import { C64FileInfo } from '../types/index.js';
export declare class TapePulseDecoder {
    static readonly CLOCK_CYCLES = 985248;
    private static readonly THRESHOLD_SHORT_MAX;
    private static readonly THRESHOLD_MEDIUM_MAX;
    private static readonly THRESHOLD_PAUSE_MIN;
    private static readonly COUNTDOWN_FIRST;
    private static readonly COUNTDOWN_SECOND;
    private static readonly HEADER_CONTENT_SIZE;
    private static readonly MAX_DATA_BLOCK_BYTES;
    private static readonly MIN_PILOT_LENGTH;
    private static readonly CBM_TYPE_MAP;
    /**
     * Decode C64 programs from a stream of pulse cycles.
     * Uses pilot detection (runs of consecutive SHORT pulses) to locate
     * block boundaries, making it robust against small pulse discrepancies.
     */
    decodeProgramsFromPulses(pulseCycles: number[], onProgress?: (current: number, total: number) => void): C64FileInfo[];
    /**
     * Merge consecutive header+data pairs into single files if they match the Turbo Tape format
     */
    private mergeTurboData;
    /**
     * Extract pulse cycles from a TAP buffer. Handles V0 and V1 formats.
     */
    readTapPulses(buffer: Buffer, onProgress?: (current: number, total: number) => void): number[];
    /**
     * Find pilot sequences: runs of consecutive SHORT pulses.
     * These signal the start of a data block in C64 tape format.
     */
    private findPilots;
    /**
     * Try to decode a block of bytes starting from the given index.
     * Stops after maxBytes have been decoded, or when EOB is found.
     */
    private tryDecodeBlockBounded;
    private classifyPulse;
    private tryDecodeByte;
    private findNextByteStart;
    private isEndOfBlock;
    private isCountdown;
    private cbmTypeFromHeader;
    private parseHeaderBlock;
    private isHeaderBlock;
}
//# sourceMappingURL=tapePulseDecoder.d.ts.map