ffmpeg-cli
Comprehensive video/audio processing with FFmpeg. Use for: (1) Video transcoding and format conversion, (2) Cutting and merging clips, (3) Audio extraction and manipulation, (4) Thumbnail and GIF generation, (5) Resolution scaling and quality adjustment, (6) Adding subtitles or watermarks, (7) Speed adjustment (slow/fast motion), (8) Color correction and filters.
Best use case
ffmpeg-cli is best used when you need a repeatable AI agent workflow instead of a one-off prompt.
Comprehensive video/audio processing with FFmpeg. Use for: (1) Video transcoding and format conversion, (2) Cutting and merging clips, (3) Audio extraction and manipulation, (4) Thumbnail and GIF generation, (5) Resolution scaling and quality adjustment, (6) Adding subtitles or watermarks, (7) Speed adjustment (slow/fast motion), (8) Color correction and filters.
Teams using ffmpeg-cli should expect a more consistent output, faster repeated execution, less prompt rewriting.
When to use this skill
- You want a reusable workflow that can be run more than once with consistent structure.
When not to use this skill
- You only need a quick one-off answer and do not need a reusable workflow.
- You cannot install or maintain the underlying files, dependencies, or repository context.
Installation
Claude Code / Cursor / Codex
Manual Installation
- Download SKILL.md from GitHub
- Place it in
.claude/skills/ffmpeg-cli/SKILL.mdinside your project - Restart your AI agent — it will auto-discover the skill
How ffmpeg-cli Compares
| Feature / Agent | ffmpeg-cli | Standard Approach |
|---|---|---|
| Platform Support | Not specified | Limited / Varies |
| Context Awareness | High | Baseline |
| Installation Complexity | Unknown | N/A |
Frequently Asked Questions
What does this skill do?
Comprehensive video/audio processing with FFmpeg. Use for: (1) Video transcoding and format conversion, (2) Cutting and merging clips, (3) Audio extraction and manipulation, (4) Thumbnail and GIF generation, (5) Resolution scaling and quality adjustment, (6) Adding subtitles or watermarks, (7) Speed adjustment (slow/fast motion), (8) Color correction and filters.
Where can I find the source code?
You can find the source code on GitHub using the link provided at the top of the page.
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SKILL.md Source
# FFmpeg CLI
## Quick Reference
| Task | Command |
|------|---------|
| Cut video | `{baseDir}/scripts/cut.sh -i <input> -s <start> -e <end> -o <output>` |
| Merge clips | `{baseDir}/scripts/merge.sh -o <output> <file1> <file2> ...` |
| Extract audio | `{baseDir}/scripts/extract-audio.sh -i <video> -o <output.mp3>` |
| Generate thumbnail | `{baseDir}/scripts/thumb.sh -i <video> -t <timestamp> -o <out.jpg>` |
| Create GIF | `{baseDir}/scripts/gif.sh -i <video> -s <start> -e <end> -o <out.gif>` |
| Convert format | `{baseDir}/scripts/convert.sh -i <input> -o <output.mp4>` |
| Change speed | `{baseDir}/scripts/speed.sh -i <input> -r <0.5-2.0> -o <output>` |
| Add watermark | `{baseDir}/scripts/watermark.sh -i <video> -w <image> -o <output>` |
## Scripts
### cut.sh - Cut video segment
```bash
{baseDir}/scripts/cut.sh -i video.mp4 -s 00:01:30 -e 00:02:45 -o clip.mp4
```
### merge.sh - Concatenate videos
```bash
{baseDir}/scripts/merge.sh -o merged.mp4 part1.mp4 part2.mp4 part3.mp4
```
### extract-audio.sh - Pull audio track
```bash
{baseDir}/scripts/extract-audio.sh -i video.mp4 -o audio.mp3
```
### thumb.sh - Extract frame as image
```bash
{baseDir}/scripts/thumb.sh -i video.mp4 -t 00:00:15 -o frame.jpg
```
### gif.sh - Convert clip to GIF
```bash
{baseDir}/scripts/gif.sh -i video.mp4 -s 00:00:10 -e 00:00:15 -o clip.gif
```
### convert.sh - Transcode to new format
```bash
{baseDir}/scripts/convert.sh -i input.avi -o output.mp4
```
### speed.sh - Adjust playback speed
```bash
{baseDir}/scripts/speed.sh -i video.mp4 -r 2.0 -o fast.mp4 # 2x speed
{baseDir}/scripts/speed.sh -i video.mp4 -r 0.5 -o slow.mp4 # 0.5x speed
```
### watermark.sh - Overlay image watermark
```bash
{baseDir}/scripts/watermark.sh -i video.mp4 -w logo.png -o output.mp4
```
## Notes
- All scripts support common video formats (mp4, avi, mov, mkv, webm, etc.)
- Output quality is optimized for balanced file size and clarity
- Use `-h` or no args to see script usageRelated Skills
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