Create an Android bootanimation from a YouTube video

youtube-to-bootanimation.sh

#!/bin/bash
#
# youtube-to-bootanimation.sh - Download & create Android boot animations from YouTube videos
#
# author: Jared Rummler <[email protected]>
#

# Replace URL with any YouTube link
url="https://www.youtube.com/watch?v=Ynm6Vgyzah4"
# Set the frames per second for the boot animation
fps=30
# where the bootanimation will be created
tmp=~/Desktop/temp
out=~/Desktop/temp/temp.mp4

# delete the directory if it currently exists
rm -rf $tmp

# create the directory
mkdir -p $tmp

# Use youtube-dl to download the video
# https://github.com/rg3/youtube-dl
youtube-dl -o $out $url

# Make the directory for the frames to be extracted to
mkdir -p $tmp/part0

# Use ffmpeg to extract frames from the video
# https://trac.ffmpeg.org/wiki/UbuntuCompilationGuide
ffmpeg -i $out $tmp/part0/00%05d.jpg

# Use ImageMagick to get the width and height of the first image
# http://www.imagemagick.org/
size=`identify -format '%w %h' $tmp/part0/0000001.jpg`

# Create the desc.txt file
echo "$size $fps" > $tmp/desc.txt
echo "p 1 0 part0" >> $tmp/desc.txt

# Create the bootanimation
cd $tmp
zip -0r bootanimation part0 desc.txt

# Remove the downloaded video
rm $out

# Remove desc.txt
rm $tmp/desc.txt

# Create a GIF of the bootanimation
# fps = 1/(delay in seconds) = 100/(delay ticks)
delay=`echo "scale=2; 100/${fps}" | bc`
echo "Creating animated GIF..."
convert -delay $delay -loop 0 $tmp/part0/*.jpg -resize 300x -layers optimize $tmp/animation.gif

# Remove the folder with the images
echo "Cleaning up..."
rm -rf $tmp/part0

echo "Finished! Your boot animation is at $tmp/bootanimation.zip"

This is awesome, thank you! Is it possible to revert play the second part (the looping part) ?

for example:

part1/ (looping forwards then backwards)
Image00140.jpg
...
Image00220.jpg
...
Image00140.jpg

Im manage to add aria2 Hope it work nice now! source here:- GIST