| -1785247276 New | | Canonical sizes, aspect ratios and safe areas for social video ad placements (Reels, TikTok In-Feed, Shorts, Facebook Feed, YouTube in-stream). Includes cover-crop math for fitting a source clip to a placement. The constants come from the render pipeline behind Ravvi AI (https://ravvi.ai), an AI ad generator, so they match what real ads ship with. A TypeScript port of the same table lives at https://jsr.io/@ravvi/ad-formats This package needs documentation | Racket | succeeds | 4 |