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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<title>Opus 编解码测试</title>
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<style>
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body {
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font-family: Arial, sans-serif;
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max-width: 800px;
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margin: 0 auto;
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padding: 20px;
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}
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.container {
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background-color: #f5f5f5;
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padding: 20px;
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border-radius: 8px;
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box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
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}
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button {
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padding: 8px 15px;
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margin-right: 10px;
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border: none;
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border-radius: 5px;
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background-color: #4285f4;
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color: white;
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cursor: pointer;
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transition: background-color 0.2s;
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}
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button:hover {
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background-color: #3367d6;
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}
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button:disabled {
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background-color: #cccccc;
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cursor: not-allowed;
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}
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#status {
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font-weight: bold;
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}
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#scriptStatus {
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position: fixed;
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top: 10px;
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left: 50%;
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transform: translateX(-50%);
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padding: 15px;
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border-radius: 5px;
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display: block;
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z-index: 100;
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transition: all 0.3s ease;
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}
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#scriptStatus.info {
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background-color: #e8f0fe;
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color: #4285f4;
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border-left: 4px solid #4285f4;
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}
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#scriptStatus.success {
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background-color: #e6f4ea;
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color: #0f9d58;
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border-left: 4px solid #0f9d58;
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}
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#scriptStatus.error {
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background-color: #fce8e6;
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color: #db4437;
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border-left: 4px solid #db4437;
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}
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#debugInfo {
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margin-top: 20px;
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border: 1px solid #ccc;
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border-radius: 5px;
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padding: 10px;
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font-family: monospace;
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font-size: 12px;
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max-height: 200px;
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overflow-y: auto;
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display: none;
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}
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#showDebug {
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margin-top: 10px;
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background-color: #f5f5f5;
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color: #444;
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font-size: 12px;
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}
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</style>
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</head>
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<body>
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<div class="container">
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<h2>Opus 编解码录音播放测试</h2>
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<div id="scriptStatus" class="info">正在加载Opus库...</div>
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<div>
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<button id="initAudio" style="background-color: #34a853;">初始化音频</button>
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<button id="testMic" style="background-color: #fbbc05;">测试麦克风</button>
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<p></p>
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<button id="start" disabled>开始录音</button>
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<button id="stop" disabled>停止录音</button>
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<button id="play" disabled>播放录音</button>
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<p>录音状态: <span id="status">待机，正在初始化...</span></p>
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<button id="showDebug">显示/隐藏调试信息</button>
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<div id="debugInfo"></div>
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<div id="audioMeter" style="margin-top: 10px; height: 20px; background-color: #eee; border-radius: 4px; overflow: hidden; display: none;">
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<div id="audioLevel" style="height: 100%; width: 0%; background-color: #4285f4; transition: width 0.1s;"></div>
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</div>
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</div>
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</div>
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<!-- Opus解码库 - 这个库会设置一个全局Module变量 -->
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<script>
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// 定义全局变量以跟踪库加载状态
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window.opusLoaded = false;
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window.startButton = document.getElementById("start");
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window.stopButton = document.getElementById("stop");
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window.playButton = document.getElementById("play");
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window.statusLabel = document.getElementById("status");
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window.debugInfo = document.getElementById("debugInfo");
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window.audioContextReady = false;
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window.testMicActive = false;
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// 显示/隐藏调试信息
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document.getElementById("showDebug").addEventListener("click", function() {
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if (debugInfo.style.display === "none" || !debugInfo.style.display) {
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debugInfo.style.display = "block";
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this.textContent = "隐藏调试信息";
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} else {
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debugInfo.style.display = "none";
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this.textContent = "显示调试信息";
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}
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});
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// 添加初始化音频按钮事件
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document.getElementById("initAudio").addEventListener("click", function() {
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initializeAudioSystem();
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});
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// 添加测试麦克风按钮事件
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document.getElementById("testMic").addEventListener("click", function() {
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if (window.testMicActive) {
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stopMicTest();
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} else {
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startMicTest();
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}
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});
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// 初始化音频系统
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function initializeAudioSystem() {
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try {
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log("初始化音频系统...");
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// 创建临时AudioContext来触发用户授权
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const tempContext = new (window.AudioContext || window.webkitAudioContext)({
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sampleRate: 16000,
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latencyHint: 'interactive'
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});
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// 创建振荡器并播放短促的声音
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const oscillator = tempContext.createOscillator();
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const gain = tempContext.createGain();
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gain.gain.value = 0.1; // 很小的音量
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oscillator.connect(gain);
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gain.connect(tempContext.destination);
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oscillator.frequency.value = 440; // A4
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oscillator.start();
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// 0.2秒后停止
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setTimeout(() => {
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oscillator.stop();
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// 关闭上下文
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tempContext.close().then(() => {
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log("音频系统初始化成功", "success");
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updateScriptStatus("音频系统已激活", "success");
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document.getElementById("initAudio").disabled = true;
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document.getElementById("initAudio").textContent = "音频已初始化";
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window.audioContextReady = true;
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// 如果Opus已加载，启用开始录音按钮
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if (window.opusLoaded) {
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startButton.disabled = false;
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}
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});
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}, 200);
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} catch (err) {
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log("初始化音频系统失败: " + err.message, "error");
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updateScriptStatus("初始化音频失败: " + err.message, "error");
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}
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}
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// 测试麦克风
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function startMicTest() {
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const audioMeter = document.getElementById("audioMeter");
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const audioLevel = document.getElementById("audioLevel");
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const testMicBtn = document.getElementById("testMic");
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if (!navigator.mediaDevices || !navigator.mediaDevices.getUserMedia) {
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log("浏览器不支持麦克风访问", "error");
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return;
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}
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log("开始麦克风测试...");
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audioMeter.style.display = "block";
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testMicBtn.textContent = "停止测试";
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testMicBtn.style.backgroundColor = "#ea4335";
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window.testMicActive = true;
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// 创建音频上下文
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const testContext = new (window.AudioContext || window.webkitAudioContext)();
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window.testContext = testContext;
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// 获取麦克风权限
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navigator.mediaDevices.getUserMedia({
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audio: {
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echoCancellation: true,
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noiseSuppression: true,
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autoGainControl: true
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}
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})
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.then(stream => {
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log("已获取麦克风访问权限", "success");
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// 保存流以便稍后关闭
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window.testStream = stream;
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// 创建音频分析器
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const source = testContext.createMediaStreamSource(stream);
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const analyser = testContext.createAnalyser();
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analyser.fftSize = 256;
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source.connect(analyser);
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// 创建音量显示更新函数
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const bufferLength = analyser.frequencyBinCount;
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const dataArray = new Uint8Array(bufferLength);
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function updateMeter() {
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if (!window.testMicActive) return;
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analyser.getByteFrequencyData(dataArray);
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// 计算音量级别 (0-100)
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let sum = 0;
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for (let i = 0; i < bufferLength; i++) {
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sum += dataArray[i];
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}
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const average = sum / bufferLength;
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const level = Math.min(100, Math.max(0, average * 2));
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// 更新音量计
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audioLevel.style.width = level + "%";
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// 如果有声音，记录日志
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if (level > 10) {
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log(`检测到声音: ${level.toFixed(1)}%`);
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}
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// 循环更新
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window.testMicAnimationFrame = requestAnimationFrame(updateMeter);
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}
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// 开始更新
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updateMeter();
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})
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.catch(err => {
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log("麦克风测试失败: " + err.message, "error");
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window.testMicActive = false;
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testMicBtn.textContent = "测试麦克风";
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testMicBtn.style.backgroundColor = "#fbbc05";
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audioMeter.style.display = "none";
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});
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}
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// 停止麦克风测试
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function stopMicTest() {
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const audioMeter = document.getElementById("audioMeter");
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const testMicBtn = document.getElementById("testMic");
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log("停止麦克风测试");
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window.testMicActive = false;
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testMicBtn.textContent = "测试麦克风";
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testMicBtn.style.backgroundColor = "#fbbc05";
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// 停止分析器动画
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if (window.testMicAnimationFrame) {
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cancelAnimationFrame(window.testMicAnimationFrame);
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}
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// 停止麦克风流
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if (window.testStream) {
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window.testStream.getTracks().forEach(track => track.stop());
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}
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// 关闭测试上下文
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if (window.testContext) {
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window.testContext.close();
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}
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// 隐藏音量计
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audioMeter.style.display = "none";
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}
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// 初始化AudioContext
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function initAudioContext() {
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try {
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window.AudioContext = window.AudioContext || window.webkitAudioContext;
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if (!window.AudioContext) {
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throw new Error("浏览器不支持AudioContext");
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}
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// 我们在app.js中会创建AudioContext，这里只检查兼容性
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log("AudioContext API 可用");
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return true;
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} catch (err) {
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log("AudioContext初始化失败: " + err.message, "error");
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updateScriptStatus("AudioContext初始化失败，录音功能不可用", "error");
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return false;
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}
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}
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// 检查麦克风权限
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function checkMicrophonePermission() {
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if (!navigator.mediaDevices || !navigator.mediaDevices.getUserMedia) {
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log("浏览器不支持getUserMedia API", "error");
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updateScriptStatus("浏览器不支持录音功能", "error");
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return false;
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}
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log("getUserMedia API 可用");
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return true;
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}
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// 添加调试日志
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function log(message, type = "info") {
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console.log(message);
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const time = new Date().toLocaleTimeString();
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const entry = document.createElement("div");
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entry.textContent = `[${time}] ${message}`;
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if (type === "error") {
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entry.style.color = "#db4437";
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} else if (type === "success") {
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entry.style.color = "#0f9d58";
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}
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debugInfo.appendChild(entry);
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debugInfo.scrollTop = debugInfo.scrollHeight;
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}
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// 更新脚本状态显示
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function updateScriptStatus(message, type) {
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const statusElement = document.getElementById('scriptStatus');
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if (statusElement) {
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statusElement.textContent = message;
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statusElement.className = type;
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statusElement.style.display = 'block';
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}
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log(message, type);
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}
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// 检查Opus库是否已加载
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function checkOpusLoaded() {
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try {
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// 检查Module是否存在（本地库导出的全局变量）
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if (typeof Module === 'undefined') {
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log("Module对象不存在", "error");
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throw new Error('Opus库未加载，Module对象不存在');
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}
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// 记录Module对象结构以便调试
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log("Module对象结构: " + Object.keys(Module).join(", "));
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// 尝试使用全局Module函数
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if (typeof Module._opus_decoder_get_size === 'function') {
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window.ModuleInstance = Module;
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log('Opus库加载成功（使用全局Module）', "success");
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updateScriptStatus('Opus库加载成功', 'success');
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// 启用开始录音按钮
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startButton.disabled = false;
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statusLabel.textContent = "待机";
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// 3秒后隐藏状态
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setTimeout(() => {
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const statusElement = document.getElementById('scriptStatus');
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if (statusElement) statusElement.style.display = 'none';
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}, 3000);
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window.opusLoaded = true;
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return true;
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}
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// 尝试使用Module.instance
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if (typeof Module.instance !== 'undefined' && typeof Module.instance._opus_decoder_get_size === 'function') {
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window.ModuleInstance = Module.instance;
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log('Opus库加载成功（使用Module.instance）', "success");
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updateScriptStatus('Opus库加载成功', 'success');
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// 启用开始录音按钮
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startButton.disabled = false;
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statusLabel.textContent = "待机";
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// 3秒后隐藏状态
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setTimeout(() => {
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const statusElement = document.getElementById('scriptStatus');
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if (statusElement) statusElement.style.display = 'none';
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}, 3000);
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window.opusLoaded = true;
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return true;
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}
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// 检查是否有其他导出方式
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log("Module上可用方法: " + Object.getOwnPropertyNames(Module).filter(prop => typeof Module[prop] === 'function').join(", "));
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if (typeof Module.onRuntimeInitialized === 'function' || typeof Module.onRuntimeInitialized === 'undefined') {
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log("Module.onRuntimeInitialized 尚未执行，等待模块初始化完成...");
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// Module可能未完成初始化，注册回调
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Module.onRuntimeInitialized = function() {
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log("Opus库运行时初始化完成，重新检查");
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checkOpusLoaded();
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};
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return false;
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}
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throw new Error('Opus解码函数未找到，可能Module结构不正确');
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} catch (err) {
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log(`Opus库加载失败: ${err.message}`, "error");
|
|
|
updateScriptStatus(`Opus库加载失败: ${err.message}`, 'error');
|
|
|
statusLabel.textContent = "错误：Opus库加载失败";
|
|
|
return false;
|
|
|
}
|
|
|
}
|
|
|
|
|
|
// 页面加载完成后检查浏览器能力和Opus库
|
|
|
window.addEventListener('load', function() {
|
|
|
log("页面加载完成，开始初始化...");
|
|
|
updateScriptStatus('正在初始化录音环境...', 'info');
|
|
|
|
|
|
// 检查浏览器能力
|
|
|
const audioContextSupported = initAudioContext();
|
|
|
const microphoneSupported = checkMicrophonePermission();
|
|
|
|
|
|
if (!audioContextSupported || !microphoneSupported) {
|
|
|
log("浏览器不支持必要API，无法进行录音", "error");
|
|
|
updateScriptStatus('浏览器不支持录音功能', 'error');
|
|
|
return;
|
|
|
}
|
|
|
|
|
|
log("检查环境完成，开始加载Opus库");
|
|
|
updateScriptStatus('正在加载Opus库...', 'info');
|
|
|
|
|
|
// 延迟一小段时间再检查，确保库有时间加载
|
|
|
setTimeout(function checkAndRetry() {
|
|
|
if (!checkOpusLoaded()) {
|
|
|
// 如果加载失败，5秒后重试
|
|
|
log("Opus库加载失败，5秒后重试...");
|
|
|
updateScriptStatus('Opus库加载失败，正在重试...', 'error');
|
|
|
setTimeout(checkAndRetry, 5000);
|
|
|
}
|
|
|
}, 1000);
|
|
|
});
|
|
|
|
|
|
// 防止按钮误操作
|
|
|
document.getElementById("stop").disabled = true;
|
|
|
document.getElementById("play").disabled = true;
|
|
|
</script>
|
|
|
<script src="./../libopus.js"></script>
|
|
|
<script src="app.js"></script>
|
|
|
</body>
|
|
|
</html>
|
