reshaping a tensor with padding in pytorch

Question

I have a tensor with dimensions (30, 35, 49). I want to reshape it to (30, 35, 512) in order to be able to multiply with another tensor which has also

Answer 1

A module that might be clearer and more suitable for this question is torch.nn.ConstantPad1d e.g.

import torch
from torch import nn

x = torch.ones(30, 35, 49)
padded = nn.ConstantPad1d((0, 512 - 49), 0)(x)