arch-video-cut（拱门视频剪辑）

arch-video-cut

Automatic Architecture Video Editing Workflow with Self-Learning Preferences

Description

Automatically complete the full architecture video editing workflow: multi-video merging, speech-to-text subtitles, background music mixing, and dual output (landscape + portrait). Built-in self-learning system remembers your editing preferences.

Core Features:

• 🎬 Auto merge multiple videos + duration compression
• 🎙️ Speech transcription or custom subtitles
• 🎵 Smart background music generation + mixing
• 📱 Dual output: landscape (16:9) + portrait (3:4)
• 🧠 Self-evolving preference system

Usage

Quick Start

cd ~/.openclaw/workspace/skills/arch-video-cut
python3 scripts/full_workflow.py

Prerequisites

1. Install dependencies:

brew install ffmpeg-full  # Required for libass subtitle support
pip3 install faster-whisper  # Optional: for speech transcription

1. Prepare materials:

• Audio file: ~/Desktop/新录音 XX.m4a (narration voiceover)
• Video folder: data/m1/ (architecture video clips to merge)

1. Configure preferences (optional):

python3 scripts/manage_preferences.py set

Commands

Configuration

Preferences

Edit config/user_preferences.json or run manage_preferences.py set:

{
  "video": {
    "target_duration": 20.0,      // Target duration in seconds
    "vertical_format": "3:4",     // Portrait aspect ratio
    "vertical_resolution": "1080x1440"
  },
  "subtitles": {
    "horizontal_font_size": 14,   // Landscape font size (px)
    "vertical_font_size": 10,     // Portrait font size (px)
    "font_name": "STHeiti",       // Font family
    "auto_wrap": true,            // Auto word wrap
    "margin_v": 30                // Bottom margin (px)
  },
  "audio": {
    "background_music_volume": 0.15,  // BGM volume (0-1)
    "fade_in_duration": 2,            // Fade-in duration (sec)
    "fade_out_duration": 2            // Fade-out duration (sec)
  }
}

Custom Subtitles

Edit the subtitles_text array in transcribe_audio() function:

subtitles_text = [
    "These six renovation projects were transformed from abandoned schools",
    "Historic buildings, red brick houses, tile-roof homes, single-story factories, and rural self-built houses",
    "Through minimalist design approaches and low-cost renovation strategies",
    "Giving old buildings new life",
    "While balancing contemporary aesthetics and market demands",
]

Output

Output location: data/ folder

Example output:

✅ All done!
📁 Output: data/edited_video_final_with_subtitles.mp4
📊 Size: 16.0MB
🎬 Duration: 20.04 seconds

Workflow

1. Merge videos → Compress to target duration
2. Generate subtitles → Allocate timeline based on audio duration
3. Generate BGM → Piano chords + fade in/out
4. Mix audio → Voiceover + background music
5. Burn subtitles → Landscape + Portrait versions

Total processing time: ~2-3 minutes (depends on video count and duration)

Self-Learning

Built-in preference learning system automatically records your editing habits:

• 📝 Saves configuration after each edit
• 📊 Keeps last 20 adjustment records
• 🔄 Auto-applies preferences on next run
• 🎛️ Modify anytime via manage_preferences.py

View learning history:

python3 scripts/manage_preferences.py show

Examples

Example 1: Quick Edit

# Place 5 video clips in data/m1/
# Place voiceover audio at ~/Desktop/新录音 74.m4a
cd ~/.openclaw/workspace/skills/arch-video-cut
python3 scripts/full_workflow.py

Example 2: Adjust Font Size

# Interactive modification
python3 scripts/manage_preferences.py set
# Input: horizontal font size 18px

# Re-edit with new font automatically applied
python3 scripts/full_workflow.py

Example 3: Create 30-Second Version

# Modify preference
python3 scripts/manage_preferences.py set
# Input: target duration 30 seconds

# Edit
python3 scripts/full_workflow.py

Troubleshooting

❌ ffmpeg-full not found

brew install ffmpeg-full  # Required for libass subtitle support

❌ Subtitles not showing

Check if ffmpeg-full is installed (system ffmpeg doesn't support libass)

❌ Transcription failed

pip3 install faster-whisper
# Or skip transcription and edit subtitle text directly in script

❌ Wrong video aspect ratio

Modify vertical_format in config/user_preferences.json

Files

arch-video-cut/
├── SKILL.md                    # This file
├── SELF_LEARNING_GUIDE.md      # Self-learning detailed guide
├── README.md                   # Quick start guide
├── config/
│   └── user_preferences.json   # User preferences
├── scripts/
│   ├── full_workflow.py        # Main editing script
│   ├── preference_learner.py   # Preference learner
│   └── manage_preferences.py   # Preference manager
└── data/
    ├── m1/                     # Input video folder
    ├── temp_edit/              # Temporary files
    └── *.mp4                   # Output videos

Version

v1.0.0 - 2026-03-18

• ✅ Multi-video merge + duration compression
• ✅ Custom subtitle text
• ✅ Background music generation + mixing
• ✅ Landscape + Portrait dual output
• ✅ Self-evolving preference system

Author

WildUrban Architect - Linwangming

Website: http://www.ual-studio.com/

_Make tools adapt to you, not you to tools._ 🧠