Initial commit: video effects processing system

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>

run-effect.sh

@@ -0,0 +1,122 @@
+#!/bin/bash
+# Run a single effect by number (0-42)
+# Usage: ./run-effect.sh <effect-number>
+#
+# Note: For effects with simple numeric params, you can also use native params:
+#   python3 plan.py recipe-parametric.sexp -p strength=5 -p amount=30 | python3 execute.py - -d . -o output.mp4
+
+EFFECT_NUM=${1:-0}
+
+# Effect definitions array
+EFFECTS=(
+  "(effect invert)"
+  "(effect grayscale)"
+  "(effect sepia)"
+  "(effect brightness :amount 30)"
+  "(effect contrast :amount 1.5)"
+  "(effect saturation :amount 2.0)"
+  "(effect hue_shift :degrees 90)"
+  "(effect color_cycle :speed 2)"
+  "(effect threshold :level 128)"
+  "(effect posterize :levels 6)"
+  "(effect blur :radius 10)"
+  "(effect sharpen :amount 2)"
+  "(effect bloom :intensity 0.6 :radius 20)"
+  "(effect color-adjust :brightness 20 :contrast 1.2)"
+  "(effect swirl :strength 3)"
+  "(effect fisheye :strength 0.5)"
+  "(effect wave :amplitude 30 :wavelength 60)"
+  "(effect ripple :amplitude 20 :frequency 6)"
+  "(effect kaleidoscope :segments 6 :rotation_speed 30)"
+  "(effect zoom :factor 1.2)"
+  "(effect rotate :angle 15)"
+  "(effect mirror :direction \"horizontal\")"
+  "(effect pixelate :block_size 16)"
+  "(effect ascii_art :char_size 8 :color_mode \"color\")"
+  "(effect ascii_zones :char_size 10)"
+  "(effect edge_detect :low 50 :high 150)"
+  "(effect emboss :strength 1.5)"
+  "(effect outline :thickness 2)"
+  "(effect neon_glow :glow_radius 20 :glow_intensity 2)"
+  "(effect crt :line_spacing 3 :vignette_amount 0.3)"
+  "(effect scanlines :spacing 3 :intensity 0.4)"
+  "(effect film_grain :intensity 0.25)"
+  "(effect vignette :strength 0.6)"
+  "(effect noise :amount 40)"
+  "(effect rgb_split :offset_x 20)"
+  "(effect echo :num_echoes 4 :decay 0.5)"
+  "(effect trails :persistence 0.7)"
+  "(effect strobe :frequency 4)"
+  "(effect flip :direction \"horizontal\")"
+  "(effect tile_grid :rows 2 :cols 2)"
+  "(effect pixelsort :threshold_low 30 :threshold_high 220)"
+  "(effect datamosh :corruption 0.5 :block_size 24)"
+)
+
+if [ "$EFFECT_NUM" -lt 0 ] || [ "$EFFECT_NUM" -ge ${#EFFECTS[@]} ]; then
+  echo "Effect number must be 0-$((${#EFFECTS[@]}-1))"
+  exit 1
+fi
+
+EFFECT="${EFFECTS[$EFFECT_NUM]}"
+echo "Running effect $EFFECT_NUM: $EFFECT"
+
+# Create temp recipe with selected effect
+cat > /tmp/recipe-temp.sexp << EOF
+(recipe "effect-test"
+  :version "1.0"
+  :encoding (:codec "libx264" :crf 20 :preset "medium" :audio-codec "aac" :fps 30)
+
+  (effect ascii_art :path "sexp_effects/effects/ascii_art.sexp")
+  (effect ascii_zones :path "sexp_effects/effects/ascii_zones.sexp")
+  (effect bloom :path "sexp_effects/effects/bloom.sexp")
+  (effect blur :path "sexp_effects/effects/blur.sexp")
+  (effect brightness :path "sexp_effects/effects/brightness.sexp")
+  (effect color-adjust :path "sexp_effects/effects/color-adjust.sexp")
+  (effect color_cycle :path "sexp_effects/effects/color_cycle.sexp")
+  (effect contrast :path "sexp_effects/effects/contrast.sexp")
+  (effect crt :path "sexp_effects/effects/crt.sexp")
+  (effect datamosh :path "sexp_effects/effects/datamosh.sexp")
+  (effect echo :path "sexp_effects/effects/echo.sexp")
+  (effect edge_detect :path "sexp_effects/effects/edge_detect.sexp")
+  (effect emboss :path "sexp_effects/effects/emboss.sexp")
+  (effect film_grain :path "sexp_effects/effects/film_grain.sexp")
+  (effect fisheye :path "sexp_effects/effects/fisheye.sexp")
+  (effect flip :path "sexp_effects/effects/flip.sexp")
+  (effect grayscale :path "sexp_effects/effects/grayscale.sexp")
+  (effect hue_shift :path "sexp_effects/effects/hue_shift.sexp")
+  (effect invert :path "sexp_effects/effects/invert.sexp")
+  (effect kaleidoscope :path "sexp_effects/effects/kaleidoscope.sexp")
+  (effect mirror :path "sexp_effects/effects/mirror.sexp")
+  (effect neon_glow :path "sexp_effects/effects/neon_glow.sexp")
+  (effect noise :path "sexp_effects/effects/noise.sexp")
+  (effect outline :path "sexp_effects/effects/outline.sexp")
+  (effect pixelate :path "sexp_effects/effects/pixelate.sexp")
+  (effect pixelsort :path "sexp_effects/effects/pixelsort.sexp")
+  (effect posterize :path "sexp_effects/effects/posterize.sexp")
+  (effect rgb_split :path "sexp_effects/effects/rgb_split.sexp")
+  (effect ripple :path "sexp_effects/effects/ripple.sexp")
+  (effect rotate :path "sexp_effects/effects/rotate.sexp")
+  (effect saturation :path "sexp_effects/effects/saturation.sexp")
+  (effect scanlines :path "sexp_effects/effects/scanlines.sexp")
+  (effect sepia :path "sexp_effects/effects/sepia.sexp")
+  (effect sharpen :path "sexp_effects/effects/sharpen.sexp")
+  (effect strobe :path "sexp_effects/effects/strobe.sexp")
+  (effect swirl :path "sexp_effects/effects/swirl.sexp")
+  (effect threshold :path "sexp_effects/effects/threshold.sexp")
+  (effect tile_grid :path "sexp_effects/effects/tile_grid.sexp")
+  (effect trails :path "sexp_effects/effects/trails.sexp")
+  (effect vignette :path "sexp_effects/effects/vignette.sexp")
+  (effect wave :path "sexp_effects/effects/wave.sexp")
+  (effect zoom :path "sexp_effects/effects/zoom.sexp")
+
+  (def video (source :path "monday.webm"))
+  (def audio (source :path "dizzy.mp3"))
+  (def clip (-> video (segment :start 0 :duration 10)))
+  (def audio-clip (-> audio (segment :start 0 :duration 10)))
+  (def result (-> clip $EFFECT))
+  (mux result audio-clip))
+EOF
+
+python3 plan.py /tmp/recipe-temp.sexp | python3 execute.py - -d . -o "effect-${EFFECT_NUM}.mp4"
+echo "Output: effect-${EFFECT_NUM}.mp4"