Awesome GIF Awesome

A curated list of awesome GIF resources.

A list of tools, scripts, libraries, examples & other resources related to the Graphics Interchange Format (GIF).

Contents

General Tools

Utilities

Libraries

ActionScript

C++

Haxe

Java

JavaScript

PHP

Objective-C

Swift

GUI

Hosting

Online Tools

Community

Scripts

Frames to GIF

FFmpeg

ffmpeg -f image2 -i image%d.jpg animated.gif

Imagemagick

convert   -delay 20   -loop 0   frames*.png   animated.gif

Bash script (frames2gif.sh) for GraphicsMagick, ImageMagick, FFmpeg

#!/bin/bash
if [ $# -ne 5 ]; then
    echo "please provide the moviename and directory where to store the frames"
    echo "./frames2gif.sh [directory] [movie.mp4] [filename.gif] [gm|im|ffmpeg] [png|jpg]"
    exit 1
fi
    if [ "png" == "$5" ]; then
        suffix="png"
    else
        suffix="jpg"
    fi

    CONVERT=$(which convert)
    GM=$(which gm)
    FFMPEG=$(which ffmpeg)
    FFPROBE=$(which ffprobe)
    FPS=$($FFPROBE -show_streams -select_streams v -i "$2"  2>/dev/null | grep "r_frame_rate" | cut -d'=' -f2 | cut -d'/' -f1)
    echo "FPS: ${FPS}"
if [ "im" == "$4" ]; then # use imagemagick
    FPS=$(echo "1 / ${FPS} * 100" |bc -l)
    $CONVERT "$1/*.${suffix}"  -delay ${FPS} -loop 0 "$3"
elif [ "gm" == "$4" ]; then # use graphicsmagick
    FPS=$(echo "1 / ${FPS} * 100" |bc -l)
    $GM convert "$1/*.${suffix}"  -delay ${FPS} -loop 0 "$3"
else # use crappy gif-algorithm from ffmpeg
    $FFMPEG -f image2 -framerate ${FPS} -i "$1/%08d.${suffix}" "$3"
fi

From DeepDreamVideo, source

GIF to frames

ffmpeg -i video.mpg image%d.jpg

convert -coalesce animated.gif image%05d.png

High quality GIF

with ffmpeg / based on this article

#!/bin/sh
start_time=30
duration=3
ffmpeg -y -ss $start_time -t $duration -i input.avi \
-vf fps=10,scale=320:-1:flags=lanczos,palettegen palette.png

#!/bin/sh
start_time=30
duration=3
ffmpeg -ss $start_time -t $duration -i input.avi -i palette.png -filter_complex \
"fps=10,scale=320:-1:flags=lanczos[x];[x][1:v]paletteuse" output.gif

Optimize GIF

convert -layers Optimize output.gif output_optimized.gif

Lossy GIF Compressor

./gifsicle -O3 --lossy=80 -o lossy-compressed.gif input.gif

Lossy Gif

Making GIF from video

from moviepy.editor import *

clip = (VideoFileClip("input.avi")
        .subclip((4,00.00),(5,00.00))
        .resize(0.3))
clip.write_gif("output.gif")

article

Cinemagraphs

Freezing a region

from moviepy.editor import *

clip = (VideoFileClip("input.avi")
        .subclip((4,00.00),(5,00.00))
        .resize(0.3)
        .fx(vfx.freeze_region, outside_region=(170, 230, 380, 320)))
clip.write_gif("output.gif", fps=15)

article

ffmpeg \
-ss ${starttime} -t ${duration} -i ${vidfile}                         `# body of loop` \
-ss TODO ${starttime} MINUS ${duration} -t ${fadetime} -i ${vidfile}  `# lead-in for crossfade` \
-loop 1 -i ${stillfile}                                               `# masked still image` \
-filter_complex "
  [0:v]setpts=PTS-STARTPTS[vid];                                      `# speed adjustment - not needed here, so noop`
  color=white,scale=3840x2160,fade=in:st=0:d=${fadetime}[alpha];      `# crossfade alpha, double length ahead of speed change`
  [1:v][alpha]alphamerge[am];                                         `# apply alpha to lead-in`
  [am]setpts=PTS+(${duration}-${fadetime})/TB[layer2];                  `# speed adjustment and offset for lead-in`
  [vid][layer2]overlay[oo];                                           `# overlay for crossfade`
  [oo][2:v]overlay=shortest=1[out1];                                  `# overlay still image`
  [out1]crop=w=${cropfactor}*iw:h=${cropfactor}*ih:y=${yoffset}*ih,scale=${outputwidth}:-1, `# crop and scale`
  eq=gamma=${gamma}:contrast=${contrast}:saturation=${saturation},unsharp                   `# final adjustments`
" -an output.mp4

Perfect Loop

import moviepy.editor as mp
from moviepy.video.tools.cuts import FramesMatches

clip = mp.VideoFileClip("input.avi").resize(0.3)
scenes = FramesMatches.from_clip(clip, 10, 3)

selected_scenes = scenes.select_scenes(2, 1, 4, 0.5)
selected_scenes.write_gifs(clip.resize(width=450), "./outputs_directory")

article

YouTube video to GIF

youtube-dl https://www.youtube.com/watch?v=V2XpsaLqXc8

Youtube-dl

Grabbing each frame of an HTML5 Canvas

Using PhantomJS.

Example with this canvas.

var webPage = require('webpage');
var fs = require('fs');
var page = webPage.create();

var NB_FRAME = 100;
var current = 0;

page.open('http://www.effectgames.com/demos/canvascycle/?sound=0',
function(status) {
  if (status === "success") {
      var current = 0;
      var grabber = setInterval(function () {
          var frame = page.evaluate(function() {
           return document.getElementById('mycanvas').toDataURL("image/png").split(",")[1];
          });
          fs.write("./frame-" + current + ".png",atob(frame), 'wb');
      if (++current === NB_FRAME) {
         window.clearInterval(grabber);
         phantom.exit(0);
      }
    }, 1000);
  }
});

Miscellaneous

Use

The best ways to use this list are:

Credits

By Craig Davison and contributors.

Based on a recovered list by Ismail Baaj.