demo.git/tools/timeline_editor/index.html, branch main

feat: add Sequence V2 format support to timeline editor

2026-02-17T06:52:48Z

Implements full support for the sequence v2 DAG format with explicit node routing and arrow syntax. New features: - timeline-format.js module for parsing/serializing v2 format - NODE declarations with typed buffers (u8x4_norm, f32x4, etc.) - Arrow syntax for effect routing: input1 input2 -> output1 output2 - Buffer chain visualization in properties panel and tooltips - Node editor modal for adding/deleting node declarations - Validation for undeclared node references (when NODEs explicit) - Backward compatible with auto-inferred nodes Files added: - tools/timeline_editor/timeline-format.js (214 lines) - tools/timeline_editor/test_format.html (automated tests) - workspaces/test/timeline_v2_test.seq (test file with NODE declarations) Files modified: - tools/timeline_editor/index.html (~40 changes for v2 support) All success criteria met. Round-trip tested with existing timelines. handoff(Claude): Timeline editor now fully supports v2 format with explicit node routing, NODE declarations, and buffer chain visualization. Parser handles both explicit NODE declarations and auto-inferred nodes. Validation only runs when explicit NODEs exist. Ready for production use. Co-Authored-By: Claude Sonnet 4.5

refactor(tools): consolidate common CSS for HTML tools

2026-02-15T16:09:57Z

Extract common styles from various tool HTML files (timeline, spectral, cnn_v2_test, etc.) into a shared stylesheet. This reduces code duplication and improves maintainability of the tool frontends. - Create a new 'tools/common/style.css' to house the shared rules. - Update all tool HTML files to link to the new stylesheet. - Remove redundant inline styles from individual HTML files.

fix(audio): WAV dump drift improvements, acceptable state

2026-02-15T15:41:08Z

WAV dump changes: - Bypass ring buffer, render directly with synth_render() - Frame accumulator eliminates truncation errors - Skip pre-fill and fix seek for WAV dump mode - Result: No glitches, -150ms drift at 64b (acceptable) Timeline editor: - Fix waveform tooltip position calculation - Increase beat bar visibility (0.5 opacity) Cleanup: - Remove all drift debugging code from audio.cc and tracker.cc Status: Acceptable for now, further investigation needed. Co-Authored-By: Claude Sonnet 4.5

fix(timeline-editor): capture all wheel events at container level

2026-02-15T14:23:21Z

- Add timelineContainer reference and capture wheel events with { capture: true } - Remove redundant wheel handlers from individual sequence/effect elements - Prevents child elements from interfering with zoom/scroll functionality Co-Authored-By: Claude Sonnet 4.5

docs(timeline-editor): clarify effect time units in property panel

2026-02-15T14:20:17Z

Add "beats" to start/end time labels in effect properties panel for consistency with sequence panel. Co-Authored-By: Claude Sonnet 4.5

refactor(timeline-editor): rename variables to reflect beat-based units

2026-02-15T14:14:47Z

Renamed time-related variables for clarity: - pixelsPerSecond → pixelsPerBeat (timeline internally uses beats) - audioDuration → audioDurationSeconds - maxTime → maxTimeBeats - Local variables: newTime → newTimeBeats, duration → durationBeats - Updated stats display to show both beats and seconds All internal state stores beat values; serializer writes beats without suffix per .seq format. Co-Authored-By: Claude Sonnet 4.5

refactor(timeline-editor): centralize BPM calculations

2026-02-15T14:00:57Z

Replace repeated 60.0/bpm calculations with precomputed secondsPerBeat and beatsPerSecond properties. Add computeBPMValues helper and updateBPM function for consistency. Also prevent wheel events on time markers. Co-Authored-By: Claude Sonnet 4.5

feat(timeline-editor): add timing tooltip and cursor in waveform view

2026-02-15T13:54:32Z

Shows precise time (seconds) and beat position under mouse cursor with a vertical guide line for accurate sample timing measurements. Co-Authored-By: Claude Sonnet 4.5

fix(timeline-editor): enable mouse wheel on all sequence viewer elements

2026-02-15T13:49:08Z

Wheel events now work when hovering over sequence boxes and effects, not just the timeline background. Co-Authored-By: Claude Sonnet 4.5

refactor(timeline-editor): extract viewport and playback to ES6 modules

2026-02-15T12:04:49Z

Extract zoom/scroll/playback code from monolithic index.html into separate modules for better code organization: - timeline-viewport.js: Zoom, scroll sync, indicator positioning (133 lines) - timeline-playback.js: Audio loading, playback, waveform rendering (303 lines) - index.html: Reduced from 1093 to 853 lines (-22%) Requires HTTP server for ES6 module imports. Updated README with usage. Co-Authored-By: Claude Sonnet 4.5