import { AudioMixObserver, AudioVideoObserver, ConsoleLogger, DefaultDeviceController, DefaultMeetingSession, DeviceChangeObserver, LogLevel } from 'amazon-chime-sdk-js';
import { GetVoiceSign } from '../typings/live/GetVoiceSign';
import { RTCType } from '../typings/rtc/type';
import { CoreRTC } from './CoreRTC';
/**
 * 浏览器端 Amazon Chime SDK RTC 实现
 *
 * 基于 Amazon Chime SDK for JavaScript 实现的浏览器端 RTC 类。
 * 适用于在浏览器环境中使用 Amazon Chime 进行实时语音通信。
 *
 * @example
 * ```typescript
 * const rtc = new BrowserRTC4Chime({
 *   getVoiceSign: async (params) => {
 *     const response = await fetch('/api/get-voice-sign', {
 *       method: 'POST',
 *       body: JSON.stringify(params)
 *     })
 *     return response.json()
 *   },
 *   logLevel: LogLevel.INFO
 * })
 *
 * // 加入房间
 * await rtc.join({
 *   voiceId: 'voice-id',
 *   userId: 'user-id',
 *   roomId: 'room-id',
 *   type: RTCType.RealseeBrowserChimeRTC
 * })
 * ```
 */
export declare class BrowserRTC4Chime extends CoreRTC {
    type: RTCType;
    joined: boolean;
    micro: boolean;
    voiceId: string;
    userId: string;
    logger: ConsoleLogger;
    deviceController: DefaultDeviceController;
    meetingSession: DefaultMeetingSession | undefined;
    audioInput: MediaDeviceInfo | undefined;
    audioOutput: MediaDeviceInfo | undefined;
    deviceChangeObserver: DeviceChangeObserver;
    audioVideoObserver: AudioVideoObserver;
    audioMixObserver?: AudioMixObserver;
    private _getVoiceSign;
    private _autoPlayConfirm;
    private $dom;
    private $audio;
    /**
     * 创建 BrowserRTC4Chime 实例
     *
     * @param options 配置选项
     * @param options.getVoiceSign 获取语音签名的函数，必需
     * @param options.autoPlayConfirm 自动播放确认回调（可选），用于处理浏览器的自动播放策略
     * @param options.logLevel 日志级别（可选），默认为 LogLevel.INFO
     */
    constructor(options: {
        getVoiceSign: GetVoiceSign;
        autoPlayConfirm?: (opts: {
            onConfirm: () => void;
        }) => void;
        logLevel?: LogLevel;
    });
    /**
     * 初始化 DOM 元素（内部方法）
     * 创建并挂载 audio 标签到页面
     */
    _initDom: () => void;
    /**
     * 初始化事件监听器
     *
     * 设置设备变化、音视频事件等监听器
     */
    initObservers: () => void;
    /**
     * 加入语音会议
     * @param options
     * @returns
     */
    join(options: {
        voiceId: string;
        userId: string;
        roomId: string | number | undefined;
        type: RTCType;
    }): Promise<boolean>;
    /**
     * 注册rtc事件
     */
    _registerRtcEvent: () => void;
    quit(): Promise<boolean>;
    detectMicro(): Promise<boolean>;
    toggleMicro(flag?: boolean): Promise<boolean>;
    shock(): void;
}