/** @packageDocumentation ID3v2 general encapsulated object frame (GEOB). Stores arbitrary binary objects with metadata. */
import { ByteVector, StringType } from "../../../byteVector.js";
import { Id3v2Frame, Id3v2FrameHeader } from "../id3v2Frame.js";
/**
 * General encapsulated object frame (GEOB).
 *
 * Structure: encoding(1) + mimeType(null-terminated Latin1)
 *            + fileName(null-terminated in encoding)
 *            + description(null-terminated in encoding) + objectData.
 */
export declare class GeneralEncapsulatedObjectFrame extends Id3v2Frame {
    /** Text encoding used for the file name and description fields. */
    private _encoding;
    /** MIME type of the encapsulated object, stored as a null-terminated Latin1 string. */
    private _mimeType;
    /** File name associated with the encapsulated object. */
    private _fileName;
    /** Human-readable description of the encapsulated object. */
    private _description;
    /** Raw binary payload of the encapsulated object. */
    private _object;
    /**
     * Creates a new, empty GEOB frame.
     * @param encoding - Text encoding to use for the file name and description fields. Defaults to UTF-8.
     */
    constructor(encoding?: StringType);
    /** Gets the text encoding used for the file name and description fields. */
    get encoding(): StringType;
    /** Sets the text encoding used for the file name and description fields. */
    set encoding(e: StringType);
    /** Gets the MIME type of the encapsulated object. */
    get mimeType(): string;
    /** Sets the MIME type of the encapsulated object. */
    set mimeType(value: string);
    /** Gets the file name associated with the encapsulated object. */
    get fileName(): string;
    /** Sets the file name associated with the encapsulated object. */
    set fileName(value: string);
    /** Gets the human-readable description of the encapsulated object. */
    get description(): string;
    /** Sets the human-readable description of the encapsulated object. */
    set description(value: string);
    /** Gets the raw binary payload of the encapsulated object. */
    get object(): ByteVector;
    /** Sets the raw binary payload of the encapsulated object. */
    set object(data: ByteVector);
    /**
     * Returns the description of the encapsulated object.
     * @returns The description string stored in this frame.
     */
    toString(): string;
    /** @internal Create from raw frame data. */
    static fromData(data: ByteVector, header: Id3v2FrameHeader, version: number): GeneralEncapsulatedObjectFrame;
    /**
     * Parses the binary payload of the GEOB frame.
     * @param data - Raw field bytes beginning with the encoding byte.
     * @param _version - ID3v2 version (unused; parsing is version-independent).
     */
    protected parseFields(data: ByteVector, _version: number): void;
    /**
     * Serialises the frame fields into a binary payload.
     * @param _version - ID3v2 version (unused; rendering is version-independent).
     * @returns A `ByteVector` containing the encoding byte, null-terminated MIME type, null-terminated file name, null-terminated description, and the raw object data.
     */
    protected renderFields(_version: number): ByteVector;
}
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