Tiles a gif and then overlays it over a static image.

sparkle.sh

#!/bin/bash

#tiles a gif and then overlays it over a static image. Only tested with jpgs and pngs on Ubuntu 14.04

#usage: ./sparkle.sh sparklegif.gif /directory/of/images/ (use the full location path)

sparklegif=$1
imagedirectory=$2

#create a large tile of the looping gif. It needs to be larger than the input static image, so "-scale" the $sparklegif if necessary or change the viewport value
convert $sparklegif -coalesce -virtual-pixel tile -set option:distort:viewport 1000x1000 -distort SRT 0 sparklegif_temp.gif

for image in "$imagedirectory"*
do
	#get path of file
	path=$( readlink -f "$( dirname "$image" )" )

	#get filename minus extension
	file=$(basename "$image")
	filename="${file%.*}"

	#get extension
	extension="${image##*.}"

	convert "$image" null: sparklegif_temp.gif -layers Composite "$path"/"$filename"_sparkle.gif

done

rm sparklegif_temp.gif

sparkle_video.sh

#!/bin/bash

#$1 is an input gif
#$2 is folder full of jps

#usage ./sparkle_video.sh animation.gif /path/to/folder/of/jpgs
#this will overlay the specified gif onto a static image and make it into an avi video

mkdir finished
rm *.avi
for image in $2
do
	#combine an image with the animated gif
	convert "$image" null: $1 -layers Composite output.jpg

	for file in output*.jpg
	do

	#number of times to duplicate the file (between 1 and 6)
	number=1
	while [ $number -le 4 ]
	do

			#get path of file
			path=$( readlink -f "$( dirname "$file" )" )

			#get filename minus extension
			file=$(basename "$file")
			filename="${file%.*}"

			#get extension
			extension="${file##*.}"

			#copy the file to a new file
			cp $file "$path"/"$filename"_"$number".$extension

			number=`expr $number + 1`

		done
	done
	
	a=1
	for i in *.jpg; do
		  new=$(printf "abcd_%04d.jpg" ${a}) #04 pad to length of 4
		  mv ${i} ${new}
		  let a=a+1
		done
		avconv -i abcd_%04d.jpg -y 8x_temp.avi

		mv *.avi finished/	
	done