ffmpeg-llm

An FFmpeg plugin for Claude Code. Describe what you want, get the command.

A specialized ffmpeg plugin for when a general-purpose LLM isn't accurate enough. Use it to make Claude Code more reliable with ffmpeg. A few things it handles well:

Files QuickTime can open
Frame-accurate cuts at the timestamp you asked for
HLS and DASH streams ready for the web

Install

Inside Claude Code:

/plugin marketplace add rendi-api/ffmpeg-llm
/plugin install ffmpeg-llm@rendi-official

The first command registers this repo as a plugin marketplace; the second installs the plugin from it.

Quick start

With the plugin loaded, describe what you want in plain English:

"burn the subtitles from sample.srt using Poppins 24pt"

"high-quality GIF from clip.mp4, max 640px wide"

"package input.mp4 as HLS VOD for a CDN"

Or use the slash command:

/ffmpeg scale to 1080x1920 with black bars, web-optimized

For more complicated jobs (a filtergraph that won't compile, an encode that breaks on a real phone), Claude hands off to the ffmpeg-expert subagent.

You describe the goal. Claude picks the flags.

No more researching fast vs frame-accurate seek or quality-first vs size-first GIF. Tell Claude what you actually care about ("smallest file", "plays on iPhone", "frame-accurate cut at 0:14") and the right approach falls out.

Covers transcoding, remuxing, trimming, filter graphs, audio, subtitles, GIFs, HLS/DASH, GPU encoding (NVENC/QSV/VAAPI).

Handles the common gotchas

Two-dozen FFmpeg pitfalls are baked into the skills. A few:

setpts=PTS-STARTPTS after trim for clean concat timing
FontName= in subtitle filters uses the font's internal PostScript name
amix uses both duration=shortest and the output flag -shortest for matched track lengths
fps/setsar=1/format=yuv420p to normalize stream parameters before concat
-fps_mode passthrough as the current frame-rate pass-through syntax
yadif for clean deinterlacing of old AVI/WMV captures, including ones the metadata labels progressive

License

MIT

Help us improve

Find plugins for your project

Help us improve

ffmpeg-llm

Popularity

What's Inside

README

ffmpeg-llm

Install

Quick start

You describe the goal. Claude picks the flags.

Handles the common gotchas

License

Help us improve

Health & Quality

Confidence

Similar Plugins

ffmpeg

ffmpeg-master

frame-inspect

multimedia

capcut-cli

embed-subtitles