Upload edit\Qwen3-TTS-test\.venv\Lib\site-packages\transformers\models\hubert\modeling_hubert.py with huggingface_hub
Browse files
edit//Qwen3-TTS-test//.venv//Lib//site-packages//transformers//models//hubert//modeling_hubert.py
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|
| 1 |
+
# 🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨
|
| 2 |
+
# This file was automatically generated from src/transformers/models/hubert/modular_hubert.py.
|
| 3 |
+
# Do NOT edit this file manually as any edits will be overwritten by the generation of
|
| 4 |
+
# the file from the modular. If any change should be done, please apply the change to the
|
| 5 |
+
# modular_hubert.py file directly. One of our CI enforces this.
|
| 6 |
+
# 🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨🚨
|
| 7 |
+
# coding=utf-8
|
| 8 |
+
# Copyright 2021 The Fairseq Authors and the HuggingFace Inc. team. All rights reserved.
|
| 9 |
+
#
|
| 10 |
+
# Licensed under the Apache License, Version 2.0 (the "License");
|
| 11 |
+
# you may not use this file except in compliance with the License.
|
| 12 |
+
# You may obtain a copy of the License at
|
| 13 |
+
#
|
| 14 |
+
# http://www.apache.org/licenses/LICENSE-2.0
|
| 15 |
+
#
|
| 16 |
+
# Unless required by applicable law or agreed to in writing, software
|
| 17 |
+
# distributed under the License is distributed on an "AS IS" BASIS,
|
| 18 |
+
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
| 19 |
+
# See the License for the specific language governing permissions and
|
| 20 |
+
# limitations under the License.
|
| 21 |
+
|
| 22 |
+
import warnings
|
| 23 |
+
from typing import Callable, Optional, Union
|
| 24 |
+
|
| 25 |
+
import numpy as np
|
| 26 |
+
import torch
|
| 27 |
+
import torch.nn as nn
|
| 28 |
+
from torch.nn import CrossEntropyLoss
|
| 29 |
+
|
| 30 |
+
from ...activations import ACT2FN
|
| 31 |
+
from ...integrations.deepspeed import is_deepspeed_zero3_enabled
|
| 32 |
+
from ...integrations.fsdp import is_fsdp_managed_module
|
| 33 |
+
from ...modeling_attn_mask_utils import _prepare_4d_attention_mask, _prepare_4d_attention_mask_for_sdpa
|
| 34 |
+
from ...modeling_flash_attention_utils import FlashAttentionKwargs
|
| 35 |
+
from ...modeling_layers import GradientCheckpointingLayer
|
| 36 |
+
from ...modeling_outputs import BaseModelOutput, CausalLMOutput, SequenceClassifierOutput
|
| 37 |
+
from ...modeling_utils import ALL_ATTENTION_FUNCTIONS, PreTrainedModel
|
| 38 |
+
from ...processing_utils import Unpack
|
| 39 |
+
from ...utils import auto_docstring, is_torch_flex_attn_available, logging
|
| 40 |
+
from .configuration_hubert import HubertConfig
|
| 41 |
+
|
| 42 |
+
|
| 43 |
+
if is_torch_flex_attn_available():
|
| 44 |
+
from ...integrations.flex_attention import make_flex_block_causal_mask
|
| 45 |
+
|
| 46 |
+
|
| 47 |
+
logger = logging.get_logger(__name__)
|
| 48 |
+
|
| 49 |
+
|
| 50 |
+
class HubertPositionalConvEmbedding(nn.Module):
|
| 51 |
+
def __init__(self, config):
|
| 52 |
+
super().__init__()
|
| 53 |
+
self.conv = nn.Conv1d(
|
| 54 |
+
config.hidden_size,
|
| 55 |
+
config.hidden_size,
|
| 56 |
+
kernel_size=config.num_conv_pos_embeddings,
|
| 57 |
+
padding=config.num_conv_pos_embeddings // 2,
|
| 58 |
+
groups=config.num_conv_pos_embedding_groups,
|
| 59 |
+
)
|
| 60 |
+
|
| 61 |
+
self.batch_norm = None
|
| 62 |
+
if config.conv_pos_batch_norm:
|
| 63 |
+
self.batch_norm = nn.BatchNorm1d(config.hidden_size)
|
| 64 |
+
else:
|
| 65 |
+
weight_norm = nn.utils.weight_norm
|
| 66 |
+
if hasattr(nn.utils.parametrizations, "weight_norm"):
|
| 67 |
+
weight_norm = nn.utils.parametrizations.weight_norm
|
| 68 |
+
|
| 69 |
+
if is_deepspeed_zero3_enabled():
|
| 70 |
+
import deepspeed
|
| 71 |
+
|
| 72 |
+
with deepspeed.zero.GatheredParameters(self.conv.weight, modifier_rank=0):
|
| 73 |
+
self.conv = weight_norm(self.conv, name="weight", dim=2)
|
| 74 |
+
if hasattr(self.conv, "parametrizations"):
|
| 75 |
+
weight_g = self.conv.parametrizations.weight.original0
|
| 76 |
+
weight_v = self.conv.parametrizations.weight.original1
|
| 77 |
+
else:
|
| 78 |
+
weight_g = self.conv.weight_g
|
| 79 |
+
weight_v = self.conv.weight_v
|
| 80 |
+
deepspeed.zero.register_external_parameter(self, weight_v)
|
| 81 |
+
deepspeed.zero.register_external_parameter(self, weight_g)
|
| 82 |
+
else:
|
| 83 |
+
self.conv = weight_norm(self.conv, name="weight", dim=2)
|
| 84 |
+
|
| 85 |
+
self.padding = HubertSamePadLayer(config.num_conv_pos_embeddings)
|
| 86 |
+
self.activation = ACT2FN[config.feat_extract_activation]
|
| 87 |
+
|
| 88 |
+
def forward(self, hidden_states):
|
| 89 |
+
hidden_states = hidden_states.transpose(1, 2)
|
| 90 |
+
if self.batch_norm is not None:
|
| 91 |
+
hidden_states = self.batch_norm(hidden_states)
|
| 92 |
+
hidden_states = self.conv(hidden_states)
|
| 93 |
+
hidden_states = self.padding(hidden_states)
|
| 94 |
+
hidden_states = self.activation(hidden_states)
|
| 95 |
+
|
| 96 |
+
hidden_states = hidden_states.transpose(1, 2)
|
| 97 |
+
return hidden_states
|
| 98 |
+
|
| 99 |
+
|
| 100 |
+
class HubertSamePadLayer(nn.Module):
|
| 101 |
+
def __init__(self, num_conv_pos_embeddings):
|
| 102 |
+
super().__init__()
|
| 103 |
+
self.num_pad_remove = 1 if num_conv_pos_embeddings % 2 == 0 else 0
|
| 104 |
+
|
| 105 |
+
def forward(self, hidden_states):
|
| 106 |
+
if self.num_pad_remove > 0:
|
| 107 |
+
hidden_states = hidden_states[:, :, : -self.num_pad_remove]
|
| 108 |
+
return hidden_states
|
| 109 |
+
|
| 110 |
+
|
| 111 |
+
class HubertNoLayerNormConvLayer(GradientCheckpointingLayer):
|
| 112 |
+
def __init__(self, config, layer_id=0):
|
| 113 |
+
super().__init__()
|
| 114 |
+
self.in_conv_dim = config.conv_dim[layer_id - 1] if layer_id > 0 else 1
|
| 115 |
+
self.out_conv_dim = config.conv_dim[layer_id]
|
| 116 |
+
|
| 117 |
+
self.conv = nn.Conv1d(
|
| 118 |
+
self.in_conv_dim,
|
| 119 |
+
self.out_conv_dim,
|
| 120 |
+
kernel_size=config.conv_kernel[layer_id],
|
| 121 |
+
stride=config.conv_stride[layer_id],
|
| 122 |
+
bias=config.conv_bias,
|
| 123 |
+
)
|
| 124 |
+
self.activation = ACT2FN[config.feat_extract_activation]
|
| 125 |
+
|
| 126 |
+
def forward(self, hidden_states):
|
| 127 |
+
hidden_states = self.conv(hidden_states)
|
| 128 |
+
hidden_states = self.activation(hidden_states)
|
| 129 |
+
return hidden_states
|
| 130 |
+
|
| 131 |
+
|
| 132 |
+
class HubertLayerNormConvLayer(GradientCheckpointingLayer):
|
| 133 |
+
def __init__(self, config, layer_id=0):
|
| 134 |
+
super().__init__()
|
| 135 |
+
self.in_conv_dim = config.conv_dim[layer_id - 1] if layer_id > 0 else 1
|
| 136 |
+
self.out_conv_dim = config.conv_dim[layer_id]
|
| 137 |
+
|
| 138 |
+
self.conv = nn.Conv1d(
|
| 139 |
+
self.in_conv_dim,
|
| 140 |
+
self.out_conv_dim,
|
| 141 |
+
kernel_size=config.conv_kernel[layer_id],
|
| 142 |
+
stride=config.conv_stride[layer_id],
|
| 143 |
+
bias=config.conv_bias,
|
| 144 |
+
)
|
| 145 |
+
self.layer_norm = nn.LayerNorm(self.out_conv_dim, elementwise_affine=True)
|
| 146 |
+
self.activation = ACT2FN[config.feat_extract_activation]
|
| 147 |
+
|
| 148 |
+
def forward(self, hidden_states):
|
| 149 |
+
hidden_states = self.conv(hidden_states)
|
| 150 |
+
|
| 151 |
+
hidden_states = hidden_states.transpose(-2, -1)
|
| 152 |
+
hidden_states = self.layer_norm(hidden_states)
|
| 153 |
+
hidden_states = hidden_states.transpose(-2, -1)
|
| 154 |
+
|
| 155 |
+
hidden_states = self.activation(hidden_states)
|
| 156 |
+
return hidden_states
|
| 157 |
+
|
| 158 |
+
|
| 159 |
+
class HubertGroupNormConvLayer(GradientCheckpointingLayer):
|
| 160 |
+
def __init__(self, config, layer_id=0):
|
| 161 |
+
super().__init__()
|
| 162 |
+
self.in_conv_dim = config.conv_dim[layer_id - 1] if layer_id > 0 else 1
|
| 163 |
+
self.out_conv_dim = config.conv_dim[layer_id]
|
| 164 |
+
|
| 165 |
+
self.conv = nn.Conv1d(
|
| 166 |
+
self.in_conv_dim,
|
| 167 |
+
self.out_conv_dim,
|
| 168 |
+
kernel_size=config.conv_kernel[layer_id],
|
| 169 |
+
stride=config.conv_stride[layer_id],
|
| 170 |
+
bias=config.conv_bias,
|
| 171 |
+
)
|
| 172 |
+
self.activation = ACT2FN[config.feat_extract_activation]
|
| 173 |
+
|
| 174 |
+
self.layer_norm = nn.GroupNorm(num_groups=self.out_conv_dim, num_channels=self.out_conv_dim, affine=True)
|
| 175 |
+
|
| 176 |
+
def forward(self, hidden_states):
|
| 177 |
+
hidden_states = self.conv(hidden_states)
|
| 178 |
+
hidden_states = self.layer_norm(hidden_states)
|
| 179 |
+
hidden_states = self.activation(hidden_states)
|
| 180 |
+
return hidden_states
|
| 181 |
+
|
| 182 |
+
|
| 183 |
+
class HubertFeatureEncoder(nn.Module):
|
| 184 |
+
"""Construct the features from raw audio waveform"""
|
| 185 |
+
|
| 186 |
+
def __init__(self, config):
|
| 187 |
+
super().__init__()
|
| 188 |
+
|
| 189 |
+
if config.feat_extract_norm == "group":
|
| 190 |
+
conv_layers = [HubertGroupNormConvLayer(config, layer_id=0)] + [
|
| 191 |
+
HubertNoLayerNormConvLayer(config, layer_id=i + 1) for i in range(config.num_feat_extract_layers - 1)
|
| 192 |
+
]
|
| 193 |
+
elif config.feat_extract_norm == "layer":
|
| 194 |
+
conv_layers = [HubertLayerNormConvLayer(config, layer_id=i) for i in range(config.num_feat_extract_layers)]
|
| 195 |
+
else:
|
| 196 |
+
raise ValueError(
|
| 197 |
+
f"`config.feat_extract_norm` is {config.feat_extract_norm}, but has to be one of ['group', 'layer']"
|
| 198 |
+
)
|
| 199 |
+
self.conv_layers = nn.ModuleList(conv_layers)
|
| 200 |
+
self.gradient_checkpointing = False
|
| 201 |
+
self._requires_grad = True
|
| 202 |
+
|
| 203 |
+
def _freeze_parameters(self):
|
| 204 |
+
for param in self.parameters():
|
| 205 |
+
param.requires_grad = False
|
| 206 |
+
self._requires_grad = False
|
| 207 |
+
|
| 208 |
+
def forward(self, input_values):
|
| 209 |
+
hidden_states = input_values[:, None]
|
| 210 |
+
|
| 211 |
+
# make sure hidden_states require grad for gradient_checkpointing
|
| 212 |
+
if self._requires_grad and self.training:
|
| 213 |
+
hidden_states.requires_grad = True
|
| 214 |
+
|
| 215 |
+
for conv_layer in self.conv_layers:
|
| 216 |
+
hidden_states = conv_layer(hidden_states)
|
| 217 |
+
|
| 218 |
+
return hidden_states
|
| 219 |
+
|
| 220 |
+
|
| 221 |
+
class HubertFeatureProjection(nn.Module):
|
| 222 |
+
def __init__(self, config):
|
| 223 |
+
super().__init__()
|
| 224 |
+
self.feat_proj_layer_norm = config.feat_proj_layer_norm
|
| 225 |
+
if self.feat_proj_layer_norm:
|
| 226 |
+
self.layer_norm = nn.LayerNorm(config.conv_dim[-1], eps=config.layer_norm_eps)
|
| 227 |
+
self.projection = nn.Linear(config.conv_dim[-1], config.hidden_size)
|
| 228 |
+
self.dropout = nn.Dropout(config.feat_proj_dropout)
|
| 229 |
+
|
| 230 |
+
def forward(self, hidden_states):
|
| 231 |
+
# non-projected hidden states are needed for quantization
|
| 232 |
+
if self.feat_proj_layer_norm:
|
| 233 |
+
hidden_states = self.layer_norm(hidden_states)
|
| 234 |
+
hidden_states = self.projection(hidden_states)
|
| 235 |
+
hidden_states = self.dropout(hidden_states)
|
| 236 |
+
return hidden_states
|
| 237 |
+
|
| 238 |
+
|
| 239 |
+
def eager_attention_forward(
|
| 240 |
+
module: nn.Module,
|
| 241 |
+
query: torch.Tensor,
|
| 242 |
+
key: torch.Tensor,
|
| 243 |
+
value: torch.Tensor,
|
| 244 |
+
attention_mask: Optional[torch.Tensor],
|
| 245 |
+
scaling: Optional[float] = None,
|
| 246 |
+
dropout: float = 0.0,
|
| 247 |
+
head_mask: Optional[torch.Tensor] = None,
|
| 248 |
+
**kwargs,
|
| 249 |
+
):
|
| 250 |
+
if scaling is None:
|
| 251 |
+
scaling = query.size(-1) ** -0.5
|
| 252 |
+
|
| 253 |
+
attn_weights = torch.matmul(query, key.transpose(2, 3)) * scaling
|
| 254 |
+
if attention_mask is not None:
|
| 255 |
+
attn_weights = attn_weights + attention_mask
|
| 256 |
+
|
| 257 |
+
attn_weights = nn.functional.softmax(attn_weights, dim=-1)
|
| 258 |
+
|
| 259 |
+
if head_mask is not None:
|
| 260 |
+
attn_weights = attn_weights * head_mask.view(1, -1, 1, 1)
|
| 261 |
+
|
| 262 |
+
attn_weights = nn.functional.dropout(attn_weights, p=dropout, training=module.training)
|
| 263 |
+
attn_output = torch.matmul(attn_weights, value)
|
| 264 |
+
attn_output = attn_output.transpose(1, 2).contiguous()
|
| 265 |
+
|
| 266 |
+
return attn_output, attn_weights
|
| 267 |
+
|
| 268 |
+
|
| 269 |
+
class HubertAttention(nn.Module):
|
| 270 |
+
"""Multi-headed attention from 'Attention Is All You Need' paper"""
|
| 271 |
+
|
| 272 |
+
def __init__(
|
| 273 |
+
self,
|
| 274 |
+
embed_dim: int,
|
| 275 |
+
num_heads: int,
|
| 276 |
+
dropout: float = 0.0,
|
| 277 |
+
is_decoder: bool = False,
|
| 278 |
+
bias: bool = True,
|
| 279 |
+
is_causal: bool = False,
|
| 280 |
+
config: Optional[HubertConfig] = None,
|
| 281 |
+
):
|
| 282 |
+
super().__init__()
|
| 283 |
+
self.embed_dim = embed_dim
|
| 284 |
+
self.num_heads = num_heads
|
| 285 |
+
self.dropout = dropout
|
| 286 |
+
self.head_dim = embed_dim // num_heads
|
| 287 |
+
self.config = config
|
| 288 |
+
|
| 289 |
+
if (self.head_dim * num_heads) != self.embed_dim:
|
| 290 |
+
raise ValueError(
|
| 291 |
+
f"embed_dim must be divisible by num_heads (got `embed_dim`: {self.embed_dim}"
|
| 292 |
+
f" and `num_heads`: {num_heads})."
|
| 293 |
+
)
|
| 294 |
+
self.scaling = self.head_dim**-0.5
|
| 295 |
+
self.is_decoder = is_decoder
|
| 296 |
+
self.is_causal = is_causal
|
| 297 |
+
|
| 298 |
+
self.k_proj = nn.Linear(embed_dim, embed_dim, bias=bias)
|
| 299 |
+
self.v_proj = nn.Linear(embed_dim, embed_dim, bias=bias)
|
| 300 |
+
self.q_proj = nn.Linear(embed_dim, embed_dim, bias=bias)
|
| 301 |
+
self.out_proj = nn.Linear(embed_dim, embed_dim, bias=bias)
|
| 302 |
+
|
| 303 |
+
def forward(
|
| 304 |
+
self,
|
| 305 |
+
hidden_states: torch.Tensor,
|
| 306 |
+
key_value_states: Optional[torch.Tensor] = None,
|
| 307 |
+
attention_mask: Optional[torch.Tensor] = None,
|
| 308 |
+
layer_head_mask: Optional[torch.Tensor] = None,
|
| 309 |
+
output_attentions: Optional[bool] = False,
|
| 310 |
+
# TODO: we need a refactor so that the different attention modules can get their specific kwargs
|
| 311 |
+
# ATM, we have mixed things encoder, decoder, and encoder-decoder attn
|
| 312 |
+
**kwargs: Unpack[FlashAttentionKwargs],
|
| 313 |
+
) -> tuple[torch.Tensor, Optional[torch.Tensor], Optional[tuple[torch.Tensor]]]:
|
| 314 |
+
"""Input shape: Batch x Time x Channel"""
|
| 315 |
+
|
| 316 |
+
# if key_value_states are provided this layer is used as a cross-attention layer
|
| 317 |
+
# for the decoder
|
| 318 |
+
is_cross_attention = key_value_states is not None
|
| 319 |
+
|
| 320 |
+
# determine input shapes
|
| 321 |
+
bsz, tgt_len = hidden_states.shape[:-1]
|
| 322 |
+
src_len = key_value_states.shape[1] if is_cross_attention else tgt_len
|
| 323 |
+
|
| 324 |
+
q_input_shape = (bsz, tgt_len, -1, self.head_dim)
|
| 325 |
+
kv_input_shape = (bsz, src_len, -1, self.head_dim)
|
| 326 |
+
|
| 327 |
+
# get query proj
|
| 328 |
+
query_states = self.q_proj(hidden_states).view(*q_input_shape).transpose(1, 2)
|
| 329 |
+
|
| 330 |
+
current_states = key_value_states if is_cross_attention else hidden_states
|
| 331 |
+
key_states = self.k_proj(current_states).view(*kv_input_shape).transpose(1, 2)
|
| 332 |
+
value_states = self.v_proj(current_states).view(*kv_input_shape).transpose(1, 2)
|
| 333 |
+
|
| 334 |
+
attention_interface: Callable = eager_attention_forward
|
| 335 |
+
if self.config._attn_implementation != "eager":
|
| 336 |
+
attention_interface = ALL_ATTENTION_FUNCTIONS[self.config._attn_implementation]
|
| 337 |
+
|
| 338 |
+
attn_output, attn_weights = attention_interface(
|
| 339 |
+
self,
|
| 340 |
+
query_states,
|
| 341 |
+
key_states,
|
| 342 |
+
value_states,
|
| 343 |
+
attention_mask,
|
| 344 |
+
dropout=0.0 if not self.training else self.dropout,
|
| 345 |
+
scaling=self.scaling,
|
| 346 |
+
output_attentions=output_attentions,
|
| 347 |
+
head_mask=layer_head_mask,
|
| 348 |
+
**kwargs,
|
| 349 |
+
)
|
| 350 |
+
|
| 351 |
+
attn_output = attn_output.reshape(bsz, tgt_len, -1).contiguous()
|
| 352 |
+
attn_output = self.out_proj(attn_output)
|
| 353 |
+
|
| 354 |
+
return attn_output, attn_weights, None
|
| 355 |
+
|
| 356 |
+
|
| 357 |
+
class HubertFeedForward(nn.Module):
|
| 358 |
+
def __init__(self, config):
|
| 359 |
+
super().__init__()
|
| 360 |
+
self.intermediate_dropout = nn.Dropout(config.activation_dropout)
|
| 361 |
+
|
| 362 |
+
self.intermediate_dense = nn.Linear(config.hidden_size, config.intermediate_size)
|
| 363 |
+
if isinstance(config.hidden_act, str):
|
| 364 |
+
self.intermediate_act_fn = ACT2FN[config.hidden_act]
|
| 365 |
+
else:
|
| 366 |
+
self.intermediate_act_fn = config.hidden_act
|
| 367 |
+
|
| 368 |
+
self.output_dense = nn.Linear(config.intermediate_size, config.hidden_size)
|
| 369 |
+
self.output_dropout = nn.Dropout(config.hidden_dropout)
|
| 370 |
+
|
| 371 |
+
def forward(self, hidden_states):
|
| 372 |
+
hidden_states = self.intermediate_dense(hidden_states)
|
| 373 |
+
hidden_states = self.intermediate_act_fn(hidden_states)
|
| 374 |
+
hidden_states = self.intermediate_dropout(hidden_states)
|
| 375 |
+
|
| 376 |
+
hidden_states = self.output_dense(hidden_states)
|
| 377 |
+
hidden_states = self.output_dropout(hidden_states)
|
| 378 |
+
return hidden_states
|
| 379 |
+
|
| 380 |
+
|
| 381 |
+
class HubertEncoderLayer(GradientCheckpointingLayer):
|
| 382 |
+
def __init__(self, config):
|
| 383 |
+
super().__init__()
|
| 384 |
+
self.attention = HubertAttention(
|
| 385 |
+
embed_dim=config.hidden_size,
|
| 386 |
+
num_heads=config.num_attention_heads,
|
| 387 |
+
dropout=config.attention_dropout,
|
| 388 |
+
is_decoder=False,
|
| 389 |
+
config=config,
|
| 390 |
+
)
|
| 391 |
+
|
| 392 |
+
self.dropout = nn.Dropout(config.hidden_dropout)
|
| 393 |
+
self.layer_norm = nn.LayerNorm(config.hidden_size, eps=config.layer_norm_eps)
|
| 394 |
+
self.feed_forward = HubertFeedForward(config)
|
| 395 |
+
self.final_layer_norm = nn.LayerNorm(config.hidden_size, eps=config.layer_norm_eps)
|
| 396 |
+
|
| 397 |
+
def forward(self, hidden_states, attention_mask=None, output_attentions=False):
|
| 398 |
+
attn_residual = hidden_states
|
| 399 |
+
hidden_states, attn_weights, _ = self.attention(
|
| 400 |
+
hidden_states, attention_mask=attention_mask, output_attentions=output_attentions
|
| 401 |
+
)
|
| 402 |
+
hidden_states = self.dropout(hidden_states)
|
| 403 |
+
hidden_states = attn_residual + hidden_states
|
| 404 |
+
|
| 405 |
+
hidden_states = self.layer_norm(hidden_states)
|
| 406 |
+
hidden_states = hidden_states + self.feed_forward(hidden_states)
|
| 407 |
+
hidden_states = self.final_layer_norm(hidden_states)
|
| 408 |
+
|
| 409 |
+
outputs = (hidden_states,)
|
| 410 |
+
|
| 411 |
+
if output_attentions:
|
| 412 |
+
outputs += (attn_weights,)
|
| 413 |
+
|
| 414 |
+
return outputs
|
| 415 |
+
|
| 416 |
+
|
| 417 |
+
class HubertEncoder(nn.Module):
|
| 418 |
+
def __init__(self, config):
|
| 419 |
+
super().__init__()
|
| 420 |
+
self.config = config
|
| 421 |
+
self.pos_conv_embed = HubertPositionalConvEmbedding(config)
|
| 422 |
+
self.layer_norm = nn.LayerNorm(config.hidden_size, eps=config.layer_norm_eps)
|
| 423 |
+
self.dropout = nn.Dropout(config.hidden_dropout)
|
| 424 |
+
self.layers = nn.ModuleList([HubertEncoderLayer(config) for _ in range(config.num_hidden_layers)])
|
| 425 |
+
self.gradient_checkpointing = False
|
| 426 |
+
|
| 427 |
+
def forward(
|
| 428 |
+
self,
|
| 429 |
+
hidden_states: torch.tensor,
|
| 430 |
+
attention_mask: Optional[torch.Tensor] = None,
|
| 431 |
+
output_attentions: bool = False,
|
| 432 |
+
output_hidden_states: bool = False,
|
| 433 |
+
return_dict: bool = True,
|
| 434 |
+
):
|
| 435 |
+
all_hidden_states = () if output_hidden_states else None
|
| 436 |
+
all_self_attentions = () if output_attentions else None
|
| 437 |
+
|
| 438 |
+
if attention_mask is not None:
|
| 439 |
+
# make sure padded tokens output 0
|
| 440 |
+
expand_attention_mask = attention_mask.unsqueeze(-1).repeat(1, 1, hidden_states.shape[2])
|
| 441 |
+
hidden_states[~expand_attention_mask] = 0
|
| 442 |
+
|
| 443 |
+
attention_mask = self._update_full_mask(
|
| 444 |
+
attention_mask,
|
| 445 |
+
hidden_states,
|
| 446 |
+
)
|
| 447 |
+
|
| 448 |
+
position_embeddings = self.pos_conv_embed(hidden_states)
|
| 449 |
+
hidden_states = hidden_states + position_embeddings
|
| 450 |
+
hidden_states = self.layer_norm(hidden_states)
|
| 451 |
+
hidden_states = self.dropout(hidden_states)
|
| 452 |
+
|
| 453 |
+
synced_gpus = is_deepspeed_zero3_enabled() or is_fsdp_managed_module(self)
|
| 454 |
+
|
| 455 |
+
for layer in self.layers:
|
| 456 |
+
if output_hidden_states:
|
| 457 |
+
all_hidden_states = all_hidden_states + (hidden_states,)
|
| 458 |
+
|
| 459 |
+
# add LayerDrop (see https://huggingface.co/papers/1909.11556 for description)
|
| 460 |
+
dropout_probability = torch.rand([])
|
| 461 |
+
|
| 462 |
+
skip_the_layer = self.training and dropout_probability < self.config.layerdrop
|
| 463 |
+
if not skip_the_layer or synced_gpus:
|
| 464 |
+
# under fsdp or deepspeed zero3 all gpus must run in sync
|
| 465 |
+
layer_outputs = layer(
|
| 466 |
+
hidden_states, attention_mask=attention_mask, output_attentions=output_attentions
|
| 467 |
+
)
|
| 468 |
+
hidden_states = layer_outputs[0]
|
| 469 |
+
|
| 470 |
+
if skip_the_layer:
|
| 471 |
+
layer_outputs = (None, None)
|
| 472 |
+
|
| 473 |
+
if output_attentions:
|
| 474 |
+
all_self_attentions = all_self_attentions + (layer_outputs[1],)
|
| 475 |
+
|
| 476 |
+
if output_hidden_states:
|
| 477 |
+
all_hidden_states = all_hidden_states + (hidden_states,)
|
| 478 |
+
|
| 479 |
+
if not return_dict:
|
| 480 |
+
return tuple(v for v in [hidden_states, all_hidden_states, all_self_attentions] if v is not None)
|
| 481 |
+
return BaseModelOutput(
|
| 482 |
+
last_hidden_state=hidden_states,
|
| 483 |
+
hidden_states=all_hidden_states,
|
| 484 |
+
attentions=all_self_attentions,
|
| 485 |
+
)
|
| 486 |
+
|
| 487 |
+
def _update_full_mask(
|
| 488 |
+
self,
|
| 489 |
+
attention_mask: Union[torch.Tensor, None],
|
| 490 |
+
inputs_embeds: torch.Tensor,
|
| 491 |
+
):
|
| 492 |
+
if attention_mask is not None:
|
| 493 |
+
if self.config._attn_implementation == "flash_attention_2":
|
| 494 |
+
attention_mask = attention_mask if 0 in attention_mask else None
|
| 495 |
+
elif self.config._attn_implementation == "sdpa":
|
| 496 |
+
# output_attentions=True & head_mask can not be supported when using SDPA, fall back to
|
| 497 |
+
# the manual implementation that requires a 4D causal mask in all cases.
|
| 498 |
+
# [bsz, seq_len] -> [bsz, 1, tgt_seq_len, src_seq_len]
|
| 499 |
+
attention_mask = _prepare_4d_attention_mask_for_sdpa(attention_mask, inputs_embeds.dtype)
|
| 500 |
+
elif self.config._attn_implementation == "flex_attention":
|
| 501 |
+
if isinstance(attention_mask, torch.Tensor):
|
| 502 |
+
attention_mask = make_flex_block_causal_mask(attention_mask, is_causal=False)
|
| 503 |
+
else:
|
| 504 |
+
# [bsz, seq_len] -> [bsz, 1, tgt_seq_len, src_seq_len]
|
| 505 |
+
attention_mask = _prepare_4d_attention_mask(attention_mask, inputs_embeds.dtype)
|
| 506 |
+
|
| 507 |
+
return attention_mask
|
| 508 |
+
|
| 509 |
+
|
| 510 |
+
class HubertAttnAdapterLayer(nn.Module):
|
| 511 |
+
def __init__(self, config):
|
| 512 |
+
"""
|
| 513 |
+
Implements adapter modules directly with 3D tensor weight as parameters and without using ModuleList to speed
|
| 514 |
+
up training throughput.
|
| 515 |
+
"""
|
| 516 |
+
super().__init__()
|
| 517 |
+
self.input_dim = config.adapter_attn_dim
|
| 518 |
+
self.hidden_dim = config.hidden_size
|
| 519 |
+
|
| 520 |
+
self.norm = nn.LayerNorm(self.hidden_dim)
|
| 521 |
+
self.linear_1 = nn.Linear(self.hidden_dim, self.input_dim)
|
| 522 |
+
self.act_fn = nn.ReLU()
|
| 523 |
+
self.linear_2 = nn.Linear(self.input_dim, self.hidden_dim)
|
| 524 |
+
|
| 525 |
+
def forward(self, hidden_states: torch.FloatTensor):
|
| 526 |
+
hidden_states = self.norm(hidden_states)
|
| 527 |
+
|
| 528 |
+
hidden_states = self.linear_1(hidden_states)
|
| 529 |
+
hidden_states = self.act_fn(hidden_states)
|
| 530 |
+
hidden_states = self.linear_2(hidden_states)
|
| 531 |
+
|
| 532 |
+
return hidden_states
|
| 533 |
+
|
| 534 |
+
|
| 535 |
+
class HubertEncoderLayerStableLayerNorm(GradientCheckpointingLayer):
|
| 536 |
+
def __init__(self, config):
|
| 537 |
+
super().__init__()
|
| 538 |
+
self.attention = HubertAttention(
|
| 539 |
+
embed_dim=config.hidden_size,
|
| 540 |
+
num_heads=config.num_attention_heads,
|
| 541 |
+
dropout=config.attention_dropout,
|
| 542 |
+
is_decoder=False,
|
| 543 |
+
config=config,
|
| 544 |
+
)
|
| 545 |
+
self.dropout = nn.Dropout(config.hidden_dropout)
|
| 546 |
+
self.layer_norm = nn.LayerNorm(config.hidden_size, eps=config.layer_norm_eps)
|
| 547 |
+
self.feed_forward = HubertFeedForward(config)
|
| 548 |
+
self.final_layer_norm = nn.LayerNorm(config.hidden_size, eps=config.layer_norm_eps)
|
| 549 |
+
|
| 550 |
+
if getattr(config, "adapter_attn_dim", None) is not None:
|
| 551 |
+
self.adapter_layer = HubertAttnAdapterLayer(config)
|
| 552 |
+
else:
|
| 553 |
+
self.adapter_layer = None
|
| 554 |
+
|
| 555 |
+
def forward(
|
| 556 |
+
self,
|
| 557 |
+
hidden_states: torch.Tensor,
|
| 558 |
+
attention_mask: Optional[torch.Tensor] = None,
|
| 559 |
+
output_attentions: bool = False,
|
| 560 |
+
):
|
| 561 |
+
attn_residual = hidden_states
|
| 562 |
+
hidden_states = self.layer_norm(hidden_states)
|
| 563 |
+
hidden_states, attn_weights, _ = self.attention(
|
| 564 |
+
hidden_states, attention_mask=attention_mask, output_attentions=output_attentions
|
| 565 |
+
)
|
| 566 |
+
hidden_states = self.dropout(hidden_states)
|
| 567 |
+
hidden_states = attn_residual + hidden_states
|
| 568 |
+
hidden_states = hidden_states + self.feed_forward(self.final_layer_norm(hidden_states))
|
| 569 |
+
|
| 570 |
+
if self.adapter_layer is not None:
|
| 571 |
+
hidden_states = hidden_states + self.adapter_layer(hidden_states)
|
| 572 |
+
|
| 573 |
+
outputs = (hidden_states,)
|
| 574 |
+
|
| 575 |
+
if output_attentions:
|
| 576 |
+
outputs += (attn_weights,)
|
| 577 |
+
|
| 578 |
+
return outputs
|
| 579 |
+
|
| 580 |
+
|
| 581 |
+
class HubertEncoderStableLayerNorm(nn.Module):
|
| 582 |
+
def __init__(self, config):
|
| 583 |
+
super().__init__()
|
| 584 |
+
self.config = config
|
| 585 |
+
self.pos_conv_embed = HubertPositionalConvEmbedding(config)
|
| 586 |
+
self.layer_norm = nn.LayerNorm(config.hidden_size, eps=config.layer_norm_eps)
|
| 587 |
+
self.dropout = nn.Dropout(config.hidden_dropout)
|
| 588 |
+
self.layers = nn.ModuleList(
|
| 589 |
+
[HubertEncoderLayerStableLayerNorm(config) for _ in range(config.num_hidden_layers)]
|
| 590 |
+
)
|
| 591 |
+
self.gradient_checkpointing = False
|
| 592 |
+
|
| 593 |
+
def forward(
|
| 594 |
+
self,
|
| 595 |
+
hidden_states,
|
| 596 |
+
attention_mask=None,
|
| 597 |
+
output_attentions=False,
|
| 598 |
+
output_hidden_states=False,
|
| 599 |
+
return_dict=True,
|
| 600 |
+
):
|
| 601 |
+
all_hidden_states = () if output_hidden_states else None
|
| 602 |
+
all_self_attentions = () if output_attentions else None
|
| 603 |
+
|
| 604 |
+
if attention_mask is not None:
|
| 605 |
+
# make sure padded tokens output 0
|
| 606 |
+
expand_attention_mask = attention_mask.unsqueeze(-1).repeat(1, 1, hidden_states.shape[2])
|
| 607 |
+
hidden_states[~expand_attention_mask] = 0
|
| 608 |
+
|
| 609 |
+
attention_mask = self._update_full_mask(
|
| 610 |
+
attention_mask,
|
| 611 |
+
hidden_states,
|
| 612 |
+
)
|
| 613 |
+
|
| 614 |
+
position_embeddings = self.pos_conv_embed(hidden_states)
|
| 615 |
+
hidden_states = hidden_states + position_embeddings
|
| 616 |
+
hidden_states = self.dropout(hidden_states)
|
| 617 |
+
|
| 618 |
+
synced_gpus = is_deepspeed_zero3_enabled() or is_fsdp_managed_module(self)
|
| 619 |
+
|
| 620 |
+
for layer in self.layers:
|
| 621 |
+
if output_hidden_states:
|
| 622 |
+
all_hidden_states = all_hidden_states + (hidden_states,)
|
| 623 |
+
|
| 624 |
+
# add LayerDrop (see https://huggingface.co/papers/1909.11556 for description)
|
| 625 |
+
dropout_probability = torch.rand([])
|
| 626 |
+
|
| 627 |
+
skip_the_layer = self.training and dropout_probability < self.config.layerdrop
|
| 628 |
+
if not skip_the_layer or synced_gpus:
|
| 629 |
+
# under fsdp or deepspeed zero3 all gpus must run in sync
|
| 630 |
+
# XXX: could optimize this like synced_gpus in generate_utils but not sure if it's worth the code complication
|
| 631 |
+
layer_outputs = layer(
|
| 632 |
+
hidden_states, attention_mask=attention_mask, output_attentions=output_attentions
|
| 633 |
+
)
|
| 634 |
+
hidden_states = layer_outputs[0]
|
| 635 |
+
|
| 636 |
+
if skip_the_layer:
|
| 637 |
+
layer_outputs = (None, None)
|
| 638 |
+
|
| 639 |
+
if output_attentions:
|
| 640 |
+
all_self_attentions = all_self_attentions + (layer_outputs[1],)
|
| 641 |
+
|
| 642 |
+
hidden_states = self.layer_norm(hidden_states)
|
| 643 |
+
|
| 644 |
+
if output_hidden_states:
|
| 645 |
+
all_hidden_states = all_hidden_states + (hidden_states,)
|
| 646 |
+
|
| 647 |
+
if not return_dict:
|
| 648 |
+
return tuple(v for v in [hidden_states, all_hidden_states, all_self_attentions] if v is not None)
|
| 649 |
+
return BaseModelOutput(
|
| 650 |
+
last_hidden_state=hidden_states,
|
| 651 |
+
hidden_states=all_hidden_states,
|
| 652 |
+
attentions=all_self_attentions,
|
| 653 |
+
)
|
| 654 |
+
|
| 655 |
+
def _update_full_mask(
|
| 656 |
+
self,
|
| 657 |
+
attention_mask: Union[torch.Tensor, None],
|
| 658 |
+
inputs_embeds: torch.Tensor,
|
| 659 |
+
):
|
| 660 |
+
if attention_mask is not None:
|
| 661 |
+
if self.config._attn_implementation == "flash_attention_2":
|
| 662 |
+
attention_mask = attention_mask if 0 in attention_mask else None
|
| 663 |
+
elif self.config._attn_implementation == "sdpa":
|
| 664 |
+
# output_attentions=True & head_mask can not be supported when using SDPA, fall back to
|
| 665 |
+
# the manual implementation that requires a 4D causal mask in all cases.
|
| 666 |
+
# [bsz, seq_len] -> [bsz, 1, tgt_seq_len, src_seq_len]
|
| 667 |
+
attention_mask = _prepare_4d_attention_mask_for_sdpa(attention_mask, inputs_embeds.dtype)
|
| 668 |
+
elif self.config._attn_implementation == "flex_attention":
|
| 669 |
+
if isinstance(attention_mask, torch.Tensor):
|
| 670 |
+
attention_mask = make_flex_block_causal_mask(attention_mask, is_causal=False)
|
| 671 |
+
else:
|
| 672 |
+
# [bsz, seq_len] -> [bsz, 1, tgt_seq_len, src_seq_len]
|
| 673 |
+
attention_mask = _prepare_4d_attention_mask(attention_mask, inputs_embeds.dtype)
|
| 674 |
+
|
| 675 |
+
return attention_mask
|
| 676 |
+
|
| 677 |
+
|
| 678 |
+
@auto_docstring
|
| 679 |
+
class HubertPreTrainedModel(PreTrainedModel):
|
| 680 |
+
config: HubertConfig
|
| 681 |
+
base_model_prefix = "hubert"
|
| 682 |
+
main_input_name = "input_values"
|
| 683 |
+
supports_gradient_checkpointing = True
|
| 684 |
+
_supports_flash_attn = True
|
| 685 |
+
_supports_sdpa = True
|
| 686 |
+
_supports_flex_attn = True
|
| 687 |
+
|
| 688 |
+
def _init_weights(self, module):
|
| 689 |
+
"""Initialize the weights"""
|
| 690 |
+
if isinstance(module, nn.Linear):
|
| 691 |
+
# Slightly different from the TF version which uses truncated_normal for initialization
|
| 692 |
+
# cf https://github.com/pytorch/pytorch/pull/5617
|
| 693 |
+
module.weight.data.normal_(mean=0.0, std=self.config.initializer_range)
|
| 694 |
+
if module.bias is not None:
|
| 695 |
+
module.bias.data.zero_()
|
| 696 |
+
elif isinstance(module, (nn.LayerNorm, nn.GroupNorm, nn.BatchNorm1d)):
|
| 697 |
+
module.bias.data.zero_()
|
| 698 |
+
module.weight.data.fill_(1.0)
|
| 699 |
+
elif isinstance(module, nn.Conv1d):
|
| 700 |
+
if is_deepspeed_zero3_enabled():
|
| 701 |
+
import deepspeed
|
| 702 |
+
|
| 703 |
+
if hasattr(module, "weight_v") and hasattr(module, "weight_g"):
|
| 704 |
+
with deepspeed.zero.GatheredParameters([module.weight_v, module.weight_g], modifier_rank=0):
|
| 705 |
+
nn.init.kaiming_normal_(module.weight.data)
|
| 706 |
+
else:
|
| 707 |
+
with deepspeed.zero.GatheredParameters(module.weight, modifier_rank=0):
|
| 708 |
+
nn.init.kaiming_normal_(module.weight.data)
|
| 709 |
+
else:
|
| 710 |
+
nn.init.kaiming_normal_(module.weight.data)
|
| 711 |
+
|
| 712 |
+
if module.bias is not None:
|
| 713 |
+
module.bias.data.zero_()
|
| 714 |
+
elif isinstance(module, HubertModel):
|
| 715 |
+
if hasattr(module, "masked_spec_embed"):
|
| 716 |
+
module.masked_spec_embed.data.uniform_()
|
| 717 |
+
elif isinstance(module, HubertForSequenceClassification):
|
| 718 |
+
if hasattr(module, "layer_weights"):
|
| 719 |
+
module.layer_weights.data.fill_(1.0 / (self.config.num_hidden_layers + 1))
|
| 720 |
+
|
| 721 |
+
def _get_feat_extract_output_lengths(self, input_lengths: Union[torch.LongTensor, int]):
|
| 722 |
+
"""
|
| 723 |
+
Computes the output length of the convolutional layers
|
| 724 |
+
"""
|
| 725 |
+
|
| 726 |
+
def _conv_out_length(input_length, kernel_size, stride):
|
| 727 |
+
# 1D convolutional layer output length formula taken
|
| 728 |
+
# from https://pytorch.org/docs/stable/generated/torch.nn.Conv1d.html
|
| 729 |
+
return torch.div(input_length - kernel_size, stride, rounding_mode="floor") + 1
|
| 730 |
+
|
| 731 |
+
for kernel_size, stride in zip(self.config.conv_kernel, self.config.conv_stride):
|
| 732 |
+
input_lengths = _conv_out_length(input_lengths, kernel_size, stride)
|
| 733 |
+
|
| 734 |
+
return input_lengths
|
| 735 |
+
|
| 736 |
+
def _get_feature_vector_attention_mask(self, feature_vector_length: int, attention_mask: torch.LongTensor):
|
| 737 |
+
output_lengths = self._get_feat_extract_output_lengths(attention_mask.sum(-1)).to(torch.long)
|
| 738 |
+
batch_size = attention_mask.shape[0]
|
| 739 |
+
|
| 740 |
+
attention_mask = torch.zeros(
|
| 741 |
+
(batch_size, feature_vector_length), dtype=attention_mask.dtype, device=attention_mask.device
|
| 742 |
+
)
|
| 743 |
+
# these two operations makes sure that all values before the output lengths idxs are attended to
|
| 744 |
+
attention_mask[(torch.arange(attention_mask.shape[0], device=attention_mask.device), output_lengths - 1)] = 1
|
| 745 |
+
attention_mask = attention_mask.flip([-1]).cumsum(-1).flip([-1]).bool()
|
| 746 |
+
return attention_mask
|
| 747 |
+
|
| 748 |
+
|
| 749 |
+
def _compute_mask_indices(
|
| 750 |
+
shape: tuple[int, int],
|
| 751 |
+
mask_prob: float,
|
| 752 |
+
mask_length: int,
|
| 753 |
+
attention_mask: Optional[torch.LongTensor] = None,
|
| 754 |
+
min_masks: int = 0,
|
| 755 |
+
) -> np.ndarray:
|
| 756 |
+
"""
|
| 757 |
+
Computes random mask spans for a given shape. Used to implement [SpecAugment: A Simple Data Augmentation Method for
|
| 758 |
+
ASR](https://huggingface.co/papers/1904.08779). Note that this method is not optimized to run on TPU and should be run on
|
| 759 |
+
CPU as part of the preprocessing during training.
|
| 760 |
+
|
| 761 |
+
Args:
|
| 762 |
+
shape: The shape for which to compute masks. This should be of a tuple of size 2 where
|
| 763 |
+
the first element is the batch size and the second element is the length of the axis to span.
|
| 764 |
+
mask_prob: The percentage of the whole axis (between 0 and 1) which will be masked. The number of
|
| 765 |
+
independently generated mask spans of length `mask_length` is computed by
|
| 766 |
+
`mask_prob*shape[1]/mask_length`. Note that due to overlaps, `mask_prob` is an upper bound and the
|
| 767 |
+
actual percentage will be smaller.
|
| 768 |
+
mask_length: size of the mask
|
| 769 |
+
min_masks: minimum number of masked spans
|
| 770 |
+
attention_mask: A (right-padded) attention mask which independently shortens the feature axis of
|
| 771 |
+
each batch dimension.
|
| 772 |
+
"""
|
| 773 |
+
batch_size, sequence_length = shape
|
| 774 |
+
|
| 775 |
+
if mask_length < 1:
|
| 776 |
+
raise ValueError("`mask_length` has to be bigger than 0.")
|
| 777 |
+
|
| 778 |
+
if mask_length > sequence_length:
|
| 779 |
+
raise ValueError(
|
| 780 |
+
f"`mask_length` has to be smaller than `sequence_length`, but got `mask_length`: {mask_length}"
|
| 781 |
+
f" and `sequence_length`: {sequence_length}`"
|
| 782 |
+
)
|
| 783 |
+
|
| 784 |
+
# epsilon is used for probabilistic rounding
|
| 785 |
+
epsilon = np.random.rand(1).item()
|
| 786 |
+
|
| 787 |
+
def compute_num_masked_span(input_length):
|
| 788 |
+
"""Given input length, compute how many spans should be masked"""
|
| 789 |
+
num_masked_span = int(mask_prob * input_length / mask_length + epsilon)
|
| 790 |
+
num_masked_span = max(num_masked_span, min_masks)
|
| 791 |
+
|
| 792 |
+
# make sure num masked span <= sequence_length
|
| 793 |
+
if num_masked_span * mask_length > sequence_length:
|
| 794 |
+
num_masked_span = sequence_length // mask_length
|
| 795 |
+
|
| 796 |
+
# make sure num_masked span is also <= input_length - (mask_length - 1)
|
| 797 |
+
if input_length - (mask_length - 1) < num_masked_span:
|
| 798 |
+
num_masked_span = max(input_length - (mask_length - 1), 0)
|
| 799 |
+
|
| 800 |
+
return num_masked_span
|
| 801 |
+
|
| 802 |
+
# compute number of masked spans in batch
|
| 803 |
+
input_lengths = (
|
| 804 |
+
attention_mask.detach().sum(-1).tolist()
|
| 805 |
+
if attention_mask is not None
|
| 806 |
+
else [sequence_length for _ in range(batch_size)]
|
| 807 |
+
)
|
| 808 |
+
|
| 809 |
+
# SpecAugment mask to fill
|
| 810 |
+
spec_aug_mask = np.zeros((batch_size, sequence_length), dtype=bool)
|
| 811 |
+
spec_aug_mask_idxs = []
|
| 812 |
+
|
| 813 |
+
max_num_masked_span = compute_num_masked_span(sequence_length)
|
| 814 |
+
|
| 815 |
+
if max_num_masked_span == 0:
|
| 816 |
+
return spec_aug_mask
|
| 817 |
+
|
| 818 |
+
for input_length in input_lengths:
|
| 819 |
+
# compute num of masked spans for this input
|
| 820 |
+
num_masked_span = compute_num_masked_span(input_length)
|
| 821 |
+
|
| 822 |
+
# get random indices to mask
|
| 823 |
+
spec_aug_mask_idx = np.random.choice(
|
| 824 |
+
np.arange(input_length - (mask_length - 1)), num_masked_span, replace=False
|
| 825 |
+
)
|
| 826 |
+
|
| 827 |
+
# pick first sampled index that will serve as a dummy index to pad vector
|
| 828 |
+
# to ensure same dimension for all batches due to probabilistic rounding
|
| 829 |
+
# Picking first sample just pads those vectors twice.
|
| 830 |
+
if len(spec_aug_mask_idx) == 0:
|
| 831 |
+
# this case can only happen if `input_length` is strictly smaller then
|
| 832 |
+
# `sequence_length` in which case the last token has to be a padding
|
| 833 |
+
# token which we can use as a dummy mask id
|
| 834 |
+
dummy_mask_idx = sequence_length - 1
|
| 835 |
+
else:
|
| 836 |
+
dummy_mask_idx = spec_aug_mask_idx[0]
|
| 837 |
+
|
| 838 |
+
spec_aug_mask_idx = np.concatenate(
|
| 839 |
+
[spec_aug_mask_idx, np.ones(max_num_masked_span - num_masked_span, dtype=np.int32) * dummy_mask_idx]
|
| 840 |
+
)
|
| 841 |
+
spec_aug_mask_idxs.append(spec_aug_mask_idx)
|
| 842 |
+
|
| 843 |
+
spec_aug_mask_idxs = np.array(spec_aug_mask_idxs)
|
| 844 |
+
|
| 845 |
+
# expand masked indices to masked spans
|
| 846 |
+
spec_aug_mask_idxs = np.broadcast_to(
|
| 847 |
+
spec_aug_mask_idxs[:, :, None], (batch_size, max_num_masked_span, mask_length)
|
| 848 |
+
)
|
| 849 |
+
spec_aug_mask_idxs = spec_aug_mask_idxs.reshape(batch_size, max_num_masked_span * mask_length)
|
| 850 |
+
|
| 851 |
+
# add offset to the starting indexes so that indexes now create a span
|
| 852 |
+
offsets = np.arange(mask_length)[None, None, :]
|
| 853 |
+
offsets = np.broadcast_to(offsets, (batch_size, max_num_masked_span, mask_length)).reshape(
|
| 854 |
+
batch_size, max_num_masked_span * mask_length
|
| 855 |
+
)
|
| 856 |
+
spec_aug_mask_idxs = spec_aug_mask_idxs + offsets
|
| 857 |
+
|
| 858 |
+
# ensure that we cannot have indices larger than sequence_length
|
| 859 |
+
if spec_aug_mask_idxs.max() > sequence_length - 1:
|
| 860 |
+
spec_aug_mask_idxs[spec_aug_mask_idxs > sequence_length - 1] = sequence_length - 1
|
| 861 |
+
|
| 862 |
+
# scatter indices to mask
|
| 863 |
+
np.put_along_axis(spec_aug_mask, spec_aug_mask_idxs, 1, -1)
|
| 864 |
+
|
| 865 |
+
return spec_aug_mask
|
| 866 |
+
|
| 867 |
+
|
| 868 |
+
@auto_docstring
|
| 869 |
+
class HubertModel(HubertPreTrainedModel):
|
| 870 |
+
def __init__(self, config: HubertConfig):
|
| 871 |
+
super().__init__(config)
|
| 872 |
+
self.config = config
|
| 873 |
+
self.feature_extractor = HubertFeatureEncoder(config)
|
| 874 |
+
self.feature_projection = HubertFeatureProjection(config)
|
| 875 |
+
|
| 876 |
+
# model only needs masking vector if mask prob is > 0.0
|
| 877 |
+
if config.mask_time_prob > 0.0 or config.mask_feature_prob > 0.0:
|
| 878 |
+
self.masked_spec_embed = nn.Parameter(torch.Tensor(config.hidden_size).uniform_())
|
| 879 |
+
|
| 880 |
+
if config.do_stable_layer_norm:
|
| 881 |
+
self.encoder = HubertEncoderStableLayerNorm(config)
|
| 882 |
+
else:
|
| 883 |
+
self.encoder = HubertEncoder(config)
|
| 884 |
+
|
| 885 |
+
# Initialize weights and apply final processing
|
| 886 |
+
self.post_init()
|
| 887 |
+
|
| 888 |
+
def _mask_hidden_states(
|
| 889 |
+
self,
|
| 890 |
+
hidden_states: torch.FloatTensor,
|
| 891 |
+
mask_time_indices: Optional[torch.FloatTensor] = None,
|
| 892 |
+
attention_mask: Optional[torch.LongTensor] = None,
|
| 893 |
+
):
|
| 894 |
+
"""
|
| 895 |
+
Masks extracted features along time axis and/or along feature axis according to
|
| 896 |
+
[SpecAugment](https://huggingface.co/papers/1904.08779).
|
| 897 |
+
"""
|
| 898 |
+
|
| 899 |
+
# `config.apply_spec_augment` can set masking to False
|
| 900 |
+
if not getattr(self.config, "apply_spec_augment", True):
|
| 901 |
+
return hidden_states
|
| 902 |
+
|
| 903 |
+
# generate indices & apply SpecAugment along time axis
|
| 904 |
+
batch_size, sequence_length, hidden_size = hidden_states.size()
|
| 905 |
+
|
| 906 |
+
if mask_time_indices is not None:
|
| 907 |
+
# apply SpecAugment along time axis with given mask_time_indices
|
| 908 |
+
hidden_states[mask_time_indices] = self.masked_spec_embed.to(hidden_states.dtype)
|
| 909 |
+
elif self.config.mask_time_prob > 0 and self.training:
|
| 910 |
+
mask_time_indices = _compute_mask_indices(
|
| 911 |
+
(batch_size, sequence_length),
|
| 912 |
+
mask_prob=self.config.mask_time_prob,
|
| 913 |
+
mask_length=self.config.mask_time_length,
|
| 914 |
+
attention_mask=attention_mask,
|
| 915 |
+
min_masks=self.config.mask_time_min_masks,
|
| 916 |
+
)
|
| 917 |
+
mask_time_indices = torch.tensor(mask_time_indices, device=hidden_states.device, dtype=torch.bool)
|
| 918 |
+
hidden_states[mask_time_indices] = self.masked_spec_embed.to(hidden_states.dtype)
|
| 919 |
+
|
| 920 |
+
if self.config.mask_feature_prob > 0 and self.training:
|
| 921 |
+
# generate indices & apply SpecAugment along feature axis
|
| 922 |
+
mask_feature_indices = _compute_mask_indices(
|
| 923 |
+
(batch_size, hidden_size),
|
| 924 |
+
mask_prob=self.config.mask_feature_prob,
|
| 925 |
+
mask_length=self.config.mask_feature_length,
|
| 926 |
+
min_masks=self.config.mask_feature_min_masks,
|
| 927 |
+
)
|
| 928 |
+
mask_feature_indices = torch.tensor(mask_feature_indices, device=hidden_states.device, dtype=torch.bool)
|
| 929 |
+
mask_feature_indices = mask_feature_indices[:, None].expand(-1, sequence_length, -1)
|
| 930 |
+
hidden_states[mask_feature_indices] = 0
|
| 931 |
+
|
| 932 |
+
return hidden_states
|
| 933 |
+
|
| 934 |
+
@auto_docstring
|
| 935 |
+
def forward(
|
| 936 |
+
self,
|
| 937 |
+
input_values: Optional[torch.Tensor],
|
| 938 |
+
attention_mask: Optional[torch.Tensor] = None,
|
| 939 |
+
mask_time_indices: Optional[torch.FloatTensor] = None,
|
| 940 |
+
output_attentions: Optional[bool] = None,
|
| 941 |
+
output_hidden_states: Optional[bool] = None,
|
| 942 |
+
return_dict: Optional[bool] = None,
|
| 943 |
+
) -> Union[tuple, BaseModelOutput]:
|
| 944 |
+
r"""
|
| 945 |
+
mask_time_indices (`torch.BoolTensor` of shape `(batch_size, sequence_length)`, *optional*):
|
| 946 |
+
Indices to mask extracted features for contrastive loss. When in training mode, model learns to predict
|
| 947 |
+
masked extracted features in *config.proj_codevector_dim* space.
|
| 948 |
+
|
| 949 |
+
Example:
|
| 950 |
+
|
| 951 |
+
```python
|
| 952 |
+
>>> from transformers import AutoProcessor, HubertModel
|
| 953 |
+
>>> from datasets import load_dataset
|
| 954 |
+
|
| 955 |
+
>>> processor = AutoProcessor.from_pretrained("facebook/hubert-large-ls960-ft")
|
| 956 |
+
>>> model = HubertModel.from_pretrained("facebook/hubert-large-ls960-ft")
|
| 957 |
+
|
| 958 |
+
|
| 959 |
+
>>> def map_to_array(example):
|
| 960 |
+
... example["speech"] = example["audio"]["array"]
|
| 961 |
+
... return example
|
| 962 |
+
|
| 963 |
+
|
| 964 |
+
>>> ds = load_dataset("hf-internal-testing/librispeech_asr_dummy", "clean", split="validation")
|
| 965 |
+
>>> ds = ds.map(map_to_array)
|
| 966 |
+
|
| 967 |
+
>>> input_values = processor(ds["speech"][0], return_tensors="pt").input_values # Batch size 1
|
| 968 |
+
>>> hidden_states = model(input_values).last_hidden_state
|
| 969 |
+
```"""
|
| 970 |
+
output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions
|
| 971 |
+
output_hidden_states = (
|
| 972 |
+
output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states
|
| 973 |
+
)
|
| 974 |
+
return_dict = return_dict if return_dict is not None else self.config.use_return_dict
|
| 975 |
+
|
| 976 |
+
extract_features = self.feature_extractor(input_values)
|
| 977 |
+
extract_features = extract_features.transpose(1, 2)
|
| 978 |
+
|
| 979 |
+
if attention_mask is not None:
|
| 980 |
+
# compute reduced attention_mask corresponding to feature vectors
|
| 981 |
+
attention_mask = self._get_feature_vector_attention_mask(extract_features.shape[1], attention_mask)
|
| 982 |
+
|
| 983 |
+
hidden_states = self.feature_projection(extract_features)
|
| 984 |
+
hidden_states = self._mask_hidden_states(hidden_states, mask_time_indices=mask_time_indices)
|
| 985 |
+
|
| 986 |
+
encoder_outputs = self.encoder(
|
| 987 |
+
hidden_states,
|
| 988 |
+
attention_mask=attention_mask,
|
| 989 |
+
output_attentions=output_attentions,
|
| 990 |
+
output_hidden_states=output_hidden_states,
|
| 991 |
+
return_dict=return_dict,
|
| 992 |
+
)
|
| 993 |
+
|
| 994 |
+
hidden_states = encoder_outputs[0]
|
| 995 |
+
|
| 996 |
+
if not return_dict:
|
| 997 |
+
return (hidden_states,) + encoder_outputs[1:]
|
| 998 |
+
|
| 999 |
+
return BaseModelOutput(
|
| 1000 |
+
last_hidden_state=hidden_states,
|
| 1001 |
+
hidden_states=encoder_outputs.hidden_states,
|
| 1002 |
+
attentions=encoder_outputs.attentions,
|
| 1003 |
+
)
|
| 1004 |
+
|
| 1005 |
+
|
| 1006 |
+
_HIDDEN_STATES_START_POSITION = 1
|
| 1007 |
+
|
| 1008 |
+
|
| 1009 |
+
@auto_docstring(
|
| 1010 |
+
custom_intro="""
|
| 1011 |
+
Hubert Model with a `language modeling` head on top for Connectionist Temporal Classification (CTC).
|
| 1012 |
+
"""
|
| 1013 |
+
)
|
| 1014 |
+
class HubertForCTC(HubertPreTrainedModel):
|
| 1015 |
+
def __init__(self, config, target_lang: Optional[str] = None):
|
| 1016 |
+
r"""
|
| 1017 |
+
target_lang (`str`, *optional*):
|
| 1018 |
+
Language id of adapter weights. Adapter weights are stored in the format adapter.<lang>.safetensors or
|
| 1019 |
+
adapter.<lang>.bin. Only relevant when using an instance of [`HubertForCTC`] with adapters. Uses 'eng' by
|
| 1020 |
+
default.
|
| 1021 |
+
"""
|
| 1022 |
+
super().__init__(config)
|
| 1023 |
+
|
| 1024 |
+
self.hubert = HubertModel(config)
|
| 1025 |
+
self.dropout = nn.Dropout(config.final_dropout)
|
| 1026 |
+
|
| 1027 |
+
self.target_lang = target_lang
|
| 1028 |
+
|
| 1029 |
+
if config.vocab_size is None:
|
| 1030 |
+
raise ValueError(
|
| 1031 |
+
f"You are trying to instantiate {self.__class__} with a configuration that "
|
| 1032 |
+
"does not define the vocabulary size of the language model head. Please "
|
| 1033 |
+
"instantiate the model as follows: `HubertForCTC.from_pretrained(..., vocab_size=vocab_size)`. "
|
| 1034 |
+
"or define `vocab_size` of your model's configuration."
|
| 1035 |
+
)
|
| 1036 |
+
output_hidden_size = (
|
| 1037 |
+
config.output_hidden_size if hasattr(config, "add_adapter") and config.add_adapter else config.hidden_size
|
| 1038 |
+
)
|
| 1039 |
+
self.lm_head = nn.Linear(output_hidden_size, config.vocab_size)
|
| 1040 |
+
|
| 1041 |
+
# Initialize weights and apply final processing
|
| 1042 |
+
self.post_init()
|
| 1043 |
+
|
| 1044 |
+
def tie_weights(self):
|
| 1045 |
+
"""
|
| 1046 |
+
This method overwrites [`~PreTrainedModel.tie_weights`] so that adapter weights can be correctly loaded when
|
| 1047 |
+
passing `target_lang=...` to `from_pretrained(...)`.
|
| 1048 |
+
|
| 1049 |
+
This method is **not** supposed to be called by the user and is prone to be changed in the future.
|
| 1050 |
+
"""
|
| 1051 |
+
|
| 1052 |
+
# Note that `tie_weights` is usually used to tie input and output embedding weights. The method is re-purposed to
|
| 1053 |
+
# correctly load adapter layers for Hubert so that we do not have to introduce a new API to
|
| 1054 |
+
# [`PreTrainedModel`]. While slightly hacky, Hubert never has to tie input and output embeddings, so that it is
|
| 1055 |
+
# ok to repurpose this function here.
|
| 1056 |
+
target_lang = self.target_lang
|
| 1057 |
+
|
| 1058 |
+
if target_lang is not None and getattr(self.config, "adapter_attn_dim", None) is None:
|
| 1059 |
+
raise ValueError(f"Cannot pass `target_lang`: {target_lang} if `config.adapter_attn_dim` is not defined.")
|
| 1060 |
+
elif target_lang is None and getattr(self.config, "adapter_attn_dim", None) is not None:
|
| 1061 |
+
logger.info("By default `target_lang` is set to 'eng'.")
|
| 1062 |
+
elif target_lang is not None:
|
| 1063 |
+
self.load_adapter(target_lang, force_load=True)
|
| 1064 |
+
|
| 1065 |
+
def freeze_feature_extractor(self):
|
| 1066 |
+
"""
|
| 1067 |
+
Calling this function will disable the gradient computation for the feature encoder so that its parameter will
|
| 1068 |
+
not be updated during training.
|
| 1069 |
+
"""
|
| 1070 |
+
warnings.warn(
|
| 1071 |
+
"The method `freeze_feature_extractor` is deprecated and will be removed in Transformers v5. "
|
| 1072 |
+
"Please use the equivalent `freeze_feature_encoder` method instead.",
|
| 1073 |
+
FutureWarning,
|
| 1074 |
+
)
|
| 1075 |
+
self.freeze_feature_encoder()
|
| 1076 |
+
|
| 1077 |
+
def freeze_feature_encoder(self):
|
| 1078 |
+
"""
|
| 1079 |
+
Calling this function will disable the gradient computation for the feature encoder so that its parameter will
|
| 1080 |
+
not be updated during training.
|
| 1081 |
+
"""
|
| 1082 |
+
self.hubert.feature_extractor._freeze_parameters()
|
| 1083 |
+
|
| 1084 |
+
def freeze_base_model(self):
|
| 1085 |
+
"""
|
| 1086 |
+
Calling this function will disable the gradient computation for the base model so that its parameters will not
|
| 1087 |
+
be updated during training. Only the classification head will be updated.
|
| 1088 |
+
"""
|
| 1089 |
+
for param in self.hubert.parameters():
|
| 1090 |
+
param.requires_grad = False
|
| 1091 |
+
|
| 1092 |
+
@auto_docstring
|
| 1093 |
+
def forward(
|
| 1094 |
+
self,
|
| 1095 |
+
input_values: Optional[torch.Tensor],
|
| 1096 |
+
attention_mask: Optional[torch.Tensor] = None,
|
| 1097 |
+
output_attentions: Optional[bool] = None,
|
| 1098 |
+
output_hidden_states: Optional[bool] = None,
|
| 1099 |
+
return_dict: Optional[bool] = None,
|
| 1100 |
+
labels: Optional[torch.Tensor] = None,
|
| 1101 |
+
) -> Union[tuple, CausalLMOutput]:
|
| 1102 |
+
r"""
|
| 1103 |
+
labels (`torch.LongTensor` of shape `(batch_size, target_length)`, *optional*):
|
| 1104 |
+
Labels for connectionist temporal classification. Note that `target_length` has to be smaller or equal to
|
| 1105 |
+
the sequence length of the output logits. Indices are selected in `[-100, 0, ..., config.vocab_size - 1]`.
|
| 1106 |
+
All labels set to `-100` are ignored (masked), the loss is only computed for labels in `[0, ...,
|
| 1107 |
+
config.vocab_size - 1]`.
|
| 1108 |
+
"""
|
| 1109 |
+
return_dict = return_dict if return_dict is not None else self.config.use_return_dict
|
| 1110 |
+
|
| 1111 |
+
if labels is not None and labels.max() >= self.config.vocab_size:
|
| 1112 |
+
raise ValueError(f"Label values must be <= vocab_size: {self.config.vocab_size}")
|
| 1113 |
+
|
| 1114 |
+
outputs = self.hubert(
|
| 1115 |
+
input_values,
|
| 1116 |
+
attention_mask=attention_mask,
|
| 1117 |
+
output_attentions=output_attentions,
|
| 1118 |
+
output_hidden_states=output_hidden_states,
|
| 1119 |
+
return_dict=return_dict,
|
| 1120 |
+
)
|
| 1121 |
+
|
| 1122 |
+
hidden_states = outputs[0]
|
| 1123 |
+
hidden_states = self.dropout(hidden_states)
|
| 1124 |
+
|
| 1125 |
+
logits = self.lm_head(hidden_states)
|
| 1126 |
+
|
| 1127 |
+
loss = None
|
| 1128 |
+
if labels is not None:
|
| 1129 |
+
# retrieve loss input_lengths from attention_mask
|
| 1130 |
+
attention_mask = (
|
| 1131 |
+
attention_mask if attention_mask is not None else torch.ones_like(input_values, dtype=torch.long)
|
| 1132 |
+
)
|
| 1133 |
+
input_lengths = self._get_feat_extract_output_lengths(attention_mask.sum(-1)).to(torch.long)
|
| 1134 |
+
|
| 1135 |
+
# assuming that padded tokens are filled with -100
|
| 1136 |
+
# when not being attended to
|
| 1137 |
+
labels_mask = labels >= 0
|
| 1138 |
+
target_lengths = labels_mask.sum(-1)
|
| 1139 |
+
flattened_targets = labels.masked_select(labels_mask)
|
| 1140 |
+
|
| 1141 |
+
# ctc_loss doesn't support fp16
|
| 1142 |
+
log_probs = nn.functional.log_softmax(logits, dim=-1, dtype=torch.float32).transpose(0, 1)
|
| 1143 |
+
|
| 1144 |
+
with torch.backends.cudnn.flags(enabled=False):
|
| 1145 |
+
loss = nn.functional.ctc_loss(
|
| 1146 |
+
log_probs,
|
| 1147 |
+
flattened_targets,
|
| 1148 |
+
input_lengths,
|
| 1149 |
+
target_lengths,
|
| 1150 |
+
blank=self.config.pad_token_id,
|
| 1151 |
+
reduction=self.config.ctc_loss_reduction,
|
| 1152 |
+
zero_infinity=self.config.ctc_zero_infinity,
|
| 1153 |
+
)
|
| 1154 |
+
|
| 1155 |
+
if not return_dict:
|
| 1156 |
+
output = (logits,) + outputs[_HIDDEN_STATES_START_POSITION:]
|
| 1157 |
+
return ((loss,) + output) if loss is not None else output
|
| 1158 |
+
|
| 1159 |
+
return CausalLMOutput(
|
| 1160 |
+
loss=loss, logits=logits, hidden_states=outputs.hidden_states, attentions=outputs.attentions
|
| 1161 |
+
)
|
| 1162 |
+
|
| 1163 |
+
|
| 1164 |
+
@auto_docstring(
|
| 1165 |
+
custom_intro="""
|
| 1166 |
+
Hubert Model with a sequence classification head on top (a linear layer over the pooled output) for tasks like
|
| 1167 |
+
SUPERB Keyword Spotting.
|
| 1168 |
+
"""
|
| 1169 |
+
)
|
| 1170 |
+
class HubertForSequenceClassification(HubertPreTrainedModel):
|
| 1171 |
+
def __init__(self, config):
|
| 1172 |
+
super().__init__(config)
|
| 1173 |
+
|
| 1174 |
+
if hasattr(config, "add_adapter") and config.add_adapter:
|
| 1175 |
+
raise ValueError(
|
| 1176 |
+
"Sequence classification does not support the use of Hubert adapters (config.add_adapter=True)"
|
| 1177 |
+
)
|
| 1178 |
+
self.hubert = HubertModel(config)
|
| 1179 |
+
num_layers = config.num_hidden_layers + 1 # transformer layers + input embeddings
|
| 1180 |
+
if config.use_weighted_layer_sum:
|
| 1181 |
+
self.layer_weights = nn.Parameter(torch.ones(num_layers) / num_layers)
|
| 1182 |
+
self.projector = nn.Linear(config.hidden_size, config.classifier_proj_size)
|
| 1183 |
+
self.classifier = nn.Linear(config.classifier_proj_size, config.num_labels)
|
| 1184 |
+
|
| 1185 |
+
# Initialize weights and apply final processing
|
| 1186 |
+
self.post_init()
|
| 1187 |
+
|
| 1188 |
+
def freeze_feature_extractor(self):
|
| 1189 |
+
"""
|
| 1190 |
+
Calling this function will disable the gradient computation for the feature encoder so that its parameters will
|
| 1191 |
+
not be updated during training.
|
| 1192 |
+
"""
|
| 1193 |
+
warnings.warn(
|
| 1194 |
+
"The method `freeze_feature_extractor` is deprecated and will be removed in Transformers v5. "
|
| 1195 |
+
"Please use the equivalent `freeze_feature_encoder` method instead.",
|
| 1196 |
+
FutureWarning,
|
| 1197 |
+
)
|
| 1198 |
+
self.freeze_feature_encoder()
|
| 1199 |
+
|
| 1200 |
+
def freeze_feature_encoder(self):
|
| 1201 |
+
"""
|
| 1202 |
+
Calling this function will disable the gradient computation for the feature encoder so that its parameter will
|
| 1203 |
+
not be updated during training.
|
| 1204 |
+
"""
|
| 1205 |
+
self.hubert.feature_extractor._freeze_parameters()
|
| 1206 |
+
|
| 1207 |
+
def freeze_base_model(self):
|
| 1208 |
+
"""
|
| 1209 |
+
Calling this function will disable the gradient computation for the base model so that its parameters will not
|
| 1210 |
+
be updated during training. Only the classification head will be updated.
|
| 1211 |
+
"""
|
| 1212 |
+
for param in self.hubert.parameters():
|
| 1213 |
+
param.requires_grad = False
|
| 1214 |
+
|
| 1215 |
+
@auto_docstring
|
| 1216 |
+
def forward(
|
| 1217 |
+
self,
|
| 1218 |
+
input_values: Optional[torch.Tensor],
|
| 1219 |
+
attention_mask: Optional[torch.Tensor] = None,
|
| 1220 |
+
output_attentions: Optional[bool] = None,
|
| 1221 |
+
output_hidden_states: Optional[bool] = None,
|
| 1222 |
+
return_dict: Optional[bool] = None,
|
| 1223 |
+
labels: Optional[torch.Tensor] = None,
|
| 1224 |
+
) -> Union[tuple, SequenceClassifierOutput]:
|
| 1225 |
+
r"""
|
| 1226 |
+
input_values (`torch.FloatTensor` of shape `(batch_size, sequence_length)`):
|
| 1227 |
+
Float values of input raw speech waveform. Values can be obtained by loading a `.flac` or `.wav` audio file
|
| 1228 |
+
into an array of type `list[float]`, a `numpy.ndarray` or a `torch.Tensor`, *e.g.* via the torchcodec library
|
| 1229 |
+
(`pip install torchcodec`) or the soundfile library (`pip install soundfile`).
|
| 1230 |
+
To prepare the array into `input_values`, the [`AutoProcessor`] should be used for padding and conversion
|
| 1231 |
+
into a tensor of type `torch.FloatTensor`. See [`HubertProcessor.__call__`] for details.
|
| 1232 |
+
labels (`torch.LongTensor` of shape `(batch_size,)`, *optional*):
|
| 1233 |
+
Labels for computing the sequence classification/regression loss. Indices should be in `[0, ...,
|
| 1234 |
+
config.num_labels - 1]`. If `config.num_labels == 1` a regression loss is computed (Mean-Square loss), If
|
| 1235 |
+
`config.num_labels > 1` a classification loss is computed (Cross-Entropy).
|
| 1236 |
+
"""
|
| 1237 |
+
|
| 1238 |
+
return_dict = return_dict if return_dict is not None else self.config.use_return_dict
|
| 1239 |
+
output_hidden_states = True if self.config.use_weighted_layer_sum else output_hidden_states
|
| 1240 |
+
|
| 1241 |
+
outputs = self.hubert(
|
| 1242 |
+
input_values,
|
| 1243 |
+
attention_mask=attention_mask,
|
| 1244 |
+
output_attentions=output_attentions,
|
| 1245 |
+
output_hidden_states=output_hidden_states,
|
| 1246 |
+
return_dict=return_dict,
|
| 1247 |
+
)
|
| 1248 |
+
|
| 1249 |
+
if self.config.use_weighted_layer_sum:
|
| 1250 |
+
hidden_states = outputs[_HIDDEN_STATES_START_POSITION]
|
| 1251 |
+
hidden_states = torch.stack(hidden_states, dim=1)
|
| 1252 |
+
norm_weights = nn.functional.softmax(self.layer_weights, dim=-1)
|
| 1253 |
+
hidden_states = (hidden_states * norm_weights.view(-1, 1, 1)).sum(dim=1)
|
| 1254 |
+
else:
|
| 1255 |
+
hidden_states = outputs[0]
|
| 1256 |
+
|
| 1257 |
+
hidden_states = self.projector(hidden_states)
|
| 1258 |
+
if attention_mask is None:
|
| 1259 |
+
pooled_output = hidden_states.mean(dim=1)
|
| 1260 |
+
else:
|
| 1261 |
+
padding_mask = self._get_feature_vector_attention_mask(hidden_states.shape[1], attention_mask)
|
| 1262 |
+
expand_padding_mask = padding_mask.unsqueeze(-1).repeat(1, 1, hidden_states.shape[2])
|
| 1263 |
+
hidden_states[~expand_padding_mask] = 0.0
|
| 1264 |
+
pooled_output = hidden_states.sum(dim=1) / padding_mask.sum(dim=1).view(-1, 1)
|
| 1265 |
+
|
| 1266 |
+
logits = self.classifier(pooled_output)
|
| 1267 |
+
|
| 1268 |
+
loss = None
|
| 1269 |
+
if labels is not None:
|
| 1270 |
+
loss_fct = CrossEntropyLoss()
|
| 1271 |
+
loss = loss_fct(logits.view(-1, self.config.num_labels), labels.view(-1))
|
| 1272 |
+
|
| 1273 |
+
if not return_dict:
|
| 1274 |
+
output = (logits,) + outputs[_HIDDEN_STATES_START_POSITION:]
|
| 1275 |
+
return ((loss,) + output) if loss is not None else output
|
| 1276 |
+
|
| 1277 |
+
return SequenceClassifierOutput(
|
| 1278 |
+
loss=loss,
|
| 1279 |
+
logits=logits,
|
| 1280 |
+
hidden_states=outputs.hidden_states,
|
| 1281 |
+
attentions=outputs.attentions,
|
| 1282 |
+
)
|
| 1283 |
+
|
| 1284 |
+
|
| 1285 |
+
__all__ = ["HubertForCTC", "HubertForSequenceClassification", "HubertModel", "HubertPreTrainedModel"]
|