export declare namespace subtitle {
    enum SubtitleFormat {
        AUTO = "auto",
        SRT = "srt",
        VTT = "vtt"
    }
    interface Subtitle {
        meta: MetaInfo;
        items: SubtitleItem[];
    }
    interface MetaInfo {
        header: string;
        format: SubtitleFormat;
        kind: string;
        language: string;
    }
    interface SubtitleItem {
        cue: string;
        startTime: number;
        endTime: number;
        text: string;
    }
    function parse(text: string, format?: SubtitleFormat): Subtitle;
    function stringify(subtitle: Subtitle, format?: SubtitleFormat): string;
}