.cat((language_query, event_emo_query), dim=1)
|
|
speech = torch.cat((input_query, speech), dim=1)
|
|
speech_lengths += 3
|
|
|
|
encoder_out, encoder_out_lens = self.encoder(speech, speech_lengths)
|
|
|
|
return encoder_out, encoder_out_lens
|
|
|
|
def _calc_ctc_loss(
|
|
self,
|
|
encoder_out: torch.Tensor,
|
|
encoder_out_lens: torch.Tensor,
|
|
ys_pad: torch.Tensor,
|
|
ys_pad_lens: torch.Tensor,
|
|
):
|
|
# Calc CTC loss
|
|
loss_ctc = self.ctc(encoder_out, encoder_out_lens, ys_pad, ys_pad_lens)
|
|
|
|
# Calc CER using CTC
|
|
cer_ctc = None
|
|
if not self.training and self.error_calculator is not None:
|
|
ys_hat = self.ctc.argmax(encoder_out).data
|
|
cer_ctc = self.error_calculator(ys_hat.cpu(), ys_pad.cpu(), is_ctc=True)
|
|
return loss_ctc, cer_ctc
|
|
|
|
def _calc_rich_ce_loss(
|
|
self,
|
|
encoder_out: torch.Tensor,
|
|
ys_pad: torch.Tensor,
|
|
):
|
|
decoder_out = self.ctc.ctc_lo(encoder_out)
|
|
# 2. Compute attention loss
|
|
loss_rich = self.criterion_att(decoder_out, ys_pad.contiguous())
|
|
acc_rich = th_accuracy(
|
|
decoder_out.view(-1, self.vocab_size),
|
|
ys_pad.contiguous(),
|
|
ignore_label=self.ignore_id,
|
|
)
|
|
|
|
return loss_rich, acc_rich
|
|
|
|
def inference(
|
|
self,
|
|
data_in,
|
|
data_lengths=None,
|
|
key: list = ["wav_file_tmp_name"],
|
|
tokenizer=None,
|
|
frontend=None,
|
|
**kwargs,
|
|
):
|
|
|
|
meta_data = {}
|
|
if (
|
|
isinstance(data_in, torch.Tensor) and kwargs.get("data_type", "sound") == "fbank"
|
|
): # fbank
|
|
speech, speech_lengths = data_in, data_lengths
|
|
if len(speech.shape) < 3:
|
|
speech = speech[None, :, :]
|
|
if speech_lengths is None:
|
|
speech_lengths = speech.shape[1]
|
|
else:
|
|
# extract fbank feats
|
|
time1 = time.perf_counter()
|
|
audio_sample_list = load_audio_text_image_video(
|
|
data_in,
|
|
fs=frontend.fs,
|
|
audio_fs=kwargs.get("fs", 16000),
|
|
data_type=kwargs.get("data_type", "sound"),
|
|
tokenizer=tokenizer,
|
|
)
|
|
time2 = time.perf_counter()
|
|
meta_data["load_data"] = f"{time2 - time1:0.3f}"
|
|
speech, speech_lengths = extract_fbank(
|
|
audio_sample_list, data_type=kwargs.get("data_type", "sound"), frontend=frontend
|
|
)
|
|
time3 = time.perf_counter()
|
|
meta_data["extract_feat"] = f"{time3 - time2:0.3f}"
|
|
meta_data["batch_data_time"] = (
|
|
speech_lengths.sum().item() * frontend.frame_shift * frontend.lfr_n / 1000
|
|
)
|
|
|
|
speech = speech.to(device=kwargs["device"])
|
|
speech_lengths = speech_lengths.to(device=kwargs["device"])
|
|
|
|
language = kwargs.get("language", "auto")
|
|
language_query = self.embed(
|
|
torch.LongTensor([[self.lid_dict[language] if language in self.lid_dict else 0]]).to(
|
|
speech.device
|
|
)
|
|
).repeat(speech.size(0), 1, 1)
|
|
|
|
use_itn = kwargs.get("use_itn", False)
|
|
textnorm = kwargs.get("text_norm", None)
|
|
if textnorm is None:
|
|
textnorm = "withitn" if use_itn else "woitn"
|
|
textnorm_query = self.embed(
|
|
torch.LongTensor([[self.textnorm_dict[textnorm]]]).to(speech.device)
|
|
).repeat(speech.size(0), 1, 1)
|
|
speech = torch.cat((textnorm_query, speech), dim=1)
|
|
speech_lengths += 1
|
|
|
|
event_emo_query = self.embed(torch.LongTensor([[1, 2]]).to(speech.device)).repeat(
|
|
speech.size(0), 1, 1
|
|
)
|
|
input_query = torch.cat((language_query, event_emo_query), dim=1)
|
|
speech = torch.cat((input_query, speech), dim=1)
|
|
speech_lengths += 3
|
|
|
|
# Encoder
|
|
encoder_out, encoder_out_lens = self.encoder(speech, speech_lengths)
|
|
if isinstance(encoder_out, tuple):
|
|
encoder_out = encoder_out[0]
|
|
|
|
# c. Passed the encoder result and the beam search
|
|
ctc_logits = self.ctc.log_softmax(encoder_out)
|
|
if kwargs.get("ban_emo_unk", False):
|
|
ctc_logits[:, :, self.emo_dict["unk"]] = -float("inf")
|
|
|
|
results = []
|
|
b, n, d = encoder_out.size()
|
|
if isinstance(key[0], (list, tuple)):
|
|
key = key[0]
|
|
if len(key) < b:
|
|
key = key * b
|
|
for i in range(b):
|
|
x = ctc_logits[i, : encoder_out_lens[i].item(), :]
|
|
yseq = x.argmax(dim=-1)
|
|
yseq = torch.unique_consecutive(yseq, dim=-1)
|
|
|
|
ibest_writer = None
|
|
if kwargs.get("output_dir") is not None:
|
|
if not hasattr(self, "writer"):
|
|
self.writer = DatadirWriter(kwargs.get("output_dir"))
|
|
ibest_writer = self.writer[f"1best_recog"]
|
|
|
|
mask = yseq != self.blank_id
|
|
token_int = yseq[mask].tolist()
|
|
|
|
# Change integer-ids to tokens
|
|
text = tokenizer.decode(token_int)
|
|
|
|
result_i = {"key": key[i], "text": text}
|
|
results.append(result_i)
|
|
|
|
if ibest_writer is not None:
|
|
ibest_writer["text"][key[i]] = text
|
|
|
|
return results, meta_data
|
|
|
|
def export(self, **kwargs):
|
|
from .export_meta import export_rebuild_model
|
|
|
|
if "max_seq_len" not in kwargs:
|
|
kwargs["max_seq_len"] = 512
|
|
models = export_rebuild_model(model=self, **kwargs)
|
|
return models
|
|
|
|
|
|
class Linear(nn.Linear):
|
|
def forward(self, x: Tensor) -> Tensor:
|
|
return F.linear(
|
|
x,
|
|
self.weight.to(x.dtype),
|
|
None if self.bias is None else self.bias.to(x.dtype),
|
|
)
|
|
|
|
|
|
class Conv1d(nn.Conv1d):
|
|
def _conv_forward(self, x, weight, bias):
|
|
return super()._conv_forward(
|
|
x, weight.to(x.dtype), None if bias is None else bias.to(x.dtype)
|
|
)
|
|
|
|
|
|
def sinusoids(length, channels, max_timescale=10000):
|
|
"""Returns sinusoids for positional embedding"""
|
|
assert channels % 2 == 0
|
|
log_timescale_increment = np.log(max_timescale) / (channels // 2 - 1)
|
|
inv_timescales = torch.exp(-log_timescale_increment * torch.arange(channels // 2))
|
|
scaled_time = torch.arange(length)[:, np.newaxis] * inv_timescales[np.newaxis, :]
|
|
return torch.cat([torch.sin(scaled_time), torch.cos(scaled_time)], dim=1)
|
|
|
|
|
|
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, t, 1)
|
|
min_value = -float(
|
|
"inf"
|
|
) # 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()
|
|
|
|
|
|
class MultiHeadAttentionSdpa(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, is_causal=False)
|
|
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)
|
|
is_causal = kwargs.get("is_causal", False)
|
|
n_batch, n_ctx, n_state = q.shape
|
|
scale = (n_state // self.n_head) ** -0.5
|
|
q = q.view(*q.shape[:2], self.n_head, -1).permute(0, 2, 1, 3)
|
|
k = k.view(*k.shape[:2], self.n_head, -1).permute(0, 2, 1, 3)
|
|
v = v.view(*v.shape[:2], self.n_head, -1).permute(0, 2, 1, 3)
|
|
|
|
if mask is not None:
|
|
if not is_pad_mask:
|
|
mask = None
|
|
is_causal = True
|
|
else:
|
|
mask = mask.unsqueeze(1).to(torch.bool) # (batch, 1, 1, t)
|
|
|
|
attn_output = torch.nn.functional.scaled_dot_product_attention(
|
|
q,
|
|
k,
|
|
v,
|
|
attn_mask=mask,
|
|
dropout_p=0.0,
|
|
is_causal=is_causal,
|
|
scale=scale,
|
|
)
|
|
if mask is not None:
|
|
attn_output = attn_output.masked_fill(mask.transpose(2, 3).logical_not(), 0.0)
|
|
attn_output = attn_output.transpose(1, 2)
|
|
attn_output = attn_output.flatten(start_dim=2)
|
|
return attn_output, None
|
|
|
|
|
|
# Copied from transformers.models.mistral.modeling_mistral.MistralRotaryEmbedding with Mistral
|
|
class RotaryEmbedding(nn.Module):
|
|
def __init__(self, dim, max_position_embeddings=2048, base=10000, device=None):
|
|
super().__init__()
|
|
|
|
self.dim = dim
|
|
self.max_position_embeddings = max_position_embeddings
|
|
self.base = base
|
|
inv_freq = 1.0 / (
|
|
self.base
|
|
** (torch.arange(0, self.dim, 2, dtype=torch.int64).float().to(device) / self.dim)
|
|
)
|
|
self.register_buffer("inv_freq", inv_freq, persistent=False)
|
|
|
|
# Build here to make `torch.jit.trace` work.
|
|
self._set_cos_sin_cache(
|
|
seq_len=max_position_embeddings,
|
|
device=self.inv_freq.device,
|
|
dtype=torch.get_default_dtype(),
|
|
)
|
|
|
|
def _set_cos_sin_cache(self, seq_len, device, dtype):
|
|
self.max_seq_len_cached = seq_len
|
|
t = torch.arange(self.max_seq_len_cached, device=device, dtype=torch.int64).type_as(
|
|
self.inv_freq
|
|
)
|
|
|
|
freqs = torch.outer(t, self.inv_freq)
|
|
# Different from paper, but it uses a different permutation in order to obtain the same calculation
|
|
emb = torch.cat((freqs, freqs), dim=-1)
|
|
self.register_buffer("cos_cached", emb.cos().to(dtype), persistent=False)
|
|
self.register_buffer("sin_cached", emb.sin().to(dtype), persistent=False)
|
|
|
|
def forward(self, x, seq_len=None):
|
|
# x: [bs, num_attention_heads, seq_len, head_size]
|
|
if seq_len > self.max_seq_len_cached:
|
|
self._set_cos_sin_cache(seq_len=seq_len, device=x.device, dtype=x.dtype)
|
|
|
|
return (
|
|
self.cos_cached[:seq_len].to(dtype=x.dtype),
|
|
self.sin_cached[:seq_len].to(dtype=x.dtype),
|
|
)
|
|
|
|
|
|
# Copied from transformers.models.llama.modeling_llama.rotate_half
|
|
def rotate_half(x):
|
|
"""Rotates half the hidden dims of the input."""
|
|
x1 = x[..., : x.shape[-1] // 2]
|
|
x2 = x[..., x.shape[-1] // 2 :]
|
|
return torch.cat((-x2, x1), dim=-1)
|
|
|
|
|
|
# Copied from transformers.models.mistral.modeling_mistral.apply_rotary_pos_emb
|
|
def apply_rotary_pos_emb(q, k, cos, sin, position_ids, unsqueeze_dim=1):
|
|
"""Applies Rotary Position Embedding to the query and key tensors.
|
|
|
|
Args:
|
|
q (`torch.Tensor`): The query tensor.
|
|
k (`torch.Tensor`): The key tensor.
|
|
cos (`torch.Tensor`): The cosine part of the rotary embedding.
|
|
sin (`torch.Tensor`): The sine part of the rotary embedding.
|
|
position_ids (`torch.Tensor`):
|
|
The position indices of the tokens corresponding to the query and key tensors. For example, this can be
|
|
used to pass offsetted position ids when working with a KV-cache.
|
|
unsqueeze_dim (`int`, *optional*, defaults to 1):
|
|
The 'unsqueeze_dim' argument specifies the dimension along which to unsqueeze cos[position_ids] and
|
|
sin[position_ids] so that they can be properly broadcasted to the dimensions of q and k. For example, note
|
|
that cos[position_ids] and sin[position_ids] have the shape [batch_size, seq_len, head_dim]. Then, if q and
|
|
k have the shape [batch_size, heads, seq_len, head_dim], then setting unsqueeze_dim=1 makes
|
|
cos[position_ids] and sin[position_ids] broadcastable to the shapes of q and k. Similarly, if q and k have
|
|
the shape [batch_size, seq_len, heads, head_dim], then set unsqueeze_dim=2.
|
|
Returns:
|
|
`tuple(torch.Tensor)` comprising of the query and key tensors rotated using the Rotary Position Embedding.
|
|
"""
|
|
cos = cos[position_ids].unsqueeze(unsqueeze_dim)
|
|
sin = sin[position_ids].unsqueeze(unsqueeze_dim)
|
|
q_embed = (q * cos) + (rotate_half(q) * sin)
|
|
k_embed = (k * cos) + (rotate_half(k) * sin)
|
|
return q_embed, k_embed
|
|
|
|
|
|
class MultiHeadAttentionRoPE(nn.Module):
|
|
def __init__(self, linear_units: int, attention_heads: int, **kwargs):
|
|
super().__init__()
|
|
self.attention_heads = attention_heads
|
|
self.query = Linear(linear_units, linear_units)
|
|
self.key = Linear(linear_units, linear_units, bias=False)
|
|
self.value = Linear(linear_units, linear_units)
|
|
self.out = Linear(linear_units, linear_units)
|
|
self.rotary_emb = RotaryEmbedding(
|
|
attention_heads,
|
|
max_position_embeddings=kwargs.get("max_position_embeddings", 2048),
|
|
base=kwargs.get("rope_theta", 10000),
|
|
)
|
|
|
|
def forward(
|
|
self,
|
|
x: Tensor,
|
|
mask: Optional[Tensor] = None,
|
|
**kwargs,
|
|
):
|
|
|
|
q = self.query(x)
|
|
k = self.key(x)
|
|
v = self.value(x)
|
|
|
|
wv, qk = self.qkv_attention(q, k, v, mask, **kwargs)
|
|
return self.out(wv), qk
|
|
|
|
def qkv_attention(
|
|
self,
|
|
q: Tensor,
|
|
k: Tensor,
|
|
v: Tensor,
|
|
mask: Optional[Tensor] = None,
|
|
**kwargs,
|
|
):
|
|
|
|
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)
|
|
|
|
position_ids = kwargs.get("position_ids", None)
|
|
kv_seq_len = v.shape[-2]
|
|
cos, sin = self.rotary_emb(v, seq_len=kv_seq_len)
|
|
q, k = apply_rotary_pos_emb(q, k, cos, sin, position_ids)
|
|
|
|
qk = q @ k
|
|
if mask is not None:
|
|
mask = mask.unsqueeze(1).eq(0) # (batch, 1, t, 1)
|
|
min_value = -float(
|
|
"inf"
|
|
) # 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:
|
|
w = w.masked_fill(mask, 0.0)
|
|
return (w @ v).permute(0, 2, 1, 3).flatten(start_dim=2), qk.detach()
|
|
|
|
|
|
class MultiHeadAttentionSdpaRoPE(nn.Module):
|
|
def __init__(self, linear_units: int, attention_heads: int, **kwargs):
|
|
super().__init__()
|
|
self.attention_heads = attention_heads
|
|
self.query = Linear(linear_units, linear_units)
|
|
self.key = Linear(linear_units, linear_units, bias=False)
|
|
self.value = Linear(linear_units, linear_units)
|
|
self.out = Linear(linear_units, linear_units)
|
|
self.rotary_emb = RotaryEmbedding(
|
|
attention_heads,
|
|
max_position_embeddings=kwargs.get("max_position_embeddings", 2048),
|
|
base=kwargs.get("rope_theta", 10000),
|
|
)
|
|
|
|
def forward(
|
|
self,
|
|
x: Tensor,
|
|
mask: Optional[Tensor] = None,
|
|
**kwargs,
|
|
):
|
|
|
|
q = self.query(x)
|
|
k = self.key(x)
|
|
v = self.value(x)
|
|
|
|
wv, qk = self.qkv_attention(q, k, v, mask, **kwargs)
|
|
return self.out(wv), qk
|
|
|
|
def qkv_attention(
|
|
self,
|
|
q: Tensor,
|
|
k: Tensor,
|
|
v: Tensor,
|
|
mask: Optional[Tensor] = None,
|
|
**kwargs,
|
|
):
|
|
|
|
is_causal = kwargs.get("is_causal", False)
|
|
n_batch, n_ctx, n_state = q.shape
|
|
scale = (n_state // self.n_head) ** -0.5
|
|
q = q.view(*q.shape[:2], self.n_head, -1).permute(0, 2, 1, 3)
|
|
k = k.view(*k.shape[:2], self.n_head, -1).permute(0, 2, 1, 3)
|
|
v = v.view(*v.shape[:2], self.n_head, -1).permute(0, 2, 1, 3)
|
|
|
|
position_ids = kwargs.get("position_ids", None)
|
|
kv_seq_len = v.shape[-2]
|
|
cos, sin = self.rotary_emb(v, seq_len=kv_seq_len)
|
|
q, k = apply_rotary_pos_emb(q, k, cos, sin, position_ids)
|
|
|
|
if mask is not None:
|
|
mask = mask.unsqueeze(1).to(torch.bool) # (batch, 1, 1, t)
|
|
|
|
attn_output = torch.nn.functional.scaled_dot_product_attention(
|
|
q,
|
|
k,
|
|
v,
|
|
attn_mask=mask,
|
|
dropout_p=0.0,
|
|
is_causal=is_causal,
|
|
scale=scale,
|
|
)
|
|
if mask is not None:
|
|
attn_output = attn_output.masked_fill(mask.transpose(2, 3).logical_not(), 0.0)
|
|
attn_output = attn_output.transpose(1, 2)
|
|
attn_output = attn_output.flatten(start_dim=2)
|
|
return attn_output, None
|
|
|
|
|
|
class MultiHeadAttentionFSMNRoPE(nn.Module):
|
|
def __init__(self, linear_units: int, attention_heads: int, **kwargs):
|
|
super().__init__()
|
|
self.attention_heads = attention_heads
|
|
self.query = Linear(linear_units, linear_units)
|
|
self.key = Linear(linear_units, linear_units, bias=False)
|
|
self.value = Linear(linear_units, linear_units)
|
|
self.out = Linear(linear_units, linear_units)
|
|
self.rotary_emb = RotaryEmbedding(
|
|
attention_heads,
|
|
max_position_embeddings=kwargs.get("max_position_embeddings", 2048),
|
|
base=kwargs.get("rope_theta", 10000),
|
|
)
|
|
|
|
self.fsmn_block = nn.Conv1d(
|
|
linear_units,
|
|
linear_units,
|
|
kwargs.get("kernel_size", 15),
|
|
stride=1,
|
|
padding=0,
|
|
groups=linear_units,
|
|
bias=False,
|
|
)
|
|
# padding
|
|
left_padding = (kwargs.get("kernel_size", 15) - 1) // 2
|
|
left_padding = left_padding + kwargs.get("sanm_shfit", 0)
|
|
right_padding = kwargs.get("kernel_size", 15) - 1 - left_padding
|
|
self.pad_fn = nn.ConstantPad1d((left_padding, right_padding), 0.0)
|
|
|
|
def fsmn(self, inputs, mask):
|
|
b, t, d = inputs.size()
|
|
if mask is not None:
|
|
mask = torch.reshape(mask, (b, -1, 1))
|
|
inputs = inputs * mask
|
|
|
|
x = inputs.transpose(1, 2)
|
|
x = self.pad_fn(x)
|
|
x = self.fsmn_block(x)
|
|
x = x.transpose(1, 2) + inputs
|
|
# x = self.dropout(x)
|
|
if mask is not None:
|
|
x = x * mask
|
|
return x
|
|
|
|
def forward(
|
|
self,
|
|
x: Tensor,
|
|
mask: Optional[Tensor] = None,
|
|
**kwargs,
|
|
):
|
|
q = self.query(x)
|
|
k = self.key(x)
|
|
v = self.value(x)
|
|
|
|
memory = self.fsmn(v, mask=mask)
|
|
wv, qk = self.qkv_attention(q, k, v, mask, **kwargs)
|
|
return self.out(wv) + memory, qk
|
|
|
|
def qkv_attention(
|
|
self,
|
|
q: Tensor,
|
|
k: Tensor,
|
|
v: Tensor,
|
|
mask: Optional[Tensor] = None,
|
|
**kwargs,
|
|
):
|
|
|
|
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)
|
|
|
|
position_ids = kwargs.get("position_ids", None)
|
|
kv_seq_len = v.shape[-2]
|
|
cos, sin = self.rotary_emb(v, seq_len=kv_seq_len)
|
|
q, k = apply_rotary_pos_emb(q, k, cos, sin, position_ids)
|
|
|
|
qk = q @ k
|
|
if mask is not None:
|
|
mask = mask.unsqueeze(1).eq(0) # (batch, 1, t, 1)
|
|
min_value = -float(
|
|
"inf"
|
|
) # 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:
|
|
w = w.masked_fill(mask, 0.0)
|
|
|
|
return (w @ v).permute(0, 2, 1, 3).flatten(start_dim=2), qk.detach()
|
|
|
|
|
|
class MultiHeadAttentionFSMNSdpaRoPE(nn.Module):
|
|
def __init__(self, linear_units: int, attention_heads: int, **kwargs):
|
|
super().__init__()
|
|
|
|
self.attention_heads = attention_heads
|
|
self.query = Linear(linear_units, linear_units)
|
|
self.key = Linear(linear_units, linear_units, bias=False)
|
|
self.value = Linear(linear_units, linear_units)
|
|
self.out = Linear(linear_units, linear_units)
|
|
self.rotary_emb = RotaryEmbedding(
|
|
attention_heads,
|
|
max_position_embeddings=kwargs.get("max_position_embeddings", 2048),
|
|
base=kwargs.get("rope_theta", 10000),
|
|
)
|
|
|
|
self.fsmn_block = nn.Conv1d(
|
|
linear_units,
|
|
linear_units,
|
|
kwargs.get("kernel_size", 15),
|
|
stride=1,
|
|
padding=0,
|
|
groups=linear_units,
|
|
bias=False,
|
|
)
|
|
# padding
|
|
left_padding = (kwargs.get("kernel_size", 15) - 1) // 2
|
|
left_padding = left_padding + kwargs.get("sanm_shfit", 0)
|
|
right_padding = kwargs.get("kernel_size", 15) - 1 - left_padding
|
|
self.pad_fn = nn.ConstantPad1d((left_padding, right_padding), 0.0)
|
|
|
|
def fsmn(self, inputs, mask):
|
|
b, t, d = inputs.size()
|
|
if mask is not None:
|
|
mask = torch.reshape(mask, (b, -1, 1))
|
|
inputs = inputs * mask
|
|
|
|
x = inputs.transpose(1, 2)
|
|
x = self.pad_fn(x)
|
|
x = self.fsmn_block(x)
|
|
x = x.transpose(1, 2) + inputs
|
|
# x = self.dropout(x)
|
|
if mask is not None:
|
|
x = x * mask
|
|
return x
|
|
|
|
def forward(
|
|
self,
|
|
x: Tensor,
|
|
mask: Optional[Tensor] = None,
|
|
**kwargs,
|
|
):
|
|
|
|
q = self.query(x)
|
|
k = self.key(x)
|
|
v = self.value(x)
|
|
memory = self.fsmn(v, mask=mask)
|
|
|
|
wv, qk = self.qkv_attention(q, k, v, mask, **kwargs)
|
|
return self.out(wv) + memory, qk
|
|
|
|
def qkv_attention(
|
|
self,
|
|
q: Tensor,
|
|
k: Tensor,
|
|
v: Tensor,
|
|
mask: Optional[Tensor] = None,
|
|
**kwargs,
|
|
):
|
|
is_causal = kwargs.get("is_causal", False)
|
|
n_batch, n_ctx, n_state = q.shape
|
|
scale = (n_state // self.n_head) ** -0.5
|
|
q = q.view(*q.shape[:2], self.n_head, -1).permute(0, 2, 1, 3)
|
|
k = k.view(*k.shape[:2], self.n_head, -1).permute(0, 2, 1, 3)
|
|
v = v.view(*v.shape[:2], self.n_head, -1).permute(0, 2, 1, 3)
|
|
|
|
position_ids = kwargs.get("position_ids", None)
|
|
kv_seq_len = v.shape[-2]
|
|
cos, sin = self.rotary_emb(v, seq_len=kv_seq_len)
|
|
q, k = apply_rotary_pos_emb(q, k, cos, sin, position_ids)
|
|
|
|
if mask is not None:
|
|
mask = mask.unsqueeze(1).to(torch.bool) # (batch, 1, 1, t)
|
|
|
|
attn_output = torch.nn.functional.scaled_dot_product_attention(
|
|
q,
|
|
k,
|
|
v,
|
|
attn_mask=mask,
|
|
dropout_p=0.0,
|
|
is_causal=is_causal,
|
|
scale=scale,
|
|
)
|
|
if mask is not None:
|
|
attn_output = attn_output.masked_fill(mask.transpose(2, 3).logical_not(), 0.0)
|
|
attn_output = attn_output.transpose(1, 2)
|
|
attn_output = attn_output.flatten(start_dim=2)
|
|
return attn_output, None
|
|
|
|
|
|
att_type_dict = {
|
|
"default": MultiHeadAttention,
|
|
"sdpa": MultiHeadAttentionSdpa,
|
|
"self_att": MultiHeadAttentionRoPE,
|
|
"self_att_sdpa": MultiHeadAttentionSdpaRoPE,
|
|
"self_att_fsmn": MultiHeadAttentionFSMNRoPE,
|
|
"self_att_fsmn_sdpa": MultiHeadAttentionFSMNSdpaRoPE,
|
|
}
|
|
|
|
|
|
class EncoderLayerSANMLarge(nn.Module):
|
|
def __init__(self, linear_units: int, attention_heads: int, **kwargs):
|
|
super().__init__()
|
|
|
|
att_type = kwargs.get("att_type", "self_att_fsmn_sdpa")
|
|
self.attn = att_type_dict[att_type](linear_units, attention_heads)
|
|
self.attn_ln = LayerNorm(linear_units)
|
|
|
|
n_mlp = linear_units * 4
|
|
self.mlp = nn.Sequential(
|
|
Linear(linear_units, n_mlp), nn.GELU(), Linear(n_mlp, linear_units)
|
|
)
|
|
self.mlp_ln = LayerNorm(linear_units)
|
|
|
|
def forward(
|
|
self,
|
|
x: Tensor,
|
|
mask: Optional[Tensor] = None,
|
|
**kwargs,
|
|
):
|
|
is_pad_mask = kwargs.get("is_pad_mask", False)
|
|
|
|
x = x + self.attn(self.attn_ln(x), mask=mask, is_pad_mask=is_pad_mask)[0]
|
|
|
|
x = x + self.mlp(self.mlp_ln(x))
|
|
return x
|
|
|
|
|
|
@tables.register("encoder_classes", "SenseVoiceEncoder")
|
|
class SenseVoiceEncoder(nn.Module):
|
|
def __init__(
|
|
self,
|
|
input_size,
|
|
n_ctx: int,
|
|
linear_units: int,
|
|
attention_heads: int,
|
|
num_blocks: int,
|
|
**kwargs,
|
|
):
|
|
super().__init__()
|
|
self.conv1 = Conv1d(input_size, linear_units, kernel_size=3, stride=2, padding=1)
|
|
self.conv2 = Conv1d(linear_units, linear_units, kernel_size=3, stride=2, padding=1)
|
|
|
|
self.blocks = nn.ModuleList(
|
|
[
|
|
EncoderLayerSANMLarge(
|
|
linear_units, attention_heads, att_type=kwargs.get("att_type", "default")
|
|
)
|
|
for _ in range(num_blocks)
|
|
]
|
|
)
|
|
self.ln_post = LayerNorm(linear_units)
|
|
self.use_padmask = kwargs.get("use_padmask", True)
|
|
self.downsample_rate = kwargs.get("downsample_rate", 4)
|
|
|
|
def forward(
|
|
self,
|
|
x: torch.Tensor,
|
|
ilens: torch.Tensor = None,
|
|
**kwargs,
|
|
):
|
|
use_padmask = self.use_padmask
|
|
x = F.gelu(self.conv1(x))
|
|
x = F.gelu(self.conv2(x))
|
|
x = x.permute(0, 2, 1)
|
|
|
|
n_frames = x.size(1)
|
|
max_pos = n_frames
|
|
# max_pos = self.positional_embedding.size(0)
|
|
# max_pos = n_frames if n_frames < max_pos else max_pos
|
|
# x = (x[:, :max_pos, :] + self.positional_embedding[None, :max_pos, :]).to(x.dtype)
|
|
|
|
if ilens is not None:
|
|
if self.downsample_rate == 4:
|
|
olens = (
|
|
1
|
|
+ (ilens - self.conv1.kernel_size[0] + 2 * self.conv1.padding[0])
|
|
// self.conv1.stride[0]
|
|
)
|
|
else:
|
|
olens = ilens
|
|
olens = (
|
|
1
|
|
+ (olens - self.conv2.kernel_size[0] + 2 * self.conv2.padding[0])
|
|
// self.conv2.stride[0]
|
|
)
|
|
olens = torch.clamp(olens, max=max_pos)
|
|
else:
|
|
olens = None
|
|
|
|
if use_padmask and olens is not None:
|
|
padding_mask = (~make_pad_mask(olens)[:, None, :]).to(torch.bool).to(x.device)
|
|
else:
|
|
padding_mask = None
|
|
|
|
for layer, block in enumerate(self.blocks):
|
|
x = block(x, mask=padding_mask, is_pad_mask=True)
|
|
|
|
x = self.ln_post(x)
|
|
|
|
if ilens is None:
|
|
return x
|
|
else:
|
|
return x, olens
|
|
|
|
|
|
import types
|
|
import time
|
|
import numpy as np
|
|
import torch
|
|
import torch.nn.functional as F
|
|
from torch import Tensor
|
|
from torch import nn
|
|
from torch.cuda.amp import autocast
|
|
from funasr.metrics.compute_acc import compute_accuracy, th_accuracy
|
|
from funasr.losses.label_smoothing_loss import LabelSmoothingLoss
|
|
from funasr.train_utils.device_funcs import force_gatherable
|
|
from . import whisper_lib as whisper
|
|
from funasr.utils.load_utils import load_audio_text_image_video, extract_fbank
|
|
from funasr.utils.datadir_writer import DatadirWriter
|
|
|
|
|
|
@tables.register("model_classes", "SenseVoiceL")
|
|
class SenseVoiceL(nn.Module):
|
|
def __init__(self, *args, **kwargs):
|
|
super().__init__()
|
|
|
|
encoder = kwargs.get("kwargs")
|
|
encoder_conf = kwargs.get("encoder_conf", {})
|
|
encoder_class = tables.encoder_classes.get(encoder)
|
|
encoder = encoder_class(**encoder_conf)
|
|
encoder_output_size = encoder.output_size()
|
|
|
|
dims = kwargs.get("dims", {})
|
|
dims = whisper.model.ModelDimensions(**dims)
|
|
model = whisper.model.Whisper(dims=dims)
|
|
|
|
# encoder
|
|
del model.encoder
|
|
model.encoder = encoder
|
|
|
|
# decoder
|
|
model.decoder.use_padmask = kwargs.get("use_padmask", True)
|
|
from .decoder import sense_voice_decode_forward
|
|
|
|
model.decoder.forward = types.MethodType(sense_voice_decode_forward, model.decoder)
|
|
|
|
self.model = model
|
|
|
|
self.encoder_output_size = self.model.dims.n_audio_state
|
|
|
|
self.activation_checkpoint = kwargs.get("activation_checkpoint", False)
|
|
self.ignore_id = kwargs.get("ignore_id", -1)
|
|
self.vocab_size = kwargs.get("vocab_size", -1)
|
|
self.length_normalized_loss = kwargs.get("length_normalized_loss", True)
|
|
self.criterion_att = LabelSmoothingLoss(
|
|
size=self.vocab_size,
|
|
padding_idx=self.ignore_id,
|
|
smoothing=kwargs.get("lsm_weight", 0.0),
|
|
normalize_length=self.length_normalized_loss,
|
|
)
|
|
|
|
specaug = kwargs.get("specaug", None)
|
|
if specaug is not None:
|
|
specaug_class = tables.specaug_classes.get(specaug)
|
|
specaug = specaug_class(**kwargs.get("specaug_conf", {}))
|
|
self.specaug = specaug
|
|
|
|
def forward(
|
|
self,
|
|
speech: torch.Tensor,
|
|
speech_lengths: torch.Tensor,
|
|
text: torch.Tensor,
|
|
text_lengths: torch.Tensor,
|
|
**kwargs,
|
|
):
|
|
target_mask = kwargs.get("target_mask", None)
|
|
|
|
if len(text_lengths.size()) > 1:
|
|
text_lengths = text_lengths[:, 0]
|
|
if len(speech_lengths.size()) > 1:
|
|
speech_lengths = speech_lengths[:, 0]
|
|
|
|
batch_size = speech.shape[0]
|
|
|
|
if self.activation_checkpoint:
|
|
from torch.utils.checkpoint import checkpoint
|
|
|
|
encoder_out, encoder_out_lens = checkpoint(
|
|
self.encode, speech, speech_lengths, use_reentrant=False
|
|
)
|
|
else:
|
|
encoder_out, encoder_out_lens = self.encode(speech, speech_lengths)
|
|
|
|
loss_att, acc_att, cer_att, wer_att = self._calc_att_loss(
|
|
encoder_out, encoder_out_lens, text, text_lengths, target_mask=target_mask
|
|
)
|
|
loss = loss_att
|
|
stats = {}
|
|
stats["acc"] = acc_att
|
|
stats["loss"] = torch.clone(loss.detach())
|
|
stats["batch_size"] = batch_size
|
|
|
|
# force_gatherable: to-device and to-tensor if scalar for DataParallel
|
|
if self.length_normalized_loss:
|
|
batch_size = int((text_lengths + 1).sum())
|
|
loss, stats, weight = force_gatherable((loss, stats, batch_size), loss.device)
|
|
return loss, stats, weight
|
|
|
|
def encode(
|
|
self,
|
|
speech: torch.Tensor,
|
|
speech_lengths: torch.Tensor,
|
|
**kwargs,
|
|
):
|
|
"""Encoder. Note that this method is used by asr_inference.py
|
|
Args:
|
|
speech: (Batch, Length, ...)
|
|
speech_lengths: (Batch, )
|
|
ind: int
|
|
"""
|
|
with autocast(False):
|
|
|
|
# Data augmentation
|
|
if self.specaug is not None and self.training:
|
|
speech, speech_lengths = self.specaug(speech, speech_lengths)
|
|
|
|
# Forward encoder
|
|
encoder_out, encoder_out_lens = self.model.encoder(speech.permute(0, 2, 1), speech_lengths)
|
|
|
|
return encoder_out, encoder_out_lens
|
|
|
|
def _calc_att_loss(
|
|
self,
|
|
encoder_out: torch.Tensor,
|
|
encoder_out_lens: torch.Tensor,
|
|
ys_pad: torch.Tensor,
|
|
ys_pad_lens: torch.Tensor,
|
|
**kwargs,
|
|
):
|
|
target_mask = kwargs.get("target_mask", None)
|
|
stats = {}
|
|
|
|
# 1. Forward decoder
|
|
decoder_out = self.model.decoder(
|
|
x=ys_pad, xa=encoder_out, hlens=encoder_out_lens, ys_in_lens=ys_pad_lens
|
|
)
|
|
|
|
# 2. Compute attention loss
|
|
mask = torch.ones_like(ys_pad) * (-1)
|
|
ys_pad_mask = (ys_pad * target_mask + mask * (1 - target_mask)).to(torch.int64)
|
|
ys_pad_mask[ys_pad_mask == 0] = -1
|
|
loss_att = self.criterion_att(decoder_out[:, :-1, :], ys_pad_mask[:, 1:])
|
|
|
|
with torch.no_grad():
|
|
preds = torch.argmax(decoder_out, -1)
|
|
acc_att = compute_accuracy(
|
|
preds[:, :-1], ys_pad_mask[:, 1:], ignore_label=self.ignore_id
|
|
)
|
|
|
|
return loss_att, acc_att, None, None
|
|
|
|
def inference(
|
|
self,
|
|
data_in,
|
|
data_lengths=None,
|
|
key: list = None,
|
|
tokenizer=None,
|
|
frontend=None,
|
|
**kwargs,
|
|
):
|
|
if kwargs.get("batch_size", 1) > 1:
|
|
raise NotImplementedError("batch decoding is not implemented")
|
|
|
|
if frontend is None and not hasattr(self, "frontend"):
|
|
frontend_class = tables.frontend_classes.get("WhisperFrontend")
|
|
frontend = frontend_class(
|
|
n_mels=self.model.dims.n_mels, do_pad_trim=kwargs.get("do_pad_trim", True)
|
|
)
|
|
self.frontend = frontend
|
|
else:
|
|
frontend = frontend if frontend is not None else self.frontend
|
|
|
|
meta_data = {}
|
|
if (
|
|
isinstance(data_in, torch.Tensor) and kwargs.get("data_type", "sound") == "fbank"
|
|
): # fbank
|
|
speech, speech_lengths = data_in, data_lengths
|
|
if len(speech.shape) < 3:
|
|
speech = speech[None, :, :]
|
|
if speech_lengths is None:
|
|
speech_lengths = speech.shape[1]
|
|
else:
|
|
# extract fbank feats
|
|
time1 = time.perf_counter()
|
|
audio_sample_list = load_audio_text_image_video(
|
|
data_in,
|
|
fs=frontend.fs if hasattr(frontend, "fs") else 16000,
|
|
audio_fs=kwargs.get("fs", 16000),
|
|
data_type=kwargs.get("data_type", "sound"),
|
|
tokenizer=tokenizer,
|
|
)
|
|
time2 = time.perf_counter()
|
|
meta_data["load_data"] = f"{time2 - time1:0.3f}"
|
|
speech, speech_lengths = extract_fbank(
|
|
audio_sample_list, data_type=kwargs.get("data_type", "sound"), frontend=frontend
|
|
)
|
|
time3 = time.perf_counter()
|
|
meta_data["extract_feat"] = f"{time3 - time2:0.3f}"
|
|
frame_shift = frontend.frame_shift if hasattr(frontend, "frame_shift") else 10
|
|
lfr_n = frontend.lfr_n if hasattr(frontend, "lfr_n") else 1
|
|
meta_data["batch_data_time"] = speech_lengths.sum().item() * frame_shift * lfr_n / 1000
|
|
|
|
speech = speech.to(device=kwargs["device"])[0, :, :]
|
|
speech_lengths = speech_lengths.to(device=kwargs["device"])
|
|
|
|
DecodingOptions = kwargs.get("DecodingOptions", {})
|
|
task = DecodingOptions.get("task", "ASR")
|
|
if isinstance(task, str):
|
|
task = [task]
|
|
task = "".join([f"<|{x}|>" for x in task])
|
|
initial_prompt = kwargs.get("initial_prompt", f"<|startoftranscript|>{task}")
|
|
DecodingOptions["initial_prompt"] = initial_prompt
|
|
|
|
language = DecodingOptions.get("language", None)
|
|
language = None if language == "auto" else language
|
|
DecodingOptions["language"] = language
|
|
|
|
DecodingOptions["vocab_path"] = kwargs["tokenizer_conf"].get("vocab_path", None)
|
|
|
|
if "without_timestamps" not in DecodingOptions:
|
|
DecodingOptions["without_timestamps"] = True
|
|
|
|
options = whisper.DecodingOptions(**DecodingOptions)
|
|
|
|
result = whisper.decode(self.model, speech, options)
|
|
text = f"{result.text}"
|
|
results = []
|
|
result_i = {"key": key[0], "text": text}
|
|
|
|
results.append(result_i)
|
|
|
|
return results, meta_data
|