- Add _cache_analysis_tracks() to cache each analysis track individually
with content-hash IDs, replacing inline data with cache-id refs
- Add _resolve_analysis_refs() to resolve cache-id refs back to full data
- Add extract_segment_with_loop() helper that detects when output is
shorter than requested duration and re-runs with -stream_loop -1
- Update COMPOUND handler's FFmpeg and Python paths to use looping
- This fixes videos shorter than audio duration being truncated
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
- Add ascii_dual_blend.sexp: blends two ASCII-processed videos synced to audio
- Fix blend.sexp: add require-primitives, fix params syntax
- Fix layer.sexp: add require-primitives
- Use consistent (effect blend ...) syntax instead of special form
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
- Add primitive_libs/ with modular primitive loading (core, math, image,
color, color_ops, filters, geometry, drawing, blending, arrays, ascii)
- Effects now explicitly declare dependencies via (require-primitives "...")
- Convert ascii-fx-zone from hardcoded special form to loadable primitive
- Add _is_symbol/_is_keyword helpers for duck typing to support both
sexp_effects.parser.Symbol and artdag.sexp.parser.Symbol classes
- Auto-inject _interp and _env for primitives that need them
- Remove silent error swallowing in cell_effect evaluation
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Implements ascii_fx_zone effect that allows applying arbitrary sexp effects
to each character cell via cell_effect lambdas. Each cell is rendered as a
small image that effects can operate on.
Key changes:
- New ascii_fx_zone effect with cell_effect parameter for per-cell transforms
- Zone context (row, col, lum, sat, hue, etc.) available in cell_effect lambdas
- Effects are now loaded explicitly from recipe declarations, not auto-loaded
- Added effects_registry to plan for explicit effect dependency tracking
- Updated effect definition syntax across all sexp effects
- New run_staged.py for executing staged recipes
- Example recipes demonstrating alternating rotation and blur/rgb_split patterns
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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>
