406cc7c0c7
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>
21 lines
739 B
Common Lisp
21 lines
739 B
Common Lisp
;; Posterize effect - reduce color levels for poster-like look
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;; Usage: python3 plan.py effects/posterize.sexp -p levels=6 | python3 execute.py - -d . -o output.mp4
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;;
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;; Parameters:
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;; levels: number of color levels per channel (2 to 32, default: 6)
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;; lower = more posterized, higher = more gradual
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(recipe "posterize"
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:version "1.0"
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:encoding (:codec "libx264" :crf 20 :preset "medium" :audio-codec "aac" :fps 30)
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(effect posterize :path "sexp_effects/effects/posterize.sexp")
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;; Default parameter (overridden by -p levels=N)
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(def levels 6)
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(def video (source :path "monday.webm"))
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(def clip (-> video (segment :start 0 :duration 10)))
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(def result (-> clip (effect posterize :levels levels)))
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result)
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