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>
23 lines
816 B
Common Lisp
23 lines
816 B
Common Lisp
;; Edge detect effect - Canny edge detection
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;; Usage: python3 plan.py effects/edge_detect.sexp -p low=50 -p high=150 | python3 execute.py - -d . -o output.mp4
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;;
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;; Parameters:
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;; low: lower threshold (10 to 100, default: 50)
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;; high: upper threshold (100 to 300, default: 150)
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;; edges between low-high are kept if connected to strong edges
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(recipe "edge_detect"
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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 edge_detect :path "sexp_effects/effects/edge_detect.sexp")
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;; Default parameters (overridden by -p low=N -p high=N)
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(def low 50)
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(def high 150)
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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 edge_detect :low low :high high)))
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result)
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