dy-video-to-text

Extract speech-to-text from Douyin (TikTok China) videos, get watermark-free download links, and download videos. Use when user shares a Douyin link, asks to transcribe a Douyin video, wants to download a Douyin video without watermark, or needs to extract text from Chinese short videos.

Douyin Video Processor

Process Douyin (TikTok China) share links: extract video speech to text, get watermark-free download URLs, and download videos locally.

First-Time Setup

Before using any script, install the Python dependencies:

bash

bash scripts/install_deps.sh

This installs requests and dashscope. Only needed once.

Environment Variable

The text extraction feature requires DASHSCOPE_API_KEY from Alibaba Cloud Bailian.

The user must set this before you can call douyin_extract_text.py. If it is not set, tell the user:

To use text extraction, you need an Alibaba Cloud Bailian API key.

1. Go to https://help.aliyun.com/zh/model-studio/get-api-key
2. Create an API key (starts with sk-)
3. Set it: /secrets set DASHSCOPE_API_KEY sk-your-key

The other two scripts (parse and download) do not need any API key.

Available Scripts

1. Parse Video Info (no API key needed)

Extract video metadata (ID, title, watermark-free URL) from a Douyin share link.

bash

python3 scripts/douyin_parse.py "SHARE_LINK"

Input: A Douyin share link or text containing one (e.g. https://v.douyin.com/xxxxx/ or a full share text like "7.29 复制打开抖音... https://v.douyin.com/xxxxx/")

Output: JSON to stdout:

json

{
  "status": "success",
  "video_id": "7345678901234567890",
  "title": "Video title here",
  "download_url": "https://..."
}

When to use: User wants to see video info, or you need the download URL without downloading the file.

---

2. Download Video (no API key needed)

Download a watermark-free video file to local disk.

bash

python3 scripts/douyin_download.py "SHARE_LINK" [output_directory]

Input:

• Arg 1: Douyin share link or text containing one
• Arg 2 (optional): Output directory, defaults to current directory

Output: JSON to stdout:

json

{
  "status": "success",
  "video_id": "7345678901234567890",
  "title": "Video title here",
  "file_path": "/absolute/path/to/video.mp4",
  "size_bytes": 12345678
}

When to use: User asks to download a Douyin video, save a video, or get the actual video file.

---

3. Extract Text from Video (requires DASHSCOPE_API_KEY)

Parse a Douyin share link, then transcribe the video speech to text using Alibaba Cloud ASR.

bash

DASHSCOPE_API_KEY="$DASHSCOPE_API_KEY" python3 scripts/douyin_extract_text.py "SHARE_LINK" [model]

Input:

• Arg 1: Douyin share link or text containing one
• Arg 2 (optional): ASR model name, defaults to paraformer-v2

Output: JSON to stdout:

json

{
  "status": "success",
  "video_id": "7345678901234567890",
  "title": "Video title here",
  "text": "The full transcribed text content from the video..."
}

When to use: User wants to know what's said in a Douyin video, asks to transcribe, extract text, get subtitles, or summarize video content.

Important: Always pass DASHSCOPE_API_KEY as an environment variable in the command. If the key is not set, the script will return an error with setup instructions.

Error Handling

All scripts return JSON even on failure:

json

{
  "status": "error",
  "error": "Human-readable error message"
}

Common errors and what to tell the user:

Error message contains	User-facing guidance
No valid share link	The input doesn't contain a valid Douyin URL. Ask the user to paste the full share link.
Failed to parse video info	The video may be deleted, private, or region-locked. Ask the user to verify the link opens in a browser.
DASHSCOPE_API_KEY.*not set	The API key is missing. Guide the user through setup (see Environment Variable section above).
Transcription failed	ASR API error — the key may be invalid or quota exhausted. Ask the user to check their Alibaba Cloud console.
dashscope package not installed	Run bash scripts/install_deps.sh to install dependencies.

Batch Processing

When the user provides multiple Douyin links, process them sequentially. For each link:

1. Call the appropriate script
2. Parse the JSON output
3. Collect results
4. Present a summary table to the user

For batch text extraction, first parse all links with douyin_parse.py to validate them, then extract text only from the valid ones with douyin_extract_text.py. This avoids wasting API calls on broken links.

Cost Awareness

Script	API Cost	Speed
douyin_parse.py	Free	~1-2s
douyin_download.py	Free	depends on video size
douyin_extract_text.py	Alibaba Cloud ASR (very low cost)	~10-30s

Always prefer douyin_parse.py first when you just need to verify a link or get the download URL.

External Endpoints

Endpoint	Purpose	Data Sent
https://v.douyin.com/*	Resolve Douyin share link redirects	Share URL
https://www.iesdouyin.com/share/video/*	Fetch video page to extract metadata	Video ID
Douyin CDN	Download video file (douyin_download.py only)	None (GET request)
https://dashscope.aliyuncs.com/api/*	Alibaba Cloud ASR (douyin_extract_text.py only)	Video URL + API key

Security & Privacy

• DASHSCOPE_API_KEY is only sent to Alibaba Cloud's official API endpoint (dashscope.aliyuncs.com)
• No data is collected, stored, or transmitted by this skill beyond the API calls listed above
• Downloaded video files are saved only where the user specifies
• No persistent background processes

Trust Statement

By using this skill, Douyin share links are sent to Douyin/ByteDance servers for URL resolution, and video URLs may be sent to Alibaba Cloud (Aliyun) for speech-to-text transcription. Only install this skill if you trust these services.