import { Seconds } from "../type/Units";
import { Emitter } from "../util/Emitter";
import { AnyAudioContext } from "./AudioContext";
declare type Draw = import("../util/Draw").Draw;
declare type Destination = import("./Destination").Destination;
declare type Transport = import("../clock/Transport").Transport;
declare type Listener = import("./Listener").Listener;
declare type BaseAudioContextSubset = import("./Context").BaseAudioContextSubset;
export declare type ContextLatencyHint = AudioContextLatencyCategory | "fastest";
export declare abstract class BaseContext extends Emitter<"statechange" | "tick"> implements BaseAudioContextSubset {
    abstract createAnalyser(): AnalyserNode;
    abstract createOscillator(): OscillatorNode;
    abstract createBufferSource(): AudioBufferSourceNode;
    abstract createBiquadFilter(): BiquadFilterNode;
    abstract createBuffer(_numberOfChannels: number, _length: number, _sampleRate: number): AudioBuffer;
    abstract createChannelMerger(_numberOfInputs?: number | undefined): ChannelMergerNode;
    abstract createChannelSplitter(_numberOfOutputs?: number | undefined): ChannelSplitterNode;
    abstract createConstantSource(): ConstantSourceNode;
    abstract createConvolver(): ConvolverNode;
    abstract createDelay(_maxDelayTime?: number | undefined): DelayNode;
    abstract createDynamicsCompressor(): DynamicsCompressorNode;
    abstract createGain(): GainNode;
    abstract createIIRFilter(_feedForward: number[] | Float32Array, _feedback: number[] | Float32Array): IIRFilterNode;
    abstract createPanner(): PannerNode;
    abstract createPeriodicWave(_real: number[] | Float32Array, _imag: number[] | Float32Array, _constraints?: PeriodicWaveConstraints | undefined): PeriodicWave;
    abstract createStereoPanner(): StereoPannerNode;
    abstract createWaveShaper(): WaveShaperNode;
    abstract createMediaStreamSource(_stream: MediaStream): MediaStreamAudioSourceNode;
    abstract decodeAudioData(_audioData: ArrayBuffer): Promise<AudioBuffer>;
    abstract createAudioWorkletNode(_name: string, _options?: Partial<AudioWorkletNodeOptions>): AudioWorkletNode;
    abstract readonly rawContext: AnyAudioContext;
    abstract addAudioWorkletModule(_url: string, _name: string): Promise<void>;
    abstract lookAhead: number;
    abstract latencyHint: ContextLatencyHint | Seconds;
    abstract resume(): Promise<void>;
    abstract setTimeout(_fn: (...args: any[]) => void, _timeout: Seconds): number;
    abstract clearTimeout(_id: number): this;
    abstract setInterval(_fn: (...args: any[]) => void, _interval: Seconds): number;
    abstract clearInterval(_id: number): this;
    abstract getConstant(_val: number): AudioBufferSourceNode;
    abstract readonly currentTime: Seconds;
    abstract readonly state: AudioContextState;
    abstract readonly sampleRate: number;
    abstract readonly listener: Listener;
    abstract readonly transport: Transport;
    abstract readonly draw: Draw;
    abstract readonly destination: Destination;
    abstract now(): Seconds;
    abstract immediate(): Seconds;
    readonly isOffline: boolean;
}
export {};