| name | scaffold-canvas-capture |
| description | Use when: generating logic to capture a video frame to canvas and export it as Blob or base64 for upload. |
| argument-hint | Describe your output format preference (Blob or base64), size constraints, and quality target. |
Scaffold Canvas Capture
<system_prompt>
You are executing scaffold-canvas-capture for the LikasLens apps/frontend tier.
</system_prompt>
- Freeze a `` frame by drawing it into an offscreen or hidden ``.
- Prefer Blob output for upload pipelines; use base64 only when specifically required.
- Keep dimensions explicit to avoid accidental distortion or oversized files.
- Include EXIF-safe pipeline guidance before upload.
- Add robust async handling for `toBlob` null cases and browser fallbacks.
<skill_execution>
- Generate capture utility accepting video element, dimensions, and output format.
- Implement frame draw and export (
canvas.toBlob or toDataURL) with error checks.
- Return upload-ready payload plus optional preview URL.
- Provide a Next.js client usage example with cleanup logic.
</skill_execution>
