/// <reference types="node" />
export declare class PicBitstreamReader {
    bitstream: Buffer;
    bitOffset: number;
    constructor(bitstream: Buffer);
    get byteOffset(): number;
    readCode(bitLength: number): number;
    peekCode(bitLength: number): number;
    seekBits(bits: number): void;
    done(): boolean;
}
export declare class PicBitstreamWriter {
    currentByte: number;
    currentByteOffset: number;
    bytes: number[];
    finish(): Buffer;
    flushCurrentByte(): void;
    writeCode(code: number, bitLength: number): void;
}
export declare class LZWBitstreamReader {
    bitstream: Buffer;
    bitOffset: number;
    inputBitBuffer: number;
    inputBitCount: number;
    bitstreamBitLength: number;
    constructor(bitstream: Buffer);
    get byteOffset(): number;
    readCode(bitLength: number): number;
    peekCode(bitLength: number): number;
    seekBits(bits: number): void;
    done(): boolean;
}
export declare class LZWBitstreamWriter extends PicBitstreamWriter {
    writeCode(code: number, bitLength: number): void;
}