video-breakdown

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视频分镜拆解技能（自包含，无需外部后端）。使用 FFmpeg 预处理视频并生成分镜数据。(1) 视频 URL 直接处理 `python scripts/process_video.py "<video_url>"`；(2) 本地文件先上传 `python scripts/video_upload.py "<file_path>"` 获取 URL 后再处理。需要本机安装 FFmpeg。

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视频分镜拆解 (Video Breakdown)

概述

视频分镜拆解技能通过本机 FFmpeg 将视频自动拆解为逐帧分镜，提供每个镜头的关键帧图片和时间信息。无需外部后端服务。

前置要求

本机安装 FFmpeg：brew install ffmpeg

使用步骤

方式一：视频 URL 直接处理

python scripts/process_video.py "https://example.com/video.mp4"

方式二：本地文件上传后处理

# 1. 上传本地视频到 TOS
python scripts/video_upload.py "/path/to/video.mp4"

# 2. 用返回的 video_url 处理
python scripts/process_video.py "<video_url>"

环境变量

变量名	必需	描述
`FFMPEG_BIN`	否	FFmpeg 路径，默认 `ffmpeg`
`FFPROBE_BIN`	否	FFprobe 路径，默认 `ffprobe`
`VOLCENGINE_ACCESS_KEY`	上传时需要	火山引擎 Access Key
`VOLCENGINE_SECRET_KEY`	上传时需要	火山引擎 Secret Key
`DATABASE_TOS_BUCKET`	否	TOS 存储桶名称
`DATABASE_TOS_REGION`	否	TOS 区域，默认 `cn-beijing`

输出格式

{
  "task_id": "xxx",
  "duration": 30.5,
  "resolution": "1920x1080",
  "segment_count": 12,
  "segments": [
    {
      "index": 1,
      "start": 0.0,
      "end": 3.0,
      "frame_paths": ["path/to/frame.jpg"]
    }
  ]
}

故障排除

问题	解决方案
FFmpeg not found	安装 FFmpeg: `brew install ffmpeg`
上传失败	检查 AK/SK 配置和 TOS 存储桶
视频下载失败	确认 URL 有效且可公开访问