| name | carocut-planner-analysis |
| description | 视频素材分析与清点。解析 PDF 文档提取文本/图片/表格，组织原始素材目录，生成结构化的 inventory.yaml 素材清单。 |
Material Analysis
Extracts structured content from source materials (PDF, images, videos, audio) and creates an organized inventory for video production planning.
Purpose
Transform user-provided raw materials into structured data that can drive production planning. This step creates the foundation for all subsequent workflow stages.
Supported Input Types
| Type | Extensions | Extraction Method |
|---|
| PDF documents | .pdf | Text blocks, images, tables via material decompose tool |
| Images | .png, .jpg, .jpeg, .webp | Copied to raws/images/existing/ |
| Videos | .mp4, .mov, .webm | Copied to raws/videos/ |
| Audio | .mp3, .wav, .m4a | Copied to raws/audio/ |
| Text | .txt, .md | Read and indexed |
| URL | http/https | Text, images, tables extracted via web crawling |
Output Structure
raws/
images/
existing/ # User-provided images (organized)
crawled/ # Images downloaded from URL
crawled_img_001.jpg
crawled_img_002.png
page_01_img_01.png # Images extracted from PDF
page_02_img_01.png
table_01.png # Table screenshots from PDF
data.json # Structured content from PDF or URL
content.txt # Plain text extraction
inventory.yaml # Complete material inventory
data.json Format
{
"stats": {
"total": 45,
"pages": 12,
"by_type": { "text": 30, "title": 5, "image": 7, "table": 3 }
},
"elements": [
{ "type": "title", "page": 1, "content": "Introduction" },
{ "type": "text", "page": 1, "content": "Text content from this section..." },
{ "type": "image", "page": 1, "path": "images/img_001.png" },
{ "type": "table", "page": 3, "path": "images/table_001.png", "context": {
"before": ["Previous text for context..."],
"after": ["Following text..."]
}}
]
}
inventory.yaml Format
inventory:
source_files:
- name: presentation.pdf
type: pdf
pages: 12
extracted: true
images:
- path: images/page_01_img_01.png
source: presentation.pdf
page: 1
description: "Architecture diagram"
- path: images/existing/logo.png
source: user_provided
description: "Company logo"
text_blocks: 30
tables: 2
total_images: 7
Workflow
digraph material_analysis {
"User provides materials" [shape=doublecircle];
"Create raws/ directory" [shape=box];
"Has PDF?" [shape=diamond];
"Decompose PDF" [shape=box];
"Has URL?" [shape=diamond];
"Crawl URL" [shape=box];
"Organize other files" [shape=box];
"Generate inventory.yaml" [shape=box];
"Report to user" [shape=box];
"Proceed to STEP-2" [shape=doublecircle];
"User provides materials" -> "Create raws/ directory";
"Create raws/ directory" -> "Has PDF?";
"Has PDF?" -> "Decompose PDF" [label="yes"];
"Has PDF?" -> "Has URL?" [label="no"];
"Decompose PDF" -> "Has URL?";
"Has URL?" -> "Crawl URL" [label="yes"];
"Has URL?" -> "Organize other files" [label="no"];
"Crawl URL" -> "Organize other files";
"Organize other files" -> "Generate inventory.yaml";
"Generate inventory.yaml" -> "Report to user";
"Report to user" -> "Proceed to STEP-2";
}
PDF Decomposition Patterns
When decomposing PDFs, the following extraction patterns apply:
- Section titles: Detected by font size changes, bold formatting, or structural patterns (e.g., "Chapter X", numbered headings)
- Images: Extracted at original resolution when possible, saved as
page_{NN}_img_{NN}.png
- Tables: Complex table layouts may not be detected automatically; capture as screenshots saved as
table_{NN}.png
- Figure references: Cross-references between text and images are preserved in data.json section entries
- Text encoding: UTF-8 expected; non-UTF-8 PDFs may produce encoding errors
Manual Organization (When No PDF)
If user provides only images, videos, or other files without a PDF:
-
Create directory structure:
raws/
images/existing/
videos/
audio/
-
Copy files to appropriate directories
-
Create inventory.yaml manually:
inventory:
source_files: []
images:
- path: images/existing/diagram.png
source: user_provided
description: "User-provided diagram"
text_blocks: 0
tables: 0
total_images: 1
Resource Source Definitions
| Source | Description | Availability |
|---|
user_provided | Files directly supplied by the user | Available in raws/images/existing/ |
pdf_extracted | Images and tables extracted from PDF documents | Available after decomposition |
retrieve | Stock images to be fetched from Pexels/Pixabay | Resolved in STEP-4 |
generate | Custom images to be generated via Caro LLM API | Resolved in STEP-4 |
url_crawled | Images downloaded from crawled web pages | Available after crawling |
User Communication
Successful Analysis
材料分析完成。
来源: presentation.pdf (12 页)
提取结果:
文本块: 30
图片: 5
表格: 2
输出目录: raws/
- data.json (结构化内容)
- images/ (7 个文件)
- inventory.yaml (材料清单)
请确认材料是否完整，然后继续下一步。
With User-Provided Files
材料整理完成。
用户提供:
- 3 张图片 -> raws/images/existing/
- 1 个视频 -> raws/videos/
- presentation.pdf (12 页)
PDF 提取结果:
文本块: 30
图片: 5
总计: 9 个可用素材
材料清单: raws/inventory.yaml
请确认后继续。
Common Issues
| Issue | Cause | Solution |
|---|
| PDF images blurry | Low resolution in source PDF | Use higher quality source or request original images |
| Tables not detected | Complex table layout | Extract tables manually as screenshots |
| Text encoding errors | Non-UTF8 PDF encoding | Re-export PDF with UTF-8 encoding |
| Missing sections | Title pattern mismatch | Adjust title detection parameters when invoking decompose tool |
Exit Conditions
- Success: All materials organized, inventory.yaml created, proceed to STEP-2
- Partial: Some materials processed with warnings, user confirms to proceed
- Failure: Critical extraction errors, user must provide alternative materials
File Naming Conventions
- All paths in inventory.yaml are relative to raws/
- Image filenames follow pattern:
page_{NN}_img_{NN}.png
- Table screenshots follow pattern:
table_{NN}.png
- User-provided files go to corresponding
existing/ subdirectories
Incremental Mode
增量模式用于在已有素材库基础上添加新材料，不重新解析已处理的文件。
输入
- dispatch context 中
amendment 字段指定的新素材文件
执行规则
- 读取现有
raws/inventory.yaml，了解已有素材清单
- 仅对新增材料执行解析和组织：
- 新 PDF 文件：执行 decompose，提取内容追加到 data.json
- 新图片/视频/音频：复制到对应目录
- 更新
inventory.yaml，追加新素材条目，保留已有条目不变
- 不重新扫描或验证已有产物
产出
- 更新后的
raws/inventory.yaml
- 新增文件路径摘要
不执行
- 不重新解析已存在的 PDF
- 不重新组织已分类的文件
- 不覆盖 raws/ 中已有的文件
