/**
 * What `useNativeAudioCapture()` returns. The `State` suffix is load-bearing:
 * `NativeAudioCapture` in `host/index.ts` is the host API, and both used to share a name.
 */
export interface NativeAudioCaptureState {
    /** Whether the native binary is present on this platform. */
    available: boolean;
    /** Whether native capture is currently running. */
    active: boolean;
    /** The MediaStream produced by the native capture (null when inactive). */
    stream: MediaStream | null;
    start: (audioContext: AudioContext, sourceId?: string) => Promise<boolean>;
    stop: () => void;
}
/**
 * Manages a native audio capture session: with a window sourceId, only that app's audio;
 * otherwise all system audio but Gryt's own. A no-op where there is no native binary.
 */
export declare function useNativeAudioCapture(): NativeAudioCaptureState;