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
840 B
Common Lisp
22 lines
840 B
Common Lisp
;; Color adjust effect - combined brightness and contrast
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;; Usage: python3 plan.py effects/color-adjust.sexp -p brightness=20 -p contrast=1.2 | python3 execute.py - -d . -o output.mp4
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;;
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;; Parameters:
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;; brightness: brightness adjustment (-255 to 255, default: 20)
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;; contrast: contrast multiplier (0.0 to 3.0, default: 1.2)
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(recipe "color-adjust"
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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 color-adjust :path "sexp_effects/effects/color-adjust.sexp")
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;; Default parameters (overridden by -p brightness=N -p contrast=N)
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(def brightness 20)
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(def contrast 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 color-adjust :brightness brightness :contrast contrast)))
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result)
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