;; Rotate effect - rotate image around center
;; Usage: python3 plan.py effects/rotate.sexp -p angle=15 | python3 execute.py - -d . -o output.mp4
;;
;; Parameters:
;;   angle: rotation in degrees (-180 to 180, default: 15)
;;          positive = clockwise

(recipe "rotate"
  :version "1.0"
  :encoding (:codec "libx264" :crf 20 :preset "medium" :audio-codec "aac" :fps 30)

  (effect rotate :path "sexp_effects/effects/rotate.sexp")

  ;; Default parameter (overridden by -p angle=N)
  (def angle 15)

  (def video (source :path "monday.webm"))
  (def clip (-> video (segment :start 0 :duration 10)))
  (def result (-> clip (effect rotate :angle angle)))
  result)