{
  "id": "C05-N02",
  "title": "同一视频在大屏上发灰，怎样核对全范围与有限范围",
  "schema_version": "1.0",
  "evidence_kind": "合成输入与协议；非现场测试结果",
  "tool_versions": {
    "generator": "Python 3.12.4",
    "ffmpeg": "8.0.1（仅实际媒体生成与解码）"
  },
  "required_delivery": "黑白阶梯样片、文件标记和显示链各设置对照",
  "input": {
    "rgb_steps": [
      0,
      8,
      16,
      24,
      231,
      235,
      243,
      255
    ],
    "file_tag": "unknown",
    "signal_measurement": null
  },
  "expected": {
    "step_count": 8,
    "conclusion": "RGB阶梯测试图，视频范围仍待验证"
  },
  "measurement": null,
  "unmeasured": [
    "实体播放硬件",
    "显示刷新相位",
    "现场拍摄",
    "实际Windows目标机配置"
  ],
  "record_fields": [
    "file_range_tag",
    "player_output",
    "gpu_output",
    "receiver_input",
    "step_rgb",
    "visible",
    "photo_id"
  ]
}