/**
 * EMK to KAR Converter Utility
 *
 * Provides easy conversion from EMK (Extreme Karaoke) files to KAR format
 * using @karaplay/file-coder library
 */
/**
 * Conversion result interface
 */
export interface EmkConversionResult {
    /** Converted KAR file as ArrayBuffer */
    karBuffer: Buffer;
    /** Song metadata */
    metadata: {
        title?: string;
        artist?: string;
        code?: string;
    };
    /** Original filename */
    filename: string;
    /** Success flag */
    success: boolean;
    /** Error message if failed */
    error?: string;
}
/**
 * Convert EMK file to KAR format (Browser)
 *
 * @param file - EMK file (File or Blob)
 * @param options - Conversion options
 * @returns Conversion result with KAR buffer
 */
export declare function convertEmkToKarBrowser(file: File | Blob, options?: {
    /** Filename for the output (default: from input file) */
    outputFilename?: string;
}): Promise<EmkConversionResult>;
/**
 * Check if a file is an EMK file
 *
 * @param file - File to check
 * @returns true if file is EMK
 */
export declare function isEmkFile(file: File | Blob): boolean;
/**
 * Check if a filename is EMK
 *
 * @param filename - Filename to check
 * @returns true if filename ends with .emk
 */
export declare function isEmkFilename(filename: string): boolean;
/**
 * Get file extension
 *
 * @param filename - Filename
 * @returns File extension (lowercase)
 */
export declare function getFileExtension(filename: string): string;