import { EduRoleTypeEnum, EduStream } from 'agora-edu-core';
import { AgoraFromUser } from 'agora-rte-sdk';
export declare type VideoPlacement = 'Window' | 'Bar' | 'Setting' | 'Gallery';
/**
 * 业务流 UI 对象
 */
export declare class EduStreamUI {
    private _renderAt;
    readonly stream: EduStream;
    constructor(stream: EduStream);
    get micIconType(): "microphone-disabled" | "microphone-on" | "microphone-off";
    get isCameraMuted(): boolean;
    get isMicMuted(): boolean;
    get fromUser(): AgoraFromUser;
    get isMirrorMode(): boolean;
    get role(): EduRoleTypeEnum;
    get renderAt(): VideoPlacement;
    setRenderAt(at: VideoPlacement): void;
}
export interface StreamBounds {
    readonly x: number;
    readonly y: number;
    readonly width: number;
    readonly height: number;
    readonly top: number;
    readonly right: number;
    readonly bottom: number;
    readonly left: number;
    [key: string]: number;
}
/**
 * 视频流占位符类型
 */
export declare enum CameraPlaceholderType {
    /**
     * 摄像头打开
     */
    none = "none",
    /**
     * 设备正在打开
     */
    loading = "loading",
    /**
     * 摄像头关闭
     */
    muted = "muted",
    /**
     * 摄像头损坏
     */
    broken = "broken",
    /**
     * 摄像头禁用
     */
    disabled = "disabled",
    /**
     * 老师不在教室
     */
    notpresent = "notpresent",
    /**
     * 老师摄像头占位符（大小窗场景）
     */
    nosetup = "nosetup"
}