"""Vendored from yxlu-0102/AP-BWE (MIT license), TRIMMED.

Original utils.py imports matplotlib at module level for plot_spectrogram(),
which our wrapper never calls. Dropping that import entirely rather than
adding matplotlib as a new production dependency just to satisfy an unused
import. Only init_weights/get_padding (actually needed by models/model.py)
are kept.
"""


def init_weights(m, mean=0.0, std=0.01):
    classname = m.__class__.__name__
    if classname.find("Conv") != -1:
        m.weight.data.normal_(mean, std)


def get_padding(kernel_size, dilation=1):
    return int((kernel_size * dilation - dilation) / 2)


def get_padding_2d(kernel_size, dilation=(1, 1)):
    return (
        int((kernel_size[0] * dilation[0] - dilation[0]) / 2),
        int((kernel_size[1] * dilation[1] - dilation[1]) / 2),
    )