84 lines
2.2 KiB
JavaScript
84 lines
2.2 KiB
JavaScript
/**
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* 音频默认配置
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* TODO：MediaStreamTrack.applyConstraints()
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* TODO：播放音量（audio标签配置）、采集音量
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* 支持属性：navigator.mediaDevices.getSupportedConstraints()
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* https://developer.mozilla.org/en-US/docs/Web/API/MediaTrackSettings
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*/
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const defaultAudioConfig = {
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// 设备
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// deviceId : '',
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// 音量（废弃）：0.0~1.0
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// volume: 1.0,
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// 延迟时间（单位：秒）：500毫秒以内较好
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// latency: 0.4,
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// 采样位数：8|16|32
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sampleSize: { min: 8, ideal: 16, max: 32 },
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// 采样率：8000|16000|32000|48000
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sampleRate: { min: 8000, ideal: 32000, max: 48000 },
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// 声道数量：1|2
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channelCount: 1,
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// 是否开启自动增益：true|false
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autoGainControl: true,
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// 是否开启降噪功能：true|false
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noiseSuppression: true,
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// 是否开启回音消除：true|false
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echoCancellation: true,
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// 消除回音方式：system|browser
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echoCancellationType: "system",
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};
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/**
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* 视频默认配置
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*/
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const defaultVideoConfig = {
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// 设备
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// deviceId: '',
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// 宽度
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width: { min: 720, ideal: 1280, max: 4096 },
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// 高度
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height: { min: 480, ideal: 720, max: 2160 },
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// 帧率
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frameRate: { min: 15, ideal: 24, max: 45 },
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// 选摄像头：user|left|right|environment
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facingMode: "environment",
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};
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/**
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* VP9默认配置
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*/
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const defaultKsvcEncodings = [{ scalabilityMode: "S3T3_KEY" }];
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/**
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* simulcast默认配置
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*/
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const defaultSimulcastEncodings = [
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{ scaleResolutionDownBy: 4, maxBitrate: 500000, scalabilityMode: "S1T2" },
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{ scaleResolutionDownBy: 2, maxBitrate: 1000000, scalabilityMode: "S1T2" },
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{ scaleResolutionDownBy: 1, maxBitrate: 5000000, scalabilityMode: "S1T2" },
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];
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/**
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* RTCPeerConnection默认配置
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*/
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const defaultRTCPeerConnectionConfig = {
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// ICE代理的服务器
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iceServers: [],
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// 传输通道绑定策略：balanced|max-compat|max-bundle
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bundlePolicy: "balanced",
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// RTCP多路复用策略：require|negotiate
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rtcpMuxPolicy: "require",
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// ICE传输策略：all|relay
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iceTransportPolicy: "all",
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// ICE候选个数
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iceCandidatePoolSize: 8,
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};
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export {
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defaultAudioConfig,
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defaultVideoConfig,
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defaultKsvcEncodings,
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defaultSimulcastEncodings,
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defaultRTCPeerConnectionConfig,
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};
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