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
705 B
Common Lisp
21 lines
705 B
Common Lisp
;; Trails effect - motion blur/persistence
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;; Usage: python3 plan.py effects/trails.sexp -p persistence=0.7 | python3 execute.py - -d . -o output.mp4
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;;
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;; Parameters:
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;; persistence: trail strength (0.3 to 0.95, default: 0.7)
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;; higher = longer trails
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(recipe "trails"
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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 trails :path "sexp_effects/effects/trails.sexp")
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;; Default parameter (overridden by -p persistence=N)
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(def persistence 0.7)
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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 trails :persistence persistence)))
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result)
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