import { BitData } from "./BitData.js";
import { Tape } from "./Tape.js";
import { TapeDecoder } from "./TapeDecoder.js";
import { TapeDecoderState } from "./TapeDecoderState.js";
import { ByteData } from "./ByteData.js";
import { Program } from "./Program.js";
import { WaveformAnnotation } from "./Annotations.js";
/**
 * Decodes high-speed (1500 baud) cassettes.
 */
export declare class HighSpeedTapeDecoder implements TapeDecoder {
    private readonly tape;
    private readonly lengthMultiplier;
    private state;
    private readonly programBytes;
    private readonly bits;
    private readonly byteData;
    constructor(tape: Tape);
    getName(): string;
    isHighSpeed(): boolean;
    findNextProgram(startFrame: number, waveformAnnotations: WaveformAnnotation[]): Program | undefined;
    /**
     * Find the next bit, starting at the positive crossing of the end of the previous bit. Returns
     * the positive crossing at the end of this bit, and the value of the bit. The bit is undefined
     * if the length was too short or too long. Returns undefined if we ran off the end of the tape.
     */
    private findBit;
    /**
     * Find the next positive crossing, starting at startFrame. If none is found, returns undefined.
     */
    private findPositiveCrossing;
    /**
     * Read a sequence of bits (the characters "0" and "1"). This is for testing.
     */
    readBits(frame: number): [string, WaveformAnnotation[], string[]];
    getState(): TapeDecoderState;
    getBinary(): Uint8Array;
    getBitData(): BitData[];
    getByteData(): ByteData[];
}
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