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Initial commit: video effects processing system

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Add S-expression based video effects pipeline with modular effect
definitions, constructs, and recipe files.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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gilesb
2026-01-19 12:34:45 +00:00
commit 406cc7c0c7
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;; Pixelsort effect - glitch art pixel sorting
;; Usage: python3 plan.py effects/pixelsort.sexp -p threshold_low=30 -p threshold_high=220 | python3 execute.py - -d . -o output.mp4
;;
;; Parameters:
;; threshold_low: lower brightness threshold (0 to 128, default: 30)
;; threshold_high: upper brightness threshold (128 to 255, default: 220)
;; pixels between thresholds get sorted
(recipe "pixelsort"
:version "1.0"
:encoding (:codec "libx264" :crf 20 :preset "medium" :audio-codec "aac" :fps 30)
(effect pixelsort :path "sexp_effects/effects/pixelsort.sexp")
;; Default parameters (overridden by -p threshold_low=N -p threshold_high=N)
(def threshold_low 30)
(def threshold_high 220)
(def video (source :path "monday.webm"))
(def clip (-> video (segment :start 0 :duration 10)))
(def result (-> clip (effect pixelsort :threshold_low threshold_low :threshold_high threshold_high)))
result)