MosIng/vits-models

1from numpy import zeros, int32, float32
2from torch import from_numpy
3
4from .core import maximum_path_jit
5
6
7def maximum_path(neg_cent, mask):
8    """ numba optimized version.
9    neg_cent: [b, t_t, t_s]
10    mask: [b, t_t, t_s]
11    """
12    device = neg_cent.device
13    dtype = neg_cent.dtype
14    neg_cent = neg_cent.data.cpu().numpy().astype(float32)
15    path = zeros(neg_cent.shape, dtype=int32)
16
17    t_t_max = mask.sum(1)[:, 0].data.cpu().numpy().astype(int32)
18    t_s_max = mask.sum(2)[:, 0].data.cpu().numpy().astype(int32)
19    maximum_path_jit(path, neg_cent, t_t_max, t_s_max)
20    return from_numpy(path).to(device=device, dtype=dtype)
21