media-processing

name	media-processing
description	Process multimedia files with FFmpeg (video/audio encoding, conversion, streaming, filtering, hardware acceleration), ImageMagick (image manipulation, format conversion, batch processing, effects, composition), and RMBG (AI-powered background removal). Use when converting media formats, encoding videos with specific codecs (H.264, H.265, VP9), resizing/cropping images, removing backgrounds from images, extracting audio from video, applying filters and effects, optimizing file sizes, creating streaming manifests (HLS/DASH), generating thumbnails, batch processing images, creating composite images, or implementing media processing pipelines. Supports 100+ formats, hardware acceleration (NVENC, QSV), and complex filtergraphs.
license	MIT

Media Processing Skill

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

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)
• -preset slow - Speed/compression balance
• -c:a aac - Audio codec

ImageMagick:

• 800x600 - Fit within (maintains aspect)
• 800x600^ - Fill (may crop)
• -quality 85 - JPEG quality
• -strip - Remove metadata

RMBG:

• -m briaai - High quality model
• -m u2netp - Fast model
• -r 4096 - Max resolution

References

Detailed guides in references/:

• ffmpeg-encoding.md - Codecs, quality, hardware acceleration
• ffmpeg-streaming.md - HLS/DASH, live streaming
• ffmpeg-filters.md - Filters, complex filtergraphs
• imagemagick-editing.md - Effects, transformations
• imagemagick-batch.md - Batch processing, parallel ops
• rmbg-background-removal.md - AI models, CLI usage
• common-workflows.md - Video optimization, responsive images, GIF creation
• troubleshooting.md - Error fixes, performance tips
• format-compatibility.md - Format support, codec recommendations