v1.6.0

1.6.0 - 2026-08-22

Features

• New Motion (optical flow) frame sampling method, alongside
  "Every N frames" and "Target FPS", in both the GUI and the CLI
  (--extract-method motion). A grid of points is tracked through dense
  DIS optical flow and a keyframe is written only when the camera has
  moved enough: the 80th-percentile cumulative point displacement reaches
  a threshold (--extract-motion-threshold, default 600 px), too few
  tracked points remain in view (--extract-motion-min-points), or a
  maximum frame gap elapses (--extract-motion-max-gap). The first and
  last frames are always kept, and --extract-max-frames thins the
  result evenly. Static stretches of video produce no redundant frames,
  fast pans produce more. Adapted from morishuz/frame-extractor (MIT).
  Closes #1.