Re-encode OSX screen recording mov files to a tenth of their size

encode_x264_screen

#!/bin/bash
# Requires ffmpeg - brew install ffmpeg
if [[ -z "$1" ]]; then
  echo "Usage: $0 Screen\\ Recording\\ at\\ 2021-01-21.mov"
  exit 1
fi
basefilename=$(basename "$1" .mov)
outputname="$basefilename.mp4"

nice ffmpeg \
  -i "$1" \
  -tune animation \
  -c:v libx264 -preset medium -profile:v high -pix_fmt yuv420p -level 4.2 -crf 24 \
  -c:a aac -profile:a aac_main -ab 128k \
  "$outputname"

encode_x264_screen_docker

#!/bin/bash
# Runs ffmpeg in Docker, meaning you don't need to have installed ffmpeg natively
if [[ -z "$1" ]]; then
  echo "Usage: $0 Screen\\ Recording\\ at\\ 2021-01-21.mov"
  exit 1
fi
SRC=$(readlink -f "$1")
basefilename=$(basename "$1" .mov)
outputname="$basefilename.mp4"

docker container run -u 1000 --rm -v "$PWD:/mnt" \
  -v "$SRC:/input.mov:ro" \
  alfg/ffmpeg ffmpeg \
  -i "/input.mov" \
  -tune animation \
  -c:v libx264 -preset medium -profile:v high -pix_fmt yuv420p -level 4.2 -crf 24 \
  -c:a aac -profile:a aac_main -ab 128k \
  "/mnt/$outputname"