【m】视频状态检测

This commit is contained in:
zhangzheng
2026-03-06 13:59:38 +08:00
parent 703da374b4
commit f416db6375

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@@ -99,6 +99,9 @@ class CallStateManager {
// 发送媒体状态到服务器
this.emitMediaStateChange();
// 启动本地音频活动检测
this.startLocalActivityDetection();
} catch (error) {
console.error('Error getting local stream:', error);
// 如果获取视频失败,保持视频关闭状态
@@ -232,10 +235,15 @@ class CallStateManager {
// 通知UI远程流已更新
this.notify({ type: 'REMOTE_STREAM_OBTAINED', stream: this.state.remoteStream });
// 如果是音频轨道,启动音频活动检测
// 如果是音频轨道,启动远程音频活动检测
if (data.track.kind === 'audio') {
this.startRemoteActivityDetection();
}
} else if (direction == "sendonly") {
// 本地发送轨道,启动本地音频活动检测
if (data.track.kind === 'audio') {
this.startLocalActivityDetection();
}
}
};
@@ -245,6 +253,9 @@ class CallStateManager {
// 启动网络质量检测
this.startNetworkQualityDetection();
// 启动本地音频活动检测
this.startLocalActivityDetection();
// 启动远端音频活动检测
this.startRemoteActivityDetection();
//模拟远端活动 (开发测试用)
@@ -468,7 +479,7 @@ class CallStateManager {
console.error('Error detecting network quality:', error);
}
}
// 真实音频活动检测
// 真实音频活动检测 - 远端
startRemoteActivityDetection() {
// 检查是否有远端音频流
if (!this.state.remoteStream) {
@@ -553,6 +564,98 @@ class CallStateManager {
console.error('Error starting remote activity detection:', error);
}
}
// 真实音频活动检测 - 本地
startLocalActivityDetection() {
// 检查是否有本地音频流
if (!this.state.localStream) {
return;
}
// 获取音频轨道
const audioTracks = this.state.localStream.getAudioTracks();
if (audioTracks.length === 0) {
return;
}
try {
// 创建音频上下文
const audioContext = new (window.AudioContext || window.webkitAudioContext)();
// 创建媒体流源
const source = audioContext.createMediaStreamSource(this.state.localStream);
// 创建音频分析器
const analyser = audioContext.createAnalyser();
analyser.fftSize = 256;
// 连接音频节点
source.connect(analyser);
// 创建数据缓冲区
const dataArray = new Uint8Array(analyser.frequencyBinCount);
// 检测参数
const threshold = 15; // 音频电平阈值
const debounceTime = 500; // 防抖时间
let isSpeaking = false;
let lastActivityTime = 0;
// 音频活动检测循环
const detectActivity = () => {
if (!this.state.localStream || !this.renderstreaming) {
return;
}
// 获取时域数据
analyser.getByteTimeDomainData(dataArray);
// 计算音频电平
let sum = 0;
for (let i = 0; i < dataArray.length; i++) {
// 转换为振幅 (0-255 → -128-127)
const amplitude = dataArray[i] - 128;
sum += amplitude * amplitude;
}
const rms = Math.sqrt(sum / dataArray.length);
const level = rms / 128; // 归一化到 0-1
// 检测说话状态
const currentTime = Date.now();
if (level > threshold / 100) {
// 检测到说话
lastActivityTime = currentTime;
if (!isSpeaking) {
isSpeaking = true;
this.state.session.localUser.mediaState.isSpeaking = true;
this.notify({ type: 'LOCAL_MEDIA_CHANGE', mediaType: 'isSpeaking', value: true });
// 发送媒体状态到服务器
this.emitMediaStateChange();
}
} else if (isSpeaking && currentTime - lastActivityTime > debounceTime) {
// 停止说话
isSpeaking = false;
this.state.session.localUser.mediaState.isSpeaking = false;
this.notify({ type: 'LOCAL_MEDIA_CHANGE', mediaType: 'isSpeaking', value: false });
// 发送媒体状态到服务器
this.emitMediaStateChange();
}
// 继续检测
if (this.state.session.status === 'ongoing') {
requestAnimationFrame(detectActivity);
}
};
// 开始检测
detectActivity();
console.log('Local activity detection started');
} catch (error) {
console.error('Error starting local activity detection:', error);
}
}
// 启动网络质量检测
startNetworkQualityDetection() {
// 每3秒检测一次网络质量