import { SpeakersInfoItem, XYBaseModule } from '../../type/index';
import { default as XYRTCClient } from '../../main/client';
import { default as Logger } from '../../tools/log/logger';
export declare class XYSpeaker implements XYBaseModule {
    logger: Logger;
    private client;
    private cacheSpeakerList;
    private cacheRemoteSpeakerList;
    private speakerListJson;
    private speakerListTimer;
    private speakerInterval;
    private speakerTimestamp;
    private analyserMap;
    constructor(client: XYRTCClient);
    /**
     * 获取实时讲话人列表数据
     */
    getRemoteSpeakerList(): SpeakersInfoItem[];
    /**
     * 获取SpeakerList的对象数据
     *
     * @returns { { [key: string]: SpeakersInfoItem } }
     */
    getRemoteSpeakerMap(): {
        [key: string]: SpeakersInfoItem;
    };
    /**
     * 处理实时讲话人信息
     *
     * @param { SpeakersInfoObj[] } data - 接收到的远端speakers消息内容
     */
    onSpeakerListMessage(data?: SpeakersInfoItem[]): void;
    /**
     * 删除无效的讲话人信息
     */
    private deleteInvalidSpeakerMap;
    /**
     * 启动定时器针对SpeakerList做处理
     */
    private startSpeakerListTimer;
    /**
     * 创建Analyser分析器，计算所有通道音量大小
     *
     * 1、缓存对应每个人的MediaStream数据
     * 2、获取每个人的实时音量大小
     * 3、排序、推送排序的数据
     */
    private updateSpeakerAudioLevel;
    /**
     * 创建或更新Analyser分析器
     *
     * @param { string } id - Roster Id
     * @param { string } trackId - 媒体网关分配的Track Id
     * @param { string } timestamp - 时间戳
     */
    private createAndUpdateAnalyser;
    /**
     * 基于合并后的SpeakerList做过滤和声量排序操作
     */
    private sortSpeakerAudioLevel;
    /**
     * 推送实时讲话人信息
     *
     * @param { SpeakersInfoObj[] } speakerList - 说话人信息
     */
    private emitSpeakerList;
    /**
     * 销毁所有Analyser分析器
     */
    private destroyAnalyserMap;
    /**
     * 清除Speaker Timer和其他缓存数据
     */
    destroy(): void;
}