/** @packageDocumentation FLAC picture metadata block — parsing and rendering. */
import { ByteVector } from "../byteVector.js";
/**
 * FLAC picture type codes (matching FLAC__STREAM_METADATA_PICTURE_TYPE_*).
 * @enum
 */
export declare enum FlacPictureType {
    /** Other */
    other = 0,
    /** 32x32 pixels "file icon" (PNG only) */
    fileIconStandard = 1,
    /** General file icon */
    fileIcon = 2,
    /** Cover (front) */
    frontCover = 3,
    /** Cover (back) */
    backCover = 4,
    /** Leaflet page */
    leafletPage = 5,
    /** Media (e.g. label side of CD) */
    media = 6,
    /** Lead artist / lead performer / soloist */
    leadArtist = 7,
    /** Artist / performer */
    artist = 8,
    /** Conductor */
    conductor = 9,
    /** Band / Orchestra */
    band = 10,
    /** Composer */
    composer = 11,
    /** Lyricist / text writer */
    lyricist = 12,
    /** Recording location */
    recordingLocation = 13,
    /** During recording */
    duringRecording = 14,
    /** During performance */
    duringPerformance = 15,
    /** Movie / video screen capture */
    videoScreenCapture = 16,
    /** A bright coloured fish */
    fish = 17,
    /** Illustration */
    illustration = 18,
    /** Band / artist logotype */
    bandLogotype = 19,
    /** Publisher / studio logotype */
    publisherLogotype = 20
}
/**
 * FLAC picture metadata block. All integer fields are big-endian.
 *
 * Layout:
 *   pictureType(4) + mimeTypeLength(4) + mimeType(UTF-8) +
 *   descriptionLength(4) + description(UTF-8) +
 *   width(4) + height(4) + colorDepth(4) + numColors(4) +
 *   dataLength(4) + data
 */
export declare class FlacPicture {
    /** Picture type code as defined by the ID3v2 APIC frame (e.g. 3 = cover art). */
    pictureType: FlacPictureType;
    /** MIME type string (e.g. `"image/jpeg"`). */
    mimeType: string;
    /** UTF-8 description of the picture. */
    description: string;
    /** Image width in pixels. */
    width: number;
    /** Image height in pixels. */
    height: number;
    /** Colour depth (bits per pixel). */
    colorDepth: number;
    /** Number of colours for indexed images, or 0 for non-indexed formats. */
    numColors: number;
    /** Raw binary image data. */
    data: ByteVector;
    /**
     * Parse a FLAC picture block from raw bytes.
     * @param data The raw picture block payload (big-endian integers).
     * @returns A {@link FlacPicture} populated from the data, or a default instance if the data is too short.
     */
    static parse(data: ByteVector): FlacPicture;
    /**
     * Render the picture block back to bytes (big-endian).
     * @returns A {@link ByteVector} containing the serialised picture block payload.
     */
    render(): ByteVector;
}
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