export type MediaDeviceKind = 'audioinput' | 'audiooutput' | 'videoinput';
export interface MediaDeviceInfo {
    readonly deviceId: string;
    readonly groupId: string;
    readonly kind: MediaDeviceKind;
    readonly label: string;
    readonly facing: string;
    toJSON(): any;
}
interface ULongRange {
    max?: number;
    min?: number;
}
interface DoubleRange {
    max?: number;
    min?: number;
}
interface ConstrainDoubleRange extends DoubleRange {
    exact?: number;
    ideal?: number;
}
interface ConstrainDOMStringParameters {
    exact?: string | string[];
    ideal?: string | string[];
}
interface ConstrainULongRange extends ULongRange {
    exact?: number;
    ideal?: number;
}
interface ConstrainBooleanParameters {
    exact?: boolean;
    ideal?: boolean;
}
export type ConstrainBoolean = boolean | ConstrainBooleanParameters;
export type ConstrainDOMString = string | string[] | ConstrainDOMStringParameters;
export type ConstrainDouble = number | ConstrainDoubleRange;
export type ConstrainULong = number | ConstrainULongRange;
export interface MediaTrackConstraintSet {
    aspectRatio?: ConstrainDouble;
    autoGainControl?: ConstrainBoolean;
    channelCount?: ConstrainULong;
    deviceId?: ConstrainDOMString;
    echoCancellation?: ConstrainBoolean;
    facingMode?: ConstrainDOMString;
    frameRate?: ConstrainDouble;
    groupId?: ConstrainDOMString;
    height?: ConstrainULong;
    latency?: ConstrainDouble;
    noiseSuppression?: ConstrainBoolean;
    sampleRate?: ConstrainULong;
    sampleSize?: ConstrainULong;
    suppressLocalAudioPlayback?: ConstrainBoolean;
    width?: ConstrainULong;
}
interface MediaStreamConstraints {
    audio?: boolean | MediaTrackConstraints;
    peerIdentity?: string;
    preferCurrentTab?: boolean;
    video?: boolean | MediaTrackConstraints;
}
export interface MediaTrackConstraints extends MediaTrackConstraintSet {
    advanced?: MediaTrackConstraintSet[];
}
export type VideoQuality = 'qvga' | 'vga' | 'hd' | 'hd_cropped';
export type ScreenShareQuality = 'vga' | 'hd' | 'full_hd';
export interface RealtimeKitMediaTrackConstraints extends MediaTrackConstraints {
    optional?: Array<object>;
}
export interface RealtimeKitMediaStreamConstraints extends MediaStreamConstraints {
    audio?: boolean | RealtimeKitMediaTrackConstraints;
    timeout?: number;
}
export interface VideoConstraints {
    [key: string]: RealtimeKitMediaTrackConstraints;
}
export type MediaPermission = 'ACCEPTED' | 'DENIED' | 'SYS_DENIED' | 'UNAVAILABLE' | 'NOT_REQUESTED';
export {};