feat: add real-time preview for video aspect ratios, filter adjustments and rotation

[SatyaViswas]

Description

This PR introduces a complete architectural upgrade to the core video display layer inside src/components/VideoPreview.tsx, enabling a real-time, high-fidelity WYSIWYG (What You See Is What You Get) interface.

Key changes include:

• Dynamic Canvas Crop Mask: Replaced the static, hardcoded rendering boundaries with an absolute percentage positioning system calculated dynamically from active editing parameters. The viewport accurately scales to all dimensions (including vertical configurations like 9:16 / 4:5 and panoramic modes like 47:10) without warping the application dashboard layout.
• Real-Time Transformation Rendering: Bound state parameters for rotation, framing styles (fit vs fill), and micro-level color corrections directly to native hardware-accelerated CSS style overrides on the local player tracking node. Adjusting settings instantly cascades visual feedback onto the workspace preview without requiring an intermediate export cycle.
• Visual Canvas Contrast Isolation: Added a subtle contrast separating border configuration (ring-1 ring-white/10 shadow-2xl bg-black) outlining the dynamic canvas window. This explicitly defines pixel-accurate output frame regions even when manipulating dark source footages that match underlying dark-mode panels.
• Redundant Logic Pruning: Cleaned up obsolete overlay simulation elements and reference states, keeping the presentation layout lightweight, accessible, and performant.

Related Issue

Fixes #867

Type of Contribution

• Bug fix
• New feature
• Documentation update
• GSSoC contribution

Participant Info

• GitHub username: @SatyaViswas
• Contribution level (Beginner/Intermediate/Advanced): Intermediate

Screen Recording

Screen.Recording.2026-05-21.at.11.09.24.PM.mov

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)

[vercel]

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[github-actions]

✅ PR Format Check Passed — @SatyaViswas

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

[github-actions]

👋 Thanks for your PR, @SatyaViswas!

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

• 📖 CONTRIBUTING.md
• 🐛 Open Issues
• ⭐ Star the repo to support the project!

Happy coding! 🎉

[SatyaViswas]

Hey @magic-peach , just to remind, I resolved all conflicts and my PR is upto date with the main branch. Please review and merge my PR!

[SatyaViswas]

Hey @magic-peach. I resolved all the latest conflicts and my PR is upto date with the main branch. Please review and merge my PR!

[SatyaViswas]

Hey @magic-peach , could you please review this PR and close it, so that I could work on new issue!

I also solved the Application error shown in image which occurs when we use adjustment options too many times: