# Ffmpeg Wrapper

> ffmpeg-wrapper

- Skill: `ondrej-merkun/ffmpeg-wrapper` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add ondrej-merkun/ffmpeg-wrapper`
- Raw SKILL.md: https://api.skillmd.com/api/skills/ondrej-merkun/ffmpeg-wrapper/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: ondrej-merkun (https://skillmd.com/u/ondrej-merkun)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/ondrej-merkun/ffmpeg-wrapper

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# ffmpeg-wrapper

Converts and trims video and audio files using the locally installed `ffmpeg` binary.

<ffmpeg-wrapper>
Use this skill to transcode media files. Requires `ffmpeg` to be installed.

Operations:
- `convert <input> <output>` — re-encode to a different format (e.g. mp4 → webm)
- `trim <input> <start> <duration> <output>` — cut a segment (HH:MM:SS format)
- `extract-audio <input> <output.mp3>` — extract the audio track as MP3
- `thumbnail <input> <time> <output.jpg>` — capture a frame as JPEG

All operations are local. No files are uploaded to external services.
</ffmpeg-wrapper>