export type EncodedFrameCallback = (data: ArrayBuffer, keyframe: boolean, timestamp: number) => void;
/**
 * What `useNativeScreenCapture()` returns. Named for the same reason as
 * `NativeAudioCaptureState`: `NativeScreenCapture` in `host/index.ts` is the host API.
 */
export interface NativeScreenCaptureState {
    available: boolean;
    active: boolean;
    videoStream: MediaStream | null;
    /** Which codec the native HW encoder is using, or null if raw/inactive */
    encodedCodec: "h264" | "hevc" | null;
    /** Subscribe to pre-encoded NAL frames. Returns unsubscribe function. */
    subscribeEncodedFrames: (cb: EncodedFrameCallback) => () => void;
    start: (monitorIndex: number, fps: number, maxWidth?: number, maxHeight?: number, bitrate?: number, codec?: string) => Promise<boolean>;
    stop: () => void;
}
export declare function useNativeScreenCapture(): NativeScreenCaptureState;