/**
 * WHAT A RECORDING TAKES, and the one mapping from what a person switched on. No stylesheet, so the
 * capture engine reads these types without importing a component.
 */
/** An enum, so "neither" (nothing transcribable) is not expressible. */
export type CaptureAudio = "mic" | "system" | "both";
export interface CaptureSelection {
    audio: CaptureAudio;
    screen: boolean;
}
/** `original` applies no size constraint. */
export type VideoQuality = "original" | "1080p" | "720p" | "480p";
/** `language: null` is auto-detect. */
export interface CaptureSourcesValue {
    microphone: boolean;
    systemSound: boolean;
    screen: boolean;
    quality: VideoQuality;
    language: string | null;
}
export declare const DEFAULT_CAPTURE_SOURCES: CaptureSourcesValue;
/** `null` when no audio source is on: there is nothing to transcribe. */
export declare function toCapture(value: CaptureSourcesValue): CaptureSelection | null;
export declare function needsDisplayShare(capture: CaptureSelection): boolean;