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
759 B
Common Lisp
22 lines
759 B
Common Lisp
;; Echo effect - temporal ghosting/trails
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;; Usage: python3 plan.py effects/echo.sexp -p num_echoes=4 -p decay=0.5 | python3 execute.py - -d . -o output.mp4
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;;
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;; Parameters:
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;; num_echoes: number of ghost frames (1 to 10, default: 4)
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;; decay: fade rate per echo (0.2 to 0.9, default: 0.5)
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(recipe "echo"
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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 echo :path "sexp_effects/effects/echo.sexp")
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;; Default parameters (overridden by -p num_echoes=N -p decay=N)
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(def num_echoes 4)
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(def decay 0.5)
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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 echo :num_echoes num_echoes :decay decay)))
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result)
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