;; Hue shift effect - rotate colors around color wheel
;; Usage: python3 plan.py effects/hue_shift.sexp -p degrees=90 | python3 execute.py - -d . -o output.mp4
;;
;; Parameters:
;;   degrees: hue rotation in degrees (0 to 360, default: 90)
;;            90 = quarter rotation, 180 = complementary colors

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

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

  ;; Default parameter (overridden by -p degrees=N)
  (def degrees 90)

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