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>
22 lines
782 B
Common Lisp
22 lines
782 B
Common Lisp
;; Scanlines effect - horizontal line overlay
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;; Usage: python3 plan.py effects/scanlines.sexp -p spacing=3 -p intensity=0.4 | python3 execute.py - -d . -o output.mp4
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;;
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;; Parameters:
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;; spacing: pixels between lines (1 to 8, default: 3)
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;; intensity: line darkness (0 to 1, default: 0.4)
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(recipe "scanlines"
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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 scanlines :path "sexp_effects/effects/scanlines.sexp")
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;; Default parameters (overridden by -p spacing=N -p intensity=N)
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(def spacing 3)
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(def intensity 0.4)
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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 scanlines :spacing spacing :intensity intensity)))
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result)
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