feat(tools): 2.0 phase 5 wave 3a - video depth (22 tools) (#221)

apps/api/src/routes/tools/rotate-video.ts

@@ -0,0 +1,54 @@
+import { extname } from "node:path";
+import { resolveEncoder } from "@snapotter/media-engine";
+import type { FastifyInstance } from "fastify";
+import { z } from "zod";
+import { runMediaTool, videoContentType } from "../../lib/media-tool.js";
+import { createToolRoute } from "../tool-factory.js";
+
+const VF_MAP: Record<string, string> = {
+  cw90: "transpose=1",
+  ccw90: "transpose=2",
+  "180": "transpose=1,transpose=1",
+  hflip: "hflip",
+  vflip: "vflip",
+};
+
+const settingsSchema = z.object({
+  transform: z.enum(["cw90", "ccw90", "180", "hflip", "vflip"]),
+});
+
+export function registerRotateVideo(app: FastifyInstance) {
+  createToolRoute(app, {
+    toolId: "rotate-video",
+    settingsSchema,
+    process: async () => {
+      throw new Error("rotate-video is v2-only");
+    },
+    processV2: async (ctx) => {
+      const settings = settingsSchema.parse(ctx.settings);
+      const origExt = extname(ctx.inputs[0].filename) || ".mp4";
+      const base = ctx.inputs[0].filename.replace(/\.[^.]+$/, "");
+      const outName = `${base}_rotated${origExt}`;
+      const contentType = videoContentType(origExt);
+
+      const { outPath } = await runMediaTool(ctx, outName, (inPath, out) => [
+        "-i",
+        inPath,
+        "-vf",
+        VF_MAP[settings.transform],
+        "-c:v",
+        resolveEncoder("h264"),
+        "-crf",
+        "20",
+        "-preset",
+        "medium",
+        "-pix_fmt",
+        "yuv420p",
+        "-c:a",
+        "copy",
+        out,
+      ]);
+      return { scratchPath: outPath, filename: outName, contentType };
+    },
+  });
+}