feat(film): timing config (8 sequences, 265s, 30fps)

marketing/product-film/src/Root.tsx

@@ -1,15 +1,16 @@
 import { Composition } from "remotion";
 import { Film } from "./Film";
+import { TOTAL_FRAMES, FPS, WIDTH, HEIGHT } from "./timing";
 
 export const Root: React.FC = () => {
   return (
     <Composition
       id="LynkedUpProFilm"
       component={Film}
-      durationInFrames={150}
-      fps={30}
-      width={1920}
-      height={1080}
+      durationInFrames={TOTAL_FRAMES}
+      fps={FPS}
+      width={WIDTH}
+      height={HEIGHT}
     />
   );
 };

marketing/product-film/src/timing.test.ts

@@ -0,0 +1,22 @@
+import { describe, it, expect } from "vitest";
+import { DURATIONS, TOTAL_FRAMES, FPS, SEQUENCE_ORDER } from "./timing";
+
+describe("timing", () => {
+  it("uses 30 fps", () => {
+    expect(FPS).toBe(30);
+  });
+  it("has all 8 sequences in order", () => {
+    expect(SEQUENCE_ORDER).toEqual([
+      "coldOpen", "promise", "pillar1", "pillar2", "pillar3", "pillar4", "pillar5", "craneClose",
+    ]);
+  });
+  it("every duration is a positive integer number of frames", () => {
+    for (const key of SEQUENCE_ORDER) {
+      expect(DURATIONS[key]).toBeGreaterThan(0);
+      expect(Number.isInteger(DURATIONS[key])).toBe(true);
+    }
+  });
+  it("TOTAL_FRAMES equals 265 seconds at 30fps", () => {
+    expect(TOTAL_FRAMES).toBe(7950);
+  });
+});

marketing/product-film/src/timing.ts

@@ -0,0 +1,31 @@
+export const FPS = 30;
+export const WIDTH = 1920;
+export const HEIGHT = 1080;
+
+const sec = (s: number) => Math.round(s * FPS);
+
+export const SEQUENCE_ORDER = [
+  "coldOpen",
+  "promise",
+  "pillar1",
+  "pillar2",
+  "pillar3",
+  "pillar4",
+  "pillar5",
+  "craneClose",
+] as const;
+
+export type SequenceKey = (typeof SEQUENCE_ORDER)[number];
+
+export const DURATIONS: Record<SequenceKey, number> = {
+  coldOpen: sec(12),
+  promise: sec(8),
+  pillar1: sec(45),
+  pillar2: sec(45),
+  pillar3: sec(50),
+  pillar4: sec(45),
+  pillar5: sec(45),
+  craneClose: sec(15),
+};
+
+export const TOTAL_FRAMES = SEQUENCE_ORDER.reduce((acc, k) => acc + DURATIONS[k], 0);