视频处理

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分析视频场景结构，提取关键帧和场景切片，检测静音段

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How to use this skill

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Prompt to paste

I want to install this Agent Skill for this project in Codex.

Source SKILL.md: https://github.com/tuyoogame/tyclaw.rs/blob/HEAD/workspace/skills/ops/video-analyzer/SKILL.md

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视频处理

基础视频处理工具：场景检测、关键帧提取、场景切片、静音检测。

工具用法

# 处理本地视频文件
python skills/ops/video-analyzer/tool.py /path/to/video.mp4

# 处理 URL（YouTube/Bilibili/抖音）
python skills/ops/video-analyzer/tool.py "https://www.bilibili.com/video/BVxxxxx"

# 调整场景灵敏度（越小越敏感，默认 27.0）
python skills/ops/video-analyzer/tool.py video.mp4 --threshold 20

# 限制最大场景数（默认 30，超出自动降低灵敏度）
python skills/ops/video-analyzer/tool.py video.mp4 --max-scenes 15

# 调整帧图宽度（默认 960px，0 = 原始分辨率）
python skills/ops/video-analyzer/tool.py video.mp4 --frame-width 720

参数

参数	说明	默认值
`video`	视频文件路径或 URL	必填
`--threshold`	场景检测灵敏度（越小越敏感）	27.0
`--max-scenes`	最大场景数（超出自动提高阈值）	30
`--frame-width`	关键帧最大宽度像素（0=原始）	960
`--output-dir`	覆盖输出目录	自动生成

输出

输出到 /tmp/tyclaw_{staff_id}_{timestamp}_video-analyzer/：

frames/          关键帧图片（scene_001.jpg, scene_002.jpg, ...）
scenes/          场景切片视频（scene_001.mp4, scene_002.mp4, ...）
scenes.json      完整元数据（见下方结构）
video.mp4        源视频文件

scenes.json 结构

{
  "video": {
    "path": "video.mp4",
    "duration": 120.5,
    "resolution": "1920x1080",
    "fps": 30,
    "title": "视频标题",
    "audio": {"codec": "aac", "sample_rate": 44100, "channels": 2}
  },
  "scenes": [
    {
      "id": 1,
      "start": "00:00:00.000",
      "end": "00:00:05.200",
      "duration": 5.2,
      "frame": "frames/scene_001.jpg",
      "clip": "scenes/scene_001.mp4"
    }
  ],
  "silence": [
    {"start": 10.5, "end": 12.3, "duration": 1.8}
  ],
  "scene_count": 12,
  "detection_threshold": 27.0
}

AI 工作流

运行 tool.py 处理视频，获得 scenes.json 和关键帧
读取 scenes.json 了解视频结构（场景数、时长分布、静音段）
查看 frames/ 中的关键帧图片（每次 3-5 张），理解各场景画面内容
根据用户需求回答问题或生成分析报告

工具负责处理和提取，AI 负责理解和分析。如果用户需要特定的评分体系或分类规则，建议用户创建个人 Skill 来定义自己的分析标准。

安全约束

输出路径必须在 /tmp/tyclaw_{staff_id}_ 前缀下
完成后直接输出分析结果
如需发送场景切片或帧图给用户，在 ## 附件文件 段落中列出完整路径