feat: provide on-demand H264 compatible browser previews

web/app.js

@@ -62,12 +62,12 @@ function renderLive() {
     const src = `/media/live/cam_${c.id}_${quality}/index.m3u8`;
     const error = text => {const el=panel.querySelector('.video-error');el.textContent=text;el.hidden=false;};
     video.onplaying=()=>{panel.querySelector('.video-empty').hidden=true;panel.querySelector('.video-error').hidden=true;};
-    video.onerror=()=>error('浏览器无法解码此码流。可尝试切换清晰度，或将摄像头设为 H.264。');
+    video.onerror=()=>error('浏览器无法解码此码流，请在清晰度中选择“兼容 · 流畅画面”。');
     if (window.Hls?.isSupported()) {
-      const hls = new Hls({maxBufferLength:10,backBufferLength:5,liveSyncDurationCount:3,manifestLoadingMaxRetry:2,levelLoadingMaxRetry:2});
+      const hls = new Hls({maxBufferLength:10,backBufferLength:5,liveSyncDurationCount:3,manifestLoadingTimeOut:60000,levelLoadingTimeOut:60000,manifestLoadingMaxRetry:2,levelLoadingMaxRetry:2});
       hls.on(Hls.Events.ERROR,(_,data)=>{if(data.fatal){
         const codecError = /codec|bufferAddCodec|manifestIncompatible/i.test(data.details || '');
-        error(codecError ? '浏览器不支持当前视频编码，需要服务器提供兼容码流。' : '画面加载失败（'+(data.details || data.type)+'）。点击刷新状态可重试。');
+        error(codecError ? '浏览器不支持当前视频编码，请选择“兼容 · 流畅画面”。' : '画面加载失败（'+(data.details || data.type)+'）。点击刷新状态可重试。');
         console.warn('Video playback failed', c.id, data.type, data.details);
         hls.destroy();
       }});

web/index.html

@@ -24,7 +24,7 @@
     <div id="banner" class="banner" hidden></div>
     <section class="metrics"><div><span>摄像头</span><strong id="metric-all">—</strong></div><div><span>已接通码流</span><strong id="metric-ready">—</strong></div><div><span>录像占用</span><strong id="metric-used">—</strong></div><div><span>空间档案</span><strong id="metric-sites">—</strong></div></section>
     <div class="filter-row"><label>空间范围 <select id="site-filter"><option value="">全部空间</option></select></label><span id="filter-caption">家庭与公司，分别管理</span><button id="refresh" class="quiet">↻ 刷新状态</button></div>
-    <section id="page-live" class="page"><div class="section-head"><h2>现场画面 <small>LIVE VIEW</small></h2><div><label>清晰度 <select id="quality"><option value="sub">流畅 · 子码流</option><option value="main">清晰 · 主码流</option></select></label><button data-action="new-camera">＋ 添加镜头通道</button></div></div><div id="live-grid" class="live-grid"></div></section>
+    <section id="page-live" class="page"><div class="section-head"><h2>现场画面 <small>LIVE VIEW</small></h2><div><label>清晰度 <select id="quality"><option value="compat">兼容 · 流畅画面</option><option value="sub">原始 · 子码流</option><option value="main">清晰 · 主码流</option></select></label><button data-action="new-camera">＋ 添加镜头通道</button></div></div><div id="live-grid" class="live-grid"></div></section>
     <section id="page-playback" class="page" hidden>
       <div class="section-head"><h2>回到那一刻 <small>PLAYBACK</small></h2></div>
       <div class="panel playback-controls"><label>摄像头<select id="play-camera"></select></label><label>录像来源<select id="archive-source"><option value="recorder">录像机原有录像</option><option value="local">小电脑本机录像</option></select></label><label>日期<input id="play-date" type="date"></label><button id="query-recordings">查找录像</button><span id="play-info">选择日期，查看实际录像时段</span></div>
@@ -36,7 +36,7 @@
     <section id="page-objects" class="page" hidden><div class="section-head"><h2>摄像头对象 <small>CAMERA ASSETS</small></h2><button data-action="new-asset">＋ 新建摄像头对象</button></div><p class="description">一台实体摄像头对应一个对象，双镜头在对象下建立两个镜头通道；每个镜头分别有主码流和子码流。</p><div id="asset-list" class="site-grid"></div></section>
     <section id="page-recorders" class="page" hidden><div class="section-head"><h2>录像机 <small>RECORDERS</small></h2><button data-action="new-recorder">＋ 添加录像机</button></div><p class="description">统一保存录像机地址与账号，镜头通道关联录像机。实时取流使用 RTSP；读取录像机已有历史录像，需要该型号的回放接口适配。</p><div id="recorder-list" class="site-grid"></div></section>
     <section id="page-sites" class="page" hidden><div class="section-head"><h2>空间档案 <small>PLACES</small></h2><button data-action="new-site">＋ 新建空间</button></div><p class="description">为家庭、公司或其他场所建立地址档案，再关联摄像头。地区、小区、楼栋和门牌都是独立属性。</p><div id="site-list" class="site-grid"></div></section>
-    <section id="page-storage" class="page" hidden><div class="section-head"><h2>录像与存储 <small>STORAGE</small></h2></div><div class="storage-grid"><form id="storage-form" class="panel"><h3>录像保留策略</h3><label>保留天数<input name="retentionDays" type="number" min="1" max="365" required></label><label>录像容量上限（GB）<input name="maxGB" type="number" min="5" max="100000" required></label><label>磁盘预留空间（GB）<input name="reserveGB" type="number" min="2" max="1000" required></label><p class="description">超过保留天数的录像会自动删除。达到容量上限或预留空间不足时暂停录像；调整策略后自动恢复。容量每 20 秒检查一次，可能有少量超出。</p><button type="submit">保存策略</button><span class="form-error"></span></form><div class="panel"><h3>运行状态</h3><dl id="storage-status"></dl><p class="description">开启摄像头的“持续录像”后，服务会保存主码流。预览优先使用子码流。画面由摄像头编码输出，浏览器兼容性取决于其编码，建议使用 H.264。</p><h3>最近操作</h3><div id="audit-list"></div></div></div></section>
+    <section id="page-storage" class="page" hidden><div class="section-head"><h2>录像与存储 <small>STORAGE</small></h2></div><div class="storage-grid"><form id="storage-form" class="panel"><h3>录像保留策略</h3><label>保留天数<input name="retentionDays" type="number" min="1" max="365" required></label><label>录像容量上限（GB）<input name="maxGB" type="number" min="5" max="100000" required></label><label>磁盘预留空间（GB）<input name="reserveGB" type="number" min="2" max="1000" required></label><p class="description">超过保留天数的录像会自动删除。达到容量上限或预留空间不足时暂停录像；调整策略后自动恢复。容量每 20 秒检查一次，可能有少量超出。</p><button type="submit">保存策略</button><span class="form-error"></span></form><div class="panel"><h3>运行状态</h3><dl id="storage-status"></dl><p class="description">开启摄像头的“持续录像”后，服务会保存主码流。预览默认使用 H.264 兼容画面（最高 768×432、10 帧/秒）。原始码流与本机录像保留设备编码。</p><h3>最近操作</h3><div id="audit-list"></div></div></div></section>
     <footer><span>赵府智家 · 视觉系统</span><span id="version">独立部署 / 数据自有</span></footer>
   </main>
   <dialog id="auth-dialog"><form id="auth-form"><span class="eyebrow">WELCOME HOME</span><h2 id="auth-title">欢迎回来</h2><p id="auth-note">输入管理密码，进入视觉工作空间。</p><label id="setup-code-label" hidden>初始化码<input name="code" autocomplete="off"></label><label>管理员密码<input name="password" type="password" minlength="10" maxlength="128" required autocomplete="current-password"></label><p class="form-error"></p><button type="submit" class="wide">进入系统</button></form></dialog>