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[FEATURE] Add Multi-Track Timeline for Video, Audio, and Overlay Clips #1512

@jayesh-durge

Description

@jayesh-durge

📝 Description

Reframe currently supports only single-clip editing. Users cannot combine multiple video segments, audio tracks (music/voiceover), images, or overlays in one project. This limits the ability to create multi-scene or professional-level edits.


🎯 Expected Behavior

Users should be able to:

  • Add multiple video clips in one project
  • Use separate audio tracks (music, voiceover, effects)
  • Add image/text overlays
  • Arrange and preview clips on a timeline
  • Trim, move, and reorder clips via drag & drop
  • Scrub playback with timeline sync
  • Work with multiple tracks together

💡 Proposed Solution

Introduce a multi-track timeline (NLE-style) similar to tools like Premiere Pro or DaVinci Resolve.


🧱 Timeline Structure

Bottom timeline with layered tracks:

  • Video tracks
  • Audio tracks
  • Overlay/image tracks
  • Text tracks

Each asset should be a draggable block.


🎛️ Core Features

  • Drag to reposition clips
  • Resize to trim duration
  • Move between tracks
  • Delete/select clips
  • Snap-based alignment

▶️ Playback Sync

  • Playhead follows playback
  • Supports scrubbing
  • Fully synced preview + timeline

📂 Asset Panel

Upload and manage:

  • Videos
  • Audio
  • Images

Before placing on timeline.


🚀 Impact

Enables:

  • Multi-clip editing
  • Audio layering
  • Overlays & text editing
  • Professional editing workflow

🙋‍♂️ Contribution Request

I’d like to work on this under GSSoC'26. Please assign this issue to me.

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