concat-mp4

name	concat-mp4
description	Concatenate multiple MP4 files in order into a single MP4 using ffmpeg stream copy.
dependencies	["python>=3.11","ffmpeg (cli tool)"]

Concatenate MP4 Files

Join several .mp4 files in sequence without re-encoding (ffmpeg concat demuxer).

Run

.venv/Scripts/python .claude/skills/concat_videos/scripts/concat_videos.py "output.mp4" "clip1.mp4" "clip2.mp4" "clip3.mp4"

Parameters

• Required: output (destination mp4), inputs (>=2 mp4 files, ordered)
• Optional: none

Example

.venv/Scripts/python .claude/skills/concat_videos/scripts/concat_videos.py "./out/combined.mp4" "./out/part1.mp4" "./out/part2.mp4"