| name | lgs-1920-studio-replay-video-export |
| description | Build, debug, or extend LGS1920 Replay playback and video export. Use for camera tracking, crop handling, Cesium frame capture, static and dynamic widget composition, recording state, HQ export, progress, cancellation, or finalization. |
Replay Video Export
Use this skill when a change crosses Replay playback and recording. Inspect src/components/JourneyReplay/, src/core/ui/, src/core/events/appShortcuts.js, and video tools before editing.
Workflow:
- Map the state machine: pre-recording, recording, snapshot, finalizing, cancellation, and completion.
- Keep Replay camera state and video crop dimensions synchronized before capture.
- Preserve camera angle and position modes across clips and HQ export.
- Separate Cesium frame capture from overlay or widget composition. Keep Logo, Credits, and dynamic widgets aligned with the crop zone.
- Make progress and cleanup idempotent. Restore camera and UI visibility on every exit path.
- Test low-FPS and HQ paths, clip transitions, crop ratios, cancellation, and stale startup state.
Do not add a second recording state machine, hide cleanup failures, or run bun run dev. Add focused tests and run the relevant Vitest suite, lint, and build when appropriate.
