{
  "frames": [
    {
      "requested_t": -6.599,
      "actual_t": -6.6
    },
    {
      "requested_t": -3.798,
      "actual_t": -3.8
    },
    {
      "requested_t": -2.299,
      "actual_t": -2.3
    },
    {
      "requested_t": -0.799,
      "actual_t": -0.8000000000000007
    },
    {
      "requested_t": 0.0,
      "actual_t": 0.0
    },
    {
      "requested_t": 1.7,
      "actual_t": 1.6999999999999993
    },
    {
      "requested_t": 2.601,
      "actual_t": 2.5999999999999996
    },
    {
      "requested_t": 3.101,
      "actual_t": 3.0999999999999996
    },
    {
      "requested_t": 9.5,
      "actual_t": 9.5
    }
  ],
  "purpose": "核对原始大正转角与画面直行的明显疑问；后3.1秒日志终止，末段视频右转不强行配对",
  "video_anchor_s": 10.0,
  "note": "使用元数据锚点，不按主观场景判断移动视频；不从未标定画面测算距离或推断路权。"
}