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Initial commit: video effects processing system

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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>
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gilesb
2026-01-19 12:34:45 +00:00
commit 406cc7c0c7
171 changed files with 13406 additions and 0 deletions
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sexp_effects/effects/posterize.sexp Normal file
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;; Posterize effect - reduces color levels
;; @param levels int [2, 32] default 8
(define-effect posterize
((levels 8))
(let ((step (floor (/ 256 levels))))
(map-pixels frame
(lambda (x y c)
(rgb (* (floor (/ (red c) step)) step)
(* (floor (/ (green c) step)) step)
(* (floor (/ (blue c) step)) step))))))