Bulk pictures processing to fit it into a canvas

generate-bootanimation

#!/bin/bash

# Put this file into a folder with PNG pictures with transparent background

# ----- Default values ----- #

ext='.png' # Original pictures have this extension
prefix='frame-' # Final pictures name with this prefix
background='white' # Final pictures background color
padding=100 # Do not fit to max width/height, leave some padding
quality=80 # Final pictures quality
fps=10 # Frames/second speed animation
size='480x800' # Final pictures size
folder='bootanimation' # Folder to store final bootanimation
shuffle='true' # Shuffle files before process
debug='true' # Enable/Disable process messages
verbose='true' # Enable/Disable file processing status
mix='true' # Create a mixed photo with each transition
blur='0x20+0' # For mixed transitions, set the blur effect
max=100 # Max numbers of pictures to use (before MIX process)
gif=5 # Create a final demo gif with X*10 fames (0 to disable and 9 as max)
start='' # Empty to wait start confirmation, y to start without confirmation

# TIPS:

# To get how many pictures that you need to create an animation without repeated pictures,
# check boot time and divide by FPS.

# If you are using MIX option, the you will get the double of original pictures

# Example: boot time is about 22 seconds and fps 10. You need 220 pictures to create
# an animation without repeated pictures

# If you have enabled MIX, you will need 110 pictures because mixed photos will be
# generated automatically and all together are 220 frames

# You can have more pictures that you need in folder and set MAX value to limit pictures
# to use (before MIX process)

# ----- Do not edit from here ----- #

while true; do
    case $1 in
        --start )
            start="$2"

            shift 2
            ;;

        --ext )
            ext=".$2"

            shift 2
            ;;

        --prefix )
            prefix="$2"

            shift 2
            ;;

        --background )
            background="$2"

            shift 2
            ;;

        --padding )
            if [ "`echo $2 | grep -v "^[0-9]\+$"`" != '' ]; then
                echo ''
                echo '--padding value is not valid. Only accept numbers from 1 to 999.'
                echo ''

                exit 2
            fi

            padding="$2"

            shift 2
            ;;

        --quality )
            if [ "`echo $2 | grep -v "^[0-9]\+$"`" != '' ]; then
                echo ''
                echo '--quality value is not valid. Only accept numbers from 1 to 999.'
                echo ''

                exit 2
            fi

            quality="$2"

            shift 2
            ;;

        --fps )
            if [ "`echo $2 | grep -v "^[0-9]\+$"`" != '' ]; then
                echo ''
                echo '--fps value is not valid. Only accept numbers from 1 to 999.'
                echo ''

                exit 2
            fi

            fps="$2"

            shift 2
            ;;

        --folder )
            folder="$2"

            shift 2
            ;;

        --size )
            if [ "`echo $2 | grep -v "^[0-9]\+x[0-9]\+$"`" != '' ]; then
                echo ''
                echo '--size value is not valid. Value format must be like 480x800.'
                echo ''

                exit 2
            fi

            size="$2"

            shift 2
            ;;

        --shuffle )
            if [ "$2" == 'true' ]; then
                shuffle='true'
            else
                shuffle='false'
            fi

            shift 2
            ;;

        --debug )
            if [ "$2" == 'true' ]; then
                debug='true'
            else
                debug='false'
            fi

            shift 2
            ;;

        --verbose )
            if [ "$2" == 'true' ]; then
                verbose='true'
            else
                verbose='false'
            fi

            shift 2
            ;;

        --mix )
            if [ "$2" == 'true' ]; then
                mix='true'
            else
                mix='false'
            fi

            shift 2
            ;;

        --max )
            if [ "`echo $2 | grep -v "^[0-9]\+$"`" != '' ]; then
                echo ''
                echo '--max value is not valid. Only accept numbers from 1 to 999.'
                echo ''

                exit 2
            fi

            max="$2"

            shift 2
            ;;

        --gif )
            if [ "`echo $2 | grep -v "^[0-9]$"`" != '' ]; then
                echo ''
                echo '--gif value is not valid. Only accept numbers from 0 to 9.'
                echo ''

                exit 2
            fi

            gif="$2"

            shift 2
            ;;

        -h | --help )
            echo ''
            echo 'Usage: sh '$(basename $0)
            echo ''
            echo 'Options with default value:'
            echo ''
            echo '--ext .png               Original pictures have this extension'
            echo '--prefix frame-          Final pictures name with this prefix'
            echo '--background white       Final pictures background color'
            echo '--padding 100            Do not fit to max width/height, leave some padding'
            echo '--quality 80             Final pictures quality'
            echo '--fps 10                 Frames/second speed animation'
            echo '--size 480x800           Final pictures size'
            echo '--folder bootanimation   Folder to store final bootanimation'
            echo '--shuffle true           Shuffle files before process'
            echo '--debug true             Enable/Disable process messages'
            echo '--verbose true           Enable/Disable file processing status'
            echo '--mix true               Create a mixed photo with each transition'
            echo '--blur 0x20+0            For mixed transitions, set the blur effect'
            echo '--max 100                Max numbers of pictures to use (before MIX process)'
            echo '--gif 5                  Create a final demo gif with X*10 fames (0 to disable and 9 as max)'
            echo '--start y                Empty to wait start confirmation, y to start without confirmation'
            echo ''

            exit 2
            ;;

        * )
            if [ "$1" != '' ]; then
                echo ''
                echo "No valid paramenter "$1

                ./$(basename $0) --help

                exit 2
            fi

            break
            ;;
    esac
done

folder=$folder'-'$size

echo ''
echo 'Settings:'
echo '----------------------------------'
echo ''
echo ext=$ext
echo prefix=$prefix
echo background=$background
echo padding=$padding
echo quality=$quality
echo fps=$fps
echo size=$size
echo folder=$folder
echo shuffle=$shuffle
echo debug=$debug
echo verbose=$verbose
echo mix=$mix
echo blur=$blur
echo max=$max
echo gif=$gif
echo start=$start
echo ''

while [ "$start" == '' ]; do
    read -p 'Start with process (Y/n)? ' start
done

if [ "$start" != 'y' ] && [ "$start" != 'Y' ]; then
    echo ''
    echo 'Process aborted'
    echo ''

    exit 1
fi

echo_debug () {
    if [ "$debug" == 'true' ]; then
        echo ''
        echo $1
        echo ''
    fi
}

echo_verbose () {
    if [ "$verbose" == 'true' ]; then
        echo $1
        echo ''
    fi
}

total=`ls *$ext 2> /dev/null | wc -l`

if [ "$total" == '0' ]; then
    echo ''
    echo 'There are not pictures to process'
    echo ''

    exit 1
fi

if [ "`find . -name "* *$ext"`" != '' ]; then
    echo ''
    echo 'There are some pictures with spaces in name'

    read -p 'Do you want that rename it automatically? [Y/n] ' rename

    if [ "$rename" != 'y' ] && [ "$rename" != 'Y' ] && [ "$rename" != '' ]; then
        echo ''
        echo 'Process aborted'
        echo ''

        exit 1
    fi

    echo_debug 'Fixing spaces in filenames'

    find . -name "* *$ext" | rename 's/ /_/g'
fi

if [ "$mix" == 'true' ]; then
    step=2
else
    step=1
fi

echo_debug 'Clearing previous folders'

rm -rf $folder tmp

mkdir tmp

if [ "$max" -gt '0' ] && [ "$total" -gt "$max" ]; then
    echo_debug 'There are '$total' pictures in folder but they will be limited to '$max
    total="$max"
fi

echo_debug 'Resizing '$total' pictures'

cd tmp

convert -quiet -size $size xc:none canvas.gif > /dev/null 2> /dev/null

if [ "$shuffle" == 'true' ]; then
    files=`ls ../*$ext | sort -R`
else
    files=`ls ../*$ext`
fi

num=0
index=0

for i in ${files[@]}; do
    index=$(($index + 1))

    if [ "$max" -gt '0' ] && [ "$index" -gt "$max" ]; then
        break
    fi

    echo_verbose 'Resizing picture '$index' of '$total

    new=$prefix$(printf '%03d' $num)'.png'

    cp "$i" "$new"

    convert -quiet "$new" -background none -bordercolor none -trim -border $padding'x'$padding +repage "$new" > /dev/null 2> /dev/null
    convert -quiet "$new" -resize $size "$new" > /dev/null 2> /dev/null
    convert -quiet -gravity center canvas.gif "$new" -compose Overlay -composite "$new" > /dev/null 2> /dev/null

    num=$(($num + $step))
done

if [ "$mix" == 'true' ]; then
    echo_debug 'Creating mix pictures'

    num=0
    index=0

    for i in $prefix*'.png'; do
        index=$(($index + 1))

        echo_verbose 'Mixing picture '$index' of '$total

        mixed=$prefix$(printf '%03d' $(($num + 1)))'.png'
        next=$prefix$(printf '%03d' $(($num + 2)))'.png'

        if [ ! -f "$next" ]; then
            next=$prefix'000.png'
        fi

        convert -quiet "$next" -background transparent -alpha set -channel A -evaluate Divide 1.5 "$mixed" > /dev/null 2> /dev/null
        composite -quiet -background transparent -gravity center "$mixed" "$i" "$mixed" > /dev/null 2> /dev/null

        mogrify -quiet -background $background -flatten "$i" > /dev/null 2> /dev/null
        mogrify -quiet -background $background -flatten "$mixed" > /dev/null 2> /dev/null

        convert -quiet "$mixed" -motion-blur "$blur" "$mixed" > /dev/null 2> /dev/null

        num=$(($num + 2))
    done

    echo_debug 'Flatten images with '$background' background and quality at '$quality'%'

    mogrify -quiet -format jpg -quality $quality $prefix*'.png' > /dev/null 2> /dev/null
else
    echo_debug 'Flatten images with '$background' background and quality at '$quality'%'

    mogrify -quiet -background $background -flatten -format jpg -quality $quality $prefix*'.png' > /dev/null 2> /dev/null
fi

cd ..

echo_debug 'Creating bootanimation folder'

install -d $folder/part0

mv tmp/$prefix*.jpg $folder/part0

cd $folder

echo $size' '$fps | sed 's/x/ /' > desc.txt
echo '' >> desc.txt
echo 'p 0 0 part0' >> desc.txt
echo '' >> desc.txt

echo_debug 'Creating bootanimation zip'

zip -q0 ${PWD##*/}'-'$size'-bootanimation.zip' desc.txt part0/*

if [ "$gif" -gt '0' ]; then
    echo_debug 'Creating bootanimation demo gif'
    convert -adaptive-resize 480x853 -delay 10 -loop 0 part0/$prefix'0'[0-$gif]*.jpg bootanimation.gif
fi

cd ..

rm -rf tmp

echo_debug 'Done!'

exit 0