import { CaptureStatus, IEnableStreamConfig, IEnabledCapture, IStreamCurrent } from '../../type/index';
import { default as VideoAudioTrack } from './videoAudioTrack';
declare class videoAudioCapture {
    private enabledCapture;
    private track;
    private logger;
    currentMode: IStreamCurrent;
    constructor(track: VideoAudioTrack);
    getEnableCapture(): IEnabledCapture;
    getCurrentMode(): IStreamCurrent;
    setEnableCapture(config: IEnabledCapture): void;
    /**
     * 初始化采集配置
     *
     * @param {  boolean } muteAudio - 是否静音麦克风，true为静音麦克风，false是开启麦克风
     * @param {  boolean } muteVideo - 是否静音摄像头，true为关闭摄像头，false是开启摄像头
     */
    initCaptureConfig(muteAudio: boolean, muteVideo: boolean): void;
    createUserMediaStream(): Promise<MediaStream | null>;
    createAudioStream(enableStreamConfig: IEnableStreamConfig, video: CaptureStatus, audio: CaptureStatus): Promise<MediaStream | null>;
    createVideoMediaStream(enableStreamConfig: IEnableStreamConfig, video: CaptureStatus, audio: CaptureStatus): Promise<MediaStream | null>;
    createVideoAudioStream(enableStreamConfig: IEnableStreamConfig, video: CaptureStatus, audio: CaptureStatus): Promise<MediaStream>;
    /**
     * 采集基础视频流失败，返回错误码
     *
     * @param { IStreamConfig } enableStreamConfig - 最大分辨率流配置
     * @param { IReturnResult } error - 错误码
     * @param { BaseStreamErrorParams } params - 配置
     * @returns { Promise<IReturnResult> } 返回新的错误码
     */
    private handleCaptureStreamException;
    /**
     * 处理采集音/视频流异常
     *
     * @param { IEnableStreamConfig } enableStreamConfig - 可用流的配置
     */
    private handleCreateVideoAudioStreamError;
    /**
     * 重新尝试采集基础音频流
     * 采集音频，不需要接收之前的StreamConfig，重新生成即可
     *
     * @param { IStreamConfig } enableStreamConfig - 可分配的流配置
     * @returns { Promise<MediaStream | null> }
     */
    private recreateAudioMediaStream;
    /**
     * 重新尝试采集基础视频流
     *
     * @param { IStreamConfig } enableStreamConfig - 可分配的流配置
     * @returns { Promise<MediaStream | null> }
     */
    private recreateVideoMediaStream;
    /**
     * 采集视频和音频流
     *
     * @param { MediaStreamConstraints } constraints - 流约束配置
     * @returns { MediaStream }
     */
    private getUserMediaStream;
    /**
     * 获取通用采集音视频流约束配置
     *
     * @param { IStreamConfig } enableStreamConfig - 可用的流配置，包含视频和音频Stream配置
     * @returns
     */
    private getUserMediaConstraints;
    /**
     * 向约束配置追加设备信息
     *
     * @param { object } constraints - 约束配置
     */
    private appendDeviceConstraints;
    /**
     * 更新Stream配置状态
     *
     * @param { IStreamConfig } maxStreamConfig - 流配置
     */
    updateCurrentMode(): void;
    private closeStream;
}
export default videoAudioCapture;