{
    "VideoFileManage": {
        "min_duration-comment":"最小duration, 单位秒, 合并时文件时长小于此值,报错,不做合并",
        "min_duration": 10,
        "max_duration-comment":"最大duration, 单位秒, 合并时文件时长大于此值,报错,不做合并",
        "max_duration": 120
    }
}