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feat: add canvas-based live preview#723

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jagzgotspark wants to merge 1 commit into
magic-peach:mainfrom
jagzgotspark:feat/canvas-live-preview
Open

feat: add canvas-based live preview#723
jagzgotspark wants to merge 1 commit into
magic-peach:mainfrom
jagzgotspark:feat/canvas-live-preview

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@jagzgotspark
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Description
Implemented a canvas-based live preview system for video transformations.
Changes Made

  • Added real-time canvas preview rendering using requestAnimationFrame
  • Added live rotation preview (0°, 90°, 180°, 270°)
  • Added real-time brightness, contrast, and saturation preview updates
  • Added fit/fill framing visualization in preview
  • Kept FFmpeg export pipeline unchanged (preview-only rendering)
    Related Issue
    Fixes feat: canvas-based live preview — show crop/rotation/color changes instantly #653
    Type of Contribution
  • Bug fix
  • New feature
  • Documentation update
  • GSSoC contribution
    Participant Info
  • GitHub username: jagzgotspark
  • Contribution level (Beginner/Intermediate/Advanced): Advanced
    Screen Recording
    Recording / Loom link:
screen-recording-2026-05-19-at-50324-pm_dGbbFW0W.mp4

Checklist
✅I have read the contribution guidelines
✅My changes follow the project structure
❎I have tested my changes in Chrome, Firefox, and Safari
✅ bun run lint passes (no ESLint errors)
✅ bunx tsc --noEmit passes (no TypeScript errors)
✅New interactive elements have aria-label / accessible names
✅No console.log statements left in
✅ This PR is related to a valid issue
✅Screen recording attached above (required for UI/feature/design changes)

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vercel Bot commented May 19, 2026

@jagzgotspark is attempting to deploy a commit to the magic-peach1's projects Team on Vercel.

A member of the Team first needs to authorize it.

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✅ PR Format Check Passed — @jagzgotspark

Basic format checks passed. A maintainer will review your code changes.

This does not mean the PR is approved — it just means the format is correct.

@github-actions github-actions Bot added level:intermediate Intermediate level - 35 pts type:bug Bug fix type:design UI/UX design type:docs Documentation type:feature New feature labels May 19, 2026
@github-actions
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👋 Thanks for your PR, @jagzgotspark!

Welcome to Reframe — a browser-based video editor built for everyone 🎬

🟠 GSSoC'26 PR detected — thanks for contributing under GirlScript Summer of Code 2026!

What happens next

  1. 🤖 Automated checks — build & TypeScript typecheck will run automatically
  2. Vercel preview — a preview deployment will be created (requires maintainer authorization for fork PRs)
  3. 👀 Code review — a maintainer will review your changes
  4. 🚀 Merge — once approved, your PR will be merged!

Quick checklist

  • PR title follows Conventional Commits (e.g. feat: add dark mode)
  • Linked the issue this PR closes (e.g. Closes #123)
  • Tested the changes locally (bun run dev)
  • Build passes (bun run build)

Useful links

Happy coding! 🎉

@github-actions github-actions Bot added the gssoc'26 GirlScript Summer of Code 2026 label May 19, 2026
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Labels

gssoc'26 GirlScript Summer of Code 2026 level:intermediate Intermediate level - 35 pts type:bug Bug fix type:design UI/UX design type:docs Documentation type:feature New feature

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feat: canvas-based live preview — show crop/rotation/color changes instantly

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