Takes one thumbnail every interval_s (default: 1, 2, 5, 10, 15, 30 or 60 s so th...
https://ton.halowerk.com/v1/scrub-spritesOverview
Takes one thumbnail every interval_s (default: 1, 2, 5, 10, 15, 30 or 60 s so that at most 120 thumbnails result), scales it to the requested width with the display aspect ratio, tiles the thumbnails into sheets of columns x rows with ffmpeg 6.1 (tile filter) and writes a WebVTT track whose cues cover [k*interval, (k+1)*interval) and point to sprite_NNN.jpg#xywh=x,y,w,h (W3C Media Fragments 1.0), optionally prefixed with your CDN path.