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
657 B
Common Lisp
21 lines
657 B
Common Lisp
;; Zoom effect - scale from center
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;; Usage: python3 plan.py effects/zoom.sexp -p factor=1.2 | python3 execute.py - -d . -o output.mp4
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;;
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;; Parameters:
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;; factor: zoom multiplier (0.5 to 3.0, default: 1.2)
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;; <1 = zoom out, >1 = zoom in
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(recipe "zoom"
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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 zoom :path "sexp_effects/effects/zoom.sexp")
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;; Default parameter (overridden by -p factor=N)
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(def factor 1.2)
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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 zoom :factor factor)))
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result)
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