{
  "method": "Read visible output source-frame counter, select matching generated reference and marked-source decoded frame; visual comparison only, no inferred pixel-error metric",
  "samples": [
    {
      "playbackSecond": 1,
      "sourceFrame": 6,
      "sourceSecond": 0.25
    },
    {
      "playbackSecond": 2,
      "sourceFrame": 30,
      "sourceSecond": 1.25
    },
    {
      "playbackSecond": 3,
      "sourceFrame": 54,
      "sourceSecond": 2.25
    }
  ],
  "image": {
    "bytes": 85720,
    "pixels": [
      1530,
      1060
    ]
  }
}