def __call__(self, clip):
        """
        Args:
            clip (torch.tensor): Video clip to be cropped. Size is (C, T, H, W)
        Returns:
            torch.tensor: randomly cropped/resized video clip.
                size is (C, T, OH, OW)
        """
        i, j, h, w = self.get_params(clip, self.size)
        return crop(clip, i, j, h, w)

        Args:
            clip (torch.tensor): Video clip to be cropped. Size is (C, T, H, W)
        Returns:
            torch.tensor: randomly cropped/resized video clip.
                size is (C, T, OH, OW)
        
dataset/transforms.py