def padded_openface_features(self, seq, max_sen_len=20, left_pad=1):
    seq = seq[0:max_sen_len]
    return np.concatenate((np.zeros(((max_sen_len - len(seq)), self.of_d)), seq), axis=0)
def padded_openface_features(self, seq, max_sen_len=20, left_pad=1):
    seq = seq[0:max_sen_len]
    return np.concatenate((np.zeros(((max_sen_len - len(seq)), self.of_d)), seq), axis=0)