remove ffmpeg video transcode, back to native-only playback

Drop the /transcode (and dead /transcode-audio) routes and the frontend
mkv/avi transcode wiring. Only browser-native formats (mp4, webm, mov,
m4v, ogv) are classified as video now; other containers fall through to
the generic file view.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

src/servers/api/file-browser/router.ts

@@ -1,6 +1,6 @@
 import { createRouter } from '@@/create-router';
 import { resolve, dirname, join, parse as parsePath } from 'node:path';
-import { readdir, stat, mkdir, rm, rename, readFile, cp, unlink } from 'node:fs/promises';
+import { readdir, stat, mkdir, rm, rename, readFile, cp } from 'node:fs/promises';
 import { existsSync } from 'node:fs';
 import { getHomeDir, DATA_PATH } from '@@/data-path';
 import * as errors from '@@/custom-errors';
@@ -261,116 +261,8 @@ router.get('/raw', async (ctx) => {
   });
 });
 
-// Transcode video via ffmpeg with caching — outputs a seekable MP4 file
-router.get('/transcode', async (ctx) => {
-  const user = ctx.get('user');
-  const rootDir = getRootDir(user, ctx.req.query('root') ?? undefined);
-  const relPath = (ctx.req.query('path') || '').replace(/^\/+/, '');
-  if (!relPath) throw errors.BAD_REQUEST('path is required');
-
-  const absPath = resolveUserPath(rootDir, relPath);
-  const s = await stat(absPath);
-  if (s.isDirectory()) throw errors.BAD_REQUEST('Cannot transcode a directory');
-
-  const userDataDir = getUserDataDir(user.email);
-  const { dir, name } = parsePath(relPath);
-  const cacheRel = dir ? `cache/video/${dir}/${name}.mp4` : `cache/video/${name}.mp4`;
-  const cacheAbs = resolve(userDataDir, cacheRel);
-
-  if (!existsSync(cacheAbs)) {
-    await mkdir(dirname(cacheAbs), { recursive: true });
-    const tmpPath = cacheAbs + '.tmp';
-
-    const proc = Bun.spawn(
-      [
-        'ffmpeg',
-        '-i',
-        absPath,
-        '-c:v',
-        'libx264',
-        '-preset',
-        'ultrafast',
-        '-crf',
-        '23',
-        '-c:a',
-        'aac',
-        '-b:a',
-        '128k',
-        '-movflags',
-        '+faststart',
-        '-y',
-        tmpPath,
-      ],
-      { stdout: 'ignore', stderr: 'pipe' },
-    );
-    const exitCode = await proc.exited;
-
-    if (exitCode !== 0) {
-      const stderr = await new Response(proc.stderr).text();
-      await unlink(tmpPath).catch(() => {});
-      throw errors.BAD_REQUEST(stderr.trim() || 'Video transcoding failed');
-    }
-
-    await rename(tmpPath, cacheAbs);
-  }
-
-  const file = Bun.file(cacheAbs);
-  const total = file.size;
-  const rangeHeader = ctx.req.header('range');
-
-  if (rangeHeader) {
-    const match = rangeHeader.match(/bytes=(\d*)-(\d*)/);
-    if (match) {
-      const start = match[1] ? parseInt(match[1], 10) : 0;
-      const end = match[2] ? parseInt(match[2], 10) : total - 1;
-      const chunkSize = end - start + 1;
-      return new Response(file.slice(start, end + 1), {
-        status: 206,
-        headers: {
-          'Content-Type': 'video/mp4',
-          'Content-Range': `bytes ${start}-${end}/${total}`,
-          'Content-Length': String(chunkSize),
-          'Accept-Ranges': 'bytes',
-        },
-      });
-    }
-  }
-
-  return new Response(file, {
-    headers: {
-      'Content-Type': 'video/mp4',
-      'Content-Length': String(total),
-      'Accept-Ranges': 'bytes',
-    },
-  });
-});
-
-// Transcode audio via ffmpeg for universal playback (outputs MP3)
-router.get('/transcode-audio', async (ctx) => {
-  const user = ctx.get('user');
-  const rootDir = getRootDir(user, ctx.req.query('root') ?? undefined);
-  const relPath = (ctx.req.query('path') || '').replace(/^\/+/, '');
-  if (!relPath) throw errors.BAD_REQUEST('path is required');
-
-  const absPath = resolveUserPath(rootDir, relPath);
-  const s = await stat(absPath);
-  if (s.isDirectory()) throw errors.BAD_REQUEST('Cannot transcode a directory');
-
-  const proc = Bun.spawn(['ffmpeg', '-i', absPath, '-c:a', 'libmp3lame', '-q:a', '2', '-f', 'mp3', 'pipe:1'], {
-    stdout: 'pipe',
-    stderr: 'ignore',
-  });
-
-  return new Response(proc.stdout as ReadableStream, {
-    headers: {
-      'Content-Type': 'audio/mpeg',
-      'Transfer-Encoding': 'chunked',
-    },
-  });
-});
-
 // Save a cached result (ocr/tts/transcriptions/audio) next to the original file
-const CACHE_PREFIXES = ['cache/ocr/', 'cache/tts/', 'cache/transcriptions/', 'cache/audio/', 'cache/video/'];
+const CACHE_PREFIXES = ['cache/ocr/', 'cache/tts/', 'cache/transcriptions/', 'cache/audio/'];
 
 router.post('/save-result', async (ctx) => {
   const user = ctx.get('user');

src/workspaces/officerdev/src/apps/FileViewer/FileViewerBody.tsx

@@ -1,6 +1,6 @@
 import { useMemo, useRef } from 'react';
 import { Loader2, FolderArchive } from 'lucide-react';
-import { getLang, getRawUrl, getTranscodeUrl, needsTranscode, getArchiveBaseName } from './file-types';
+import { getLang, getRawUrl, getArchiveBaseName } from './file-types';
 import { useFileViewer } from './FileViewerContext';
 import { PdfRenderer } from './renderers/PdfRenderer';
 import { ImageRenderer } from './renderers/ImageRenderer';
@@ -14,11 +14,11 @@ import { EditorRenderer } from './renderers/EditorRenderer';
 import { JsonEditorRenderer } from './renderers/JsonEditorRenderer';
 
 export const FileViewerBody = () => {
-  const { filePath, fileName, root, fileType, content, loading, error, autoPlay, editing, setContent } = useFileViewer();
+  const { filePath, fileName, root, fileType, content, loading, error, autoPlay, editing, setContent } =
+    useFileViewer();
   const scrollRef = useRef<HTMLDivElement>(null);
 
-  const videoSrc =
-    fileType === 'video' ? (needsTranscode(fileName) ? getTranscodeUrl(filePath, root) : getRawUrl(filePath, root)) : '';
+  const videoSrc = fileType === 'video' ? getRawUrl(filePath, root) : '';
 
   const isJson = useMemo(() => {
     if (!content) return false;
@@ -52,11 +52,7 @@ export const FileViewerBody = () => {
       ) : fileType === 'image' ? (
         <ImageRenderer src={getRawUrl(filePath, root)} fileName={fileName} />
       ) : fileType === 'video' ? (
-        <VideoRenderer
-          src={videoSrc}
-          fileName={fileName}
-          fallbackSrc={needsTranscode(fileName) ? undefined : getTranscodeUrl(filePath, root)}
-        />
+        <VideoRenderer src={videoSrc} fileName={fileName} />
       ) : fileType === 'audio' ? (
         <AudioRenderer src={getRawUrl(filePath, root)} fileName={fileName} autoPlay={autoPlay} />
       ) : content !== null && editing && isJson ? (

src/workspaces/officerdev/src/apps/FileViewer/file-types.ts

@@ -7,24 +7,6 @@ export type FileType = 'markdown' | 'audio' | 'video' | 'image' | 'pdf' | 'code'
 export const ARCHIVE_EXTS = ['zip', 'tar', 'gz', 'tgz', 'bz2', 'tbz2', 'xz', 'txz', 'zst', '7z', 'rar'];
 export const AUDIO_EXTS = ['mp3', 'wav', 'flac', 'ogg', 'oga', 'opus', 'aac', 'm4a', 'wma'];
 export const NATIVE_VIDEO_EXTS = ['mp4', 'm4v', 'webm', 'ogv', 'mov'];
-export const TRANSCODE_VIDEO_EXTS = [
-  'mkv',
-  'avi',
-  'wmv',
-  'flv',
-  'ts',
-  'mts',
-  'm2ts',
-  '3gp',
-  '3g2',
-  'vob',
-  'divx',
-  'asf',
-  'f4v',
-  'rm',
-  'rmvb',
-];
-export const ALL_VIDEO_EXTS = [...NATIVE_VIDEO_EXTS, ...TRANSCODE_VIDEO_EXTS];
 export const IMAGE_EXTS = [
   'jpg',
   'jpeg',
@@ -107,9 +89,15 @@ export function getFileType(name: string): FileType {
   if (ext === 'pdf') return 'pdf';
   if (EXT_TO_LANG[ext]) return 'code';
   if (AUDIO_EXTS.includes(ext)) return 'audio';
-  if (ALL_VIDEO_EXTS.includes(ext)) return 'video';
+  if (NATIVE_VIDEO_EXTS.includes(ext)) return 'video';
   if (IMAGE_EXTS.includes(ext)) return 'image';
-  if (baseName.endsWith('.tar.gz') || baseName.endsWith('.tar.bz2') || baseName.endsWith('.tar.xz') || baseName.endsWith('.tar.zst')) return 'archive';
+  if (
+    baseName.endsWith('.tar.gz') ||
+    baseName.endsWith('.tar.bz2') ||
+    baseName.endsWith('.tar.xz') ||
+    baseName.endsWith('.tar.zst')
+  )
+    return 'archive';
   if (ARCHIVE_EXTS.includes(ext)) return 'archive';
   if (baseName === 'dockerfile' || baseName === 'makefile') return 'code';
   return 'text';
@@ -127,10 +115,6 @@ export function getExt(name: string): string {
   return name.split('.').pop()?.toLowerCase() ?? '';
 }
 
-export function needsTranscode(name: string): boolean {
-  return TRANSCODE_VIDEO_EXTS.includes(getExt(name));
-}
-
 export function formatTime(s: number): string {
   if (!isFinite(s) || isNaN(s)) return '0:00';
   const h = Math.floor(s / 3600);
@@ -147,20 +131,6 @@ export function getRawUrl(filePath: string, root?: string): string {
   return `${API_URL}/file-browser/raw?path=${encodeURIComponent(filePath)}&token=${encodeURIComponent(token)}${rootParam}`;
 }
 
-export function getTranscodeUrl(filePath: string, root?: string): string {
-  const headers = getHeaders();
-  const token = headers['Authorization']?.replace('Bearer ', '') ?? '';
-  const rootParam = root && root !== 'home' ? `&root=${encodeURIComponent(root)}` : '';
-  return `${API_URL}/file-browser/transcode?path=${encodeURIComponent(filePath)}&token=${encodeURIComponent(token)}${rootParam}`;
-}
-
-export function getTranscodeAudioUrl(filePath: string, root?: string): string {
-  const headers = getHeaders();
-  const token = headers['Authorization']?.replace('Bearer ', '') ?? '';
-  const rootParam = root && root !== 'home' ? `&root=${encodeURIComponent(root)}` : '';
-  return `${API_URL}/file-browser/transcode-audio?path=${encodeURIComponent(filePath)}&token=${encodeURIComponent(token)}${rootParam}`;
-}
-
 export function getArchiveBaseName(name: string): string {
   const lower = name.toLowerCase();
   for (const compound of ['.tar.gz', '.tar.bz2', '.tar.xz', '.tar.zst']) {

src/workspaces/officerdev/src/apps/FileViewer/renderers/VideoRenderer.tsx

@@ -6,10 +6,9 @@ import { useSeekBar, SeekBar } from './SeekBar';
 type VideoRendererProps = {
   src: string;
   fileName: string;
-  fallbackSrc?: string;
 };
 
-export const VideoRenderer = ({ src, fileName, fallbackSrc }: VideoRendererProps) => {
+export const VideoRenderer = ({ src, fileName }: VideoRendererProps) => {
   const videoRef = useRef<HTMLVideoElement>(null);
   const containerRef = useRef<HTMLDivElement>(null);
   const hideTimer = useRef<ReturnType<typeof setTimeout>>(null);
@@ -27,7 +26,6 @@ export const VideoRenderer = ({ src, fileName, fallbackSrc }: VideoRendererProps
   useEffect(() => {
     const v = videoRef.current;
     if (!v) return;
-    let blobUrl: string | null = null;
     const onLoaded = () => {
       setDuration(v.duration);
       setLoaded(true);
@@ -36,34 +34,7 @@ export const VideoRenderer = ({ src, fileName, fallbackSrc }: VideoRendererProps
     const onPlay = () => setPlaying(true);
     const onPause = () => setPlaying(false);
     const onEnded = () => setPlaying(false);
-    let fetching = false;
-    let fetchDone = false;
-    const onError = () => {
-      if (fetching) return;
-      if (fetchDone) {
-        setError(true);
-        return;
-      }
-      fetching = true;
-      const fetchUrl = fallbackSrc || src;
-      fetch(fetchUrl)
-        .then((res) => {
-          if (!res.ok) throw new Error();
-          return res.blob();
-        })
-        .then((blob) => {
-          fetching = false;
-          fetchDone = true;
-          blobUrl = URL.createObjectURL(blob);
-          v.src = blobUrl;
-          v.load();
-        })
-        .catch(() => {
-          fetching = false;
-          fetchDone = true;
-          setError(true);
-        });
-    };
+    const onError = () => setError(true);
     v.addEventListener('loadedmetadata', onLoaded);
     v.addEventListener('timeupdate', onTime);
     v.addEventListener('play', onPlay);
@@ -77,7 +48,6 @@ export const VideoRenderer = ({ src, fileName, fallbackSrc }: VideoRendererProps
       v.removeEventListener('pause', onPause);
       v.removeEventListener('ended', onEnded);
       v.removeEventListener('error', onError);
-      if (blobUrl) URL.revokeObjectURL(blobUrl);
     };
   }, []);
 
@@ -147,7 +117,14 @@ export const VideoRenderer = ({ src, fileName, fallbackSrc }: VideoRendererProps
         if (playing) setShowControls(false);
       }}
     >
-      <video ref={videoRef} src={src} preload="metadata" playsInline className="max-w-full max-h-full" onClick={togglePlay} />
+      <video
+        ref={videoRef}
+        src={src}
+        preload="metadata"
+        playsInline
+        className="max-w-full max-h-full"
+        onClick={togglePlay}
+      />
 
       {loaded && !playing && (
         <button onClick={togglePlay} className="absolute inset-0 flex items-center justify-center cursor-pointer">
@@ -183,7 +160,10 @@ export const VideoRenderer = ({ src, fileName, fallbackSrc }: VideoRendererProps
           </button>
 
           <div className="flex items-center gap-1.5">
-            <button onClick={toggleMute} className="p-1 text-white/70 hover:text-white transition-colors cursor-pointer">
+            <button
+              onClick={toggleMute}
+              className="p-1 text-white/70 hover:text-white transition-colors cursor-pointer"
+            >
               {muted ? <VolumeX className="h-4 w-4" /> : <Volume2 className="h-4 w-4" />}
             </button>
             <input
@@ -205,7 +185,10 @@ export const VideoRenderer = ({ src, fileName, fallbackSrc }: VideoRendererProps
 
           <span className="text-[9px] font-mono text-white/30 uppercase tracking-wider">{getExt(fileName)}</span>
 
-          <button onClick={toggleFullscreen} className="p-1 text-white/70 hover:text-white transition-colors cursor-pointer">
+          <button
+            onClick={toggleFullscreen}
+            className="p-1 text-white/70 hover:text-white transition-colors cursor-pointer"
+          >
             {isFullscreen ? <Minimize2 className="h-4 w-4" /> : <Maximize2 className="h-4 w-4" />}
           </button>
         </div>