# AVDEngine

#### new AVDEngine()

Description:
  - AVDEngine构造函数,实例化avdEngine 对象，用于获取摄像头列表、麦克风列表、检查浏览器兼容性、控制日志等级及日志保存等功能。
Source:
  - avdEngine.js, line 24

##### Example

    var avdEngine = new AVDEngine();

### Methods

#### addCallback(type, callback)

Description:
  - 引擎级别的回调
Source:
  - avdEngine.js, line 212

##### Example

    avdEngine.addCallback(EngineCallback.device_microphone_change, onMicrophoneDeviceChangeHandle)
    avdEngine.addCallback(EngineCallback.device_camera_change, onCameraDeviceChangeHandle)

    //param {String} changeType -  设备变化类型，可以为"add"、"remove"
    //param {Array} deviceIdList - 变动的麦克风设备ID列表
    function onMicrophoneDeviceChangeHandle(changeType, deviceIdList) {}

    //param {String} changeType -  设备变化类型，可以为"add"、"remove"
    //param {Array} deviceIdList - 变动的摄像头设备ID列表
    function onCameraDeviceChangeHandle(changeType, deviceIdList) {}

##### Parameters:

Name | Type | Description
--- | --- | ---
`type` | EngineCallback | 回调枚举标识, 包括EngineCallback.device_microphone_changet 和 device_camera_change.
`callback` | Object | 回调方法名,可以自定义，建议保持默认值

#### addCallback(type, callback)

Description:
  - 引擎级别的回调
Source:
  - avdEngine.js, line 212

##### Example

    avdEngine.addCallback(EngineCallback.device_microphone_change, onMicrophoneDeviceChangeHandle)
    avdEngine.addCallback(EngineCallback.device_camera_change, onCameraDeviceChangeHandle)

    //param {String} changeType -  设备变化类型，可以为"add"、"remove"
    //param {Array} deviceIdList - 变动的麦克风设备ID列表
    function onMicrophoneDeviceChangeHandle(changeType, deviceIdList) {}

    //param {String} changeType -  设备变化类型，可以为"add"、"remove"
    //param {Array} deviceIdList - 变动的摄像头设备ID列表
    function onCameraDeviceChangeHandle(changeType, deviceIdList) {}

##### Parameters:

Name | Type | Description
--- | --- | ---
`type` | EngineCallback | 回调枚举标识, 包括EngineCallback.device_microphone_changet 和 device_camera_change.
`callback` | Object | 回调方法名,可以自定义，建议保持默认值

#### checkAudioLevel(intervalMilis, showAudioLevel)

Description:
  - 设备检测，麦克风音量的检测回调
Source:
  - avdEngine.js, line 1924

##### Example

    avdEngine.checkAudioLevel(1000,showAudioLevel);
    function showAudioLevelm(audioLevel) {}

##### Parameters:

Name | Type | Description
--- | --- | ---
`intervalMilis` | int | 音量采购频率，单位为毫秒
`showAudioLevel` | Object | 音量值回调方法

#### checkAudioLevel(intervalMilis, showAudioLevel)

Description:
  - 设备检测，麦克风音量的检测回调
Source:
  - avdEngine.js, line 1924

##### Example

    avdEngine.checkAudioLevel(1000,showAudioLevel);
    function showAudioLevelm(audioLevel) {}

##### Parameters:

Name | Type | Description
--- | --- | ---
`intervalMilis` | int | 音量采购频率，单位为毫秒
`showAudioLevel` | Object | 音量值回调方法

#### checkBrowserPluginSupport() → {boolean}

Description:
  - 检测当前浏览器是否通过插件支持rtc能力
Source:
  - avdEngine.js, line 431

##### Example

    var browserPluginSupport = avdEngine.checkBrowserPluginSupport();

##### Returns:

- 是否支持， false:不支持; true:支持

Type
  boolean

#### checkBrowserPluginSupport() → {boolean}

Description:
  - 检测当前浏览器是否通过插件支持rtc能力
Source:
  - avdEngine.js, line 431

##### Example

    var browserPluginSupport = avdEngine.checkBrowserPluginSupport();

##### Returns:

- 是否支持， false:不支持; true:支持

Type
  boolean

#### checkBrowserSupport() → {boolean}

Description:
  - 检测当前浏览器是否支持rtc能力，目前仅支持Chrome内核的浏览器、firefox和safair.
Source:
  - avdEngine.js, line 415

##### Example

    var browserSupport = avdEngine.checkBrowserSupport();

##### Returns:

- 是否支持， false:不支持; true:支持

Type
  boolean

#### checkBrowserSupport() → {boolean}

Description:
  - 检测当前浏览器是否支持rtc能力，目前仅支持Chrome内核的浏览器、firefox和safair.
Source:
  - avdEngine.js, line 415

##### Example

    var browserSupport = avdEngine.checkBrowserSupport();

##### Returns:

- 是否支持， false:不支持; true:支持

Type
  boolean

#### checkCloseAudio()

Description:
  - 设备检测，关闭麦克风
Source:
  - avdEngine.js, line 1955

##### Example

    avdEngine.checkCloseAudio();

#### checkCloseAudio()

Description:
  - 设备检测，关闭麦克风
Source:
  - avdEngine.js, line 1955

##### Example

    avdEngine.checkCloseAudio();

#### checkCloseVideo()

Description:
  - 设备检测，关闭摄像头
Source:
  - avdEngine.js, line 1938

##### Example

    avdEngine.checkCloseVideo();

#### checkCloseVideo()

Description:
  - 设备检测，关闭摄像头
Source:
  - avdEngine.js, line 1938

##### Example

    avdEngine.checkCloseVideo();

#### (async) checkOpenAudio(microphoneId) → {Object}

Description:
  - 设备检测，打开麦克风
Source:
  - avdEngine.js, line 1745

##### Example

    avdEngine.checkOpenAudio().then(showAudio).otherwise(alertError);

    function showAudio(stream) {
       checkAudio.srcObject = stream;
    }

##### Parameters:

Name | Type | Description
--- | --- | ---
`microphoneId` | String | 麦克风ID，空字符串时则默认选择打开一个麦克风

##### Returns:

- 音频流对象

Type
  Object

#### (async) checkOpenAudio(microphoneId) → {Object}

Description:
  - 设备检测，打开麦克风
Source:
  - avdEngine.js, line 1745

##### Example

    avdEngine.checkOpenAudio().then(showAudio).otherwise(alertError);

    function showAudio(stream) {
       checkAudio.srcObject = stream;
    }

##### Parameters:

Name | Type | Description
--- | --- | ---
`microphoneId` | String | 麦克风ID，空字符串时则默认选择打开一个麦克风

##### Returns:

- 音频流对象

Type
  Object

#### (async) checkOpenVideo(cameraId, resolution, framerate) → {Object}

Description:
  - 设备检测，打开摄像头
Source:
  - avdEngine.js, line 1654

##### Example

    avdEngine.checkOpenVideo(cameraId, resolution, framerate).then(showVideo).otherwise(alertError);

    function showVideo(stream) {
       checkVideo.srcObject = stream;
    }

##### Parameters:

Name | Type | Description
--- | --- | ---
`cameraId` | String | 摄像头ID，空字符串时则默认选择打开一个摄像头
`resolution` | Int | 视频分辨率
`framerate` | Int | 视频帧率

##### Returns:

- 视频流对象

Type
  Object

#### (async) checkOpenVideo(cameraId, resolution, framerate) → {Object}

Description:
  - 设备检测，打开摄像头
Source:
  - avdEngine.js, line 1654

##### Example

    avdEngine.checkOpenVideo(cameraId, resolution, framerate).then(showVideo).otherwise(alertError);

    function showVideo(stream) {
       checkVideo.srcObject = stream;
    }

##### Parameters:

Name | Type | Description
--- | --- | ---
`cameraId` | String | 摄像头ID，空字符串时则默认选择打开一个摄像头
`resolution` | Int | 视频分辨率
`framerate` | Int | 视频帧率

##### Returns:

- 视频流对象

Type
  Object

#### (async) checkOpenVideoAndAudio(cameraId, microphoneId, resolution, framerate) → {Object}

Description:
  - 设备检测，打开摄像头和麦克风
Source:
  - avdEngine.js, line 1815

##### Example

    avdEngine.checkOpenVideoAndAudio().then(showVideoAndAudio).otherwise(alertError);

    function showVideoAndAudio(stream) {
       checkVideo.srcObject = stream.videoStream;
       checkAudio.srcObject = stream.audioStream;
    }

##### Parameters:

Name | Type | Description
--- | --- | ---
`cameraId` | String | 摄像头ID，空字符串时则默认选择打开一个摄像头
`microphoneId` | String | 麦克风ID，空字符串时则默认选择打开一个麦克风
`resolution` | Int | 视频分辨率
`framerate` | Int | 视频帧率

##### Returns:

- 音视频流对象

Type
  Object

#### (async) checkOpenVideoAndAudio(cameraId, microphoneId, resolution, framerate) → {Object}

Description:
  - 设备检测，打开摄像头和麦克风
Source:
  - avdEngine.js, line 1815

##### Example

    avdEngine.checkOpenVideoAndAudio().then(showVideoAndAudio).otherwise(alertError);

    function showVideoAndAudio(stream) {
       checkVideo.srcObject = stream.videoStream;
       checkAudio.srcObject = stream.audioStream;
    }

##### Parameters:

Name | Type | Description
--- | --- | ---
`cameraId` | String | 摄像头ID，空字符串时则默认选择打开一个摄像头
`microphoneId` | String | 麦克风ID，空字符串时则默认选择打开一个麦克风
`resolution` | Int | 视频分辨率
`framerate` | Int | 视频帧率

##### Returns:

- 音视频流对象

Type
  Object

#### (async) getAllDevices() → {Object}

Description:
  - 获取当前所有设备的原始对象，需要应用层自己去疏理摄像头，麦克风等。
Source:
  - avdEngine.js, line 1049

##### Example

    avdEngine.getAllDevices().then(onAllDevices).otherwise(showError);

    function onAllDevices(devices) {
       devices.forEach(function(device){
    	     if (device.kind === 'videoinput' || device.kind === 'video') {
    	           console.log("camera:",device);
          }else if(device.kind === 'audioinput' || device.kind === 'audio'){
    	           console.log("microphone:",device);
          }else if(device.kind === 'audiooutput'){
    	           console.log("speaker:",device);
          }
       }
    }

##### Returns:

- devices - 所有设备的原始对象

Type
  Object

#### (async) getAllDevices() → {Object}

Description:
  - 获取当前所有设备的原始对象，需要应用层自己去疏理摄像头，麦克风等。
Source:
  - avdEngine.js, line 1049

##### Example

    avdEngine.getAllDevices().then(onAllDevices).otherwise(showError);

    function onAllDevices(devices) {
       devices.forEach(function(device){
    	     if (device.kind === 'videoinput' || device.kind === 'video') {
    	           console.log("camera:",device);
          }else if(device.kind === 'audioinput' || device.kind === 'audio'){
    	           console.log("microphone:",device);
          }else if(device.kind === 'audiooutput'){
    	           console.log("speaker:",device);
          }
       }
    }

##### Returns:

- devices - 所有设备的原始对象

Type
  Object

#### getAudioAutoSub()

Description:
  - 获取当前的音频的订阅方式，true为自动订阅,flase为手动订阅
Source:
  - avdEngine.js, line 681

##### Example

    avdEngine.getAudioAutoSub();

#### getAudioAutoSub()

Description:
  - 获取当前的音频的订阅方式，true为自动订阅,flase为手动订阅
Source:
  - avdEngine.js, line 681

##### Example

    avdEngine.getAudioAutoSub();

#### getAudioBatchEnabled()

Description:
  - 获取音频自动订阅时,对多路音频批量订阅处理的状态值
Source:
  - avdEngine.js, line 332

#### getAudioBatchEnabled()

Description:
  - 获取音频自动订阅时,对多路音频批量订阅处理的状态值
Source:
  - avdEngine.js, line 332

#### getAudioCoding()

Description:
  - 获取当前的音频编码格式
Source:
  - avdEngine.js, line 656

##### Example

    avdEngine.getAudioCoding();

#### getAudioCoding()

Description:
  - 获取当前的音频编码格式
Source:
  - avdEngine.js, line 656

##### Example

    avdEngine.getAudioCoding();

#### getBrowserDetect() → {Object}

Description:
  - 获取浏览器检测结果
Source:
  - avdEngine.js, line 400

##### Example

    var detect = avdEngine.getBrowserDetect();

    detect.browser.name:  浏览器内核名称
    detect.browser.fullVersion: 内核版本
    detect.browser.isCustomized: 是否是定制外壳
    detect.browser.shellFullVersion：外壳版本
    detect.osName: 操作系统名称
    detect.getUserMediaSupport:是否支持webrtc的GetUserMedia
    detect.RTCPeerConnectionSupport:是否支持webrtc的RTCPeerConnection
    detect.dataChannelSupport: 是否支持webrtc的DataChannel
    detect.WebSocketSupport: 是否支持WebSocket
    detect.screenSharingSupport: 是否支持屏幕共享(chrome42以上及https访问)
    detect.h264Support: 是否支持H264(chrome52及以上)

##### Returns:

- 浏览器检测结果对象

Type
  Object

#### getBrowserDetect() → {Object}

Description:
  - 获取浏览器检测结果
Source:
  - avdEngine.js, line 400

##### Example

    var detect = avdEngine.getBrowserDetect();

    detect.browser.name:  浏览器内核名称
    detect.browser.fullVersion: 内核版本
    detect.browser.isCustomized: 是否是定制外壳
    detect.browser.shellFullVersion：外壳版本
    detect.osName: 操作系统名称
    detect.getUserMediaSupport:是否支持webrtc的GetUserMedia
    detect.RTCPeerConnectionSupport:是否支持webrtc的RTCPeerConnection
    detect.dataChannelSupport: 是否支持webrtc的DataChannel
    detect.WebSocketSupport: 是否支持WebSocket
    detect.screenSharingSupport: 是否支持屏幕共享(chrome42以上及https访问)
    detect.h264Support: 是否支持H264(chrome52及以上)

##### Returns:

- 浏览器检测结果对象

Type
  Object

#### getCustomerTokenEnabled()

Description:
  - 获取当前是否开启客户自己的认证token状态值
Source:
  - avdEngine.js, line 354

#### getCustomerTokenEnabled()

Description:
  - 获取当前是否开启客户自己的认证token状态值
Source:
  - avdEngine.js, line 354

#### getDataCryptoType()

Description:
  - 获取当前的数据加密类型
Source:
  - avdEngine.js, line 735

##### Example

    avdEngine.getDataCryptoType();

#### getDataCryptoType()

Description:
  - 获取当前的数据加密类型
Source:
  - avdEngine.js, line 735

##### Example

    avdEngine.getDataCryptoType();

#### getElectronManager()

Description:
  - 获取ElectronManager对象
Source:
  - avdEngine.js, line 281

##### Example

    var electronManager = avdEngine.getElectronManager();

#### getElectronManager()

Description:
  - 获取ElectronManager对象
Source:
  - avdEngine.js, line 281

##### Example

    var electronManager = avdEngine.getElectronManager();

#### getMediaConnectType()

Description:
  - 获取媒体通道协议，0 表示udp优先; 1表示 tcp优先，默认为0
Source:
  - avdEngine.js, line 705

##### Example

    avdEngine.getMediaConnectType();

#### getMediaConnectType()

Description:
  - 获取媒体通道协议，0 表示udp优先; 1表示 tcp优先，默认为0
Source:
  - avdEngine.js, line 705

##### Example

    avdEngine.getMediaConnectType();

#### getResolutionEnum()

Description:
  - 获取摄像头分辨率枚举,该枚举值只是罗列了主流的分辨率，而非真实的当前摄像头支持的分辨率集。
Source:
  - avdEngine.js, line 753

##### Example

    avdEngine.getResolutionEnum().then(fillResolutionElement);

    function fillResolutionElement(resolutionEnum){
    	    for(var key in resolutionEnum){
    			 	var resolutionObject = resolutionEnum[key];
    			 	var value = resolutionObject.width +" X " + resolutionObject.height;
    	     }
    }

#### getResolutionEnum()

Description:
  - 获取摄像头分辨率枚举,该枚举值只是罗列了主流的分辨率，而非真实的当前摄像头支持的分辨率集。
Source:
  - avdEngine.js, line 753

##### Example

    avdEngine.getResolutionEnum().then(fillResolutionElement);

    function fillResolutionElement(resolutionEnum){
    	    for(var key in resolutionEnum){
    			 	var resolutionObject = resolutionEnum[key];
    			 	var value = resolutionObject.width +" X " + resolutionObject.height;
    	     }
    }

#### getRestfulRequestType()

Description:
  - 获取RESTful API 请求类型，0 表示GET; 1表示 POST，默认为0
Source:
  - avdEngine.js, line 376

##### Example

    avdEngine.getRestfulRequestType();

#### getRestfulRequestType()

Description:
  - 获取RESTful API 请求类型，0 表示GET; 1表示 POST，默认为0
Source:
  - avdEngine.js, line 376

##### Example

    avdEngine.getRestfulRequestType();

#### getRoom(roomId) → {Object}

Description:
  - 获取房间对象
Source:
  - avdEngine.js, line 1011

##### Parameters:

Name | Type | Description
--- | --- | ---
`roomId` | String | 房间ID

##### Returns:

room - 房间对象

Type
  Object

#### getRoom(roomId) → {Object}

Description:
  - 获取房间对象
Source:
  - avdEngine.js, line 1011

##### Parameters:

Name | Type | Description
--- | --- | ---
`roomId` | String | 房间ID

##### Returns:

room - 房间对象

Type
  Object

#### getSimulcastEnabled()

Description:
  - 获取视频是否开启多流的状态值
Source:
  - avdEngine.js, line 311

#### getSimulcastEnabled()

Description:
  - 获取视频是否开启多流的状态值
Source:
  - avdEngine.js, line 311

#### getTraceId() → {String}

Description:
  - 获取traceId
Source:
  - avdEngine.js, line 2359

##### Returns:

traceId

Type
  String

#### getTraceId() → {String}

Description:
  - 获取traceId
Source:
  - avdEngine.js, line 2359

##### Returns:

traceId

Type
  String

#### getVersion() → {String}

Description:
  - 获取当前rtc web SDK的版本号
Source:
  - avdEngine.js, line 190

##### Example

    var Version = avdEngine.getVersion();

##### Returns:

- 版本号

Type
  String

#### getVersion() → {String}

Description:
  - 获取当前rtc web SDK的版本号
Source:
  - avdEngine.js, line 190

##### Example

    var Version = avdEngine.getVersion();

##### Returns:

- 版本号

Type
  String

#### getVideoCoding()

Description:
  - 获取当前的视频编码格式
Source:
  - avdEngine.js, line 584

##### Example

    avdEngine.getVideoCoding();

#### getVideoCoding()

Description:
  - 获取当前的视频编码格式
Source:
  - avdEngine.js, line 584

##### Example

    avdEngine.getVideoCoding();

#### (async) init(serverURI, accessToken, isUseCascade)

Description:
  - 引擎初始化
Source:
  - avdEngine.js, line 858

##### Example

    avdEngine.init('avd.nice2meet.cn:9610','ZDgyNGU1MGU0ZGY2MTJlZWY3NjkwMjQ5NDY0YWE3MDkxZGJjNmRiZg==').then(function(){}).otherwise(function(error){});

##### Parameters:

Name | Type | Description
--- | --- | ---
`serverURI` | String | MCU服务器地址
`accessToken` | String | 访问令牌
`isUseCascade` | boolean | 是否级联加入会议，可以不传，默认为false

#### (async) init(serverURI, accessToken, isUseCascade)

Description:
  - 引擎初始化
Source:
  - avdEngine.js, line 858

##### Example

    avdEngine.init('avd.nice2meet.cn:9610','ZDgyNGU1MGU0ZGY2MTJlZWY3NjkwMjQ5NDY0YWE3MDkxZGJjNmRiZg==').then(function(){}).otherwise(function(error){});

##### Parameters:

Name | Type | Description
--- | --- | ---
`serverURI` | String | MCU服务器地址
`accessToken` | String | 访问令牌
`isUseCascade` | boolean | 是否级联加入会议，可以不传，默认为false

#### (async) initDevice() → {int}

Description:
  - 初始化摄像头、麦克风设备

    逻辑：摄像头设备会全部初始化到服务器,麦克风设备只会初始化默认的一个到服务器

Source:
  - avdEngine.js, line 1090

##### Example

    avdEngine.initDevice().then(function(result){
    	   if(result == 1){
    	      console.log('设备初始化完成');
        }
    }).otherwise(function(error){});

##### Returns:

- 返回初始化完成状态。1:代表完成

Type
  int

#### (async) initDevice() → {int}

Description:
  - 初始化摄像头、麦克风设备

    逻辑：摄像头设备会全部初始化到服务器,麦克风设备只会初始化默认的一个到服务器

Source:
  - avdEngine.js, line 1090

##### Example

    avdEngine.initDevice().then(function(result){
    	   if(result == 1){
    	      console.log('设备初始化完成');
        }
    }).otherwise(function(error){});

##### Returns:

- 返回初始化完成状态。1:代表完成

Type
  int

#### (async) initWithOEM(serverURI, oemName)

Description:
  - avdEngine OEM初始化
Source:
  - avdEngine.js, line 947

##### Parameters:

Name | Type | Description
--- | --- | ---
`serverURI` | String | MCU服务器地址
`oemName` | String | oem名称

#### (async) initWithOEM(serverURI, oemName)

Description:
  - avdEngine OEM初始化
Source:
  - avdEngine.js, line 947

##### Parameters:

Name | Type | Description
--- | --- | ---
`serverURI` | String | MCU服务器地址
`oemName` | String | oem名称

#### obtainRoom(roomId) → {Object}

Description:
  - 获取房间。如房间存在,直接返回，不存在时创建房间后返回
Source:
  - avdEngine.js, line 975

##### Example

    var roomId = '13124323454';
    room = avdEngine.obtainRoom(roomId);

##### Parameters:

Name | Type | Description
--- | --- | ---
`roomId` | String | 房间ID

##### Returns:

room - 房间对象

Type
  Object

#### obtainRoom(roomId) → {Object}

Description:
  - 获取房间。如房间存在,直接返回，不存在时创建房间后返回
Source:
  - avdEngine.js, line 975

##### Example

    var roomId = '13124323454';
    room = avdEngine.obtainRoom(roomId);

##### Parameters:

Name | Type | Description
--- | --- | ---
`roomId` | String | 房间ID

##### Returns:

room - 房间对象

Type
  Object

#### preloadBeautyModel() → {Promise}

Description:
  - 预加载美颜模型（人脸检测），可以在用户点击美颜按钮之前提前调用，显著减少首次启用美颜的等待时间
Source:
  - avdEngine.js, line 2322

##### Example

    avdEngine.preloadBeautyModel().then(function() { console.log('预加载完成'); }).catch(function(e) { console.error('预加载失败:', e); });

##### Returns:

- 预加载结果

Type
  Promise

#### preloadBeautyModel() → {Promise}

Description:
  - 预加载美颜模型（人脸检测），可以在用户点击美颜按钮之前提前调用，显著减少首次启用美颜的等待时间
Source:
  - avdEngine.js, line 2322

##### Example

    avdEngine.preloadBeautyModel().then(function() { console.log('预加载完成'); }).catch(function(e) { console.error('预加载失败:', e); });

##### Returns:

- 预加载结果

Type
  Promise

#### setApplyToElectron(islectron, protocolStr)

Description:
  - Electron开发应用时，设置应用的协议
Source:
  - avdEngine.js, line 248

##### Parameters:

Name | Type | Description
--- | --- | ---
`islectron` | Boolean | islectron true为应用于Electron
`protocolStr` | String | protocolStr Electron应用时的协议，可不填，默认为http:

#### setApplyToElectron(islectron, protocolStr)

Description:
  - Electron开发应用时，设置应用的协议
Source:
  - avdEngine.js, line 248

##### Parameters:

Name | Type | Description
--- | --- | ---
`islectron` | Boolean | islectron true为应用于Electron
`protocolStr` | String | protocolStr Electron应用时的协议，可不填，默认为http:

#### setAudioAutoSub(isAudioAutodSub)

Description:
  - 设置音频订阅方式是否为自动订阅，默认值为true
Source:
  - avdEngine.js, line 668

##### Example

    avdEngine.setAudioAutoSub(false);

##### Parameters:

Name | Type | Description
--- | --- | ---
`isAudioAutodSub` | Boolean | true为自动订阅,flase为手动订阅

#### setAudioAutoSub(isAudioAutodSub)

Description:
  - 设置音频订阅方式是否为自动订阅，默认值为true
Source:
  - avdEngine.js, line 668

##### Example

    avdEngine.setAudioAutoSub(false);

##### Parameters:

Name | Type | Description
--- | --- | ---
`isAudioAutodSub` | Boolean | true为自动订阅,flase为手动订阅

#### setAudioBatchEnabled(isAudioBatch)

Description:
  - 音频自动订阅时,设置对多路音频批量订阅处理,这样可以只进行一次SDP交互以提高性能,默认值为false，
Source:
  - avdEngine.js, line 322

##### Example

    avdEngine.setAudioBatchEnabled(true);

##### Parameters:

Name | Type | Description
--- | --- | ---
`isAudioBatch` | Boolean | isAudioBatch false为不开启,true为开启

#### setAudioBatchEnabled(isAudioBatch)

Description:
  - 音频自动订阅时,设置对多路音频批量订阅处理,这样可以只进行一次SDP交互以提高性能,默认值为false，
Source:
  - avdEngine.js, line 322

##### Example

    avdEngine.setAudioBatchEnabled(true);

##### Parameters:

Name | Type | Description
--- | --- | ---
`isAudioBatch` | Boolean | isAudioBatch false为不开启,true为开启

#### (async) setAudioCoding(audioCodingType)

Description:
  - 设置音频编码格式
Source:
  - avdEngine.js, line 597

##### Example

    avdEngine.setAudioCoding(AudioCodingType.opus).then(function(){}).otherwise(function(error){});

##### Parameters:

Name | Type | Description
--- | --- | ---
`audioCodingType` | AudioCodingType | 音频编码格式(枚举型),默认值为AudioCodingType.opus

#### (async) setAudioCoding(audioCodingType)

Description:
  - 设置音频编码格式
Source:
  - avdEngine.js, line 597

##### Example

    avdEngine.setAudioCoding(AudioCodingType.opus).then(function(){}).otherwise(function(error){});

##### Parameters:

Name | Type | Description
--- | --- | ---
`audioCodingType` | AudioCodingType | 音频编码格式(枚举型),默认值为AudioCodingType.opus

#### setAutoGainControl(enable)

Description:
  - 设置自动增益
Source:
  - avdEngine.js, line 2273

##### Parameters:

Name | Type | Description
--- | --- | ---
`enable` | Boolean |

#### setAutoGainControl(enable)

Description:
  - 设置自动增益
Source:
  - avdEngine.js, line 2273

##### Parameters:

Name | Type | Description
--- | --- | ---
`enable` | Boolean |

#### setBugout(logFilename)

Description:
  - 设置日志的可输出下载地址
Source:
  - avdEngine.js, line 496

##### Example

    avdEngine.setBugout(avdlog.txt);

##### Parameters:

Name | Type | Description
--- | --- | ---
`logFilename` | String | 输出下载地址

#### setBugout(logFilename)

Description:
  - 设置日志的可输出下载地址
Source:
  - avdEngine.js, line 496

##### Example

    avdEngine.setBugout(avdlog.txt);

##### Parameters:

Name | Type | Description
--- | --- | ---
`logFilename` | String | 输出下载地址

#### setCustomerTokenEnabled(customerTokenEnabled)

Description:
  - 设置是否开启客户自己的认证token,不调接口设置时，默认值为不开启
Source:
  - avdEngine.js, line 344

##### Example

    avdEngine.setCustomerTokenEnabled(true);

##### Parameters:

Name | Type | Description
--- | --- | ---
`customerTokenEnabled` | Boolean | customerTokenEnabled false为不开启,true为开启

#### setCustomerTokenEnabled(customerTokenEnabled)

Description:
  - 设置是否开启客户自己的认证token,不调接口设置时，默认值为不开启
Source:
  - avdEngine.js, line 344

##### Example

    avdEngine.setCustomerTokenEnabled(true);

##### Parameters:

Name | Type | Description
--- | --- | ---
`customerTokenEnabled` | Boolean | customerTokenEnabled false为不开启,true为开启

#### setDataCryptoType(dataCryptoType)

Description:
  - 设置数据加密类型
Source:
  - avdEngine.js, line 718

##### Example

    avdEngine.setDataCryptoType(DataCryptoType.AES256);

##### Parameters:

Name | Type | Description
--- | --- | ---
`dataCryptoType` | DataCryptoType | 数据加密类型(枚举型),默认值为DataCryptoType.AES128

#### setDataCryptoType(dataCryptoType)

Description:
  - 设置数据加密类型
Source:
  - avdEngine.js, line 718

##### Example

    avdEngine.setDataCryptoType(DataCryptoType.AES256);

##### Parameters:

Name | Type | Description
--- | --- | ---
`dataCryptoType` | DataCryptoType | 数据加密类型(枚举型),默认值为DataCryptoType.AES128

#### setDefaultMediaPublishKeepAliveTime(keepAliveTime)

Description:
  - 设置媒体流推送的保活时长(单位为毫秒)，不设置默认为15000毫秒
Source:
  - avdEngine.js, line 840

##### Parameters:

Name | Type | Description
--- | --- | ---
`keepAliveTime` | int | 保活时长

#### setDefaultMediaPublishKeepAliveTime(keepAliveTime)

Description:
  - 设置媒体流推送的保活时长(单位为毫秒)，不设置默认为15000毫秒
Source:
  - avdEngine.js, line 840

##### Parameters:

Name | Type | Description
--- | --- | ---
`keepAliveTime` | int | 保活时长

#### setDefaultScreenParams(maxWidth, maxHeight, minFrameRate, maxFrameRate)

Description:
  - 设置桌面共享相关的默认参数值
Source:
  - avdEngine.js, line 820

##### Example

    avdEngine.setDefaultScreenParams(1080,720,5,10);

##### Parameters:

Name | Type | Description
--- | --- | ---
`maxWidth` | int | 分辨率最大宽度，默认值为1920
`maxHeight` | int | 分辨率最大高度，默认值为1080
`minFrameRate` | int | 最小帧率, 默认值为5
`maxFrameRate` | int | 最大帧率, 默认值为10

#### setDefaultScreenParams(maxWidth, maxHeight, minFrameRate, maxFrameRate)

Description:
  - 设置桌面共享相关的默认参数值
Source:
  - avdEngine.js, line 820

##### Example

    avdEngine.setDefaultScreenParams(1080,720,5,10);

##### Parameters:

Name | Type | Description
--- | --- | ---
`maxWidth` | int | 分辨率最大宽度，默认值为1920
`maxHeight` | int | 分辨率最大高度，默认值为1080
`minFrameRate` | int | 最小帧率, 默认值为5
`maxFrameRate` | int | 最大帧率, 默认值为10

#### setDefaultVideoParams(width, height, resolutionSetType, frameRate)

Description:
  - 设置视频相关的默认参数值
Source:
  - avdEngine.js, line 786

##### Example

    avdEngine.setDefaultVideoParams(1080,720,ResolutionSetType.ideal,25);

##### Parameters:

Name | Type | Description
--- | --- | ---
`width` | int | 分辨率宽，默认值为640
`height` | int | 分辨率高，默认值为480
`resolutionSetType` | Object | 分辨率设置类型枚举，默认值为强制即ResolutionSetType.ideal
`frameRate` | int | 视频帧率，默认值为20

#### setDefaultVideoParams(width, height, resolutionSetType, frameRate)

Description:
  - 设置视频相关的默认参数值
Source:
  - avdEngine.js, line 786

##### Example

    avdEngine.setDefaultVideoParams(1080,720,ResolutionSetType.ideal,25);

##### Parameters:

Name | Type | Description
--- | --- | ---
`width` | int | 分辨率宽，默认值为640
`height` | int | 分辨率高，默认值为480
`resolutionSetType` | Object | 分辨率设置类型枚举，默认值为强制即ResolutionSetType.ideal
`frameRate` | int | 视频帧率，默认值为20

#### setEchoCancellation(enable)

Description:
  - 设置回声消除
Source:
  - avdEngine.js, line 2247

##### Example

    avdEngine.setEchoCancellation(false);

##### Parameters:

Name | Type | Description
--- | --- | ---
`enable` | Boolean | 是否开启回声消除，默认为true

#### setEchoCancellation(enable)

Description:
  - 设置回声消除
Source:
  - avdEngine.js, line 2247

##### Example

    avdEngine.setEchoCancellation(false);

##### Parameters:

Name | Type | Description
--- | --- | ---
`enable` | Boolean | 是否开启回声消除，默认为true

#### setEnableHardwareEncoding(isEnable)

Description:
  - 在加入会议之前设置是否启用硬件编码，默认为false，推荐有独立显卡的电脑设备开启，如性能足够，可实现高分辨率、高码率和高帧率
Source:
  - avdEngine.js, line 2299

##### Parameters:

Name | Type | Description
--- | --- | ---
`isEnable` | Boolean | 是否开启硬件编码

#### setEnableHardwareEncoding(isEnable)

Description:
  - 在加入会议之前设置是否启用硬件编码，默认为false，推荐有独立显卡的电脑设备开启，如性能足够，可实现高分辨率、高码率和高帧率
Source:
  - avdEngine.js, line 2299

##### Parameters:

Name | Type | Description
--- | --- | ---
`isEnable` | Boolean | 是否开启硬件编码

#### setIgnoreModifyResourceReq(isIgnore)

Description:
  - 是否忽略服务器下发的资源调整信令，true则不会响应服务器调整资源的通知，例如没有人订阅时发布的视频不会自动降低分辨率码率等
Source:
  - avdEngine.js, line 2286

##### Parameters:

Name | Type | Description
--- | --- | ---
`isIgnore` | Boolean | 是否忽略修改资源请求

#### setIgnoreModifyResourceReq(isIgnore)

Description:
  - 是否忽略服务器下发的资源调整信令，true则不会响应服务器调整资源的通知，例如没有人订阅时发布的视频不会自动降低分辨率码率等
Source:
  - avdEngine.js, line 2286

##### Parameters:

Name | Type | Description
--- | --- | ---
`isIgnore` | Boolean | 是否忽略修改资源请求

#### setLog(appenderModel, logLevel)

Description:
  - 设置日志显示方式和日志级别
Source:
  - avdEngine.js, line 448

##### Example

    avdEngine.setLog(Appender.browserConsole, LogLevel.debug);

##### Parameters:

Name | Type | Description
--- | --- | ---
`appenderModel` | Appender | 日志显示方式(枚举型), 默认值为Appender.browserConsole
`logLevel` | LogLevel | 日志级别(枚举型),默认值为LogLevel.info

#### setLog(appenderModel, logLevel)

Description:
  - 设置日志显示方式和日志级别
Source:
  - avdEngine.js, line 448

##### Example

    avdEngine.setLog(Appender.browserConsole, LogLevel.debug);

##### Parameters:

Name | Type | Description
--- | --- | ---
`appenderModel` | Appender | 日志显示方式(枚举型), 默认值为Appender.browserConsole
`logLevel` | LogLevel | 日志级别(枚举型),默认值为LogLevel.info

#### setMcuClusterRouteParams(mcuClusterRouteParams)

Description:
  - 在分布式集群部署中，设置加入房间时mcu服务器的路由参数分配
Source:
  - avdEngine.js, line 770

##### Parameters:

Name | Type | Description
--- | --- | ---
`mcuClusterRouteParams` | Object | 参数值格式参考如：{ip_tag":"local","idc_code":"idc_code"} ip_tag：对应于 rtc_node_addr 中的tag标志，用于区分同一台服务器的多网卡地址，可以自定义，然后在参数中传入。 举例的话，比如 'local','internal','dianxin','liantong' idc_code：对应于 rtc_node 中的 idc_code标志，用于区分不同的服务器，唯一，可以自定义。 比如北京服务器设置为'beijing'，杭州的设置为'hangzhou'，然后在参数中传入，用于定位到服务器。

#### setMcuClusterRouteParams(mcuClusterRouteParams)

Description:
  - 在分布式集群部署中，设置加入房间时mcu服务器的路由参数分配
Source:
  - avdEngine.js, line 770

##### Parameters:

Name | Type | Description
--- | --- | ---
`mcuClusterRouteParams` | Object | 参数值格式参考如：{ip_tag":"local","idc_code":"idc_code"} ip_tag：对应于 rtc_node_addr 中的tag标志，用于区分同一台服务器的多网卡地址，可以自定义，然后在参数中传入。 举例的话，比如 'local','internal','dianxin','liantong' idc_code：对应于 rtc_node 中的 idc_code标志，用于区分不同的服务器，唯一，可以自定义。 比如北京服务器设置为'beijing'，杭州的设置为'hangzhou'，然后在参数中传入，用于定位到服务器。

#### setMediaConnectType(mediaType,)

Description:
  - 设置媒体通道协议
Source:
  - avdEngine.js, line 693

##### Example

    avdEngine.setMediaConnectType(1);

##### Parameters:

Name | Type | Description
--- | --- | ---
`mediaType,` | int | 0 表示udp优先; 1表示 tcp优先，默认为0

#### setMediaConnectType(mediaType,)

Description:
  - 设置媒体通道协议
Source:
  - avdEngine.js, line 693

##### Example

    avdEngine.setMediaConnectType(1);

##### Parameters:

Name | Type | Description
--- | --- | ---
`mediaType,` | int | 0 表示udp优先; 1表示 tcp优先，默认为0

#### setNoiseSuppression(enable)

Description:
  - 设置降噪
Source:
  - avdEngine.js, line 2260

##### Parameters:

Name | Type | Description
--- | --- | ---
`enable` | Boolean |

#### setNoiseSuppression(enable)

Description:
  - 设置降噪
Source:
  - avdEngine.js, line 2260

##### Parameters:

Name | Type | Description
--- | --- | ---
`enable` | Boolean |

#### setRecordingMicrophone(microphoneId)

Description:
  - 设置成当前使用的麦克风
Source:
  - avdEngine.js, line 1454

##### Parameters:

Name | Type | Description
--- | --- | ---
`microphoneId` | String | 麦克风设备Id

#### setRecordingMicrophone(microphoneId)

Description:
  - 设置成当前使用的麦克风
Source:
  - avdEngine.js, line 1454

##### Parameters:

Name | Type | Description
--- | --- | ---
`microphoneId` | String | 麦克风设备Id

#### setReportLogger(appSign, appFunName)

Description:
  - 日志内容通过应用层提供的函数进行上报
Source:
  - avdEngine.js, line 513

##### Parameters:

Name | Type | Description
--- | --- | ---
`appSign` | string | 应用层设置的标识，用于区别某用户某一次加入会议所产生的所有日志
`appFunName` | Object | 应用层设置的方法函数，SDK调用该函数上报日志内容

#### setReportLogger(appSign, appFunName)

Description:
  - 日志内容通过应用层提供的函数进行上报
Source:
  - avdEngine.js, line 513

##### Parameters:

Name | Type | Description
--- | --- | ---
`appSign` | string | 应用层设置的标识，用于区别某用户某一次加入会议所产生的所有日志
`appFunName` | Object | 应用层设置的方法函数，SDK调用该函数上报日志内容

#### setRestFullProtocol(protocolStr)

Description:
  - 设置RestFull访问时应用的协议。 不设置默认取document.location.protocol
Source:
  - avdEngine.js, line 266

##### Parameters:

Name | Type | Description
--- | --- | ---
`protocolStr` | String | protocolStr RestFull访问应用时的协议，可填写如https:

#### setRestFullProtocol(protocolStr)

Description:
  - 设置RestFull访问时应用的协议。 不设置默认取document.location.protocol
Source:
  - avdEngine.js, line 266

##### Parameters:

Name | Type | Description
--- | --- | ---
`protocolStr` | String | protocolStr RestFull访问应用时的协议，可填写如https:

#### setRestfulRequestType(requestType,)

Description:
  - 设置RESTful API 请求类型
Source:
  - avdEngine.js, line 365

##### Example

    avdEngine.setRestfulRequestType(1);

##### Parameters:

Name | Type | Description
--- | --- | ---
`requestType,` | int | 0 表示GET; 1表示 POST，默认为0

#### setRestfulRequestType(requestType,)

Description:
  - 设置RESTful API 请求类型
Source:
  - avdEngine.js, line 365

##### Example

    avdEngine.setRestfulRequestType(1);

##### Parameters:

Name | Type | Description
--- | --- | ---
`requestType,` | int | 0 表示GET; 1表示 POST，默认为0

#### setSimulcastEnabled(isSimulcast)

Description:
  - 设置视频是否开启多流，默认值为false
Source:
  - avdEngine.js, line 293

##### Example

    avdEngine.setSimulcastEnabled(true);

##### Parameters:

Name | Type | Description
--- | --- | ---
`isSimulcast` | Boolean | isSimulcast false为不开启,true为开启

#### setSimulcastEnabled(isSimulcast)

Description:
  - 设置视频是否开启多流，默认值为false
Source:
  - avdEngine.js, line 293

##### Example

    avdEngine.setSimulcastEnabled(true);

##### Parameters:

Name | Type | Description
--- | --- | ---
`isSimulcast` | Boolean | isSimulcast false为不开启,true为开启

#### setTraceId(traceId)

Description:
  - 设置traceId，用于监控埋点实现
Source:
  - avdEngine.js, line 2350

##### Parameters:

Name | Type | Description
--- | --- | ---
`traceId` | String |

#### setTraceId(traceId)

Description:
  - 设置traceId，用于监控埋点实现
Source:
  - avdEngine.js, line 2350

##### Parameters:

Name | Type | Description
--- | --- | ---
`traceId` | String |

#### (async) setVideoCoding(videoCodingType)

Description:
  - 设置视频编码格式
Source:
  - avdEngine.js, line 534

##### Example

    avdEngine.setVideoCoding(VideoCodingType.VP8).then(function(){}).otherwise(function(error){});

##### Parameters:

Name | Type | Description
--- | --- | ---
`videoCodingType` | VideoCodingType | 视频编码格式(枚举型),默认值为videoCodingType.H264

#### (async) setVideoCoding(videoCodingType)

Description:
  - 设置视频编码格式
Source:
  - avdEngine.js, line 534

##### Example

    avdEngine.setVideoCoding(VideoCodingType.VP8).then(function(){}).otherwise(function(error){});

##### Parameters:

Name | Type | Description
--- | --- | ---
`videoCodingType` | VideoCodingType | 视频编码格式(枚举型),默认值为videoCodingType.H264

## AVDEngine

#### new AVDEngine()

Description:
  - AVDEngine构造函数,实例化avdEngine 对象，用于获取摄像头列表、麦克风列表、检查浏览器兼容性、控制日志等级及日志保存等功能。
Source:
  - avdEngine.js, line 24

##### Example

    var avdEngine = new AVDEngine();

### Methods

#### addCallback(type, callback)

Description:
  - 引擎级别的回调
Source:
  - avdEngine.js, line 212

##### Example

    avdEngine.addCallback(EngineCallback.device_microphone_change, onMicrophoneDeviceChangeHandle)
    avdEngine.addCallback(EngineCallback.device_camera_change, onCameraDeviceChangeHandle)

    //param {String} changeType -  设备变化类型，可以为"add"、"remove"
    //param {Array} deviceIdList - 变动的麦克风设备ID列表
    function onMicrophoneDeviceChangeHandle(changeType, deviceIdList) {}

    //param {String} changeType -  设备变化类型，可以为"add"、"remove"
    //param {Array} deviceIdList - 变动的摄像头设备ID列表
    function onCameraDeviceChangeHandle(changeType, deviceIdList) {}

##### Parameters:

Name | Type | Description
--- | --- | ---
`type` | EngineCallback | 回调枚举标识, 包括EngineCallback.device_microphone_changet 和 device_camera_change.
`callback` | Object | 回调方法名,可以自定义，建议保持默认值

#### addCallback(type, callback)

Description:
  - 引擎级别的回调
Source:
  - avdEngine.js, line 212

##### Example

    avdEngine.addCallback(EngineCallback.device_microphone_change, onMicrophoneDeviceChangeHandle)
    avdEngine.addCallback(EngineCallback.device_camera_change, onCameraDeviceChangeHandle)

    //param {String} changeType -  设备变化类型，可以为"add"、"remove"
    //param {Array} deviceIdList - 变动的麦克风设备ID列表
    function onMicrophoneDeviceChangeHandle(changeType, deviceIdList) {}

    //param {String} changeType -  设备变化类型，可以为"add"、"remove"
    //param {Array} deviceIdList - 变动的摄像头设备ID列表
    function onCameraDeviceChangeHandle(changeType, deviceIdList) {}

##### Parameters:

Name | Type | Description
--- | --- | ---
`type` | EngineCallback | 回调枚举标识, 包括EngineCallback.device_microphone_changet 和 device_camera_change.
`callback` | Object | 回调方法名,可以自定义，建议保持默认值

#### checkAudioLevel(intervalMilis, showAudioLevel)

Description:
  - 设备检测，麦克风音量的检测回调
Source:
  - avdEngine.js, line 1924

##### Example

    avdEngine.checkAudioLevel(1000,showAudioLevel);
    function showAudioLevelm(audioLevel) {}

##### Parameters:

Name | Type | Description
--- | --- | ---
`intervalMilis` | int | 音量采购频率，单位为毫秒
`showAudioLevel` | Object | 音量值回调方法

#### checkAudioLevel(intervalMilis, showAudioLevel)

Description:
  - 设备检测，麦克风音量的检测回调
Source:
  - avdEngine.js, line 1924

##### Example

    avdEngine.checkAudioLevel(1000,showAudioLevel);
    function showAudioLevelm(audioLevel) {}

##### Parameters:

Name | Type | Description
--- | --- | ---
`intervalMilis` | int | 音量采购频率，单位为毫秒
`showAudioLevel` | Object | 音量值回调方法

#### checkBrowserPluginSupport() → {boolean}

Description:
  - 检测当前浏览器是否通过插件支持rtc能力
Source:
  - avdEngine.js, line 431

##### Example

    var browserPluginSupport = avdEngine.checkBrowserPluginSupport();

##### Returns:

- 是否支持， false:不支持; true:支持

Type
  boolean

#### checkBrowserPluginSupport() → {boolean}

Description:
  - 检测当前浏览器是否通过插件支持rtc能力
Source:
  - avdEngine.js, line 431

##### Example

    var browserPluginSupport = avdEngine.checkBrowserPluginSupport();

##### Returns:

- 是否支持， false:不支持; true:支持

Type
  boolean

#### checkBrowserSupport() → {boolean}

Description:
  - 检测当前浏览器是否支持rtc能力，目前仅支持Chrome内核的浏览器、firefox和safair.
Source:
  - avdEngine.js, line 415

##### Example

    var browserSupport = avdEngine.checkBrowserSupport();

##### Returns:

- 是否支持， false:不支持; true:支持

Type
  boolean

#### checkBrowserSupport() → {boolean}

Description:
  - 检测当前浏览器是否支持rtc能力，目前仅支持Chrome内核的浏览器、firefox和safair.
Source:
  - avdEngine.js, line 415

##### Example

    var browserSupport = avdEngine.checkBrowserSupport();

##### Returns:

- 是否支持， false:不支持; true:支持

Type
  boolean

#### checkCloseAudio()

Description:
  - 设备检测，关闭麦克风
Source:
  - avdEngine.js, line 1955

##### Example

    avdEngine.checkCloseAudio();

#### checkCloseAudio()

Description:
  - 设备检测，关闭麦克风
Source:
  - avdEngine.js, line 1955

##### Example

    avdEngine.checkCloseAudio();

#### checkCloseVideo()

Description:
  - 设备检测，关闭摄像头
Source:
  - avdEngine.js, line 1938

##### Example

    avdEngine.checkCloseVideo();

#### checkCloseVideo()

Description:
  - 设备检测，关闭摄像头
Source:
  - avdEngine.js, line 1938

##### Example

    avdEngine.checkCloseVideo();

#### (async) checkOpenAudio(microphoneId) → {Object}

Description:
  - 设备检测，打开麦克风
Source:
  - avdEngine.js, line 1745

##### Example

    avdEngine.checkOpenAudio().then(showAudio).otherwise(alertError);

    function showAudio(stream) {
       checkAudio.srcObject = stream;
    }

##### Parameters:

Name | Type | Description
--- | --- | ---
`microphoneId` | String | 麦克风ID，空字符串时则默认选择打开一个麦克风

##### Returns:

- 音频流对象

Type
  Object

#### (async) checkOpenAudio(microphoneId) → {Object}

Description:
  - 设备检测，打开麦克风
Source:
  - avdEngine.js, line 1745

##### Example

    avdEngine.checkOpenAudio().then(showAudio).otherwise(alertError);

    function showAudio(stream) {
       checkAudio.srcObject = stream;
    }

##### Parameters:

Name | Type | Description
--- | --- | ---
`microphoneId` | String | 麦克风ID，空字符串时则默认选择打开一个麦克风

##### Returns:

- 音频流对象

Type
  Object

#### (async) checkOpenVideo(cameraId, resolution, framerate) → {Object}

Description:
  - 设备检测，打开摄像头
Source:
  - avdEngine.js, line 1654

##### Example

    avdEngine.checkOpenVideo(cameraId, resolution, framerate).then(showVideo).otherwise(alertError);

    function showVideo(stream) {
       checkVideo.srcObject = stream;
    }

##### Parameters:

Name | Type | Description
--- | --- | ---
`cameraId` | String | 摄像头ID，空字符串时则默认选择打开一个摄像头
`resolution` | Int | 视频分辨率
`framerate` | Int | 视频帧率

##### Returns:

- 视频流对象

Type
  Object

#### (async) checkOpenVideo(cameraId, resolution, framerate) → {Object}

Description:
  - 设备检测，打开摄像头
Source:
  - avdEngine.js, line 1654

##### Example

    avdEngine.checkOpenVideo(cameraId, resolution, framerate).then(showVideo).otherwise(alertError);

    function showVideo(stream) {
       checkVideo.srcObject = stream;
    }

##### Parameters:

Name | Type | Description
--- | --- | ---
`cameraId` | String | 摄像头ID，空字符串时则默认选择打开一个摄像头
`resolution` | Int | 视频分辨率
`framerate` | Int | 视频帧率

##### Returns:

- 视频流对象

Type
  Object

#### (async) checkOpenVideoAndAudio(cameraId, microphoneId, resolution, framerate) → {Object}

Description:
  - 设备检测，打开摄像头和麦克风
Source:
  - avdEngine.js, line 1815

##### Example

    avdEngine.checkOpenVideoAndAudio().then(showVideoAndAudio).otherwise(alertError);

    function showVideoAndAudio(stream) {
       checkVideo.srcObject = stream.videoStream;
       checkAudio.srcObject = stream.audioStream;
    }

##### Parameters:

Name | Type | Description
--- | --- | ---
`cameraId` | String | 摄像头ID，空字符串时则默认选择打开一个摄像头
`microphoneId` | String | 麦克风ID，空字符串时则默认选择打开一个麦克风
`resolution` | Int | 视频分辨率
`framerate` | Int | 视频帧率

##### Returns:

- 音视频流对象

Type
  Object

#### (async) checkOpenVideoAndAudio(cameraId, microphoneId, resolution, framerate) → {Object}

Description:
  - 设备检测，打开摄像头和麦克风
Source:
  - avdEngine.js, line 1815

##### Example

    avdEngine.checkOpenVideoAndAudio().then(showVideoAndAudio).otherwise(alertError);

    function showVideoAndAudio(stream) {
       checkVideo.srcObject = stream.videoStream;
       checkAudio.srcObject = stream.audioStream;
    }

##### Parameters:

Name | Type | Description
--- | --- | ---
`cameraId` | String | 摄像头ID，空字符串时则默认选择打开一个摄像头
`microphoneId` | String | 麦克风ID，空字符串时则默认选择打开一个麦克风
`resolution` | Int | 视频分辨率
`framerate` | Int | 视频帧率

##### Returns:

- 音视频流对象

Type
  Object

#### (async) getAllDevices() → {Object}

Description:
  - 获取当前所有设备的原始对象，需要应用层自己去疏理摄像头，麦克风等。
Source:
  - avdEngine.js, line 1049

##### Example

    avdEngine.getAllDevices().then(onAllDevices).otherwise(showError);

    function onAllDevices(devices) {
       devices.forEach(function(device){
    	     if (device.kind === 'videoinput' || device.kind === 'video') {
    	           console.log("camera:",device);
          }else if(device.kind === 'audioinput' || device.kind === 'audio'){
    	           console.log("microphone:",device);
          }else if(device.kind === 'audiooutput'){
    	           console.log("speaker:",device);
          }
       }
    }

##### Returns:

- devices - 所有设备的原始对象

Type
  Object

#### (async) getAllDevices() → {Object}

Description:
  - 获取当前所有设备的原始对象，需要应用层自己去疏理摄像头，麦克风等。
Source:
  - avdEngine.js, line 1049

##### Example

    avdEngine.getAllDevices().then(onAllDevices).otherwise(showError);

    function onAllDevices(devices) {
       devices.forEach(function(device){
    	     if (device.kind === 'videoinput' || device.kind === 'video') {
    	           console.log("camera:",device);
          }else if(device.kind === 'audioinput' || device.kind === 'audio'){
    	           console.log("microphone:",device);
          }else if(device.kind === 'audiooutput'){
    	           console.log("speaker:",device);
          }
       }
    }

##### Returns:

- devices - 所有设备的原始对象

Type
  Object

#### getAudioAutoSub()

Description:
  - 获取当前的音频的订阅方式，true为自动订阅,flase为手动订阅
Source:
  - avdEngine.js, line 681

##### Example

    avdEngine.getAudioAutoSub();

#### getAudioAutoSub()

Description:
  - 获取当前的音频的订阅方式，true为自动订阅,flase为手动订阅
Source:
  - avdEngine.js, line 681

##### Example

    avdEngine.getAudioAutoSub();

#### getAudioBatchEnabled()

Description:
  - 获取音频自动订阅时,对多路音频批量订阅处理的状态值
Source:
  - avdEngine.js, line 332

#### getAudioBatchEnabled()

Description:
  - 获取音频自动订阅时,对多路音频批量订阅处理的状态值
Source:
  - avdEngine.js, line 332

#### getAudioCoding()

Description:
  - 获取当前的音频编码格式
Source:
  - avdEngine.js, line 656

##### Example

    avdEngine.getAudioCoding();

#### getAudioCoding()

Description:
  - 获取当前的音频编码格式
Source:
  - avdEngine.js, line 656

##### Example

    avdEngine.getAudioCoding();

#### getBrowserDetect() → {Object}

Description:
  - 获取浏览器检测结果
Source:
  - avdEngine.js, line 400

##### Example

    var detect = avdEngine.getBrowserDetect();

    detect.browser.name:  浏览器内核名称
    detect.browser.fullVersion: 内核版本
    detect.browser.isCustomized: 是否是定制外壳
    detect.browser.shellFullVersion：外壳版本
    detect.osName: 操作系统名称
    detect.getUserMediaSupport:是否支持webrtc的GetUserMedia
    detect.RTCPeerConnectionSupport:是否支持webrtc的RTCPeerConnection
    detect.dataChannelSupport: 是否支持webrtc的DataChannel
    detect.WebSocketSupport: 是否支持WebSocket
    detect.screenSharingSupport: 是否支持屏幕共享(chrome42以上及https访问)
    detect.h264Support: 是否支持H264(chrome52及以上)

##### Returns:

- 浏览器检测结果对象

Type
  Object

#### getBrowserDetect() → {Object}

Description:
  - 获取浏览器检测结果
Source:
  - avdEngine.js, line 400

##### Example

    var detect = avdEngine.getBrowserDetect();

    detect.browser.name:  浏览器内核名称
    detect.browser.fullVersion: 内核版本
    detect.browser.isCustomized: 是否是定制外壳
    detect.browser.shellFullVersion：外壳版本
    detect.osName: 操作系统名称
    detect.getUserMediaSupport:是否支持webrtc的GetUserMedia
    detect.RTCPeerConnectionSupport:是否支持webrtc的RTCPeerConnection
    detect.dataChannelSupport: 是否支持webrtc的DataChannel
    detect.WebSocketSupport: 是否支持WebSocket
    detect.screenSharingSupport: 是否支持屏幕共享(chrome42以上及https访问)
    detect.h264Support: 是否支持H264(chrome52及以上)

##### Returns:

- 浏览器检测结果对象

Type
  Object

#### getCustomerTokenEnabled()

Description:
  - 获取当前是否开启客户自己的认证token状态值
Source:
  - avdEngine.js, line 354

#### getCustomerTokenEnabled()

Description:
  - 获取当前是否开启客户自己的认证token状态值
Source:
  - avdEngine.js, line 354

#### getDataCryptoType()

Description:
  - 获取当前的数据加密类型
Source:
  - avdEngine.js, line 735

##### Example

    avdEngine.getDataCryptoType();

#### getDataCryptoType()

Description:
  - 获取当前的数据加密类型
Source:
  - avdEngine.js, line 735

##### Example

    avdEngine.getDataCryptoType();

#### getElectronManager()

Description:
  - 获取ElectronManager对象
Source:
  - avdEngine.js, line 281

##### Example

    var electronManager = avdEngine.getElectronManager();

#### getElectronManager()

Description:
  - 获取ElectronManager对象
Source:
  - avdEngine.js, line 281

##### Example

    var electronManager = avdEngine.getElectronManager();

#### getMediaConnectType()

Description:
  - 获取媒体通道协议，0 表示udp优先; 1表示 tcp优先，默认为0
Source:
  - avdEngine.js, line 705

##### Example

    avdEngine.getMediaConnectType();

#### getMediaConnectType()

Description:
  - 获取媒体通道协议，0 表示udp优先; 1表示 tcp优先，默认为0
Source:
  - avdEngine.js, line 705

##### Example

    avdEngine.getMediaConnectType();

#### getResolutionEnum()

Description:
  - 获取摄像头分辨率枚举,该枚举值只是罗列了主流的分辨率，而非真实的当前摄像头支持的分辨率集。
Source:
  - avdEngine.js, line 753

##### Example

    avdEngine.getResolutionEnum().then(fillResolutionElement);

    function fillResolutionElement(resolutionEnum){
    	    for(var key in resolutionEnum){
    			 	var resolutionObject = resolutionEnum[key];
    			 	var value = resolutionObject.width +" X " + resolutionObject.height;
    	     }
    }

#### getResolutionEnum()

Description:
  - 获取摄像头分辨率枚举,该枚举值只是罗列了主流的分辨率，而非真实的当前摄像头支持的分辨率集。
Source:
  - avdEngine.js, line 753

##### Example

    avdEngine.getResolutionEnum().then(fillResolutionElement);

    function fillResolutionElement(resolutionEnum){
    	    for(var key in resolutionEnum){
    			 	var resolutionObject = resolutionEnum[key];
    			 	var value = resolutionObject.width +" X " + resolutionObject.height;
    	     }
    }

#### getRestfulRequestType()

Description:
  - 获取RESTful API 请求类型，0 表示GET; 1表示 POST，默认为0
Source:
  - avdEngine.js, line 376

##### Example

    avdEngine.getRestfulRequestType();

#### getRestfulRequestType()

Description:
  - 获取RESTful API 请求类型，0 表示GET; 1表示 POST，默认为0
Source:
  - avdEngine.js, line 376

##### Example

    avdEngine.getRestfulRequestType();

#### getRoom(roomId) → {Object}

Description:
  - 获取房间对象
Source:
  - avdEngine.js, line 1011

##### Parameters:

Name | Type | Description
--- | --- | ---
`roomId` | String | 房间ID

##### Returns:

room - 房间对象

Type
  Object

#### getRoom(roomId) → {Object}

Description:
  - 获取房间对象
Source:
  - avdEngine.js, line 1011

##### Parameters:

Name | Type | Description
--- | --- | ---
`roomId` | String | 房间ID

##### Returns:

room - 房间对象

Type
  Object

#### getSimulcastEnabled()

Description:
  - 获取视频是否开启多流的状态值
Source:
  - avdEngine.js, line 311

#### getSimulcastEnabled()

Description:
  - 获取视频是否开启多流的状态值
Source:
  - avdEngine.js, line 311

#### getTraceId() → {String}

Description:
  - 获取traceId
Source:
  - avdEngine.js, line 2359

##### Returns:

traceId

Type
  String

#### getTraceId() → {String}

Description:
  - 获取traceId
Source:
  - avdEngine.js, line 2359

##### Returns:

traceId

Type
  String

#### getVersion() → {String}

Description:
  - 获取当前rtc web SDK的版本号
Source:
  - avdEngine.js, line 190

##### Example

    var Version = avdEngine.getVersion();

##### Returns:

- 版本号

Type
  String

#### getVersion() → {String}

Description:
  - 获取当前rtc web SDK的版本号
Source:
  - avdEngine.js, line 190

##### Example

    var Version = avdEngine.getVersion();

##### Returns:

- 版本号

Type
  String

#### getVideoCoding()

Description:
  - 获取当前的视频编码格式
Source:
  - avdEngine.js, line 584

##### Example

    avdEngine.getVideoCoding();

#### getVideoCoding()

Description:
  - 获取当前的视频编码格式
Source:
  - avdEngine.js, line 584

##### Example

    avdEngine.getVideoCoding();

#### (async) init(serverURI, accessToken, isUseCascade)

Description:
  - 引擎初始化
Source:
  - avdEngine.js, line 858

##### Example

    avdEngine.init('avd.nice2meet.cn:9610','ZDgyNGU1MGU0ZGY2MTJlZWY3NjkwMjQ5NDY0YWE3MDkxZGJjNmRiZg==').then(function(){}).otherwise(function(error){});

##### Parameters:

Name | Type | Description
--- | --- | ---
`serverURI` | String | MCU服务器地址
`accessToken` | String | 访问令牌
`isUseCascade` | boolean | 是否级联加入会议，可以不传，默认为false

#### (async) init(serverURI, accessToken, isUseCascade)

Description:
  - 引擎初始化
Source:
  - avdEngine.js, line 858

##### Example

    avdEngine.init('avd.nice2meet.cn:9610','ZDgyNGU1MGU0ZGY2MTJlZWY3NjkwMjQ5NDY0YWE3MDkxZGJjNmRiZg==').then(function(){}).otherwise(function(error){});

##### Parameters:

Name | Type | Description
--- | --- | ---
`serverURI` | String | MCU服务器地址
`accessToken` | String | 访问令牌
`isUseCascade` | boolean | 是否级联加入会议，可以不传，默认为false

#### (async) initDevice() → {int}

Description:
  - 初始化摄像头、麦克风设备

    逻辑：摄像头设备会全部初始化到服务器,麦克风设备只会初始化默认的一个到服务器

Source:
  - avdEngine.js, line 1090

##### Example

    avdEngine.initDevice().then(function(result){
    	   if(result == 1){
    	      console.log('设备初始化完成');
        }
    }).otherwise(function(error){});

##### Returns:

- 返回初始化完成状态。1:代表完成

Type
  int

#### (async) initDevice() → {int}

Description:
  - 初始化摄像头、麦克风设备

    逻辑：摄像头设备会全部初始化到服务器,麦克风设备只会初始化默认的一个到服务器

Source:
  - avdEngine.js, line 1090

##### Example

    avdEngine.initDevice().then(function(result){
    	   if(result == 1){
    	      console.log('设备初始化完成');
        }
    }).otherwise(function(error){});

##### Returns:

- 返回初始化完成状态。1:代表完成

Type
  int

#### (async) initWithOEM(serverURI, oemName)

Description:
  - avdEngine OEM初始化
Source:
  - avdEngine.js, line 947

##### Parameters:

Name | Type | Description
--- | --- | ---
`serverURI` | String | MCU服务器地址
`oemName` | String | oem名称

#### (async) initWithOEM(serverURI, oemName)

Description:
  - avdEngine OEM初始化
Source:
  - avdEngine.js, line 947

##### Parameters:

Name | Type | Description
--- | --- | ---
`serverURI` | String | MCU服务器地址
`oemName` | String | oem名称

#### obtainRoom(roomId) → {Object}

Description:
  - 获取房间。如房间存在,直接返回，不存在时创建房间后返回
Source:
  - avdEngine.js, line 975

##### Example

    var roomId = '13124323454';
    room = avdEngine.obtainRoom(roomId);

##### Parameters:

Name | Type | Description
--- | --- | ---
`roomId` | String | 房间ID

##### Returns:

room - 房间对象

Type
  Object

#### obtainRoom(roomId) → {Object}

Description:
  - 获取房间。如房间存在,直接返回，不存在时创建房间后返回
Source:
  - avdEngine.js, line 975

##### Example

    var roomId = '13124323454';
    room = avdEngine.obtainRoom(roomId);

##### Parameters:

Name | Type | Description
--- | --- | ---
`roomId` | String | 房间ID

##### Returns:

room - 房间对象

Type
  Object

#### preloadBeautyModel() → {Promise}

Description:
  - 预加载美颜模型（人脸检测），可以在用户点击美颜按钮之前提前调用，显著减少首次启用美颜的等待时间
Source:
  - avdEngine.js, line 2322

##### Example

    avdEngine.preloadBeautyModel().then(function() { console.log('预加载完成'); }).catch(function(e) { console.error('预加载失败:', e); });

##### Returns:

- 预加载结果

Type
  Promise

#### preloadBeautyModel() → {Promise}

Description:
  - 预加载美颜模型（人脸检测），可以在用户点击美颜按钮之前提前调用，显著减少首次启用美颜的等待时间
Source:
  - avdEngine.js, line 2322

##### Example

    avdEngine.preloadBeautyModel().then(function() { console.log('预加载完成'); }).catch(function(e) { console.error('预加载失败:', e); });

##### Returns:

- 预加载结果

Type
  Promise

#### setApplyToElectron(islectron, protocolStr)

Description:
  - Electron开发应用时，设置应用的协议
Source:
  - avdEngine.js, line 248

##### Parameters:

Name | Type | Description
--- | --- | ---
`islectron` | Boolean | islectron true为应用于Electron
`protocolStr` | String | protocolStr Electron应用时的协议，可不填，默认为http:

#### setApplyToElectron(islectron, protocolStr)

Description:
  - Electron开发应用时，设置应用的协议
Source:
  - avdEngine.js, line 248

##### Parameters:

Name | Type | Description
--- | --- | ---
`islectron` | Boolean | islectron true为应用于Electron
`protocolStr` | String | protocolStr Electron应用时的协议，可不填，默认为http:

#### setAudioAutoSub(isAudioAutodSub)

Description:
  - 设置音频订阅方式是否为自动订阅，默认值为true
Source:
  - avdEngine.js, line 668

##### Example

    avdEngine.setAudioAutoSub(false);

##### Parameters:

Name | Type | Description
--- | --- | ---
`isAudioAutodSub` | Boolean | true为自动订阅,flase为手动订阅

#### setAudioAutoSub(isAudioAutodSub)

Description:
  - 设置音频订阅方式是否为自动订阅，默认值为true
Source:
  - avdEngine.js, line 668

##### Example

    avdEngine.setAudioAutoSub(false);

##### Parameters:

Name | Type | Description
--- | --- | ---
`isAudioAutodSub` | Boolean | true为自动订阅,flase为手动订阅

#### setAudioBatchEnabled(isAudioBatch)

Description:
  - 音频自动订阅时,设置对多路音频批量订阅处理,这样可以只进行一次SDP交互以提高性能,默认值为false，
Source:
  - avdEngine.js, line 322

##### Example

    avdEngine.setAudioBatchEnabled(true);

##### Parameters:

Name | Type | Description
--- | --- | ---
`isAudioBatch` | Boolean | isAudioBatch false为不开启,true为开启

#### setAudioBatchEnabled(isAudioBatch)

Description:
  - 音频自动订阅时,设置对多路音频批量订阅处理,这样可以只进行一次SDP交互以提高性能,默认值为false，
Source:
  - avdEngine.js, line 322

##### Example

    avdEngine.setAudioBatchEnabled(true);

##### Parameters:

Name | Type | Description
--- | --- | ---
`isAudioBatch` | Boolean | isAudioBatch false为不开启,true为开启

#### (async) setAudioCoding(audioCodingType)

Description:
  - 设置音频编码格式
Source:
  - avdEngine.js, line 597

##### Example

    avdEngine.setAudioCoding(AudioCodingType.opus).then(function(){}).otherwise(function(error){});

##### Parameters:

Name | Type | Description
--- | --- | ---
`audioCodingType` | AudioCodingType | 音频编码格式(枚举型),默认值为AudioCodingType.opus

#### (async) setAudioCoding(audioCodingType)

Description:
  - 设置音频编码格式
Source:
  - avdEngine.js, line 597

##### Example

    avdEngine.setAudioCoding(AudioCodingType.opus).then(function(){}).otherwise(function(error){});

##### Parameters:

Name | Type | Description
--- | --- | ---
`audioCodingType` | AudioCodingType | 音频编码格式(枚举型),默认值为AudioCodingType.opus

#### setAutoGainControl(enable)

Description:
  - 设置自动增益
Source:
  - avdEngine.js, line 2273

##### Parameters:

Name | Type | Description
--- | --- | ---
`enable` | Boolean |

#### setAutoGainControl(enable)

Description:
  - 设置自动增益
Source:
  - avdEngine.js, line 2273

##### Parameters:

Name | Type | Description
--- | --- | ---
`enable` | Boolean |

#### setBugout(logFilename)

Description:
  - 设置日志的可输出下载地址
Source:
  - avdEngine.js, line 496

##### Example

    avdEngine.setBugout(avdlog.txt);

##### Parameters:

Name | Type | Description
--- | --- | ---
`logFilename` | String | 输出下载地址

#### setBugout(logFilename)

Description:
  - 设置日志的可输出下载地址
Source:
  - avdEngine.js, line 496

##### Example

    avdEngine.setBugout(avdlog.txt);

##### Parameters:

Name | Type | Description
--- | --- | ---
`logFilename` | String | 输出下载地址

#### setCustomerTokenEnabled(customerTokenEnabled)

Description:
  - 设置是否开启客户自己的认证token,不调接口设置时，默认值为不开启
Source:
  - avdEngine.js, line 344

##### Example

    avdEngine.setCustomerTokenEnabled(true);

##### Parameters:

Name | Type | Description
--- | --- | ---
`customerTokenEnabled` | Boolean | customerTokenEnabled false为不开启,true为开启

#### setCustomerTokenEnabled(customerTokenEnabled)

Description:
  - 设置是否开启客户自己的认证token,不调接口设置时，默认值为不开启
Source:
  - avdEngine.js, line 344

##### Example

    avdEngine.setCustomerTokenEnabled(true);

##### Parameters:

Name | Type | Description
--- | --- | ---
`customerTokenEnabled` | Boolean | customerTokenEnabled false为不开启,true为开启

#### setDataCryptoType(dataCryptoType)

Description:
  - 设置数据加密类型
Source:
  - avdEngine.js, line 718

##### Example

    avdEngine.setDataCryptoType(DataCryptoType.AES256);

##### Parameters:

Name | Type | Description
--- | --- | ---
`dataCryptoType` | DataCryptoType | 数据加密类型(枚举型),默认值为DataCryptoType.AES128

#### setDataCryptoType(dataCryptoType)

Description:
  - 设置数据加密类型
Source:
  - avdEngine.js, line 718

##### Example

    avdEngine.setDataCryptoType(DataCryptoType.AES256);

##### Parameters:

Name | Type | Description
--- | --- | ---
`dataCryptoType` | DataCryptoType | 数据加密类型(枚举型),默认值为DataCryptoType.AES128

#### setDefaultMediaPublishKeepAliveTime(keepAliveTime)

Description:
  - 设置媒体流推送的保活时长(单位为毫秒)，不设置默认为15000毫秒
Source:
  - avdEngine.js, line 840

##### Parameters:

Name | Type | Description
--- | --- | ---
`keepAliveTime` | int | 保活时长

#### setDefaultMediaPublishKeepAliveTime(keepAliveTime)

Description:
  - 设置媒体流推送的保活时长(单位为毫秒)，不设置默认为15000毫秒
Source:
  - avdEngine.js, line 840

##### Parameters:

Name | Type | Description
--- | --- | ---
`keepAliveTime` | int | 保活时长

#### setDefaultScreenParams(maxWidth, maxHeight, minFrameRate, maxFrameRate)

Description:
  - 设置桌面共享相关的默认参数值
Source:
  - avdEngine.js, line 820

##### Example

    avdEngine.setDefaultScreenParams(1080,720,5,10);

##### Parameters:

Name | Type | Description
--- | --- | ---
`maxWidth` | int | 分辨率最大宽度，默认值为1920
`maxHeight` | int | 分辨率最大高度，默认值为1080
`minFrameRate` | int | 最小帧率, 默认值为5
`maxFrameRate` | int | 最大帧率, 默认值为10

#### setDefaultScreenParams(maxWidth, maxHeight, minFrameRate, maxFrameRate)

Description:
  - 设置桌面共享相关的默认参数值
Source:
  - avdEngine.js, line 820

##### Example

    avdEngine.setDefaultScreenParams(1080,720,5,10);

##### Parameters:

Name | Type | Description
--- | --- | ---
`maxWidth` | int | 分辨率最大宽度，默认值为1920
`maxHeight` | int | 分辨率最大高度，默认值为1080
`minFrameRate` | int | 最小帧率, 默认值为5
`maxFrameRate` | int | 最大帧率, 默认值为10

#### setDefaultVideoParams(width, height, resolutionSetType, frameRate)

Description:
  - 设置视频相关的默认参数值
Source:
  - avdEngine.js, line 786

##### Example

    avdEngine.setDefaultVideoParams(1080,720,ResolutionSetType.ideal,25);

##### Parameters:

Name | Type | Description
--- | --- | ---
`width` | int | 分辨率宽，默认值为640
`height` | int | 分辨率高，默认值为480
`resolutionSetType` | Object | 分辨率设置类型枚举，默认值为强制即ResolutionSetType.ideal
`frameRate` | int | 视频帧率，默认值为20

#### setDefaultVideoParams(width, height, resolutionSetType, frameRate)

Description:
  - 设置视频相关的默认参数值
Source:
  - avdEngine.js, line 786

##### Example

    avdEngine.setDefaultVideoParams(1080,720,ResolutionSetType.ideal,25);

##### Parameters:

Name | Type | Description
--- | --- | ---
`width` | int | 分辨率宽，默认值为640
`height` | int | 分辨率高，默认值为480
`resolutionSetType` | Object | 分辨率设置类型枚举，默认值为强制即ResolutionSetType.ideal
`frameRate` | int | 视频帧率，默认值为20

#### setEchoCancellation(enable)

Description:
  - 设置回声消除
Source:
  - avdEngine.js, line 2247

##### Example

    avdEngine.setEchoCancellation(false);

##### Parameters:

Name | Type | Description
--- | --- | ---
`enable` | Boolean | 是否开启回声消除，默认为true

#### setEchoCancellation(enable)

Description:
  - 设置回声消除
Source:
  - avdEngine.js, line 2247

##### Example

    avdEngine.setEchoCancellation(false);

##### Parameters:

Name | Type | Description
--- | --- | ---
`enable` | Boolean | 是否开启回声消除，默认为true

#### setEnableHardwareEncoding(isEnable)

Description:
  - 在加入会议之前设置是否启用硬件编码，默认为false，推荐有独立显卡的电脑设备开启，如性能足够，可实现高分辨率、高码率和高帧率
Source:
  - avdEngine.js, line 2299

##### Parameters:

Name | Type | Description
--- | --- | ---
`isEnable` | Boolean | 是否开启硬件编码

#### setEnableHardwareEncoding(isEnable)

Description:
  - 在加入会议之前设置是否启用硬件编码，默认为false，推荐有独立显卡的电脑设备开启，如性能足够，可实现高分辨率、高码率和高帧率
Source:
  - avdEngine.js, line 2299

##### Parameters:

Name | Type | Description
--- | --- | ---
`isEnable` | Boolean | 是否开启硬件编码

#### setIgnoreModifyResourceReq(isIgnore)

Description:
  - 是否忽略服务器下发的资源调整信令，true则不会响应服务器调整资源的通知，例如没有人订阅时发布的视频不会自动降低分辨率码率等
Source:
  - avdEngine.js, line 2286

##### Parameters:

Name | Type | Description
--- | --- | ---
`isIgnore` | Boolean | 是否忽略修改资源请求

#### setIgnoreModifyResourceReq(isIgnore)

Description:
  - 是否忽略服务器下发的资源调整信令，true则不会响应服务器调整资源的通知，例如没有人订阅时发布的视频不会自动降低分辨率码率等
Source:
  - avdEngine.js, line 2286

##### Parameters:

Name | Type | Description
--- | --- | ---
`isIgnore` | Boolean | 是否忽略修改资源请求

#### setLog(appenderModel, logLevel)

Description:
  - 设置日志显示方式和日志级别
Source:
  - avdEngine.js, line 448

##### Example

    avdEngine.setLog(Appender.browserConsole, LogLevel.debug);

##### Parameters:

Name | Type | Description
--- | --- | ---
`appenderModel` | Appender | 日志显示方式(枚举型), 默认值为Appender.browserConsole
`logLevel` | LogLevel | 日志级别(枚举型),默认值为LogLevel.info

#### setLog(appenderModel, logLevel)

Description:
  - 设置日志显示方式和日志级别
Source:
  - avdEngine.js, line 448

##### Example

    avdEngine.setLog(Appender.browserConsole, LogLevel.debug);

##### Parameters:

Name | Type | Description
--- | --- | ---
`appenderModel` | Appender | 日志显示方式(枚举型), 默认值为Appender.browserConsole
`logLevel` | LogLevel | 日志级别(枚举型),默认值为LogLevel.info

#### setMcuClusterRouteParams(mcuClusterRouteParams)

Description:
  - 在分布式集群部署中，设置加入房间时mcu服务器的路由参数分配
Source:
  - avdEngine.js, line 770

##### Parameters:

Name | Type | Description
--- | --- | ---
`mcuClusterRouteParams` | Object | 参数值格式参考如：{ip_tag":"local","idc_code":"idc_code"} ip_tag：对应于 rtc_node_addr 中的tag标志，用于区分同一台服务器的多网卡地址，可以自定义，然后在参数中传入。 举例的话，比如 'local','internal','dianxin','liantong' idc_code：对应于 rtc_node 中的 idc_code标志，用于区分不同的服务器，唯一，可以自定义。 比如北京服务器设置为'beijing'，杭州的设置为'hangzhou'，然后在参数中传入，用于定位到服务器。

#### setMcuClusterRouteParams(mcuClusterRouteParams)

Description:
  - 在分布式集群部署中，设置加入房间时mcu服务器的路由参数分配
Source:
  - avdEngine.js, line 770

##### Parameters:

Name | Type | Description
--- | --- | ---
`mcuClusterRouteParams` | Object | 参数值格式参考如：{ip_tag":"local","idc_code":"idc_code"} ip_tag：对应于 rtc_node_addr 中的tag标志，用于区分同一台服务器的多网卡地址，可以自定义，然后在参数中传入。 举例的话，比如 'local','internal','dianxin','liantong' idc_code：对应于 rtc_node 中的 idc_code标志，用于区分不同的服务器，唯一，可以自定义。 比如北京服务器设置为'beijing'，杭州的设置为'hangzhou'，然后在参数中传入，用于定位到服务器。

#### setMediaConnectType(mediaType,)

Description:
  - 设置媒体通道协议
Source:
  - avdEngine.js, line 693

##### Example

    avdEngine.setMediaConnectType(1);

##### Parameters:

Name | Type | Description
--- | --- | ---
`mediaType,` | int | 0 表示udp优先; 1表示 tcp优先，默认为0

#### setMediaConnectType(mediaType,)

Description:
  - 设置媒体通道协议
Source:
  - avdEngine.js, line 693

##### Example

    avdEngine.setMediaConnectType(1);

##### Parameters:

Name | Type | Description
--- | --- | ---
`mediaType,` | int | 0 表示udp优先; 1表示 tcp优先，默认为0

#### setNoiseSuppression(enable)

Description:
  - 设置降噪
Source:
  - avdEngine.js, line 2260

##### Parameters:

Name | Type | Description
--- | --- | ---
`enable` | Boolean |

#### setNoiseSuppression(enable)

Description:
  - 设置降噪
Source:
  - avdEngine.js, line 2260

##### Parameters:

Name | Type | Description
--- | --- | ---
`enable` | Boolean |

#### setRecordingMicrophone(microphoneId)

Description:
  - 设置成当前使用的麦克风
Source:
  - avdEngine.js, line 1454

##### Parameters:

Name | Type | Description
--- | --- | ---
`microphoneId` | String | 麦克风设备Id

#### setRecordingMicrophone(microphoneId)

Description:
  - 设置成当前使用的麦克风
Source:
  - avdEngine.js, line 1454

##### Parameters:

Name | Type | Description
--- | --- | ---
`microphoneId` | String | 麦克风设备Id

#### setReportLogger(appSign, appFunName)

Description:
  - 日志内容通过应用层提供的函数进行上报
Source:
  - avdEngine.js, line 513

##### Parameters:

Name | Type | Description
--- | --- | ---
`appSign` | string | 应用层设置的标识，用于区别某用户某一次加入会议所产生的所有日志
`appFunName` | Object | 应用层设置的方法函数，SDK调用该函数上报日志内容

#### setReportLogger(appSign, appFunName)

Description:
  - 日志内容通过应用层提供的函数进行上报
Source:
  - avdEngine.js, line 513

##### Parameters:

Name | Type | Description
--- | --- | ---
`appSign` | string | 应用层设置的标识，用于区别某用户某一次加入会议所产生的所有日志
`appFunName` | Object | 应用层设置的方法函数，SDK调用该函数上报日志内容

#### setRestFullProtocol(protocolStr)

Description:
  - 设置RestFull访问时应用的协议。 不设置默认取document.location.protocol
Source:
  - avdEngine.js, line 266

##### Parameters:

Name | Type | Description
--- | --- | ---
`protocolStr` | String | protocolStr RestFull访问应用时的协议，可填写如https:

#### setRestFullProtocol(protocolStr)

Description:
  - 设置RestFull访问时应用的协议。 不设置默认取document.location.protocol
Source:
  - avdEngine.js, line 266

##### Parameters:

Name | Type | Description
--- | --- | ---
`protocolStr` | String | protocolStr RestFull访问应用时的协议，可填写如https:

#### setRestfulRequestType(requestType,)

Description:
  - 设置RESTful API 请求类型
Source:
  - avdEngine.js, line 365

##### Example

    avdEngine.setRestfulRequestType(1);

##### Parameters:

Name | Type | Description
--- | --- | ---
`requestType,` | int | 0 表示GET; 1表示 POST，默认为0

#### setRestfulRequestType(requestType,)

Description:
  - 设置RESTful API 请求类型
Source:
  - avdEngine.js, line 365

##### Example

    avdEngine.setRestfulRequestType(1);

##### Parameters:

Name | Type | Description
--- | --- | ---
`requestType,` | int | 0 表示GET; 1表示 POST，默认为0

#### setSimulcastEnabled(isSimulcast)

Description:
  - 设置视频是否开启多流，默认值为false
Source:
  - avdEngine.js, line 293

##### Example

    avdEngine.setSimulcastEnabled(true);

##### Parameters:

Name | Type | Description
--- | --- | ---
`isSimulcast` | Boolean | isSimulcast false为不开启,true为开启

#### setSimulcastEnabled(isSimulcast)

Description:
  - 设置视频是否开启多流，默认值为false
Source:
  - avdEngine.js, line 293

##### Example

    avdEngine.setSimulcastEnabled(true);

##### Parameters:

Name | Type | Description
--- | --- | ---
`isSimulcast` | Boolean | isSimulcast false为不开启,true为开启

#### setTraceId(traceId)

Description:
  - 设置traceId，用于监控埋点实现
Source:
  - avdEngine.js, line 2350

##### Parameters:

Name | Type | Description
--- | --- | ---
`traceId` | String |

#### setTraceId(traceId)

Description:
  - 设置traceId，用于监控埋点实现
Source:
  - avdEngine.js, line 2350

##### Parameters:

Name | Type | Description
--- | --- | ---
`traceId` | String |

#### (async) setVideoCoding(videoCodingType)

Description:
  - 设置视频编码格式
Source:
  - avdEngine.js, line 534

##### Example

    avdEngine.setVideoCoding(VideoCodingType.VP8).then(function(){}).otherwise(function(error){});

##### Parameters:

Name | Type | Description
--- | --- | ---
`videoCodingType` | VideoCodingType | 视频编码格式(枚举型),默认值为videoCodingType.H264

#### (async) setVideoCoding(videoCodingType)

Description:
  - 设置视频编码格式
Source:
  - avdEngine.js, line 534

##### Example

    avdEngine.setVideoCoding(VideoCodingType.VP8).then(function(){}).otherwise(function(error){});

##### Parameters:

Name | Type | Description
--- | --- | ---
`videoCodingType` | VideoCodingType | 视频编码格式(枚举型),默认值为videoCodingType.H264