wehub-resource-sync
29 lines
1000 B
Python
29 lines
1000 B
Python
from utils.hparams import hparams
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class BaseAugmentation:
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"""
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Base class for data augmentation.
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All methods of this class should be thread-safe.
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1. *process_item*:
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Apply augmentation to one piece of data.
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"""
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def __init__(self, data_dirs: list, augmentation_args: dict):
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self.raw_data_dirs = data_dirs
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self.augmentation_args = augmentation_args
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self.timestep = hparams['hop_size'] / hparams['audio_sample_rate']
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def process_item(self, item: dict, **kwargs) -> dict:
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raise NotImplementedError()
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def require_same_keys(func):
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def run(*args, **kwargs):
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item: dict = args[1]
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res: dict = func(*args, **kwargs)
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assert set(item.keys()) == set(res.keys()), 'Item keys mismatch after augmentation.\n' \
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f'Before: {sorted(item.keys())}\n' \
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f'After: {sorted(res.keys())}'
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return res
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return run
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