Feature Suggestion: “LiveView” mode (Storyboard of I-frames for visual cutting)

[Kikeb]

Hello,

I'd like to suggest a new visual feature for Avidemux that could greatly enhance the editing experience, especially for users working with long videos or visual material that requires intuitive segment removal.

Proposal: A "LiveView" Mode

The idea is to add an optional LiveView (or Storyboard) mode (popup or not) that shows a grid or strip of I-frame thumbnails extracted from the video. Similar visually to lightbox in davinci resolve. The user could:

- Visually browse through the keyframes (I-frames) as miniatures.
- Select one or more segments between I-frames by clicking or dragging.
- Delete those segments visually, with the software performing the equivalent of Ctrl+X internally (without re-encoding).
- Return to the classic timeline view, where the cuts are already applied.

Technical feasibility

This could build on top of:
- The current GOP/keyframe analysis already used by Avidemux.
- The cut logic that handles markA, markB, and cut().
- Thumbnails either generated live (ffmpeg) or cached per session.

Why it matters

This feature would make Avidemux much more user-friendly for non-technical users, and extremely efficient for workflows where previewing and removing scenes quickly is critical — without losing the core principle of lossless editing.

Thanks for considering this suggestion, and for the great work you've done on Avidemux over the years!

Kind regards, 
Kikeb