goestilevideo.sh

goestilevideo.sh

#!/bin/bash

# Usage: ./goestiles ~/goes17 2020-04-02
# Makes a video like this: https://twitter.com/lxe/status/1248117991067095040
# Requirements: imagemagick and ffmpeg

ROOT=$1
DATE=$2

# Clean up
rm -rf timed

# Get timestamps
ls -lart $ROOT/fd/ch08/$DATE | grep -oE '\d+T\d+Z' | while read timestamp; do 
  # Copy all the full disk images at the same time into a directory
  mkdir -p ./timed/${timestamp}/small
  cp -rf $(find $ROOT/fd -type f -name '*'${timestamp}'*' | xargs) ./timed/${timestamp}

  # Resize images and create tiles
  mogrify -resize 480x480 -quality 100 -path ./timed/${timestamp}/small ./timed/${timestamp}/*.jpg
  montage ./timed/${timestamp}/small/* -geometry +0+0 `pwd`/${timestamp}_COMBINED.jpg
done

# Combine all the tiled images into a video
ffmpeg -framerate 8 -pattern_type glob -i './*_COMBINED.jpg' -c:v libx264 -r 30 -pix_fmt yuv420p ${DATE}_video.mp4