From cfb063074a1b65e4bde208fbaab2da6fb90c2aa7 Mon Sep 17 00:00:00 2001 From: NeodarZ Date: Sun, 21 Jan 2018 20:31:49 +0100 Subject: add 2gif script --- scripts/.scripts/2gif.sh | 109 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 109 insertions(+) create mode 100755 scripts/.scripts/2gif.sh (limited to 'scripts/.scripts') diff --git a/scripts/.scripts/2gif.sh b/scripts/.scripts/2gif.sh new file mode 100755 index 0000000..ec325dc --- /dev/null +++ b/scripts/.scripts/2gif.sh @@ -0,0 +1,109 @@ +#!/bin/sh + +# source: https://github.com/Drakirus/dotfiles/blob/master/bin/2gif + +$(ffmpeg --help 2> /dev/null > /dev/null) + +if [[ $? -ne 0 ]]; then + echo "ffmpeg is required!" + exit 1 +fi + +# default values +FPS=12 + +# read the options +TEMP=`getopt -o c:r:f:t:s:d:hl:: --long resolution:,fps:,start:,to:,duration:,help,loop:: -n $0 -- "$@"` +eval set -- "$TEMP" + +# extract options and their arguments into variables. +while true ; do + case "$1" in + -h|--help) + echo -e "Usage: $0 [options] \n" + echo "Options:" + echo " -h, --help Show this help" + echo " -r, --resolution Set the pixels wide (preserving the aspect ratio)" + echo " -f, --fps Set the gif frame rate" + echo " default 12" + echo " -s, --start Skip the first x seconds" + echo " -t, --to Capture to x seconds" + echo " -d, --duration Set the duration" + echo " -l, --loop Number of times to loop the output" + echo " default: no loop" + echo " -l output loop infinitely" + echo " -l10 output loop 10 times" + echo "Examples:" + echo " $0 input.mp4 out.gif" + echo " $0 input.mp4 out.gif -s"00:01" -d5 -r450" + echo " $0 input.mp4 out.gif -s"20:00" -d5 -l --fps30" + exit;; + -r|--resolution) + case "$2" in + "") shift 2 ;; + *) RESOLUTION="$2"; shift 2 ;; + esac ;; + -t|--to) + case "$2" in + "") shift 2 ;; + *) TO="-t $2"; shift 2 ;; + esac ;; + -l|--loop) + case "$2" in + "") LOOP="-loop=0" ; shift 2 ;; + *) LOOP="-loop=$2" ; shift 2 ;; + esac ;; + -f|--fps) + case "$2" in + "") shift 2 ;; + *) FPS="$2"; shift 2 ;; + esac ;; + -s|--start) + case "$2" in + "") shift 2 ;; + *) START="-ss $2"; shift 2 ;; + esac ;; + -d|--duration) + case "$2" in + "") shift 2 ;; + *) DURATION="-t $2"; shift 2 ;; + esac ;; + --) shift ; break ;; + *) echo "Internal error!" ; exit 1 ;; + esac +done + +if [[ "$#" -ne 2 && "$#" -ne 1 ]]; then + echo -e "Usage: $0 [options] \n" + echo -e "Illegal number of parameters or parameters.\nFor more informations:\n $0 --help " + exit 1 +fi + +OUTPUT="$2" + +if [[ "$#" -eq 1 ]]; then + filename=$(basename "$1") + filename="${filename%.*}.gif" + OUTPUT=$filename +fi + +if [[ "$RESOLUTION" -eq "" ]]; then + eval $(ffprobe -v error -of flat=s=_ -select_streams v:0 -show_entries stream=width "$1") + RESOLUTION=${streams_stream_0_width} +fi + +palette=$(mktemp /tmp/palette_XXXX.png) + +filters="fps=$FPS,scale=$RESOLUTION:-1:flags=lanczos" + +# echo $filters + +# http://blog.pkh.me/p/21-high-quality-gif-with-ffmpeg.html#usage + +# create global color palette +ffmpeg -v warning $START $TO $DURATION -i "$1" -vf "$filters,palettegen" -y "$palette" + +# create GIF +ffmpeg -v warning $START $TO $DURATION -i "$1" -i "$palette" -lavfi "$filters [x]; [x][1:v] paletteuse" -y "$OUTPUT" + +rm $palette -- cgit v1.2.1