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FunASR/funasr/tasks/diar.py
Zhihao Du 38de2af5bf
Merge branch 'main' into dev_dzh
2023-03-16 19:41:34 +08:00

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import argparse
import logging
import os
from pathlib import Path
from typing import Callable
from typing import Collection
from typing import Dict
from typing import List
from typing import Optional
from typing import Tuple
from typing import Union
import numpy as np
import torch
import yaml
from typeguard import check_argument_types
from typeguard import check_return_type
from funasr.datasets.collate_fn import CommonCollateFn
from funasr.datasets.preprocessor import CommonPreprocessor
from funasr.layers.abs_normalize import AbsNormalize
from funasr.layers.global_mvn import GlobalMVN
from funasr.layers.label_aggregation import LabelAggregate
from funasr.layers.utterance_mvn import UtteranceMVN
from funasr.models.e2e_diar_sond import DiarSondModel
from funasr.models.e2e_diar_eend_ola import DiarEENDOLAModel
from funasr.models.encoder.abs_encoder import AbsEncoder
from funasr.models.encoder.conformer_encoder import ConformerEncoder
from funasr.models.encoder.data2vec_encoder import Data2VecEncoder
from funasr.models.encoder.ecapa_tdnn_encoder import ECAPA_TDNN
from funasr.models.encoder.opennmt_encoders.ci_scorers import DotScorer, CosScorer
from funasr.models.encoder.opennmt_encoders.conv_encoder import ConvEncoder
from funasr.models.encoder.opennmt_encoders.fsmn_encoder import FsmnEncoder
from funasr.models.encoder.opennmt_encoders.self_attention_encoder import SelfAttentionEncoder
from funasr.models.encoder.resnet34_encoder import ResNet34Diar, ResNet34SpL2RegDiar
from funasr.models.encoder.rnn_encoder import RNNEncoder
from funasr.models.encoder.sanm_encoder import SANMEncoder, SANMEncoderChunkOpt
from funasr.models.encoder.transformer_encoder import TransformerEncoder
from funasr.models.frontend.abs_frontend import AbsFrontend
from funasr.models.frontend.default import DefaultFrontend
from funasr.models.frontend.fused import FusedFrontends
from funasr.models.frontend.s3prl import S3prlFrontend
from funasr.models.frontend.wav_frontend import WavFrontend
from funasr.models.frontend.wav_frontend import WavFrontendMel23
from funasr.models.frontend.windowing import SlidingWindow
from funasr.models.specaug.abs_specaug import AbsSpecAug
from funasr.models.specaug.specaug import SpecAug
from funasr.models.specaug.specaug import SpecAugLFR
from funasr.modules.eend_ola.encoder import EENDOLATransformerEncoder
from funasr.modules.eend_ola.encoder_decoder_attractor import EncoderDecoderAttractor
from funasr.tasks.abs_task import AbsTask
from funasr.torch_utils.initialize import initialize
from funasr.train.abs_espnet_model import AbsESPnetModel
from funasr.train.class_choices import ClassChoices
from funasr.train.trainer import Trainer
from funasr.utils.types import float_or_none
from funasr.utils.types import int_or_none
from funasr.utils.types import str2bool
from funasr.utils.types import str_or_none
frontend_choices = ClassChoices(
name="frontend",
classes=dict(
default=DefaultFrontend,
sliding_window=SlidingWindow,
s3prl=S3prlFrontend,
fused=FusedFrontends,
wav_frontend=WavFrontend,
wav_frontend_mel23=WavFrontendMel23,
),
type_check=AbsFrontend,
default="default",
)
specaug_choices = ClassChoices(
name="specaug",
classes=dict(
specaug=SpecAug,
specaug_lfr=SpecAugLFR,
),
type_check=AbsSpecAug,
default=None,
optional=True,
)
normalize_choices = ClassChoices(
"normalize",
classes=dict(
global_mvn=GlobalMVN,
utterance_mvn=UtteranceMVN,
),
type_check=AbsNormalize,
default=None,
optional=True,
)
label_aggregator_choices = ClassChoices(
"label_aggregator",
classes=dict(
label_aggregator=LabelAggregate
),
type_check=torch.nn.Module,
default=None,
optional=True,
)
model_choices = ClassChoices(
"model",
classes=dict(
sond=DiarSondModel,
eend_ola=DiarEENDOLAModel,
),
type_check=AbsESPnetModel,
default="sond",
)
encoder_choices = ClassChoices(
"encoder",
classes=dict(
conformer=ConformerEncoder,
transformer=TransformerEncoder,
rnn=RNNEncoder,
sanm=SANMEncoder,
san=SelfAttentionEncoder,
fsmn=FsmnEncoder,
conv=ConvEncoder,
resnet34=ResNet34Diar,
resnet34_sp_l2reg=ResNet34SpL2RegDiar,
sanm_chunk_opt=SANMEncoderChunkOpt,
data2vec_encoder=Data2VecEncoder,
ecapa_tdnn=ECAPA_TDNN,
eend_ola_transformer=EENDOLATransformerEncoder,
),
type_check=torch.nn.Module,
default="resnet34",
)
speaker_encoder_choices = ClassChoices(
"speaker_encoder",
classes=dict(
conformer=ConformerEncoder,
transformer=TransformerEncoder,
rnn=RNNEncoder,
sanm=SANMEncoder,
san=SelfAttentionEncoder,
fsmn=FsmnEncoder,
conv=ConvEncoder,
sanm_chunk_opt=SANMEncoderChunkOpt,
data2vec_encoder=Data2VecEncoder,
),
type_check=AbsEncoder,
default=None,
optional=True
)
cd_scorer_choices = ClassChoices(
"cd_scorer",
classes=dict(
san=SelfAttentionEncoder,
),
type_check=AbsEncoder,
default=None,
optional=True,
)
ci_scorer_choices = ClassChoices(
"ci_scorer",
classes=dict(
dot=DotScorer,
cosine=CosScorer,
conv=ConvEncoder,
),
type_check=torch.nn.Module,
default=None,
optional=True,
)
# decoder is used for output (e.g. post_net in SOND)
decoder_choices = ClassChoices(
"decoder",
classes=dict(
rnn=RNNEncoder,
fsmn=FsmnEncoder,
),
type_check=torch.nn.Module,
default="fsmn",
)
# encoder_decoder_attractor is used for EEND-OLA
encoder_decoder_attractor_choices = ClassChoices(
"encoder_decoder_attractor",
classes=dict(
eda=EncoderDecoderAttractor,
),
type_check=torch.nn.Module,
default="eda",
)
class DiarTask(AbsTask):
# If you need more than 1 optimizer, change this value
num_optimizers: int = 1
# Add variable objects configurations
class_choices_list = [
# --frontend and --frontend_conf
frontend_choices,
# --specaug and --specaug_conf
specaug_choices,
# --normalize and --normalize_conf
normalize_choices,
# --label_aggregator and --label_aggregator_conf
label_aggregator_choices,
# --model and --model_conf
model_choices,
# --encoder and --encoder_conf
encoder_choices,
# --speaker_encoder and --speaker_encoder_conf
speaker_encoder_choices,
# --cd_scorer and cd_scorer_conf
cd_scorer_choices,
# --ci_scorer and ci_scorer_conf
ci_scorer_choices,
# --decoder and --decoder_conf
decoder_choices,
]
# If you need to modify train() or eval() procedures, change Trainer class here
trainer = Trainer
@classmethod
def add_task_arguments(cls, parser: argparse.ArgumentParser):
group = parser.add_argument_group(description="Task related")
# NOTE(kamo): add_arguments(..., required=True) can't be used
# to provide --print_config mode. Instead of it, do as
# required = parser.get_default("required")
# required += ["token_list"]
group.add_argument(
"--token_list",
type=str_or_none,
default=None,
help="A text mapping int-id to token",
)
group.add_argument(
"--split_with_space",
type=str2bool,
default=True,
help="whether to split text using <space>",
)
group.add_argument(
"--seg_dict_file",
type=str,
default=None,
help="seg_dict_file for text processing",
)
group.add_argument(
"--init",
type=lambda x: str_or_none(x.lower()),
default=None,
help="The initialization method",
choices=[
"chainer",
"xavier_uniform",
"xavier_normal",
"kaiming_uniform",
"kaiming_normal",
None,
],
)
group.add_argument(
"--input_size",
type=int_or_none,
default=None,
help="The number of input dimension of the feature",
)
group = parser.add_argument_group(description="Preprocess related")
group.add_argument(
"--use_preprocessor",
type=str2bool,
default=True,
help="Apply preprocessing to data or not",
)
group.add_argument(
"--token_type",
type=str,
default="char",
choices=["char"],
help="The text will be tokenized in the specified level token",
)
parser.add_argument(
"--speech_volume_normalize",
type=float_or_none,
default=None,
help="Scale the maximum amplitude to the given value.",
)
parser.add_argument(
"--rir_scp",
type=str_or_none,
default=None,
help="The file path of rir scp file.",
)
parser.add_argument(
"--rir_apply_prob",
type=float,
default=1.0,
help="THe probability for applying RIR convolution.",
)
parser.add_argument(
"--cmvn_file",
type=str_or_none,
default=None,
help="The file path of noise scp file.",
)
parser.add_argument(
"--noise_scp",
type=str_or_none,
default=None,
help="The file path of noise scp file.",
)
parser.add_argument(
"--noise_apply_prob",
type=float,
default=1.0,
help="The probability applying Noise adding.",
)
parser.add_argument(
"--noise_db_range",
type=str,
default="13_15",
help="The range of noise decibel level.",
)
for class_choices in cls.class_choices_list:
# Append --<name> and --<name>_conf.
# e.g. --encoder and --encoder_conf
class_choices.add_arguments(group)
@classmethod
def build_collate_fn(
cls, args: argparse.Namespace, train: bool
) -> Callable[
[Collection[Tuple[str, Dict[str, np.ndarray]]]],
Tuple[List[str], Dict[str, torch.Tensor]],
]:
assert check_argument_types()
# NOTE(kamo): int value = 0 is reserved by CTC-blank symbol
return CommonCollateFn(float_pad_value=0.0, int_pad_value=-1)
@classmethod
def build_preprocess_fn(
cls, args: argparse.Namespace, train: bool
) -> Optional[Callable[[str, Dict[str, np.array]], Dict[str, np.ndarray]]]:
assert check_argument_types()
if args.use_preprocessor:
retval = CommonPreprocessor(
train=train,
token_type=args.token_type,
token_list=args.token_list,
bpemodel=None,
non_linguistic_symbols=None,
text_cleaner=None,
g2p_type=None,
split_with_space=args.split_with_space if hasattr(args, "split_with_space") else False,
seg_dict_file=args.seg_dict_file if hasattr(args, "seg_dict_file") else None,
# NOTE(kamo): Check attribute existence for backward compatibility
rir_scp=args.rir_scp if hasattr(args, "rir_scp") else None,
rir_apply_prob=args.rir_apply_prob
if hasattr(args, "rir_apply_prob")
else 1.0,
noise_scp=args.noise_scp if hasattr(args, "noise_scp") else None,
noise_apply_prob=args.noise_apply_prob
if hasattr(args, "noise_apply_prob")
else 1.0,
noise_db_range=args.noise_db_range
if hasattr(args, "noise_db_range")
else "13_15",
speech_volume_normalize=args.speech_volume_normalize
if hasattr(args, "rir_scp")
else None,
)
else:
retval = None
assert check_return_type(retval)
return retval
@classmethod
def required_data_names(
cls, train: bool = True, inference: bool = False
) -> Tuple[str, ...]:
if not inference:
retval = ("speech", "profile", "binary_labels")
else:
# Recognition mode
retval = ("speech", "profile")
return retval
@classmethod
def optional_data_names(
cls, train: bool = True, inference: bool = False
) -> Tuple[str, ...]:
retval = ()
assert check_return_type(retval)
return retval
@classmethod
def build_model(cls, args: argparse.Namespace):
assert check_argument_types()
if isinstance(args.token_list, str):
with open(args.token_list, encoding="utf-8") as f:
token_list = [line.rstrip() for line in f]
# Overwriting token_list to keep it as "portable".
args.token_list = list(token_list)
elif isinstance(args.token_list, (tuple, list)):
token_list = list(args.token_list)
else:
raise RuntimeError("token_list must be str or list")
vocab_size = len(token_list)
logging.info(f"Vocabulary size: {vocab_size}")
# 1. frontend
if args.input_size is None:
# Extract features in the model
frontend_class = frontend_choices.get_class(args.frontend)
if args.frontend == 'wav_frontend':
frontend = frontend_class(cmvn_file=args.cmvn_file, **args.frontend_conf)
else:
frontend = frontend_class(**args.frontend_conf)
input_size = frontend.output_size()
else:
# Give features from data-loader
args.frontend = None
args.frontend_conf = {}
frontend = None
input_size = args.input_size
# 2. Data augmentation for spectrogram
if args.specaug is not None:
specaug_class = specaug_choices.get_class(args.specaug)
specaug = specaug_class(**args.specaug_conf)
else:
specaug = None
# 3. Normalization layer
if args.normalize is not None:
normalize_class = normalize_choices.get_class(args.normalize)
normalize = normalize_class(**args.normalize_conf)
else:
normalize = None
# 4. Encoder
encoder_class = encoder_choices.get_class(args.encoder)
encoder = encoder_class(input_size=input_size, **args.encoder_conf)
# 5. speaker encoder
if getattr(args, "speaker_encoder", None) is not None:
speaker_encoder_class = speaker_encoder_choices.get_class(args.speaker_encoder)
speaker_encoder = speaker_encoder_class(**args.speaker_encoder_conf)
else:
speaker_encoder = None
# 6. CI & CD scorer
if getattr(args, "ci_scorer", None) is not None:
ci_scorer_class = ci_scorer_choices.get_class(args.ci_scorer)
ci_scorer = ci_scorer_class(**args.ci_scorer_conf)
else:
ci_scorer = None
if getattr(args, "cd_scorer", None) is not None:
cd_scorer_class = cd_scorer_choices.get_class(args.cd_scorer)
cd_scorer = cd_scorer_class(**args.cd_scorer_conf)
else:
cd_scorer = None
# 7. Decoder
decoder_class = decoder_choices.get_class(args.decoder)
decoder = decoder_class(**args.decoder_conf)
if getattr(args, "label_aggregator", None) is not None:
label_aggregator_class = label_aggregator_choices.get_class(args.label_aggregator)
label_aggregator = label_aggregator_class(**args.label_aggregator_conf)
else:
label_aggregator = None
# 9. Build model
model_class = model_choices.get_class(args.model)
model = model_class(
vocab_size=vocab_size,
frontend=frontend,
specaug=specaug,
normalize=normalize,
label_aggregator=label_aggregator,
encoder=encoder,
speaker_encoder=speaker_encoder,
ci_scorer=ci_scorer,
cd_scorer=cd_scorer,
decoder=decoder,
token_list=token_list,
**args.model_conf,
)
# 10. Initialize
if args.init is not None:
initialize(model, args.init)
assert check_return_type(model)
return model
# ~~~~~~~~~ The methods below are mainly used for inference ~~~~~~~~~
@classmethod
def build_model_from_file(
cls,
config_file: Union[Path, str] = None,
model_file: Union[Path, str] = None,
cmvn_file: Union[Path, str] = None,
device: Union[str, torch.device] = "cpu",
):
"""Build model from the files.
This method is used for inference or fine-tuning.
Args:
config_file: The yaml file saved when training.
model_file: The model file saved when training.
cmvn_file: The cmvn file for front-end
device: Device type, "cpu", "cuda", or "cuda:N".
"""
assert check_argument_types()
if config_file is None:
assert model_file is not None, (
"The argument 'model_file' must be provided "
"if the argument 'config_file' is not specified."
)
config_file = Path(model_file).parent / "config.yaml"
else:
config_file = Path(config_file)
with config_file.open("r", encoding="utf-8") as f:
args = yaml.safe_load(f)
if cmvn_file is not None:
args["cmvn_file"] = cmvn_file
args = argparse.Namespace(**args)
model = cls.build_model(args)
if not isinstance(model, AbsESPnetModel):
raise RuntimeError(
f"model must inherit {AbsESPnetModel.__name__}, but got {type(model)}"
)
model.to(device)
model_dict = dict()
model_name_pth = None
if model_file is not None:
logging.info("model_file is {}".format(model_file))
if device == "cuda":
device = f"cuda:{torch.cuda.current_device()}"
model_dir = os.path.dirname(model_file)
model_name = os.path.basename(model_file)
if "model.ckpt-" in model_name or ".bin" in model_name:
if ".bin" in model_name:
model_name_pth = os.path.join(model_dir, model_name.replace('.bin', '.pb'))
else:
model_name_pth = os.path.join(model_dir, "{}.pb".format(model_name))
if os.path.exists(model_name_pth):
logging.info("model_file is load from pth: {}".format(model_name_pth))
model_dict = torch.load(model_name_pth, map_location=device)
else:
model_dict = cls.convert_tf2torch(model, model_file)
model.load_state_dict(model_dict)
else:
model_dict = torch.load(model_file, map_location=device)
model_dict = cls.fileter_model_dict(model_dict, model.state_dict())
model.load_state_dict(model_dict)
if model_name_pth is not None and not os.path.exists(model_name_pth):
torch.save(model_dict, model_name_pth)
logging.info("model_file is saved to pth: {}".format(model_name_pth))
return model, args
@classmethod
def fileter_model_dict(cls, src_dict: dict, dest_dict: dict):
from collections import OrderedDict
new_dict = OrderedDict()
for key, value in src_dict.items():
if key in dest_dict:
new_dict[key] = value
else:
logging.info("{} is no longer needed in this model.".format(key))
for key, value in dest_dict.items():
if key not in new_dict:
logging.warning("{} is missed in checkpoint.".format(key))
return new_dict
@classmethod
def convert_tf2torch(
cls,
model,
ckpt,
):
logging.info("start convert tf model to torch model")
from funasr.modules.streaming_utils.load_fr_tf import load_tf_dict
var_dict_tf = load_tf_dict(ckpt)
var_dict_torch = model.state_dict()
var_dict_torch_update = dict()
# speech encoder
if model.encoder is not None:
var_dict_torch_update_local = model.encoder.convert_tf2torch(var_dict_tf, var_dict_torch)
var_dict_torch_update.update(var_dict_torch_update_local)
# speaker encoder
if model.speaker_encoder is not None:
var_dict_torch_update_local = model.speaker_encoder.convert_tf2torch(var_dict_tf, var_dict_torch)
var_dict_torch_update.update(var_dict_torch_update_local)
# cd scorer
if model.cd_scorer is not None:
var_dict_torch_update_local = model.cd_scorer.convert_tf2torch(var_dict_tf, var_dict_torch)
var_dict_torch_update.update(var_dict_torch_update_local)
# ci scorer
if model.ci_scorer is not None:
var_dict_torch_update_local = model.ci_scorer.convert_tf2torch(var_dict_tf, var_dict_torch)
var_dict_torch_update.update(var_dict_torch_update_local)
# decoder
if model.decoder is not None:
var_dict_torch_update_local = model.decoder.convert_tf2torch(var_dict_tf, var_dict_torch)
var_dict_torch_update.update(var_dict_torch_update_local)
return var_dict_torch_update
class EENDOLADiarTask(AbsTask):
# If you need more than 1 optimizer, change this value
num_optimizers: int = 1
# Add variable objects configurations
class_choices_list = [
# --frontend and --frontend_conf
frontend_choices,
# --specaug and --specaug_conf
model_choices,
# --encoder and --encoder_conf
encoder_choices,
# --speaker_encoder and --speaker_encoder_conf
encoder_decoder_attractor_choices,
]
# If you need to modify train() or eval() procedures, change Trainer class here
trainer = Trainer
@classmethod
def add_task_arguments(cls, parser: argparse.ArgumentParser):
group = parser.add_argument_group(description="Task related")
# NOTE(kamo): add_arguments(..., required=True) can't be used
# to provide --print_config mode. Instead of it, do as
# required = parser.get_default("required")
# required += ["token_list"]
group.add_argument(
"--token_list",
type=str_or_none,
default=None,
help="A text mapping int-id to token",
)
group.add_argument(
"--split_with_space",
type=str2bool,
default=True,
help="whether to split text using <space>",
)
group.add_argument(
"--seg_dict_file",
type=str,
default=None,
help="seg_dict_file for text processing",
)
group.add_argument(
"--init",
type=lambda x: str_or_none(x.lower()),
default=None,
help="The initialization method",
choices=[
"chainer",
"xavier_uniform",
"xavier_normal",
"kaiming_uniform",
"kaiming_normal",
None,
],
)
group.add_argument(
"--input_size",
type=int_or_none,
default=None,
help="The number of input dimension of the feature",
)
group = parser.add_argument_group(description="Preprocess related")
group.add_argument(
"--use_preprocessor",
type=str2bool,
default=True,
help="Apply preprocessing to data or not",
)
group.add_argument(
"--token_type",
type=str,
default="char",
choices=["char"],
help="The text will be tokenized in the specified level token",
)
parser.add_argument(
"--speech_volume_normalize",
type=float_or_none,
default=None,
help="Scale the maximum amplitude to the given value.",
)
parser.add_argument(
"--rir_scp",
type=str_or_none,
default=None,
help="The file path of rir scp file.",
)
parser.add_argument(
"--rir_apply_prob",
type=float,
default=1.0,
help="THe probability for applying RIR convolution.",
)
parser.add_argument(
"--cmvn_file",
type=str_or_none,
default=None,
help="The file path of noise scp file.",
)
parser.add_argument(
"--noise_scp",
type=str_or_none,
default=None,
help="The file path of noise scp file.",
)
parser.add_argument(
"--noise_apply_prob",
type=float,
default=1.0,
help="The probability applying Noise adding.",
)
parser.add_argument(
"--noise_db_range",
type=str,
default="13_15",
help="The range of noise decibel level.",
)
for class_choices in cls.class_choices_list:
# Append --<name> and --<name>_conf.
# e.g. --encoder and --encoder_conf
class_choices.add_arguments(group)
@classmethod
def build_collate_fn(
cls, args: argparse.Namespace, train: bool
) -> Callable[
[Collection[Tuple[str, Dict[str, np.ndarray]]]],
Tuple[List[str], Dict[str, torch.Tensor]],
]:
assert check_argument_types()
# NOTE(kamo): int value = 0 is reserved by CTC-blank symbol
return CommonCollateFn(float_pad_value=0.0, int_pad_value=-1)
@classmethod
def build_preprocess_fn(
cls, args: argparse.Namespace, train: bool
) -> Optional[Callable[[str, Dict[str, np.array]], Dict[str, np.ndarray]]]:
assert check_argument_types()
# if args.use_preprocessor:
# retval = CommonPreprocessor(
# train=train,
# token_type=args.token_type,
# token_list=args.token_list,
# bpemodel=None,
# non_linguistic_symbols=None,
# text_cleaner=None,
# g2p_type=None,
# split_with_space=args.split_with_space if hasattr(args, "split_with_space") else False,
# seg_dict_file=args.seg_dict_file if hasattr(args, "seg_dict_file") else None,
# # NOTE(kamo): Check attribute existence for backward compatibility
# rir_scp=args.rir_scp if hasattr(args, "rir_scp") else None,
# rir_apply_prob=args.rir_apply_prob
# if hasattr(args, "rir_apply_prob")
# else 1.0,
# noise_scp=args.noise_scp if hasattr(args, "noise_scp") else None,
# noise_apply_prob=args.noise_apply_prob
# if hasattr(args, "noise_apply_prob")
# else 1.0,
# noise_db_range=args.noise_db_range
# if hasattr(args, "noise_db_range")
# else "13_15",
# speech_volume_normalize=args.speech_volume_normalize
# if hasattr(args, "rir_scp")
# else None,
# )
# else:
# retval = None
# assert check_return_type(retval)
return None
@classmethod
def required_data_names(
cls, train: bool = True, inference: bool = False
) -> Tuple[str, ...]:
if not inference:
retval = ("speech", )
else:
# Recognition mode
retval = ("speech", )
return retval
@classmethod
def optional_data_names(
cls, train: bool = True, inference: bool = False
) -> Tuple[str, ...]:
retval = ()
assert check_return_type(retval)
return retval
@classmethod
def build_model(cls, args: argparse.Namespace):
assert check_argument_types()
# 1. frontend
if args.input_size is None or args.frontend == "wav_frontend_mel23":
# Extract features in the model
frontend_class = frontend_choices.get_class(args.frontend)
if args.frontend == 'wav_frontend':
frontend = frontend_class(cmvn_file=args.cmvn_file, **args.frontend_conf)
else:
frontend = frontend_class(**args.frontend_conf)
input_size = frontend.output_size()
else:
# Give features from data-loader
args.frontend = None
args.frontend_conf = {}
frontend = None
input_size = args.input_size
# 2. Encoder
encoder_class = encoder_choices.get_class(args.encoder)
encoder = encoder_class(**args.encoder_conf)
# 3. EncoderDecoderAttractor
encoder_decoder_attractor_class = encoder_decoder_attractor_choices.get_class(args.encoder_decoder_attractor)
encoder_decoder_attractor = encoder_decoder_attractor_class(**args.encoder_decoder_attractor_conf)
# 9. Build model
model_class = model_choices.get_class(args.model)
model = model_class(
frontend=frontend,
encoder=encoder,
encoder_decoder_attractor=encoder_decoder_attractor,
**args.model_conf,
)
# 10. Initialize
if args.init is not None:
initialize(model, args.init)
assert check_return_type(model)
return model
# ~~~~~~~~~ The methods below are mainly used for inference ~~~~~~~~~
@classmethod
def build_model_from_file(
cls,
config_file: Union[Path, str] = None,
model_file: Union[Path, str] = None,
cmvn_file: Union[Path, str] = None,
device: str = "cpu",
):
"""Build model from the files.
This method is used for inference or fine-tuning.
Args:
config_file: The yaml file saved when training.
model_file: The model file saved when training.
cmvn_file: The cmvn file for front-end
device: Device type, "cpu", "cuda", or "cuda:N".
"""
assert check_argument_types()
if config_file is None:
assert model_file is not None, (
"The argument 'model_file' must be provided "
"if the argument 'config_file' is not specified."
)
config_file = Path(model_file).parent / "config.yaml"
else:
config_file = Path(config_file)
with config_file.open("r", encoding="utf-8") as f:
args = yaml.safe_load(f)
args = argparse.Namespace(**args)
model = cls.build_model(args)
if not isinstance(model, AbsESPnetModel):
raise RuntimeError(
f"model must inherit {AbsESPnetModel.__name__}, but got {type(model)}"
)
if model_file is not None:
if device == "cuda":
device = f"cuda:{torch.cuda.current_device()}"
checkpoint = torch.load(model_file, map_location=device)
if "state_dict" in checkpoint.keys():
model.load_state_dict(checkpoint["state_dict"])
else:
model.load_state_dict(checkpoint)
model.to(device)
return model, args
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