ak-media-processing

name	ak:media-processing
description	Process media with FFmpeg (video/audio), ImageMagick (images), RMBG (AI background removal). Use for encoding, format conversion, filters, thumbnails, batch processing, HLS/DASH streaming.
user-invocable	true
when_to_use	Invoke for FFmpeg, ImageMagick, or batch media work.
category	multimedia
keywords	["ffmpeg","imagemagick","video","audio","images"]
license	MIT
argument-hint	[input-file] [operation]
metadata	{"author":"agentkit","version":"1.0.0"}

Media Processing Skill

Process video, audio, and images using FFmpeg, ImageMagick, and RMBG CLI tools.

IMPORTANT: Invoke "the engineer project-organization skill" skill to organize the outputs.

Tool Selection

Task	Tool	Reason
Video encoding/conversion	FFmpeg	Native codec support, streaming
Audio extraction/conversion	FFmpeg	Direct stream manipulation
Image resize/effects	ImageMagick	Optimized for still images
Background removal	RMBG	AI-powered, local processing
Batch images	ImageMagick	mogrify for in-place edits
Video thumbnails	FFmpeg	Frame extraction built-in
GIF creation	FFmpeg/ImageMagick	FFmpeg for video, ImageMagick for images

Installation

# macOS
brew install ffmpeg imagemagick
npm install -g rmbg-cli

# Ubuntu/Debian
sudo apt-get install ffmpeg imagemagick
npm install -g rmbg-cli

# Verify
ffmpeg -version && magick -version && rmbg --version

Essential Commands

# Video: Convert/re-encode
ffmpeg -i input.mkv -c copy output.mp4
ffmpeg -i input.avi -c:v libx264 -crf 22 -c:a aac output.mp4

# Video: Extract audio
ffmpeg -i video.mp4 -vn -c:a copy audio.m4a

# Image: Convert/resize
magick input.png output.jpg
magick input.jpg -resize 800x600 output.jpg

# Image: Batch resize
mogrify -resize 800x -quality 85 *.jpg

# Background removal
rmbg input.jpg                          # Basic (modnet)
rmbg input.jpg -m briaai -o output.png  # High quality
rmbg input.jpg -m u2netp -o output.png  # Fast

Key Parameters

FFmpeg:

• -c:v libx264 - H.264 codec
• -crf 22 - Quality (0-51, lower=better)