/* tslint:disable */
/* eslint-disable */

/**
 * Wavelet transform used for decorrelation.
 */
export enum CompressionMethod {
    Cdf97 = 0,
    Cdf53 = 1,
    Sym4 = 2,
    Db4 = 3,
}

/**
 * Compression options. Construct with `new CompressionOptions(...)`.
 */
export class CompressionOptions {
    free(): void;
    [Symbol.dispose](): void;
    /**
     * Build compression options.
     *
     * * `method` — wavelet transform.
     * * `scale` — quantization shift (used when `quantMultiplier` is absent).
     * * `cutoff` — detail-threshold aggressiveness.
     * * `entropyCoder` — payload coder; omit / pass `undefined` for `auto`.
     * * `quantMultiplier` — explicit coefficient multiplier; overrides `scale`
     *   so you can hit a precise PRD target instead of the power-of-two grid.
     */
    constructor(method: CompressionMethod, scale: QuantizationScale, cutoff: CutoffLevel, entropyCoder?: EntropyCoder | null, quantMultiplier?: number | null);
}

/**
 * Aggressiveness of the detail-coefficient threshold (dead-zone).
 */
export enum CutoffLevel {
    Low = 0,
    Medium = 1,
    High = 2,
}

/**
 * Entropy coder for the payload. `Cmodel` (significance-map + per-subband
 * magnitude) is the most efficient; omit the argument for `auto`.
 */
export enum EntropyCoder {
    Deflate = 0,
    Arans = 1,
    Cmodel = 2,
}

/**
 * Quantization shift: DWT coefficients are scaled by `1 << scale` when no
 * explicit `quantMultiplier` is given. Also selects the threshold table.
 */
export enum QuantizationScale {
    S6 = 6,
    S7 = 7,
    S8 = 8,
    S9 = 9,
    S10 = 10,
    S11 = 11,
    S12 = 12,
}

/**
 * Compress a `Float32Array` of samples into a Bioleptic `Uint8Array`.
 */
export function compressSignal(data: Float32Array, options?: CompressionOptions | null): Uint8Array;

/**
 * Decompress a Bioleptic `Uint8Array` back into a `Float32Array`.
 */
export function decompressSignal(data: Uint8Array): Float32Array;