modbender Overlay Skill
This skill adds a variety of professional packaging and motion graphics to videos, enhancing their overall quality. It supports both FFmpeg and MoviePy as backend engines and provides a rich set of preset templates and flexible custom parameters.
Core Features
| Feature | Description | Example Use Case |
|---|---|---|
| Intro/Outro | Add an engaging opening or a professional closing. | Brand logo animation, "Thanks for watching" screen. |
| Subtitles/Titles | Overlay static or dynamic text information. | Dialogue subtitles, chapter titles, call-to-action text. |
| Transitions | Create smooth or dynamic transitions between clips. | Fade between scenes, wipe to reveal next shot. |
| Watermark/Borders | Add copyright information or decorative borders. | Channel logo in corner, cinematic black bars. |
| Lower Thirds | Display names, locations, or other info. | Interviewee name and title, location identifier. |
Workflow
To use this skill, the agent follows these general steps:
- Select Feature: Choose one of the five core features based on the user's request.
- Choose Style/Template: Select a preset style from
templates/presets.json(e.g.,modern,cyberpunk,business). - Configure Parameters: Provide the necessary parameters to the appropriate script (e.g., text content, image paths, colors, positions).
- Execute Script: Run the corresponding Python script from the
/scriptsdirectory to generate the effect. - Preview & Deliver: The final video is generated and presented to the user.
Usage Guide (for Agent Development)
This section details the command-line interface for each script, intended for agent developers to understand how to execute the skill's functions.
1. Intro/Outro
Script: add_intro_outro.py
python /home/ubuntu/skills/overlay-skill/scripts/add_intro_outro.py --input <video> --output <video> --type <intro|outro> --text "Your Text" --template <name>
2. Subtitles/Titles
Script: add_subtitles.py
python /home/ubuntu/skills/overlay-skill/scripts/add_subtitles.py --input <video> --output <video> --text "Your Text" --start HH:MM:SS --end HH:MM:SS --style <name>
3. Transitions
Script: add_transition.py
python /home/ubuntu/skills/overlay-skill/scripts/add_transition.py --input1 <video1> --input2 <video2> --output <video> --type <fade|slide|wipe>
4. Watermark/Borders
Script: add_watermark.py
python /home/ubuntu/skills/overlay-skill/scripts/add_watermark.py --input <video> --output <video> --image <image> --position <pos> --border-color <color>
5. Lower Thirds
Script: add_lower_third.py
python /home/ubuntu/skills/overlay-skill/scripts/add_lower_third.py --input <video> --output <video> --title "Title" --subtitle "Subtitle" --template <name>
Resources
/scripts/: Contains the Python implementation code for all features./templates/presets.json: A JSON file containing preset styles for intros, subtitles, and lower thirds./references/ffmpeg_moviepy_cheatsheet.md: A cheatsheet with common commands and tips for FFmpeg and MoviePy.