export type ChipName = "sn76489" | "gameGearStereo" | "ym2413" | "ym2612" | "ym2151" | "segaPcm" | "rf5c68" | "ym2203" | "ym2608" | "ym2610" | "ym3812" | "ym3526" | "y8950" | "ymf262" | "ymf278b" | "ymf271" | "ymz280b" | "rf5c164" | "pwm" | "ay8910" | "gameBoyDmg" | "nesApu" | "multiPcm" | "upd7759" | "okim6258" | "okim6295" | "k051649" | "k054539" | "huc6280" | "c140" | "k053260" | "pokey" | "qsound" | "scsp" | "wonderSwan" | "vsu" | "saa1099" | "es5503" | "es5506" | "x1_010" | "c352" | "ga20" | "unknown";
export type ChipOrVariantName = ChipName | YM2413VariantName | YM2151VariantName | YM2610VariantName | YM2612VariantName | ES5506VariantName | AY8910VariantName | C140VariantName;
export type YM2413VariantName = "ym2413" | "vrc7";
export type YM2151VariantName = "ym2151" | "ym2164";
export type YM2610VariantName = "ym2610" | "ym2610b";
export type YM2612VariantName = "ym2612" | "ym3438";
export type ES5506VariantName = "es5505" | "es5506";
export type AY8910VariantName = "ay8910" | "ay8912" | "ay8913" | "ay8930" | "ym2149" | "ym3439" | "ymz284" | "ymz294" | "unknown";
export type C140VariantName = "c140" | "c140_system_21" | "asic_219" | "unknown";
export declare function chipIdToName(chipId: number): ChipName | undefined;
export type ChipTypeObject<V extends string = string> = {
    value: number;
    name: V;
};
export type ChipClockObject<V extends string = string> = {
    clock: number;
    dual?: boolean;
    flags?: number;
    chipType?: ChipTypeObject<V>;
};
export type ChipsObject = {
    sn76489?: ChipClockObject & {
        feedback?: number;
        shiftRegisterWidth?: number;
        t6w28?: boolean;
    };
    gameGearStereo?: null;
    ym2413?: ChipClockObject<YM2413VariantName>;
    ym2612?: ChipClockObject<YM2612VariantName>;
    ym2151?: ChipClockObject<YM2151VariantName>;
    segaPcm?: ChipClockObject & {
        interfaceRegister?: number;
    };
    rf5c68?: ChipClockObject;
    ym2203?: ChipClockObject & {
        ssgFlags?: number;
    };
    ym2608?: ChipClockObject & {
        ssgFlags?: number;
    };
    ym2610?: ChipClockObject<YM2610VariantName>;
    ym3812?: ChipClockObject;
    ym3526?: ChipClockObject;
    y8950?: ChipClockObject;
    ymf262?: ChipClockObject;
    ymf278b?: ChipClockObject;
    ymf271?: ChipClockObject;
    ymz280b?: ChipClockObject;
    rf5c164?: ChipClockObject;
    pwm?: ChipClockObject;
    ay8910?: ChipClockObject<AY8910VariantName>;
    gameBoyDmg?: ChipClockObject;
    nesApu?: ChipClockObject & {
        fds?: boolean;
    };
    multiPcm?: ChipClockObject;
    upd7759?: ChipClockObject;
    okim6258?: ChipClockObject;
    okim6295?: ChipClockObject;
    k051649?: ChipClockObject;
    k054539?: ChipClockObject;
    huc6280?: ChipClockObject;
    c140?: ChipClockObject<C140VariantName>;
    k053260?: ChipClockObject;
    pokey?: ChipClockObject;
    qsound?: ChipClockObject;
    scsp?: ChipClockObject;
    wonderSwan?: ChipClockObject;
    vsu?: ChipClockObject;
    saa1099?: ChipClockObject;
    es5503?: ChipClockObject & {
        numberOfChannels?: number;
    };
    es5506?: ChipClockObject<ES5506VariantName> & {
        numberOfChannels?: number;
    };
    x1_010?: ChipClockObject;
    c352?: ChipClockObject & {
        clockDivider?: number;
    };
    ga20?: ChipClockObject;
    unknown?: null;
};
export declare function deepCloneChipsObject(chips: ChipsObject): any;
export type GD3TagObject = {
    version: number;
    size: number;
    trackTitle: string;
    gameName: string;
    system: string;
    composer: string;
    releaseDate: string;
    vgmBy: string;
    notes: string;
    japanese: {
        trackTitle: string;
        gameName: string;
        system: string;
        composer: string;
    };
};
export type ExtraChipClockObject = {
    chip: ChipName;
    chipId: number;
    clock: number;
};
export type ExtraChipVolumeObject = {
    chip: ChipName;
    chipId: number;
    paired: boolean;
    flags: number;
    volume: number;
    absolute: boolean;
};
export type ExtraHeaderObject = {
    clocks?: Array<ExtraChipClockObject>;
    volumes?: Array<ExtraChipVolumeObject>;
};
export declare function deepCloneExtraHeaderObject(arg: ExtraHeaderObject | undefined): ExtraHeaderObject | undefined;
export declare function createEmptyGD3TagObject(): GD3TagObject;
export declare function deepCloneGD3TagObject(arg: GD3TagObject | undefined): GD3TagObject | undefined;
export type VersionObject = {
    /** raw version code (ex. 0x0170) */
    code: number;
    /** major major version number in string (ex. "1"). */
    major: string;
    /** minor version number in 2 digit string (ex. "70").*/
    minor: string;
};
export type OffsetsObject = {
    /** offset to end of file, relative from the top of the vgm file. */
    eof: number;
    /** offset to gd3 tag, relative from the top of the vgm file. 0 if no gd3 tag is present. */
    gd3: number;
    /** offset to loop point, relative from the top of the vgm file. 0 if no loop is present. */
    loop: number;
    /** offset to VGM data stream, relative from the top of the vgm file. */
    data: number;
    /** offset to extra header, relative from the top of the vgm file. 0 if no extra header is present. */
    extraHeader: number;
};
export type SamplesObject = {
    /** Total of all wait values in the file. */
    total: number;
    /** Total of all wait values between the loop point and the end of the file, or 0 if there is no loop. */
    loop: number;
};
export type VGMObject = {
    version: VersionObject;
    offsets: OffsetsObject;
    samples: SamplesObject;
    rate: number;
    chips: ChipsObject;
    loopModifier: number;
    loopBase: number;
    volumeModifier: number;
    extraHeader?: ExtraHeaderObject;
    data: ArrayBuffer;
    gd3tag?: GD3TagObject;
};
export declare function deepCloneVGMObject(arg: VGMObject): VGMObject;
export declare function createEmptyVGMObject(): VGMObject;
export declare function calcGD3TagBodySize(obj: GD3TagObject): number;
export declare function calcExtraHeaderSize(obj: ExtraHeaderObject): number;
export declare function updateOffsets(obj: VGMObject): void;