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https://github.com/YaoFANGUK/video-subtitle-remover.git
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42 lines
1.2 KiB
Python
42 lines
1.2 KiB
Python
import torch
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from torch.autograd import Variable
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import numpy as np
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import collections
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__all__ = ['as_variable', 'as_numpy', 'mark_volatile']
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def as_variable(obj):
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if isinstance(obj, Variable):
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return obj
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if isinstance(obj, collections.Sequence):
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return [as_variable(v) for v in obj]
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elif isinstance(obj, collections.Mapping):
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return {k: as_variable(v) for k, v in obj.items()}
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else:
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return Variable(obj)
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def as_numpy(obj):
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if isinstance(obj, collections.Sequence):
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return [as_numpy(v) for v in obj]
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elif isinstance(obj, collections.Mapping):
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return {k: as_numpy(v) for k, v in obj.items()}
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elif isinstance(obj, Variable):
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return obj.data.cpu().numpy()
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elif torch.is_tensor(obj):
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return obj.cpu().numpy()
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else:
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return np.array(obj)
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def mark_volatile(obj):
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if torch.is_tensor(obj):
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obj = Variable(obj)
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if isinstance(obj, Variable):
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obj.no_grad = True
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return obj
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elif isinstance(obj, collections.Mapping):
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return {k: mark_volatile(o) for k, o in obj.items()}
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elif isinstance(obj, collections.Sequence):
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return [mark_volatile(o) for o in obj]
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else:
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return obj
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