{
  "project": "hanxin-cctv",
  "title": "韩信被杀 · 长乐宫钟室（虚构重演）",
  "spec_source": "retro-cctv-video / SKILL.md + 公众号《古代监控视频，这个skill可以一键搞定》",
  "note": "本地等效复刻的后期参数，非原仓库 cctv_post.py 的原生配置格式",
  "output": {
    "width": 854,
    "height": 480,
    "fps": 12,
    "frames": 288,
    "duration_sec": 24.0,
    "video_codec": "h264",
    "pixel_format": "yuv420p",
    "audio_codec": "aac",
    "audio_sample_rate": 48000,
    "audio_content": "程序化电流底噪：白噪 + 50Hz/100Hz 嗡鸣 + 4 处脉冲，无语音无配乐"
  },
  "osd": {
    "layer_size": [854, 480],
    "drawn_at": [427, 240],
    "upscale": "NEAREST x2 → 硬边点阵感",
    "digit_font": "consolab.ttf @10px（等效 VCR OSD Mono 16x24）",
    "cjk_font": "simsun.ttc @10px（等效 GNU Unifont 24x24）",
    "ink": "#D4D4CE",
    "outline": "1px #000000 @ alpha 225",
    "soften_px": 0.45,
    "ghost": "右移 2px，alpha 12%",
    "rule": "只软化字，不动画面",
    "top_left": "前196年 正月  HH:MM:SS",
    "bottom_left": "CAMn 长乐宫·地点"
  },
  "picture": {
    "grayscale": true,
    "contrast": 0.8,
    "brightness": "x0.93 + 3",
    "vignette": "1 - 0.58 * r^1.7",
    "scanline": "隔行 x0.965",
    "sensor_noise": "N(0, 4.2) 每帧重采样",
    "slow_zoom": "0 → 2.8% 每段线性",
    "jitter": "亚像素 sin/cos 抖动",
    "global_blur": false
  },
  "segments": [
    {
      "cam": "CAM1 长乐宫·殿门",
      "start": 0.0, "end": 7.0,
      "time_base": "09:12:04",
      "jumps": [{ "at_local_sec": 3.0, "delta_sec": 2 }],
      "action": "一人在前引路、一人随其后入殿"
    },
    {
      "cam": "CAM2 长乐宫·钟室前厅",
      "start": 7.0, "end": 16.0,
      "time_base": "09:12:17",
      "jumps": [{ "at_local_sec": 5.0, "delta_sec": 4 }],
      "action": "帷幔后有人出来，向中央聚拢"
    },
    {
      "cam": "CAM3 长乐宫·钟室",
      "start": 16.0, "end": 24.0,
      "time_base": "09:12:41",
      "jumps": [{ "at_local_sec": 4.0, "delta_sec": 3 }],
      "action": "人群退向门口，帷幔仍在晃"
    }
  ],
  "glitch": "机位切换前后各 2 帧：横向撕裂 + 电平下压 x0.78",
  "boundaries": [
    "史书未载具体日期与时刻，OSD 日期为示意",
    "关键瞬间未呈现，用信号故障与跳秒代替",
    "未接原仓库 RunningHub / MiniMax H3 / Seedance 生成服务",
    "未使用 VCR OSD Mono 与 GNU Unifont 原字体",
    "未做原 verify 的音轨码流哈希对照，改用全帧解码校验",
    "画面为虚构重演，不具备取证或新闻证据效力"
  ]
}