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Data.copy_masked #674

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Merged
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Sep 21, 2021
Merged

Data.copy_masked #674

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12 changes: 12 additions & 0 deletions returnn/tf/util/data.py
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Original file line number Diff line number Diff line change
Expand Up @@ -3298,6 +3298,18 @@ def get_sequence_mask_broadcast(self, axis=None):
assert seq_mask.get_shape().ndims == self.batch_ndim
return seq_mask

def copy_masked(self, mask_value):
"""
:param float|int mask_value:
:rtype: Data
"""
assert self.placeholder is not None
from .basic import mask_dyn_seq_len_nd
dyn_axes = [axis for axis, dim in enumerate(self.dim_tags) if not dim.is_batch_dim() and dim.dimension is None]
res = self.copy()
res.placeholder = mask_dyn_seq_len_nd(self, pad_value=mask_value, axes=dyn_axes)
return res

def get_batch_dim(self):
"""
:rtype: tf.Tensor|int
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