Class GbFileHelper

Android/easygbs/src/main/java/com/easygbs/GbFileHelper.java:28–270

import java.util.regex.Pattern;

public class GbFileHelper {

    private static String TAG = "GbFileHelper";

    private static Context mContext;
    private static String pPath;

    private static final DateTimeFormatter FORMATTER_DIGIT = DateTimeFormatter.ofPattern("yyyyMMddHHmmss").withLocale(Locale.US);
    // 输出格式：2025-11-30T13:39:56
    private static final DateTimeFormatter FORMATTER_ISO = DateTimeFormatter.ofPattern("yyyy-MM-dd'T'HH:mm:ss").withLocale(Locale.US);

    // 任务ID计数器
    private static int taskId = 0;

    // 存储 params -> taskId 的映射
    private static final Map<String, Integer> paramsToTaskIdMap = new HashMap<>();

    // 存储 taskId -> RecordMp4 列表的映射
    private static final Map<Integer, List<Mp4Record>> taskIdToRecordFilesMap = new HashMap<>();


    public static void setContext(Context context) {
        mContext = context;
    }

    public static void setRecordPath(String path) {
        pPath = path;
    }

    //    {StartTime:"2025-12-10T00:00:00",EndTime:"2025-12-10T23:59:59","cIndex":"0"}
    public static int getTaskID(byte[] param) {

        if (param == null) {
            Log.e(TAG, "getTaskID param is null");
            return -1;
        }
        String params = new String(param, StandardCharsets.UTF_8);
        // 如果参数已存在，返回已有的taskId
        Integer existingTaskId = paramsToTaskIdMap.get(params);
        if (existingTaskId != null) {
            return existingTaskId;
        }

        // 生成新的taskId
        int newTaskId = ++taskId;

        // 保存映射关系
        paramsToTaskIdMap.put(params, newTaskId);

        // 为新的taskId创建文件信息列表（根据params参数动态生成文件列表）
        List<Mp4Record> fileList = getMp4RecordFiles(params);
        taskIdToRecordFilesMap.put(newTaskId, fileList);

        return newTaskId;
    }

    public static int getSumNum(int taskId) {
        if (!taskIdToRecordFilesMap.containsKey(taskId)) {