media

Media processing = ffmpeg + imagemagick + sox.

Atomic Skills

Video

# Convert
ffmpeg -i in.mov -c:v libx264 out.mp4

# Resize
ffmpeg -i in.mp4 -vf scale=1280:-1 out.mp4

# GIF
ffmpeg -i in.mp4 -vf "fps=10,scale=320:-1" out.gif

Audio

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

# Convert
sox in.wav -r 44100 out.wav

Image

# Resize
convert in.png -resize 800x600 out.png

# Format
convert in.png out.jpg

Pipeline

ffmpeg -i in.mp4 -f image2pipe - | convert - -resize 50% out.gif