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How to cut an interview into a 60-second Reels clip with Ffmpeg Skill

An agent keeps chosen segments of a long interview, fits them to 60 seconds in 9:16 and exports a Reels file.

  • Top pick
  • Content
  • Intermediate
  • 30 minutes
  • From the README
  • Claude Code
  • Cursor
  • Codex

Who it is forA creator or editor with a long interview recording who needs a short vertical clip for Instagram Reels and has no time to edit by hand.

The problemManual trimming, reframing and export for a vertical social clip takes time, and the result is easy to get wrong on duration or aspect ratio.

The outcomeA Reels-ready MP4 that is about 60 seconds, 1080x1920, with a probe and a contact sheet the agent has checked.

What you need first

  • ffmpeg and ffprobe on your PATH (run `npx ffmpeg-skill doctor` to check)
  • python3 on your PATH (on Windows, `python` or the `py` launcher may be needed instead)
  • Node.js, for `npx ffmpeg-skill`
  • A coding agent such as Claude Code, Cursor or Codex, or any MCP client

Steps

  1. Install the skill with npx ffmpeg-skill and check the machine with npx ffmpeg-skill doctor.
  2. Set S=~/.claude/skills/ffmpeg-skill/scripts, then measure the source with python3 $S/probe.py input.mp4 --compact.
  3. Keep the chosen parts with python3 $S/cut.py input.mp4 --segments 0:45-3:10,5:00-6:30. (inferred, check the README)
  4. Preview the fit with python3 $S/fit.py input.mp4 --duration 60 --aspect 9:16 --dry-run, then run it without --dry-run using --fit crop.
  5. Export with python3 $S/export.py input.mp4 --preset reels --json and check the result with check.py --platform reels.

Prompt for your agent

Using the ffmpeg-skill repo, take <interview file> and keep 0:45-3:10 and 5:00-6:30, make it exactly 60 seconds at 9:16 for Reels, and export it. Expected output: a Reels MP4 of about 60 seconds at 1080x1920. Verify the duration and resolution with probe.py before you report it done.

Caveat. The segment times and the 60-second target are your choices, and the skill does not decide which parts of the interview are worth keeping.

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