modbender Video News Downloader with AI Subtitle Proofreading
Complete workflow for downloading daily news videos, processing subtitles, and serving them via HTTP with web players.
Overview
This skill automates:
- Video Download: CBS Evening News + BBC News at Ten from YouTube
- Subtitle Processing: Extract auto-captions and convert to VTT format
- AI Proofreading: Use DeepSeek to fix speech recognition errors
- HTTP Streaming: Serve videos with embedded web players
- Scheduled Updates: Daily cron jobs at configurable times
Quick Start
1. Download Latest News
python3 scripts/video_download.py --cbs --bbc
2. Proofread Subtitles
python3 scripts/subtitle_proofreader.py /path/to/subtitle.vtt
Or use DeepSeek directly:
"校对字幕文件 /path/to/subtitle.vtt"
3. Start HTTP Servers
bash scripts/setup_server.sh
4. Setup Daily Cron Jobs
bash scripts/setup_cron.sh
Commands
Video Download Script
Download CBS only:
python3 scripts/video_download.py --cbs
Download BBC only:
python3 scripts/video_download.py --bbc
Download both:
python3 scripts/video_download.py --cbs --bbc
With subtitle proofreading:
python3 scripts/video_download.py --cbs --bbc --proofread
Subtitle Proofreading
Proofread single file:
python3 scripts/subtitle_proofreader.py <vtt_file_path>
Auto-proofread all news subtitles:
python3 scripts/subtitle_proofreader.py --all
Server Management
Start servers:
bash scripts/setup_server.sh start
Check status:
bash scripts/setup_server.sh status
Stop servers:
bash scripts/setup_server.sh stop
File Structure
/workspace/
├── cbs-live-local/
│ ├── cbs_latest.mp4
│ ├── cbs_latest.en.vtt # Original subtitle
│ ├── cbs_latest.en.vtt-backup # Backup
│ ├── cbs_latest-corrected.txt # DeepSeek corrected text
│ └── cbs_latest-corrections.md # Error list
│
├── bbc-news-live/
│ ├── bbc_news_latest.mp4
│ ├── bbc_news_latest.en.vtt
│ ├── bbc_news_latest.en.vtt-backup
│ ├── bbc_news_latest-corrected.txt
│ └── bbc_news_latest-corrections.md
│
└── temp/ # Temporary download files
HTTP Endpoints
| Endpoint | Description |
|---|---|
| http://IP:8093/ | CBS Evening News player |
| http://IP:8093/cbs_latest.mp4 | CBS video direct |
| http://IP:8095/ | BBC News at Ten player |
| http://IP:8095/bbc_news_latest.mp4 | BBC video direct |
Cron Jobs
Default Schedule (Beijing Time)
| Time | Task |
|---|---|
| 20:00 | Download latest CBS + BBC videos |
| 20:30 | DeepSeek proofread subtitles |
Manual Cron Setup
See references/cron-setup.md for detailed cron configuration.
DeepSeek Proofreading
What Gets Fixed
- Speech recognition errors (e.g., "noraster" → "nor'easter")
- Name errors (e.g., "trunk" → "Trump")
- Location name errors
- Professional terminology errors
- Obvious spelling mistakes
Output Files
For each subtitle file, generates:
-backup.vtt- Original subtitle (never modified)-corrected.txt- AI-corrected plain text-corrections.md- List of corrections made
Troubleshooting
Video Download Fails
- Check yt-dlp is installed:
yt-dlp --version - Check YouTube URL is accessible
- Try manual download first
Subtitle Extraction Fails
- Some videos don't have auto-captions
- Check if
--list-subsshows available languages
Server Won't Start
- Check ports 8093/8095 are free:
lsof -i :8093 - Check Python http.server is available
Proofreading Issues
- Ensure DeepSeek model is available
- Check subtitle file exists and is valid VTT format
See Also
- references/workflow.md - Detailed workflow documentation
- references/cron-setup.md - Cron job configuration guide