{
  "cases": [
    {
      "name": "同域合成UTC",
      "comparable": true,
      "difference_seconds": 0.025,
      "reason": "同域合成采样点差"
    },
    {
      "name": "节目timecode与UTC",
      "comparable": false,
      "difference_seconds": null,
      "reason": "时钟域不同或未知"
    },
    {
      "name": "未知时钟",
      "comparable": false,
      "difference_seconds": null,
      "reason": "时钟域不同或未知"
    }
  ],
  "network_latency_measured": false
}