static int parse_ptl(HEVCContext *s, PTL *ptl, int max_num_sub_layers)

{

    int i;

    HEVCLocalContext *lc = s->HEVClc;

    GetBitContext *gb = &lc->gb;

    decode_profile_tier_level(s, &ptl->general_PTL);

    ptl->general_PTL.level_idc = get_bits(gb, 8);



    for (i = 0; i < max_num_sub_layers - 1; i++) {

        ptl->sub_layer_profile_present_flag[i] = get_bits1(gb);

        ptl->sub_layer_level_present_flag[i]   = get_bits1(gb);

    }

    if (max_num_sub_layers - 1> 0)

        for (i = max_num_sub_layers - 1; i < 8; i++)

            skip_bits(gb, 2); // reserved_zero_2bits[i]

    for (i = 0; i < max_num_sub_layers - 1; i++) {

        if (ptl->sub_layer_profile_present_flag[i])

            decode_profile_tier_level(s, &ptl->sub_layer_PTL[i]);

        if (ptl->sub_layer_level_present_flag[i])

            ptl->sub_layer_PTL[i].level_idc = get_bits(gb, 8);

    }

    return 0;

}
