fix(webcodec): fix a h265 header parsing issue

// cspell: ignore texmc

// cspell: ignore rbsp

// cspell: ignore cprms

// cspell: ignore nalu

// cspell: ignore sodb

// cspell: ignore luma

import { NaluSodbBitReader, annexBSplitNalu } from "./nalu.js";

    const log2_max_pic_order_cnt_lsb_minus4 =

        reader.decodeExponentialGolombNumber();

    let sps_max_dec_pic_buffering_minus1: number[] | undefined;

    let sps_max_num_reorder_pics: number[] | undefined;

    let sps_max_latency_increase_plus1: number[] | undefined;

    const sps_max_dec_pic_buffering_minus1: number[] = [];

    const sps_max_num_reorder_pics: number[] = [];

    const sps_max_latency_increase_plus1: number[] = [];

    const sps_sub_layer_ordering_info_present_flag = !!reader.next();

    for (

        let i = sps_sub_layer_ordering_info_present_flag

        i <= sps_max_sub_layers_minus1;

        i += 1

    ) {

        sps_max_dec_pic_buffering_minus1 = [];

        sps_max_num_reorder_pics = [];

        sps_max_latency_increase_plus1 = [];

        for (let i = 0; i <= sps_max_sub_layers_minus1; i += 1) {

        sps_max_dec_pic_buffering_minus1[i] =

            reader.decodeExponentialGolombNumber();

            sps_max_num_reorder_pics[i] =

                reader.decodeExponentialGolombNumber();

        sps_max_num_reorder_pics[i] = reader.decodeExponentialGolombNumber();

        sps_max_latency_increase_plus1[i] =

            reader.decodeExponentialGolombNumber();

    }

    }

    const log2_min_luma_coding_block_size_minus3 =

        reader.decodeExponentialGolombNumber();

    const vui_parameters_present_flag = !!reader.next();

    let vuiParameters: H265VuiParameters | undefined;

    if (vui_parameters_present_flag) {

        vuiParameters = h265ParseVuiParameters(reader);

        vuiParameters = h265ParseVuiParameters(

            reader,

            sps_max_sub_layers_minus1,

        );

    }

    const sps_extension_present_flag = !!reader.next();

/**

 * E.2.1 VUI parameters syntax

 */

export function h265ParseVuiParameters(reader: NaluSodbBitReader) {

export function h265ParseVuiParameters(

    reader: NaluSodbBitReader,

    sps_max_sub_layers_minus1: number,

) {

    const aspect_ratio_info_present_flag = !!reader.next();

    let aspect_ratio_idc: number | undefined;

    let sar_width: number | undefined;

    let vui_poc_proportional_to_timing_flag: boolean | undefined;

    let vui_num_ticks_poc_diff_one_minus1: number | undefined;

    let vui_hrd_parameters_present_flag: boolean | undefined;

    let vui_hrd_parameters: H265HrdParameters | undefined;

    if (vui_timing_info_present_flag) {

        vui_num_units_in_tick = reader.read(32);

        vui_time_scale = reader.read(32);

        }

        vui_hrd_parameters_present_flag = !!reader.next();

        if (vui_hrd_parameters_present_flag) {

            throw new Error("Not implemented");

            vui_hrd_parameters = h265ParseHrdParameters(

                reader,

                true,

                sps_max_sub_layers_minus1,

            );

        }

    }

        vui_poc_proportional_to_timing_flag,

        vui_num_ticks_poc_diff_one_minus1,

        vui_hrd_parameters_present_flag,

        vui_hrd_parameters,

        bitstream_restriction_flag,

        tiles_fixed_structure_flag,