export interface NativeScreenFrame {
    width: number;
    height: number;
    timestampUs: number;
    data: ArrayBuffer;
}
export interface NativeAudioCapture {
    isNativeAudioCaptureAvailable(): Promise<boolean>;
    startNativeAudioCapture(sourceId?: string): Promise<boolean>;
    stopNativeAudioCapture(): void;
    onNativeAudioData(callback: (pcm: ArrayBuffer) => void): () => void;
    onNativeAudioStopped(callback: () => void): () => void;
    onNativeAudioDiagnostic(callback: (msg: string) => void): () => void;
}
export interface NativeScreenCapture {
    isNativeScreenCaptureAvailable(): Promise<boolean>;
    startNativeScreenCapture(monitorIndex: number, fps: number, maxWidth?: number, maxHeight?: number, bitrate?: number, codec?: string): Promise<{
        success: boolean;
        wsPort?: number;
    }>;
    stopNativeScreenCapture(): void;
    onNativeScreenFrame(callback: (frame: NativeScreenFrame) => void): () => void;
    onNativeScreenCaptureStopped(callback: () => void): () => void;
}
export interface VoiceHost {
    /** Whether native capture is available at all. */
    hasNativeCapture(): boolean;
    getNativeAudio(): NativeAudioCapture | null;
    getNativeScreen(): NativeScreenCapture | null;
    allowsInsecureTransport(): boolean;
}
export declare const webHost: VoiceHost;
/** Called once by the embedder, before any voice code runs. */
export declare function setVoiceHost(host: VoiceHost): void;
export declare function getVoiceHost(): VoiceHost;