Animated screenshot for github PRs

mov2gif

#!/bin/sh

# Convert movie (screencast) to lofi animated gif for embedding in github PR's, emails etc.
#
# Requires: ffmpeg, gifsicle
# Screencasts are easily captured in Quicktime Player: File > New screen recording

if [ -z "$1" ]
  then
    echo "Usage: mov2gif input.mov 700 > output.gif"
    echo "Second argument is gif max width in pixels, defaults to 600"
    exit 1
fi

ffmpeg -i $1 -vf scale=${2:-600}:-1 -pix_fmt rgb24 -r 10 -f gif - | gifsicle --optimize=3 --delay=8