A curated list of awesome GIF resources.
A list of tools, scripts, libraries, examples & other resources related to the Graphics Interchange Format (GIF).
$ gifit kittens.FFmpeg
Imagemagick
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"
fiFrom DeepDreamVideo, source
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.gifconvert -layers Optimize output.gif output_optimized.giffrom moviepy.editor import *
clip = (VideoFileClip("input.avi")
.subclip((4,00.00),(5,00.00))
.resize(0.3))
clip.write_gif("output.gif")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)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.mp4by Roger Barnes
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")youtube-dl https://www.youtube.com/watch?v=V2XpsaLqXc8Using 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);
}
});or use ccapture.js.
The best ways to use this list are:
…and contributors.
Unless otherwise stated:
Based on a recovered list: