    def __call__(self, clip):
        """
        Args:
            clip (torch.tensor): video clip must be normalized. Size is (C, T, H, W)
        """
        return normalize(clip, self.mean, self.std, self.inplace)
Args:
clip (torch.tensor): video clip must be normalized. Size is (C, T, H, W)
opensora/models/causalvideovae/dataset/transform.py