feat(video): add ffmpeg-backed video converter for mp4/webm/mov/avi/mkv

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
2026-08-01 21:58:23 +02:00
parent 886c2e8539
commit 913dbac691
2 changed files with 154 additions and 0 deletions
@@ -0,0 +1,37 @@
+import { execFile } from 'node:child_process';
+import { promisify } from 'node:util';
+import { register } from './registry.js';
+
+const execFileAsync = promisify(execFile);
+
+export const VIDEO_FORMATS = ['mp4', 'webm', 'mov', 'avi', 'mkv'];
+
+const CODEC_ARGS = {
+  mp4: ['-c:v', 'libx264', '-c:a', 'aac'],
+  mov: ['-c:v', 'libx264', '-c:a', 'aac'],
+  mkv: ['-c:v', 'libx264', '-c:a', 'aac'],
+  webm: ['-c:v', 'libvpx-vp9', '-c:a', 'libopus'],
+  avi: ['-c:v', 'mpeg4', '-c:a', 'libmp3lame'],
+};
+
+export function registerVideoConverters() {
+  for (const sourceFormat of VIDEO_FORMATS) {
+    for (const targetFormat of VIDEO_FORMATS) {
+      if (sourceFormat === targetFormat) continue;
+      register({
+        family: 'video',
+        sourceFormat,
+        targetFormat,
+        convert: async (inputPath, outputPath, { quality, timeoutMs } = {}) => {
+          const ffmpegPath = process.env.FFMPEG_PATH || 'ffmpeg';
+          const args = ['-y', '-i', inputPath, ...CODEC_ARGS[targetFormat]];
+          if (quality != null) {
+            args.push('-vf', `scale=-2:${quality}`);
+          }
+          args.push(outputPath);
+          await execFileAsync(ffmpegPath, args, { timeout: timeoutMs });
+        },
+      });
+    }
+  }
+}