mirror of
https://github.com/modelscope/FunASR
synced 2025-09-15 14:48:36 +08:00
113 lines
3.0 KiB
Python
113 lines
3.0 KiB
Python
from funasr.layers.global_mvn import GlobalMVN
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from funasr.layers.utterance_mvn import UtteranceMVN
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from funasr.models.data2vec import Data2VecPretrainModel
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from funasr.models.encoder.data2vec_encoder import Data2VecEncoder
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from funasr.models.frontend.default import DefaultFrontend
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from funasr.models.frontend.windowing import SlidingWindow
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from funasr.models.frontend.wav_frontend import WavFrontend
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from funasr.models.specaug.specaug import SpecAug
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from funasr.torch_utils.initialize import initialize
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from funasr.train.class_choices import ClassChoices
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frontend_choices = ClassChoices(
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name="frontend",
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classes=dict(
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default=DefaultFrontend,
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sliding_window=SlidingWindow,
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wav_frontend=WavFrontend,
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),
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default="default",
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)
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specaug_choices = ClassChoices(
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name="specaug",
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classes=dict(specaug=SpecAug),
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default=None,
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optional=True,
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)
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normalize_choices = ClassChoices(
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"normalize",
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classes=dict(
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global_mvn=GlobalMVN,
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utterance_mvn=UtteranceMVN,
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),
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default=None,
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optional=True,
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)
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encoder_choices = ClassChoices(
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"encoder",
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classes=dict(
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data2vec_encoder=Data2VecEncoder,
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),
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default="data2vec_encoder",
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)
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model_choices = ClassChoices(
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"model",
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classes=dict(
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data2vec=Data2VecPretrainModel,
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),
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default="data2vec",
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)
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class_choices_list = [
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# --frontend and --frontend_conf
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frontend_choices,
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# --specaug and --specaug_conf
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specaug_choices,
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# --normalize and --normalize_conf
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normalize_choices,
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# --encoder and --encoder_conf
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encoder_choices,
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# --model and --model_conf
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model_choices,
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]
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def build_pretrain_model(args):
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# frontend
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if args.input_size is None:
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frontend_class = frontend_choices.get_class(args.frontend)
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frontend = frontend_class(**args.frontend_conf)
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input_size = frontend.output_size()
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else:
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args.frontend = None
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args.frontend_conf = {}
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frontend = None
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input_size = args.input_size
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# data augmentation for spectrogram
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if args.specaug is not None:
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specaug_class = specaug_choices.get_class(args.specaug)
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specaug = specaug_class(**args.specaug_conf)
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else:
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specaug = None
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# normalization layer
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if args.normalize is not None:
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normalize_class = normalize_choices.get_class(args.normalize)
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normalize = normalize_class(**args.normalize_conf)
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else:
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normalize = None
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# encoder
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encoder_class = encoder_choices.get_class(args.encoder)
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encoder = encoder_class(
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input_size=input_size,
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**args.encoder_conf,
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)
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if args.model == "data2vec":
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model_class = model_choices.get_class("data2vec")
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model = model_class(
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frontend=frontend,
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specaug=specaug,
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normalize=normalize,
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encoder=encoder,
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)
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else:
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raise NotImplementedError("Not supported model: {}".format(args.model))
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# initialize
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if args.init is not None:
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initialize(model, args.init)
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return model
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