• Show time tooltip while moving mouse across timeline
• mouse drag to move the in/out cutpoint Feature request: use mouse drag to set the in/out cutpoint #517
• mouse drag to move segment around on timeline (while keeping its duration)
• Timeline select
  As one can easily click on a segment, is there need for the next/previous buttons under timeline? Or can those buttons be moved under the seek buttons, together with start/end set and Add new segment, like this
  [Add] [<-] [->] [Prev] [Next] [Discard] (from Segment panel and timeline improvements #432)
• Segment colour scheme generate results in poor contrast ratio #1199

Zooming / scrubbing

• Time as an unit of zoom Time as an unit of zoom #1154
• Add a scroll bar after zoom in timeline Add a scroll bar after zoom in timeline #532
• Right click dragging to move zoomed timeline Right click dragging to move zoomed timeline #369
• For videos where only keyframes can be edit points, mode for snapping to nearest keyframe Fine scrubbing or similar for precise edit points #1287 Warn user if they try to cut between keyframes #516

Fine scrubbing

• Temporary timeline zoom using a modifier key or tool Fine scrubbing or similar for precise edit points #1287
• Temporary timeline zoom when click-holding or click-dragging in the timeline Fine scrubbing or similar for precise edit points #1287
• Popup/tooltip zoomed timeline segment with click-hold/drag in timeline. Click outside of it to dismiss Fine scrubbing or similar for precise edit points #1287

Thumbnails

• Show little thumbnail tooltip picture over the playhead while moving the mouse across the timeline (scrubbing, like IINA player / youtube)
• OR: show the preview in the actual player while moving mouse Timeline scrubbing without having to hold left click. i.e. toggle #2787
• OR: Any of the methods highlighted in this Swifter video.
• OR: Displaying the timeline as a set of stills and skimming like in iMovie or Final cut.
• OR: 1 pixel width thumbnails Better video visualisation on the timeline #2487
• Change density of thumbnails Improve thumbnails #624
• Don't overlap timeline / Show thumbs when hovering across playhead thumbnail preview overlaying timeline #489

Look into this code:

await execa('ffmpeg', [
  '-skip_frame', 'nokey', // only keyframes. much faster
  '-i', inputPath,
  // but only 1 keyframe every `interval`
  '-vf', `fps=1/${interval},${getScaleFilter(qualityParameters.video.totalPixels)}`,
  '-vsync', 'vfr',
  '-q:v', quality, // 1 = best quality, largest file, 31 = worst quality, smallest file. Typical good values: 2–5
  '-frames:v', String(maxFrames),
  outputPath,
]);

Batch list preview

• live thumbnail in batch list files Hover Scrubbing and Quick Selection (like in FCX) #1419
  • click-drag to define segments Hover Scrubbing and Quick Selection (like in FCX) #1419 (comment)

Multi-timelines

• Have one or more .llc projects visible at the same time on the timeline (for a single media file), and be able to move segments between timelines Multiple segment timelines for different cuts, or other purpose like chapters, subtitles.. #2097