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
700 B
Common Lisp
21 lines
700 B
Common Lisp
;; Contrast effect - adjust image contrast
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;; Usage: python3 plan.py effects/contrast.sexp -p amount=1.5 | python3 execute.py - -d . -o output.mp4
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;;
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;; Parameters:
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;; amount: contrast multiplier (0.0 to 3.0, default: 1.5)
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;; <1 = less contrast, >1 = more contrast
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(recipe "contrast"
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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 contrast :path "sexp_effects/effects/contrast.sexp")
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;; Default parameter (overridden by -p amount=N)
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(def amount 1.5)
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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 contrast :amount amount)))
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result)
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