majiayu000/claude-arsenal
xiaohongshu
xiaohongshu
286 148
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Media Processing Skill
media-processing
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 ...
SKILL.md
Full skill instructions
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 accelerationffmpeg-streaming.md- HLS/DASH, live streamingffmpeg-filters.md- Filters, complex filtergraphsimagemagick-editing.md- Effects, transformationsimagemagick-batch.md- Batch processing, parallel opsrmbg-background-removal.md- AI models, CLI usagecommon-workflows.md- Video optimization, responsive images, GIF creationtroubleshooting.md- Error fixes, performance tipsformat-compatibility.md- Format support, codec recommendations
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