{
  "version": 1,
  "size": 4848040,
  "mtime_ns": 1788718407148913621,
  "duration": 3.909091,
  "note": "No clear motion in 2.0s probes — stills every 2.0s. A short train can sit between them; watch the clip if it looks empty.",
  "suggest": null,
  "frames": [
    {
      "t": 0.0,
      "file": "000_00000.jpg",
      "brightness": 124.62194444444444
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    {
      "t": 2.0,
      "file": "001_00200.jpg",
      "brightness": 130.16972222222222
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    {
      "t": 3.849091,
      "file": "002_00385.jpg",
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}