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Install in OpenClaw
/install mp4-to-gif
Description
Use when the user wants to convert MP4 video files to GIF format, or asks about video-to-GIF conversion with quality/size control
README (SKILL.md)
MP4 to GIF Conversion
Overview
Convert MP4 videos to high-quality GIFs using ffmpeg's two-pass palette method. The two-pass approach produces significantly better color quality than direct conversion.
When to Use
- User wants to convert MP4 (or other video) to GIF
- User needs to create GIFs from video for documentation, demos, or sharing
- User asks about reducing GIF file size or improving GIF quality
Prerequisites
- ffmpeg must be installed and available in PATH
Core Method
Two-pass palette-based conversion (always use this over single-pass):
# Pass 1: Generate optimized palette
ffmpeg -y -i \x3Cinput> -vf "fps=15,scale=480:-1:flags=lanczos,palettegen=stats_mode=diff" /tmp/palette.png
# Pass 2: Convert using palette
ffmpeg -y -i \x3Cinput> -i /tmp/palette.png -lavfi "fps=15,scale=480:-1:flags=lanczos [x]; [x][1:v] paletteuse=dither=bayer:bayer_scale=5:diff_mode=rectangle" \x3Coutput>
Quick Reference
| Parameter | Default | Effect |
|---|---|---|
fps |
15 | Frame rate — lower = smaller file, choppier motion |
scale width |
480 | Output width in px — height auto-calculated (-1) |
lanczos |
— | High-quality downscaling filter |
stats_mode=diff |
— | Palette optimized for frame differences (better for motion) |
dither=bayer |
— | Ordered dithering, good balance of quality/size |
bayer_scale |
5 | Dither strength (0-5), higher = more dithering |
diff_mode=rectangle |
— | Only update changed regions (smaller file) |
Size vs Quality Tradeoffs
| Goal | Adjust |
|---|---|
| Smaller file | Lower fps (10), smaller width (320), or trim duration |
| Smoother motion | Higher fps (24-30), but file size increases significantly |
| Better colors | Use stats_mode=full for static/slow content |
| Sharper | Increase width (640-800), costs more file size |
Bundled Scripts
Two scripts are bundled alongside this SKILL.md. Use the one matching the current platform.
Windows (PowerShell) — mp4_to_gif.ps1:
& "\x3Cthis-skill-dir>/mp4_to_gif.ps1" -InputFile \x3Cinput> # Defaults: 480px, 15fps
& "\x3Cthis-skill-dir>/mp4_to_gif.ps1" -InputFile \x3Cinput> -Width 640 -Fps 20 # Custom settings
& "\x3Cthis-skill-dir>/mp4_to_gif.ps1" -InputFile \x3Cinput> -OutputFile \x3Coutput> # Custom output name
Linux / macOS (Bash) — mp4_to_gif.sh:
bash "\x3Cthis-skill-dir>/mp4_to_gif.sh" -i \x3Cinput> # Defaults: 480px, 15fps
bash "\x3Cthis-skill-dir>/mp4_to_gif.sh" -i \x3Cinput> -w 640 -f 20 # Custom settings
bash "\x3Cthis-skill-dir>/mp4_to_gif.sh" -i \x3Cinput> -o \x3Coutput> # Custom output name
When Claude invokes this skill, resolve \x3Cthis-skill-dir> to the absolute path of the directory containing this SKILL.md.
Common Mistakes
- Single-pass conversion (
ffmpeg -i in.mp4 out.gif) — produces terrible banding and color artifacts. Always use the two-pass palette method. - Too high fps — 30fps GIFs are massive. 15fps is usually sufficient for demos.
- Too wide — 480px is good for most uses. Full 1080p GIFs are impractically large.
- Forgetting to clean up palette — Delete the temporary palette.png after conversion.
Usage Guidance
This skill looks safe for local video-to-GIF conversion. Before using it, make sure ffmpeg is installed from a trusted source and choose the output path carefully because existing GIF files may be overwritten.
Capability Analysis
Type: OpenClaw Skill
Name: mp4-to-gif
Version: 1.0.0
The skill bundle provides a legitimate utility for converting MP4 videos to high-quality GIFs using ffmpeg's two-pass palette method. The included Bash (mp4_to_gif.sh) and PowerShell (mp4_to_gif.ps1) scripts are well-structured, using standard practices for temporary file handling and parameter passing. No indicators of malicious intent, data exfiltration, or prompt injection were found.
Capability Assessment
Purpose & Capability
The SKILL.md and bundled scripts consistently focus on MP4/video-to-GIF conversion using ffmpeg's palette workflow.
Instruction Scope
The conversion commands are user-directed and purpose-aligned, but they use ffmpeg's overwrite flag, so an existing output GIF can be replaced.
Install Mechanism
There is no install spec, but the skill requires ffmpeg to already be installed; the registry requirements do not declare that binary dependency.
Credentials
The scripts read a specified input video, create a temporary palette file, and write a specified or default GIF output; no broad file access or external data transfer is shown.
Persistence & Privilege
No credentials, privileged access, background services, startup hooks, or persistent agent state are present in the artifacts.
How to Use
- Make sure OpenClaw is installed (local or Docker)
- Run the install command in chat:
/install mp4-to-gif - After installation, invoke the skill by name or use
/mp4-to-gif - Provide required inputs per the skill's parameter spec and get structured output
Version History
v1.0.0
- Initial release of the mp4-to-gif skill.
- Provides two-pass, palette-based MP4 to GIF conversion using ffmpeg for high-quality results.
- Includes scripts for Windows (PowerShell) and Linux/macOS (Bash) with customizable parameters.
- Offers detailed guidance on quality/size tradeoffs and optimal settings.
- Highlights common mistakes and best practices for video-to-GIF conversion.
Metadata
Frequently Asked Questions
What is Mp4 To Gif?
Use when the user wants to convert MP4 video files to GIF format, or asks about video-to-GIF conversion with quality/size control. It is an AI Agent Skill for Claude Code / OpenClaw, with 68 downloads so far.
How do I install Mp4 To Gif?
Run "/install mp4-to-gif" in the OpenClaw or Claude Code chat to install it in one step — no extra setup required.
Is Mp4 To Gif free?
Yes, Mp4 To Gif is completely free, licensed under MIT-0. You can download, install and use it at no cost.
Which platforms does Mp4 To Gif support?
Mp4 To Gif is cross-platform and runs anywhere OpenClaw / Claude Code is available (cross-platform).
Who created Mp4 To Gif?
It is built and maintained by ZZLupus (@zzlupus); the current version is v1.0.0.
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