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feat(local): 支持上传并播放本地视频文件，只保留音轨 (#149)
本地上传此前只接受音频。想放一段本地 mp4/mov/avi 里的音乐，四道关卡 挡着（前两道在服务端，后两道在浏览器端）： 1. src/music/local.ts 的 AUDIO_EXTENSIONS 只列了 12 种音频后缀； 2. src/web/api/music.ts 里 express.raw 的 type 只匹配 audio/*、 video/webm、application/octet-stream —— 浏览器给 .mp4 打的 Content-Type 是 video/mp4，请求体压根不会被解析，处理函数看到 req.body === undefined，回 400「raw audio body is required」； 3. Search.vue 的 accept 属性让文件选择框把视频文件置灰； 4. isAudioFile() 把拖进来的视频文件静默丢掉。 ffmpeg 层不是瓶颈：s16le 输出格式不接受视频，ffmpeg 的自动选流本来 就只挑音轨。实测 mp4/mov/avi/mkv/flv/wmv/ts/m4v/mpg 九种容器用现有 参数全部正常出声，多音轨、带字幕、带 timecode 的也一样，所以 buildFfmpegArgs 一个字没动。 ## 改动 - **打通四道关卡**：新增 VIDEO_EXTENSIONS（mp4/mov/avi/mkv/flv/wmv/ m4v/mpg/mpeg/3gp/ts/m2ts/ogv），express.raw 收 video/*，前端 accept 与过滤函数同步放宽。 - **上传时抽取音轨**（extractAudioTrack）：视频落盘后用 `-vn -sn -dn -map 0:a:0 -c:a copy` 把音轨原样搬进 Matroska 音频容器 （.mka）再删掉原视频。`-c:a copy` 不重编码，无损、快，且 Matroska 几乎收所有音频编码，不用维护「编码→后缀」对照表。实测 720p 素材 落盘体积降到原文件的 14%，这对 5 GiB 的上传目录配额很关键——否则 十来个视频就把配额占满了。抽取失败（冷门编码、超时）则保留原容器 继续播，只是占地方，绝不会因此上传失败。 - **拒绝没有音轨的视频**：上传时探测，直接回「这个视频里没有音轨， 无法播放」，而不是等到播放时静默跳过。只在 ffmpeg 确实打开了容器 （打印了 `Input #0,`）时才拒绝——认不出的字节一律放行，截断的 mp3 一直是这个行为，不能因为这次改动开始被拒。 - **上限从 200mb 提到 500mb**，并把超限响应从 Express 默认的 HTML 错误页（带堆栈和服务器绝对路径）换成和本路由一致的 JSON；前端也加 了同样的预检，不再传完几百兆才被拒。 - **上传进度**：视频比音频大得多，原来那句静止的「正在上传 N 个文件」 看着像卡死，现在按文件显示百分比，传完切到「服务端处理中」。 ## 验证 - 全量 `npx vitest run`：136 个文件 / 2070 项，新增 24 项。 - 新增测试用 ffmpeg 现造真实容器跑端到端：mp4 上传后时长正确、原 容器已删、剩下的 .mka 能被播放链路解码出 PCM；avi/mkv/flv 同样； 无音轨视频被拒且不留残留文件；纯音频上传字节数不变、不被重封装。 - 变异测试（逐个改回旧实现，确认新测试真的会红）：后缀白名单 4 项失败、 express.raw 的 type 5 项失败、抽取音轨 2 项失败、无音轨拒绝 2 项失败。 - `npx tsc --noEmit` 与 `npx vue-tsc --noEmit` 均 exit 0。 Reported-by: @LadenceE Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
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@@ -28,18 +28,18 @@
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>
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<Icon icon="mdi:tray-arrow-up" class="upload-icon" />
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<div class="upload-copy">
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<div class="upload-title">拖拽本地音频到这里上传</div>
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<div class="upload-subtitle">支持 mp3、flac、wav、m4a、ogg、opus、aac、webm 等格式，上传后可直接播放或加入队列</div>
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<div class="upload-title">拖拽本地音频 / 视频到这里上传</div>
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<div class="upload-subtitle">音频支持 mp3、flac、wav、m4a、ogg、opus、aac、webm 等，视频支持 mp4、mov、avi、mkv、flv、wmv 等（只取其中的音轨播放）；上传后可直接播放或加入队列</div>
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</div>
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<button class="upload-btn" :disabled="uploading" @click="fileInput?.click()">
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{{ uploading ? '上传中...' : '选择音频' }}
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{{ uploading ? '上传中...' : '选择文件' }}
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</button>
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<input
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ref="fileInput"
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class="file-input"
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type="file"
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multiple
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accept="audio/*,.mp3,.flac,.wav,.m4a,.aac,.ogg,.opus,.webm,.wma,.alac,.aiff,.ape"
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accept="audio/*,video/*,.mp3,.flac,.wav,.m4a,.aac,.ogg,.opus,.webm,.wma,.alac,.aiff,.ape,.mp4,.mov,.avi,.mkv,.flv,.wmv,.m4v,.mpg,.mpeg,.3gp,.ts,.m2ts,.ogv"
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@change="handleFileSelect"
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/>
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</div>
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@@ -404,8 +404,17 @@ async function doSearch() {
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}
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function isAudioFile(file: File): boolean {
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return file.type.startsWith('audio/') || /\.(mp3|flac|wav|m4a|aac|ogg|opus|webm|wma|alac|aiff|ape)$/i.test(file.name);
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/** Must match LOCAL_UPLOAD_LIMIT in src/web/api/music.ts. */
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const UPLOAD_MAX_MB = 500;
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const UPLOAD_MAX_BYTES = UPLOAD_MAX_MB * 1024 * 1024;
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// Video is accepted too (#149) — the server keeps only the audio track.
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// Keep the extension list in sync with AUDIO_EXTENSIONS / VIDEO_EXTENSIONS in
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// src/music/local.ts; the server re-validates, this just avoids a round-trip.
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function isMediaFile(file: File): boolean {
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return file.type.startsWith('audio/')
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|| file.type.startsWith('video/')
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|| /\.(mp3|flac|wav|m4a|aac|ogg|opus|webm|wma|alac|aiff|ape|mp4|mov|avi|mkv|flv|wmv|m4v|mpg|mpeg|3gp|ts|m2ts|ogv)$/i.test(file.name);
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}
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async function uploadLocalFiles(fileList: File[]) {
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@@ -414,10 +423,22 @@ async function uploadLocalFiles(fileList: File[]) {
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uploadMessage.value = '本地音频播放已关闭';
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return;
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}
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const files = fileList.filter(isAudioFile);
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const candidates = fileList.filter(isMediaFile);
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if (candidates.length === 0) {
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uploadMessageType.value = 'error';
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uploadMessage.value = '没有找到可上传的音频 / 视频文件';
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return;
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}
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// Reject oversize files before spending minutes uploading them (#149).
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// The server enforces the same cap (LOCAL_UPLOAD_LIMIT in
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// src/web/api/music.ts) and answers 413 — this only saves the round-trip,
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// which matters now that a single video can be hundreds of megabytes.
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const files = candidates.filter((f) => f.size <= UPLOAD_MAX_BYTES);
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const oversize = candidates.filter((f) => f.size > UPLOAD_MAX_BYTES);
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if (files.length === 0) {
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uploadMessageType.value = 'error';
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uploadMessage.value = '没有找到可上传的音频文件';
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uploadMessage.value = `文件太大，单个文件上限 ${UPLOAD_MAX_MB} MB：${oversize[0].name}`;
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return;
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}
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@@ -426,8 +447,19 @@ async function uploadLocalFiles(fileList: File[]) {
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uploadMessage.value = `正在上传 ${files.length} 个文件...`;
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const uploaded: Song[] = [];
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const failed: string[] = [];
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for (const file of files) {
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const failed: string[] = oversize.map((f) => `${f.name}: 超过 ${UPLOAD_MAX_MB} MB 上限`);
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for (const [i, file] of files.entries()) {
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// Videos are orders of magnitude bigger than the audio files this used to
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// handle (#149), so a silent "正在上传..." can sit there for minutes and
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// look hung. Report per-file percentage while the bytes are in flight, and
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// switch to a processing note once the server takes over (it still has to
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// probe the file and remux the audio track out).
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const label = files.length > 1 ? `（${i + 1}/${files.length}）` : '';
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const setProgress = (text: string) => {
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uploadMessageType.value = 'info';
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uploadMessage.value = `${text}${label}：${file.name}`;
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};
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setProgress('正在上传');
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try {
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const res = await axios.post('/api/music/local/upload', file, {
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headers: {
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@@ -435,6 +467,11 @@ async function uploadLocalFiles(fileList: File[]) {
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'X-Filename': encodeURIComponent(file.name),
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},
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maxBodyLength: Infinity,
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onUploadProgress: (e) => {
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if (!e.total) return;
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const pct = Math.round((e.loaded / e.total) * 100);
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setProgress(pct >= 100 ? '服务端处理中' : `正在上传 ${pct}%`);
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},
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});
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if (res.data?.song) uploaded.push(res.data.song as Song);
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} catch (err: any) {
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