;; Noise effect - random pixel noise
;; Usage: python3 plan.py effects/noise.sexp -p amount=40 | python3 execute.py - -d . -o output.mp4
;;
;; Parameters:
;;   amount: noise intensity (5 to 100, default: 40)

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

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

  ;; Default parameter (overridden by -p amount=N)
  (def amount 40)

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