新增功能
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<!DOCTYPE html>
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<html lang="zh-CN">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>本地录制测试工具</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: 1200px;
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margin: 20px auto;
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padding: 20px;
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}
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.section {
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margin: 20px 0;
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padding: 15px;
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border: 1px solid #ddd;
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border-radius: 5px;
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}
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.section h2 {
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margin-top: 0;
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}
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button {
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padding: 10px 20px;
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margin: 5px;
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cursor: pointer;
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background: #409eff;
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color: white;
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border: none;
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border-radius: 4px;
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}
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button:hover {
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background: #66b1ff;
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}
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button:disabled {
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background: #ccc;
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cursor: not-allowed;
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}
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#videoContainer {
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display: flex;
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gap: 10px;
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margin: 10px 0;
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}
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video {
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width: 320px;
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height: 240px;
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background: #000;
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border: 2px solid #409eff;
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}
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#log {
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background: #f5f5f5;
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padding: 10px;
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height: 300px;
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overflow-y: auto;
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font-family: monospace;
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font-size: 12px;
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white-space: pre-wrap;
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}
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.log-entry {
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margin: 2px 0;
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}
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.log-info { color: #409eff; }
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.log-success { color: #67c23a; }
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.log-warning { color: #e6a23c; }
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.log-error { color: #f56c6c; }
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.status {
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padding: 5px 10px;
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border-radius: 3px;
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display: inline-block;
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margin: 5px 0;
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}
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.status.idle { background: #e4e7ed; }
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.status.recording { background: #f56c6c; color: white; }
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.status.stopped { background: #67c23a; color: white; }
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</style>
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</head>
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<body>
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<h1>本地录制测试工具</h1>
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<div class="section">
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<h2>1. 浏览器支持检测</h2>
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<div id="browserSupport"></div>
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</div>
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<div class="section">
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<h2>2. 视频流测试</h2>
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<button id="startCamera">启动摄像头</button>
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<button id="stopCamera" disabled>停止摄像头</button>
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<div id="videoContainer"></div>
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</div>
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<div class="section">
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<h2>3. 录制测试</h2>
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<div>
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状态: <span class="status idle" id="recordStatus">未开始</span>
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</div>
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<button id="startRecord" disabled>开始录制</button>
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<button id="stopRecord" disabled>停止录制</button>
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<button id="playRecord" disabled>播放录制</button>
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<button id="downloadRecord" disabled>下载录制</button>
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<div id="recordInfo"></div>
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</div>
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<div class="section">
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<h2>4. 日志</h2>
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<button id="clearLog">清空日志</button>
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<div id="log"></div>
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</div>
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<script>
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const log = (message, type = 'info') => {
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const logDiv = document.getElementById('log');
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const entry = document.createElement('div');
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entry.className = `log-entry log-${type}`;
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entry.textContent = `[${new Date().toLocaleTimeString()}] ${message}`;
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logDiv.appendChild(entry);
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logDiv.scrollTop = logDiv.scrollHeight;
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console.log(message);
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};
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// 1. 检测浏览器支持
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const checkBrowserSupport = () => {
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const support = document.getElementById('browserSupport');
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const checks = [];
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// MediaRecorder
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if (typeof MediaRecorder !== 'undefined') {
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checks.push('✅ MediaRecorder API 支持');
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// MIME 类型
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const mimes = [
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'video/webm;codecs=vp9,opus',
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'video/webm;codecs=vp8,opus',
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'video/webm;codecs=vp9',
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'video/webm'
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];
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mimes.forEach(mime => {
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const supported = MediaRecorder.isTypeSupported(mime);
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checks.push(`${supported ? '✅' : '❌'} ${mime}`);
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if (supported) {
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log(`支持 MIME: ${mime}`, 'success');
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}
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});
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} else {
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checks.push('❌ MediaRecorder API 不支持');
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log('MediaRecorder API 不支持', 'error');
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}
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// getUserMedia
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if (navigator.mediaDevices && navigator.mediaDevices.getUserMedia) {
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checks.push('✅ getUserMedia 支持');
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} else {
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checks.push('❌ getUserMedia 不支持');
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log('getUserMedia 不支持', 'error');
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}
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// AudioContext
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const AudioCtx = window.AudioContext || window.webkitAudioContext;
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if (AudioCtx) {
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checks.push('✅ AudioContext 支持');
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} else {
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checks.push('❌ AudioContext 不支持');
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log('AudioContext 不支持', 'warning');
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}
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support.innerHTML = checks.join('<br>');
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};
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// 2. 视频流
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let localStream = null;
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const videoContainer = document.getElementById('videoContainer');
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document.getElementById('startCamera').onclick = async () => {
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try {
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log('请求摄像头权限...', 'info');
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localStream = await navigator.mediaDevices.getUserMedia({
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video: true,
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audio: true
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});
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const video = document.createElement('video');
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video.srcObject = localStream;
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video.autoplay = true;
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video.muted = true;
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videoContainer.appendChild(video);
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log(`摄像头启动成功，轨道数: 视频=${localStream.getVideoTracks().length}, 音频=${localStream.getAudioTracks().length}`, 'success');
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document.getElementById('startCamera').disabled = true;
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document.getElementById('stopCamera').disabled = false;
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document.getElementById('startRecord').disabled = false;
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} catch (err) {
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log(`摄像头启动失败: ${err.message}`, 'error');
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}
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};
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document.getElementById('stopCamera').onclick = () => {
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if (localStream) {
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localStream.getTracks().forEach(track => track.stop());
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videoContainer.innerHTML = '';
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localStream = null;
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log('摄像头已停止', 'info');
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document.getElementById('startCamera').disabled = false;
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document.getElementById('stopCamera').disabled = true;
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document.getElementById('startRecord').disabled = true;
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}
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};
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// 3. 录制
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let mediaRecorder = null;
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let recordedChunks = [];
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let recordedBlob = null;
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const updateRecordStatus = (status, text) => {
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const statusEl = document.getElementById('recordStatus');
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statusEl.className = `status ${status}`;
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statusEl.textContent = text;
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};
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document.getElementById('startRecord').onclick = () => {
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if (!localStream) {
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log('请先启动摄像头', 'warning');
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return;
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}
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try {
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recordedChunks = [];
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recordedBlob = null;
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// 尝试不同的 MIME 类型
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const mimes = [
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'video/webm;codecs=vp9,opus',
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'video/webm;codecs=vp8,opus',
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'video/webm;codecs=vp9',
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'video/webm'
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];
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let selectedMime = '';
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for (const mime of mimes) {
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if (MediaRecorder.isTypeSupported(mime)) {
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selectedMime = mime;
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break;
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}
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}
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if (!selectedMime) {
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log('没有找到支持的 MIME 类型', 'error');
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return;
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}
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log(`使用 MIME 类型: ${selectedMime}`, 'info');
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mediaRecorder = new MediaRecorder(localStream, { mimeType: selectedMime });
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mediaRecorder.ondataavailable = (e) => {
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if (e.data && e.data.size > 0) {
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recordedChunks.push(e.data);
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log(`收到数据块: ${e.data.size} bytes (总计: ${recordedChunks.length} 块)`, 'info');
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}
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};
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mediaRecorder.onstart = () => {
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log('录制已开始', 'success');
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updateRecordStatus('recording', '录制中');
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};
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mediaRecorder.onstop = () => {
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log(`录制已停止，共 ${recordedChunks.length} 个数据块`, 'success');
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updateRecordStatus('stopped', '已停止');
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if (recordedChunks.length > 0) {
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recordedBlob = new Blob(recordedChunks, { type: selectedMime });
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log(`生成 Blob: ${recordedBlob.size} bytes`, 'success');
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document.getElementById('playRecord').disabled = false;
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document.getElementById('downloadRecord').disabled = false;
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const info = document.getElementById('recordInfo');
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info.innerHTML = `
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<p>录制完成！</p>
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<p>大小: ${(recordedBlob.size / 1024 / 1024).toFixed(2)} MB</p>
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<p>类型: ${recordedBlob.type}</p>
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<p>数据块: ${recordedChunks.length}</p>
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`;
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} else {
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log('警告: 没有收到任何数据块！', 'error');
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}
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};
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mediaRecorder.onerror = (e) => {
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log(`录制错误: ${e.error}`, 'error');
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};
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mediaRecorder.start(250); // 每 250ms 一个数据块
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log('MediaRecorder.start(250) 调用成功', 'info');
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document.getElementById('startRecord').disabled = true;
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document.getElementById('stopRecord').disabled = false;
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} catch (err) {
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log(`录制启动失败: ${err.message}`, 'error');
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}
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};
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document.getElementById('stopRecord').onclick = () => {
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if (mediaRecorder && mediaRecorder.state !== 'inactive') {
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log('请求停止录制...', 'info');
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// 模拟实际代码的停止流程
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if (mediaRecorder.requestData) {
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mediaRecorder.requestData();
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log('调用 requestData()', 'info');
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}
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setTimeout(() => {
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log(`延迟后数据块数: ${recordedChunks.length}`, 'info');
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mediaRecorder.stop();
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}, 300);
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document.getElementById('startRecord').disabled = false;
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document.getElementById('stopRecord').disabled = true;
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}
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};
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document.getElementById('playRecord').onclick = () => {
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if (recordedBlob) {
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const url = URL.createObjectURL(recordedBlob);
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const video = document.createElement('video');
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video.src = url;
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video.controls = true;
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video.style.width = '640px';
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const info = document.getElementById('recordInfo');
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info.innerHTML = '';
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info.appendChild(video);
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log('播放录制视频', 'info');
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}
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};
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document.getElementById('downloadRecord').onclick = () => {
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if (recordedBlob) {
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const url = URL.createObjectURL(recordedBlob);
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const a = document.createElement('a');
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a.href = url;
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a.download = `recording-${Date.now()}.webm`;
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a.click();
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URL.revokeObjectURL(url);
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log('下载录制文件', 'success');
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}
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};
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document.getElementById('clearLog').onclick = () => {
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document.getElementById('log').innerHTML = '';
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};
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// 初始化
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checkBrowserSupport();
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log('测试工具已加载', 'success');
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</script>
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</body>
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</html>
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