- New streaming/ module for real-time video processing:
- compositor.py: Main streaming compositor with cycle-crossfade
- sexp_executor.py: Executes compiled sexp recipes in real-time
- sexp_interp.py: Full S-expression interpreter for SLICE_ON Lambda
- recipe_adapter.py: Bridges recipes to streaming compositor
- sources.py: Video source with ffmpeg streaming
- audio.py: Real-time audio analysis (energy, beats)
- output.py: Preview (mpv) and file output with audio muxing
- New templates/:
- cycle-crossfade.sexp: Smooth zoom-based video cycling
- process-pair.sexp: Dual-clip processing with effects
- Key features:
- Videos cycle in input-videos order (not definition order)
- Cumulative whole-spin rotation
- Zero-weight sources skip processing
- Live audio-reactive effects
- New effects: blend_multi for weighted layer compositing
- Updated primitives and interpreter for streaming compatibility
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>
